281 results on '"Darkness"'
Search Results
2. Tunnel motion: Pupil dilations to optic flow within illusory dark holes.
- Author
-
Laeng, Bruno, Nabil, Shoaib, and Kitaoka, Akiyoshi
- Subjects
OPTICAL flow ,PUPILLOMETRY ,EYE examination ,TIME dilation ,REGRESSION analysis - Abstract
We showed to the same observers both dynamic and static 2D patterns that can both evoke distinctive perceptions of motion or optic flow, as if moving in a tunnel or into a dark hole. At all times pupil diameters were monitored with an infrared eye tracker. We found a converging set of results indicating stronger pupil dilations to expansive growth of shapes or optic flows evoking a forward motion into a dark tunnel. Multiple regression analyses showed that the pupil responses to the illusory expanding black holes of static patterns were predicted by the individuals' pupil response to optic flows showing spiraling motion or "free fall" into a black hole. Also, individuals' pupil responses to spiraling motion into dark tunnels predicted the individuals' sense of illusory expansion with the static, illusory expanding, dark holes. This correspondence across individuals between their pupil responses to both dynamic and static, illusory expanding, holes suggests that these percepts reflect a common perceptual mechanism, deriving motion from 2D scenes, and that the observers' pupil adjustments reflect the direction and strength of motion they perceive and the expected outcome of an increase in darkness. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. Molecular Insights into the Role of Sterols in Microtuber Development of Potato Solanum tuberosum L.
- Author
-
Herrera-Isidron, Lisset, Valencia-Lozano, Eliana, Uribe-Lopez, Braulio, Délano-Frier, John Paul, Barraza, Aarón, and Cabrera-Ponce, José Luis
- Subjects
GENE expression ,GENE regulatory networks ,PRODUCT coding ,POLYMERASE chain reaction ,RIBOSOMAL proteins - Abstract
Potato tubers are reproductive and storage organs, enabling their survival. Unraveling the molecular mechanisms that regulate tuberization is crucial for understanding how potatorespond to environmental stress situations and for potato breeding. Previously, we did a transcriptomic analysis of potato microtuberization without light. This showed that important cellular processes like ribosomal proteins, cell cycle, carbon metabolism, oxidative stress, fatty acids, and phytosterols (PS) biosynthesis were closely connected in a protein–protein interaction (PPI) network. Research on PS function during potato tuberization has been scarce. PS plays a critical role in regulating membrane permeability and fluidity, and they are biosynthetic precursors of brassinosteroids (BRs) in plants, which are critical in regulating gene expression, cell division, differentiation, and reproductive biology. Within a PPI network, we found a module of 15 genes involved in the PS biosynthetic process. Darkness, as expected, activated the mevalonate (MVA) pathway. There was a tight interaction between three coding gene products for HMGR3, MVD2, and FPS1, and the gene products that synthetize PS, including CAS1, SMO1, BETAHSD, CPI1, CYP51, FACKEL, HYDRA1, SMT2, SMO2, STE1, and SSR1. Quantitative real-time polymerase chain reaction (qRT-PCR) confirmed the expression analysis of ten specific genes involved in the biosynthesis of PS. This manuscript discusses the potential role of genes involved in PS biosynthesis during microtuber development. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
4. The first emerging records of a dragonfly in the dark zone of subterranean ecosystems: Exuviae and newly emerged adults of Hyrcanian Goldenring, Cordulegaster vanbrinkae in Danial Cave, northern Iran.
- Author
-
Ghelich Khani, Pouria, Kiany, Mohsen, and Qashqaei, Ali Turk
- Subjects
CAVE animals ,ENDEMIC species ,NATIONAL monuments ,CAVES ,TWILIGHT - Abstract
Riverine caves are special habitats that are home to many aquatic and terrestrial species. Some Odonata species and their emerging are recorded at the entrance and in the twilight zones of subterranean habitats around the world. However, the emergence of any Odonata species has not been recorded in the dark zones of caves or other subterranean habitats. We report the first evidence of the emerging of the Hyrcanian Goldenring, Cordulegaster vanbrinkae Lohmann, 1993, as an endemic species of the Hyrcanian biogeographical region, in the dark zone of Danial Cave, in the World Heritage‐listed Hyrcanian Forests, northern Iran. During 2020–2023, three newly emerged and three exuviae of the species were recorded in the entrance zone (25 m) and the dark zone of the cave (200–280 m). The main hypothesis of the study is the entry and exit of adults from the cave entrance. However, we still do not know if the newly emerged will leave the cave or not. We still need more study on the biology and ecology of the species inside and around the cave. Danial Cave, with its high biodiversity, is one of the most important caves in the Middle East, and is urgently in need of conservation as a national natural monument. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Impact of the annular solar eclipse on December 26, 2019 on the foraging visits of bees.
- Author
-
Sinu, Palatty Allesh, Jose, Athira, and Varma, Sangeetha
- Subjects
SOLAR eclipses ,STINGLESS bees ,HONEYBEES ,ANIMAL behavior ,SENSITIVE plant ,POLLINATION by bees ,BEES - Abstract
Solar eclipse has remarkable effect on behavior of animals. South India experienced a 97% magnitude annular eclipse on December 26, 2019 during 08:04–11:04 h with the totality phase appeared during 09:25–09:30 h. We investigated whether the foraging activity of the bees was limited by the eclipse, what bees are affected most, and which part of the eclipse was critical for bee activities to understand how a group of insects that rely the Sun, the sunlight, and the sun rays for their navigation and vision behaves to the eclipse. We opted to watch the bees in their foraging ground, and selected the natural flower populations of Cleome rutidosperma, Hygrophila schulli, Mimosa pudica, and Urena sinuata—some of the bee-friendly plants—to record the visitor richness and visitation rate on the flowers on eclipse and non-eclipse days and during the hour of totality phase and partial phase of the eclipse. Fewer flower-visiting species were recorded on the eclipse day than on the non-eclipse days, but in the period of totality, very few bee species were active, and limited their activity to only one population of C. rutidosperma. Visits of honey bees and stingless bees were affected most, but not that badly of solitary bees and carpenter bees. Bees, particularly the social bees use Sun for navigation and deciphering information on forage sources to fellow workers. The eclipse, like for many other animals, might hamper bees' orientation, vision, and flight. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. The Tale of Darkness in Amos Oz's Literary Work.
- Author
-
Nethanel, Lilah
- Subjects
LIGHT ,POSTCOLONIAL literature ,HERMENEUTICS - Abstract
In this article, I present an analysis of Amos Oz's writings, from his early collection of stories, Where the Jackals Howl (1965) to his autofictional novel A Tale of Love and Darkness (2002). Throughout the tumultuous first five decades of Israel's Independence, Oz's oeuvre consistently expressed an implicit tale of darkness. Darkness is the key figure of the national abyss in Oz's literature. As a political category, Oz's interpretation of darkness bears the traces of postcolonial literature, where darkness is a root metaphor; as a poetic principle, darkness holds the unsaid within the literary text. Marking the unsaid, darkness turns to be a recall for depth hermeneutics, as it acknowledges "the hidden" as a core category of meaning in national literatures. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
7. Remarkable Trace Reflections on Colonialism and Racism in Conrad's Heart of Darkness.
- Author
-
Abdul Aziz Zahdeh, Shorooq Abdul Moez
- Subjects
RACISM in literature ,IMPERIALISM ,SPIRITUALITY - Abstract
This paper aims to analyze the issue of colonialism and racism in Joseph Conrad's novel Heart of Darkness. The researcher surveyed scholarly articles, books and other sources relevant to the area of the research, providing a critical evaluation of this work. Basically, the title carries a rich connotation which indicates darkness in the colonial European psyche, making it disproportionate to equate physical darkness with spiritual darkness. The common characteristics of savagery between the Europeans and the Africans are traced back to a mutual dark and weak civilization, which in turn makes room for the more powerful to impose imperialistic rules on the less powerful. Further, this paper shows that the European banner of 'civilization' is hypocritical and raised to legitimize the false authority of taking over the jungles of Africa. The scenes revealing their corruption, including their acts of violence and murder, are concluded to be the dominant features of the civilization which they exalt. There is too a metaphoric but ironic correlation between the Africans and the Europeans regarding worshipping idols, as the white man is praying to ivory, and the black man is practicing questionable beliefs of spirituality. Moreover, the European ignorance of the dark continent shapes the fictional perception of black people and the African landscape as "prehistoric". Besides, there is a point of distinction between the white man of culture and the black man of nature, yet this gap neither justifies conquering Africa nor disgraces the African cultural inheritance. At last, there is a parallel image presented with regard to the European empire representative, Kurtz and his alleged possessions. Kurtz's white fiancé and Kurtz's black mistress portray the gap between European ideals and African disconnection with the least implications of civilization, which both are ultimately denounced by European imperialism. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
8. Defining nothingness: Kazimir Malevich and religious renaissance.
- Author
-
Levina, Tatiana
- Abstract
In the treatise "Suprematism. The World as Objectlessness or Eternal Peace" (1922), Kazimir Malevich positions himself as a "bookless philosopher" who did not consider theories of other philosophers. In fact, the treatise contains a large number of references to philosophers belonging to different traditions. A careful reading shows the extent to which Malevich's theory is linked to the Russian religious philosophy of the early twentieth century. In my view, Nikolai Berdyaev, Sergei Bulgakov, Pavel Florensky—philosophers of "Religious Renaissance," as well as some other intellectuals—acquaint avant-gardists with Neoplatonic conceptions of apophasis. Malevich had access to ideas of fourteenth-century theologian Meister Eckhart, and I will refer to two sources to demonstrate this, including Margarita Sabashnikova's translation of Eckhart and works of Sergei Bulgakov. Without any reference, Malevich retells the concepts of Dionysius the Areopagite, Meister Eckhart, and Gregory Palamas. I will demonstrate parallels between the treatise on Suprematism and Meister Eckhart's Sermons concerning the concepts of apophaticism, Platonism, and Nothingness. I will also touch on the theme of Divine Light in the theology of Palamas (fourteenth century) to show the diversity of the avant-garde's sources of inspiration. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
9. 'Almighty God, give us grace to cast away the works of darkness, and put on the armor of light': Re-thinking Advent Themes of Darkness with Gregory of Nyssa.
- Author
-
Thomas, Gabrielle
- Subjects
THEOLOGICAL seminaries ,GOD ,ANGLICANS ,EXPERTISE ,ANTI-racism ,SPIRITUALITY - Abstract
This essay addresses challenges that emerged during Advent through recent experience of lecturing at Berkeley Divinity School, the Episcopal Seminary at Yale. For many of my students, Advent 2020 presented particular challenges since they found that the recurring utilization of 'darkness' as a metaphor for sin and death did not sit easily with their commitment to anti-racist thought and practice. This essay does not attempt to provide a definitive model for how Anglicans might engage fully with Advent themes, but serves as a paper to 'think with' in which the author (a) engages with Michael Battle's work on Anglican spirituality and (b) describes how her own expertise on Gregory of Nyssa was brought to bear on present needs. The Advent focus on darkness and light, I propose, does not need to be circumvented but provides Anglicans who are attentive to the problems of racism with an opportunity to examine further their own approach to 'darkness'. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
10. Effects of a Diet Low in Vitamin and Mineral Complex and Darkness on the Growth Performance, Mineralization and Femur Histological Structure of Broiler Chickens.
- Author
-
Boussouar, H., Khenenou, T., Bennoune, O., Lamraoui, R., Fares, M. A., Rahmoun, D. E., Kadrine, N., Benrezak, S., and Kahoul, M. A.
- Subjects
BROILER chickens ,BONE growth ,FEMUR ,WEIGHT gain ,MINERAL deficiency ,POULTRY feeding - Abstract
Background: The aim of this study was to investigate the effects of dietary vitamin and mineral deficiency and darkness on growth performance, femur size, mineralization and bone microstructure in broiler chickens. Methods: 120 male Cobb 500 chicks were randomly assigned to three groups, including a control group and two experimental groups (1st group on a vitamins and minerals deficient diet, 2nd group reared in total darkness), with 40 subjects per group from day 7. Daily calculations of average weight and weight gain were performed and morphological and histomorphometric measurements of the femur were performed on days 28, 35 and 42. Result: The results revealed that the experimental groups showed a significant decrease in growth performance, body weight and weight gain (P<0.05) compared to the control group. In addition, a reduction in bone mineralization (weight and ash percentage) and altered bone microarchitecture were observed in the experimental groups. These results indicated that vitamin and mineral complex deficiencies in feed and darkness negatively affected growth performance and trophic and morpho-histological aspects of long bones in broilers. The results of this study may have significant implications for the poultry industry, as they highlights the need to consider factors such as nutrition and lighting conditions when rearing broiler chickens for optimal growth and health. In conclusion, the present study provides valuable insights into the effects of dietary deficiencies of the vitamin-mineral complex and darkness on broiler growth and bone development. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
11. Efficacy of castor oil cream in treating infraorbital hyperpigmentation: An exploratory single‐arm clinical trial.
- Author
-
Parvizi, Mohammad Mahdi, Saki, Nasrin, Samimi, Soodabeh, Radanfer, Roya, Shahrizi, Mohammad Miaad, and Zarshenas, Mohammad Mehdi
- Subjects
CASTOR oil ,HYPERPIGMENTATION ,CONVENIENCE sampling (Statistics) ,CLINICAL trials ,PATIENT satisfaction ,NATUROPATHY ,COSMETIC dermatology - Abstract
Introduction: Infraorbital hyperpigmentation represents one of the most prevalent conditions in cosmetic dermatology. To treat this condition, many patients prefer natural remedies. This study explored the efficacy of topical castor oil cream in treating patients with infraorbital hyperpigmentation. Methods: We conducted an exploratory single‐arm clinical trial at the Shahid Faghihi Dermatology Clinic and Molecular Dermatology Research Center of Shiraz University of Medical Sciences, Shiraz, Iran, during 2021–2022. Using the convenience sampling method, we enrolled 25 patients with infraorbital hyperpigmentation. We instructed the patients to apply topical castor oil cream twice daily for 2 months. The darkness, melanin, and erythema levels were evaluated by VisioFace® 1000 D and SkinColorCatch® devices. We used a visual analog scale to assess skin laxity, wrinkles, and patient satisfaction. Data analysis was done with Stata version 14.2. Results: The data of 22 patients with a mean age of 40.92 ± 7.33 years were analyzed. The VisioFace® scores decreased significantly by the end of the study [right eyes: mean difference (MD): ‐5.63 (95% CI: −7.12 to −4.15), p < 0.001; left eyes: MD: ‐5.91 (95% CI: −7.46 to −4.36), p < 0.001]. Moreover, castor oil cream significantly reduced the melanin level, wrinkles, and skin laxity in the infraorbital region (p < 0.05). Conclusions: Castor oil cream seems to be an effective alternative for treating infraorbital hyperpigmentation. Randomized clinical trials are needed to confirm our findings. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
12. Umm Kamel's Affair: How Infidelity Liberated the Night Sky in Jabal 'Amil.
- Author
-
Nahleh, Mohamad
- Subjects
CLIMATE change ,LIGHT pollution ,CITIES & towns ,SKY ,LEBANESE ,NATIONALISM - Abstract
Weakened by the expansion of several imperial and colonial projects, the inhabitants of Jabal 'Amil survived as second-class citizens, severed from the urban expression of Lebanese nationalism, and having to formulate their identity amid countless transgressions on their scholarship and literary production. It is thus in the spectacles of the universe and the mysteries of the cosmos that they inscribed fragments of their oral legacy, turning the night sky into an archive that no empire could burn or colonize. And yet it is light pollution, leaking from the same cities they were once forced to nourish, that quickly established itself as the main transgressor, clearing the faintest stories in their celestial library. Although distant manifestations of Islamic cosmology could no longer animate their rural nights, new alterations in the sky after dark, no matter how violent, have proven worthy carri-ers of their modern myths and legends. And it is onto the loudest object in their polluted sky, the Israeli reconnaissance drone IAI Searcher MK, that they grafted the tale of their legendary matriarch Umm Kamel. I argue that Umm Kamel's physical and symbolic ascent into the sky was orchestrated by a modern generation of 'Amilis whose infidelity to the celestial stories authored by their ancestors fortified their ability to transform the combined pressures of pollution and colonization. United by their efforts to forge new imaginaries around a starless night, they invite reflection on the possibility (and responsibility) of confronting the sky we have together inherited rather than lamenting the one we have lost. In tracing Umm Kamel's transformation from figure to constellation, I contend that their cosmic interventions set the stage for new alliances between design and darkness, and ultimately, for a more expanded imagination of night design, particularly within the context of the climate crisis. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
13. Karanlık Risalesi: Felsefeden Mistisizme.
- Author
-
Karakaya, Mehmet Murat
- Abstract
Copyright of Eskiyeni is the property of Anadolu Ilahiyat Akademisi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
14. Effectiveness of sound and darkness interventions for critically ill patients' sleep quality: A systematic review and component network meta‐analysis.
- Author
-
Fang, Chiu‐Shu, Tu, Yu‐Kang, Chang, Shih‐Lun, Kuo, Chia‐Chi, Fang, Ching‐Ju, and Chou, Fan‐Hao
- Subjects
SLEEP disorders treatment ,MEDICAL databases ,CINAHL database ,MEDICAL masks ,META-analysis ,MEDICAL information storage & retrieval systems ,CRITICALLY ill ,NOISE ,SYSTEMATIC reviews ,PATIENTS ,EYE ,SLEEP disorders ,LIGHT ,HEARING protection ,MEDLINE ,RELAXATION techniques - Abstract
Background: Noise and lighting are prime factors of poor sleep quality in critically ill patients, which impair recovery and increase the risk of delirium or complications. Aim: To identify and rank the effectiveness of sound and darkness interventions on the sleep quality of critically ill patients. Study Design: This systematic review and component network meta‐analysis was based on the Preferred Reporting Items for Systematic Reviews incorporating the Network Meta‐Analyses (PRISMA‐NMA) Statement. The Embase, MEDLINE, Cochrane CENTRAL, CINAHL, Airiti Library, and Google Scholar databases were searched from inception to August 10, 2021, for randomized controlled trials (RCTs) on sound and darkness interventions targeting critically ill patients' sleep quality. We applied standard and component NMA to determine the effects of interventions. The certainty of evidence was evaluated using the Cochrane risk‐of‐bias tool (V.2.0) and the online Confidence in Network Meta‐Analysis (CINeMA) application. Results: Twenty‐four RCTs with 1507 participants who used combined interventions constituting seven competing interventions were included in the standard NMA. The combination of earplugs, eye masks, and music; eye masks alone; earplugs combined with eye masks; and music alone had beneficial intervention effects. The combination of earplugs, eye masks, and music was the best intervention, and these components had no interaction effect. An eye mask had the best relative effect, followed by music, quiet time, and earplugs. Conclusions: This study provides clinical evidence of the effectiveness of using eye masks, music, and earplugs to improve sleep quality in critically ill patients. We also recommend future research using bedtime music, nocturnal eye masks, and quiet time, which had the best relative effects on sleep quality. Relevance to clinical practice: This study provides recommendations for interventions that nurses can use to improve critically ill patients' sleep quality. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
15. Anamnesis radości.
- Author
-
Shallcross, Bożena
- Subjects
LISTENING ,AUTHORS ,NARRATIVES - Abstract
Copyright of Fabrica Litterarum Polono-Italica is the property of Wydawnictwo Uniwersytetu Slaskiego and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
16. Effects of night lighting with red light on melatonin and milk quality parameters in holstein cows.
- Author
-
Garip, Rukiye, Başpınar, Nuri, Alan, Beyza Suvarıklı, Garip, Mustafa, Coşkun, Pınar, and Arslan, Emre
- Subjects
MELATONIN ,MILK quality ,HOLSTEIN-Friesian cattle ,BLOOD sampling ,BLOOD serum analysis - Abstract
Copyright of Etlik Veteriner Mikrobiyoloji Dergisi is the property of Veteriner Kontrol Merkez Arastirma Enstitusu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
17. The Darkness in the Poem, and the Light: Beyond Witness—the Visionary, Non-Soteriological Poetics of Paul Celan.
- Author
-
Joris, Pierre
- Subjects
ROMANIAN poetry ,JEWISH identity - Abstract
Reflecting on a question posed to the author by the poet Gerrit Lansing concerning a possible soteriological dimension of Paul Celan's thought, this essay argues for Celan as a radically secular figure—revolutionary both politically and poetically—whose Jewishness was and remained an absolute for him, without this, however, having led to a retro-assimilation within a, or any, religious or theological stance. Using certain core images of Celan's poetry—his doors—and thinking their metaphoricity and polysemanticism through with the help of the painter Irving Petlin's series of works inspired by and reflecting on Celan's doors, the essay, after examining a range of critical takes on Celan—by the likes of Otto Pöggeler, George Steiner, Hans-Georg Gadamer, Jean Bollack, and others—comes to the conclusion that probably the only salvific quality for Celan lay in the act of writing itself, and was thus not a transcendental reach. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
18. Day and night effects on the animal and plant kingdoms: The eve of chronobiology.
- Author
-
Touitou, Yvan
- Subjects
CHRONOBIOLOGY ,CIRCADIAN rhythms ,PLANT life cycles ,BIOLOGICAL rhythms ,MILITARY hospitals ,EIGHTEENTH century - Abstract
For a long time, cyclical changes in the body were assumed to be caused by the cyclicity of the environment (day-night, seasons). The concept of daily and seasonal changes was first documented in the 18th century by astronomer D'Ortous de Mairan, who demonstrated that plant leaf motions varied depending on the time of day, and by Linné's description of his floral clock in 1751. In 1832, De Candolle was the first to experimentally establish the endogeneity of rhythms in plants, underlining the notion of what we now term free-running rhythms. Julien-Joseph Virey made his own contribution in his thesis, published in 1814, against this backdrop, in which he examined the knowledge of his day on the daily and seasonal biological fluctuations of living matters. He emphasized the relevance of the environment's day-night cycle on plant life and created a list of plants based on their diurnality or nocturnality. He expanded on the issue of rhythmic changes in human health and sickness and provided his own data on the daily fluctuations in patient mortality he discovered at the Val-de-Grâce military hospital where he was chief pharmacist. What is crucial is his use of terms such as "living clock," "entrainment," and "innate rhythm" and the applicability of the advanced concepts Because Virey introduced the notion of temporal variations and the impact of the alternation of day and night on these variations, this thesis is a historic testimonial to understanding of biological rhythms in the first half of the 19th century. We may assume from his writings on rhythmic fluctuations that he offered the theory, followed by an experiment, however primitive, from which he drew conclusions and postulated a mechanism (the living clock) that would later prove accurate. All of these aspects indicate that this study represents an early exploration of the notion of temporal variations in humans. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
19. Protest and the Opacity of Literature: James Baldwin and Paul Celan.
- Author
-
Johnson, Matthew
- Subjects
LITERATURE ,POETICS ,REALISM ,HEGEMONY ,TRANSLATING & interpreting ,ANTISEMITISM - Abstract
This article analyzes Paul Celan's translation of James Baldwin's "Everybody's Protest Novel" and considers the connections between the poetics of these two writers. In addition to their shared preoccupation with and rearticulation of terms such as human, creature, and darkness, the translation reveals how they explored the relationship between literature and reality at early and transitional moments in their careers. While rejecting regnant modes of realism, Baldwin and Celan insisted, in different but related ways, on the bearing of the world on their writing, which they understood as a response to historical catastrophes that resisted inherited categories and hegemonic language. This article demonstrates how reading Baldwin's essay and Celan's translation together can help us understand their peculiar realism anew, and it elucidates how this aspect of their work continues to feel urgent today, with specific reference to the writing of Claudia Rankine. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
20. Influence of Darkness Program on Performance Characteristics and Some Physiological Parameters of Ross 308 Boiler Chicks.
- Author
-
M., Kalaba,Z., Ismail, F. S., Abd El Salam, A. K., and Sherif, Sara Kh.
- Subjects
CHICKS ,WOOD waste - Abstract
Copyright of Journal of Animal & Poultry Production is the property of Egyptian National Agricultural Library (ENAL) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
21. "Receive the Holy Spirit".
- Author
-
Ford, David F.
- Subjects
HOLY Spirit ,SPIRITUALITY ,CHRISTIAN life ,DESIRE for God - Abstract
A pivotal moment in the Gospel of John comes when the resurrected Jesus breathes the Spirit into his disciples and sends them as he was sent. The double thrust of Johannine spirituality is desiring Jesus and desiring what he desires: on the one hand, going deeper into relationship with Jesus in trust, understanding and love; and, on the other hand, going deeper into the world now, inspired by how Jesus was sent, with learning, praying, and loving as the core practices of disciples. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
22. 'He put darkness between you': A version of the Deliverance at the Sea Narrative in Exodus 14:20 and Joshua 24:7.
- Author
-
O'Hara, Neil
- Subjects
SKEPTICISM - Abstract
My claim in this short paper will be that Ex 14:19-20 preserves a variant where YHWH uses a supernatural darkness alone, and not a cloud, to separate the two armies at the sea. This reading solves long perceived difficulties in the text of Ex 14:19-20, and coheres with the version of the incident related in Josh 24:6-7. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
23. Two types of GLR channels cooperate differently in light and dark growth of Arabidopsis seedlings.
- Author
-
Krzeszowiec, Weronika, Lewandowska, Aleksandra, Lyczakowski, Jan Jakub, Bebko, Kateryna, Scholz, Sandra S., and Gabryś, Halina
- Subjects
GLUTAMATE receptors ,CHEMICAL inhibitors ,BLUE light ,REGULATION of growth ,PLANT photomorphogenesis - Abstract
Background: GLutamate Receptor-like (GLR) channels are multimeric, ionotropic, ligand-gated plant transmembrane receptors. They are homologous to mammalian glutamate receptors, iGLuRs, which are critical to neuronal function. GLRs have been reported several times to play a role in photomorphogenesis. However, to date, no study has looked at the mechanism of their involvement in this process. Here we focused on examining the impact of GLRs on the regulation of early seedling growth in blue light, red light, and in the dark. Results: Wild type and six photoreceptor mutant seedlings were grown on media supplemented with known iGLuR/GLR channel antagonists: MK-801, which non-competitively blocks NMDA channels in mammalian cells, and CNQX, known for competitive blocking of AMPA channels in mammalian cells. The lengths of hypocotyls and roots were measured in seedlings of phyA, phyB, phot1, phot2, cry1, and cry2 mutants after 7 days of in vitro culture. Changes in growth parameters, both in light and in darkness upon application of chemical antagonists, show that both types of GLR channels, NMDA-like and AMPA-like, are involved in the regulation of seedling growth irrespective of light conditions. Analysis of seedling growth of photoreceptor mutants indicates that the channels are influenced by signaling from phot1, phot2, and cry1. To extend our analysis, we also evaluated the elicitation of a calcium wave, which is likely to be partially driven by GLRs, in Arabidopsis seedlings. The changes in cellobiose-induced calcium waves observed after applying GLR inhibitors suggest that both types of channels likely cooperate in shaping Arabidopsis seedling growth and development. Conclusions: Our work provides the first experimental evidence that two types of GLR channels function in plants: NMDA-like and AMPA-like. We also demonstrate that the channels are involved in seedling growth and development, at least partially through modulation of calcium signaling, but they are unlikely to play a major role in photomorphogenesis. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
24. The Rothko Chapel: Profane or Sacred Space?
- Author
-
Allen, Mark
- Subjects
CHAPELS ,SACRED space ,RELIGIOUS adherents ,ATHEISM - Abstract
Despite the atheism of renowned abstract expressionist painter Mark Rothko, the artist was commissioned by Christians to create a sacred space that was originally intended to be used by religious believers: the Rothko Chapel in Houston, Texas. The project started out as a collaboration between Rothko and another atheist: famed architect Phillip Johnson, who designed several prominent religious spaces throughout his distinguished career. While Johnson removed himself from the Chapel project early on, Rothko would have carried his conceptual vision all the way to the end if it were not for his tragic suicide just prior to the Chapel's completion. Using as a guide the criteria for sacred space set forth in the classic work The Sacred and The Profane by famed historian Mircea Eliade, I will consider the question of how a religious space designed by non-believers can be rightly considered sacred, as well as ways in which it falls short. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
25. الأيديولوجية التابعة: دراسة ما بعد الكولونيالية لرواية النمر الأبيض" لارفاند اديجا أنموذجاً.
- Author
-
مريم محسن جبر إبر
- Subjects
SUBALTERN ,COLONIES ,EQUALITY ,POSTCOLONIALISM ,POSTCOLONIAL literature ,RACE ,SOCIAL alienation - Abstract
Copyright of Journal of Babylon Center for Humanities Studies is the property of Republic of Iraq Ministry of Higher Education & Scientific Research (MOHESR) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
26. Attending sideways, disoriented, in the dark: A dream that longs to no-one.
- Author
-
Georgelou, Konstantina and Scholts, Nienke
- Subjects
SUNRISE & sunset ,DRAMATIC structure - Abstract
This co-authored article discusses Asa Horvitz's three-hours long performance A Dream that Belongs to No-one (2021) as a generative experience of disorientation. The performance takes place as the sun is setting, in a big wooden space with glass windows. The audience is given a booklet with fragments of text that describe experiences of overwhelming streams of images, and sits around the sides of the space. Through a dramaturgy of a sideways moving attention that occurs while the night falls, two entangled experiences of disorientation are proposed: a pause in the dark that allows attention to drift; and a sense of falling into darkness that evokes groundlessness and instability. While in disorientation, the audience is immersed in cycles of dream-images that they are invited to wake up to, and to summon these as a way to reorient themselves. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
27. Weather, Light and Darkness in Remote Island Policing: Expanding the Horizons of the Criminological Imagination.
- Author
-
Souhami, Anna
- Subjects
POLICE ,LAW enforcement ,ISLANDS ,CRIMINOLOGY ,CRIME scenes ,WEATHER ,LIGHT ,ECOLOGY - Abstract
The conceptual development of criminological scholarship has been inextricable with the city. This is particularly apparent in relation to policing, where foundational ideas about police work and culture are derived almost exclusively from research in cities. But how has the ubiquity of the urban context limited our criminological imagination? Drawing on a major ethnography of policing in two remote Scottish archipelagos, this paper explores how the remote island context brings new phenomena within the scope of criminological inquiry, illuminating the selectivity of its dominant preoccupations. It explores the centrality of (1) the weather, light and darkness and (2) immersion in the physical environment in the way island officers perceive the places, people and problems they encounter, and the implications for how they exercise state power. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
28. Eco-Szenarien der Finsternis. Chorisches im Anthropozän.
- Author
-
Strowick, Elisabeth
- Subjects
MIRRORS ,VEHICLES - Abstract
Against the backdrop of approaches that frame the Anthropocene in scenic terms ("Anthropo-scene," Una Chaudhuri), this paper examines scenic ecologies in Arno Schmidt's Black Mirrors and Werner Herzog's Lessons of Darkness. Based on the analysis of the spatio-temporality and agency of Schmidt's and Herzog's scenic ecologies, the essay explores the extent to which the chorus facilitates a rethinking of the Anthropo(s)cene. The choral in the Anthropocene is thereby conceptualized in three ways: as a scene of force, "scale critique" (Derek Woods), and the emergence of the ground. Schmidt's and Herzog's eco-scenarios are scenes of darkness. What reworking does the scenic undergo in and out of darkness and what does this imply for ecological thinking? Under the sign of darkness, the ecological scene opens up as one of extinction, a scene of an uncanny ecology, whose scenic vehicle is the chorus. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
29. Darkness and Sustainability: Other Species' Night and Human Aesthetic Preferences.
- Author
-
Tainio, Matti
- Subjects
SUSTAINABILITY ,ARTIFICIAL light gardening ,INDOOR gardening ,LIGHTING ,SUBSPECIES - Abstract
This article explores the connections between darkness and sustainability, particularly in contemporary night environments, and the needs of various species. Artificial light plays a vital role in shaping the aesthetics of today's nightscapes. For humans, illumination during night-time serves both practical purposes after sunset and enhances the aesthetic appeal of the night. However, this same artificial lighting poses disturbances to other species. Consequently, using artificial light at night is a significant issue in discussing a sustainable future. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
30. Comparative analysis of two kinds of garlic seedings: qualities and transcriptional landscape.
- Author
-
Ai, Penghui, Xue, Jundong, Zhu, Yifei, Tan, Wenchao, Wu, Yifei, Wang, Ying, Li, Zhongai, Shi, Zhongya, Kang, Dongru, Zhang, Haoyi, Jiang, Liwen, and Wang, Zicheng
- Subjects
GARLIC ,MITOGEN-activated protein kinases ,SEED quality ,PLANT-pathogen relationships ,PLANT metabolites ,TRANSCRIPTION factors ,METABOLITES ,SECONDARY metabolism - Abstract
Background: Facility cultivation is widely applied to meet the increasing demand for high yield and quality, with light intensity and light quality being major limiting factors. However, how changes in the light environment affect development and quality are unclear in garlic. When garlic seedlings are grown, they can also be exposed to blanching culture conditions of darkness or low-light intensity to ameliorate their appearance and modify their bioactive compounds and flavor. Results: In this study, we determined the quality and transcriptomes of 14-day-old garlic and blanched garlic seedlings (green seedlings and blanched seedlings) to explore the mechanisms by which seedlings integrate light signals. The findings revealed that blanched garlic seedlings were taller and heavier in fresh weight compared to green garlic seedlings. In addition, the contents of allicin, cellulose, and soluble sugars were higher in the green seedlings. We also identified 3,872 differentially expressed genes between green and blanched garlic seedlings. The Kyoto Encyclopedia of Genes and Genomes analysis suggested enrichment for plant-pathogen interactions, phytohormone signaling, mitogen-activated protein kinase signaling, and other metabolic processes. In functional annotations, pathways related to the growth and formation of the main compounds included phytohormone signaling, cell wall metabolism, allicin biosynthesis, secondary metabolism and MAPK signaling. Accordingly, we identified multiple types of transcription factor genes involved in plant-pathogen interactions, plant phytohormone signaling, and biosynthesis of secondary metabolites among the differentially expressed genes between green and blanched garlic seedlings. Conclusions: Blanching culture is one facility cultivation mode that promotes chlorophyll degradation, thus changing the outward appearance of crops, and improves their flavor. The large number of DEGs identified confirmed the difference of the regulatory machinery under two culture system. This study increases our understanding of the regulatory network integrating light and darkness signals in garlic seedlings and provides a useful resource for the genetic manipulation and cultivation of blanched garlic seedlings. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
31. The effect of diet on melanin pigmentation in animals.
- Author
-
Britton, Sarah and Davidowitz, Goggy
- Subjects
MELANINS ,DIET ,ANIMAL pigments ,MELANOGENESIS ,FATTY acids - Abstract
Melanin, including both eu‐ and pheomelanin forms, is the most common pigment type in animals and plays numerous adaptive roles. However, the effect of diet on melanin pigmentation is not well reviewed or synthesized. Understanding how diet influences melanin may lead to valuable insights such as explaining intraspecific variation or explaining when melanin‐based traits are plastic or condition dependent versus when they are prioritized or canalized.In order to assess the state of the literature and the current understanding of the effects of diet on melanin pigmentation we conducted a systematic literature search. We use the search results to highlight common patterns across animals. In particular we focus on three questions: Which dietary components can influence melanin? Which aspects of melanin‐based traits are influenced by diet? What factors can mediate the influence of diet on melanin?The effect of diet on melanin is complex and multifaceted. Diet itself can vary in a number of ways including diet quantity, protein content, fatty acid content and amount of metals and other micronutrients. We discuss the mechanisms by which these components influence melanin pigmentation.Diet can influence the size, darkness and colour of melanin‐based traits. Often, diet influences one of these aspects but not another, which may reflect the processes of melanin synthesis and distribution.Factors that mediate whether melanin pigmentation responds to dietary variation include the type of trait, life stage, sex and environmental stress. Methodology (e.g. degree of manipulation relative to natural conditions) can also influence results. These nuances should be considered when developing hypotheses about the effects of diet on melanin pigmentation.We conclude with important areas for future research, including the proximate mechanisms connecting diet and melanin, how diet affects internal melanin, how diet mediates costs of melanin pigmentation and how diet affects the evolution of melanin‐based traits. Overall, diet has important and complex effects on melanin and likely plays an important role in the ecology and evolution of melanin pigmentation. Read the free Plain Language Summary for this article on the Journal blog. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
32. Stay or flee? Hit-and-run accidents, darkness and probability of punishment.
- Author
-
Castriota, Stefano and Tonin, Mirco
- Subjects
DAYLIGHT saving ,ECONOMIC crime ,POLICE reports ,TRAFFIC accidents ,PROBABILITY theory ,CRIME - Abstract
Empirical studies on the economic theory of crime have extensively analyzed the importance of the probability of punishment with regard to premeditated criminal activities. Unplanned crimes also occur, however, and this paper will focus on a very serious and widespread example: the hit-and-run road accident. Using police records for every road accident with injuries or mortalities that took place in Italy in the period 1996–2016, we rely on changes in daylight, both when switching between daylight saving time and winter time and across seasons, as an exogenous source of variation affecting the probability of apprehension and find that the likelihood of hit-and-run conditional on an accident taking place increases by around 20% with darkness. Our results suggest that policies increasing the likelihood of apprehension could be effective in reducing hit-and-run. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
33. Use of nature in a multi‐family therapy for Chinese families of adolescents with attention deficit hyperactivity disorder: A photo‐elicitation study.
- Author
-
Lo, Julia Wing Ka and Ma, Joyce Lai Chong
- Subjects
FAMILY psychotherapy ,SOCIAL participation ,FOCUS groups ,INTERVIEWING ,ATTENTION-deficit hyperactivity disorder ,SELF-efficacy ,PHOTOGRAPHY ,RESEARCH funding ,DESCRIPTIVE statistics ,NATURE ,DATA analysis software - Abstract
This article reports the therapeutic resources in the natural outdoors that were conducive to the therapeutic process in a multi‐family therapy (MFT) for enhancing the self‐efficacy and collective family efficacy of Chinese families of adolescents with attention deficit hyperactivity disorder (ADHD) in Hong Kong. Photo‐elicited interviews with adolescents with ADHD and parent focus groups were employed to explore the participatory experiences of the families. A total of thirteen Chinese families of adolescents (aged 11–15 years) with ADHD participated in this study (fourteen adolescents with ADHD, eight fathers and ten mothers). The present study explored the potential therapeutic resources in the natural outdoors, namely a change in the group environment, spaciousness and darkness. The use of the natural outdoors in MFT proved to be a strategy useful for creating a naturalistic group setting within which family participants can more easily enact changes. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
34. Metafísica de la negrura. Schopenhauer, Mainländer y Nietzsche en la literatura de Thomas Ligotti.
- Author
-
Villalobos Manjarrez, Alberto
- Subjects
FANTASY literature ,GERMAN philosophy ,FICTION ,PHILOSOPHICAL literature ,METAPHYSICS ,PESSIMISM ,FATE & fatalism ,ATONEMENT - Abstract
Copyright of Revista de Filosofía (0185-3481) is the property of Universidad Iberoamericana Cuidad de Mexico and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
35. NOTHING TO SEE? PAYING ATTENTION IN THE DARK ENVIRONMENT.
- Author
-
Tainio, Matti
- Subjects
AESTHETIC experience ,SENSORY deprivation ,VISUAL perception ,OLD growth forests - Abstract
A cloudy November evening deep in an old forest. It is really dark, and I try to observe my environment. I discern the difference between the treetops and the dark sky and the snow-covered ground. Everything else is formless. My vision is quite useless, and the other senses are weak in these circumstances. Only the background hum is audible and most aromas are erased by the freezing temperature. In a winter outfit, all I can feel is the moving air on my face. Yet, this is not sensory deprivation, there are things to observe. What is it possible to discern when the visual stimulus is minimized? This article focuses on the aesthetic experience of darkness by analyzing a visit to a deep natural darkness and attempts to connect this distinct case to aesthetic theory. The emphasis is on the descriptive analysis of the challenges of seeing in the darkness. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
36. LE MIRACLE INEXPLICABLE DE LA NUIT1 »: Un aspect de l'imaginaire surréaliste.
- Author
-
Novaković, Jelena
- Abstract
Copyright of Philological Review (00151807) is the property of University of Belgrade, Faculty of Philology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
37. THE PHILOSOPHY OF LIFE AND DEATH, LIGHT AND DARKNESS, IN IRANIAN LITERATURE AND ARCHITECTURE.
- Author
-
RISMANIAN, MEHDI
- Subjects
HUMAN beings ,LITERATURE ,DEFINITIONS ,IRANIANS - Abstract
Copyright of Journal of Teleological Science is the property of Telos Publicacoes e Servicos Ltda and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
38. AMBIGUITATE ȘI EXPUNERE: ÎNTUNERICUL CA MATERIAL ÎN ARHITECTURA VIZIONARĂ.
- Author
-
AMOS, Bar-Eli
- Subjects
VISIONARY architecture ,CONCEPTS ,DYSTOPIAS ,LIGHT & darkness (Aesthetics) ,CREATIVE ability - Abstract
Copyright of Argument (2067-4252) is the property of Universitatea de Arhitectura si Urbanism "Ion Mincu" Bucuresti and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2023
- Full Text
- View/download PDF
39. LA OSCURIDAD Y EL ORÁCULO DE TROFONIO EN LEBADEA.
- Author
-
GORDILLO HERVÁS, Rocío
- Published
- 2023
- Full Text
- View/download PDF
40. DAY AND NIGHT, LIGHT AND DARKNESS IN THE BACCHAE OF EURIPIDES.
- Author
-
FRIEDRICH, ENNO
- Subjects
RELIGIOUS psychology ,SCHOLARLY method ,MYSTERY religions ,VISION ,MYTHOLOGY ,GREEK tragedy - Published
- 2023
- Full Text
- View/download PDF
41. COP1 Mediates Dark-Induced Stomatal Closure by Suppressing FT , TSF and SOC1 Expression to Promote NO Accumulation in Arabidopsis Guard Cells.
- Author
-
An, Yu-Yan, Li, Jing, Feng, Yu-Xin, Sun, Zhi-Mao, Li, Zhong-Qi, Wang, Xiao-Ting, Zhang, Mei-Xiang, and He, Jun-Min
- Subjects
STOMATA ,UBIQUITIN ligases ,ARABIDOPSIS ,NITRIC oxide - Abstract
RING-finger-type ubiquitin E3 ligase Constitutively Photomorphogenic 1 (COP1) and floral integrators such as FLOWERING LOCUS T (FT), TWIN SISTER OF FT (TSF) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (SOC1) have been identified as regulators of stomatal movement. However, little is known about their roles and relationship in dark-induced stomatal closure. Here, we demonstrated that COP1 is required for dark-induced stomatal closure using cop1 mutant. The cop1 mutant closed stomata in response to exogenous nitric oxide (NO) but not hydrogen peroxide (H
2 O2 ), and H2 O2 but not NO accumulated in cop1 in darkness, further indicating that COP1 acts downstream of H2 O2 and upstream of NO in dark-induced stomatal closure. Expression of FT, TSF and SOC1 in wild-type (WT) plants decreased significantly with dark duration time, but this process was blocked in cop1. Furthermore, ft, tsf, and soc1 mutants accumulated NO and closed stomata faster than WT plants in response to darkness. Altogether, our results indicate that COP1 transduces H2 O2 signaling, promotes NO accumulation in guard cells by suppressing FT, TSF and SOC1 expression, and consequently leads to stomatal closure in darkness. These findings add new insights into the mechanisms of dark-induced stomatal closure. [ABSTRACT FROM AUTHOR]- Published
- 2022
- Full Text
- View/download PDF
42. Differential responses of the seed germination of three functional groups to low temperature and darkness in a typical steppe, Northern China.
- Author
-
Mengzhou Liu, Ning Qiao, Bing Zhang, Fengying Liu, Yuan Miao, Ji Chen, Yanfeng Sun, Peng Wang, and Dong Wang
- Subjects
GERMINATION ,LOW temperatures ,FUNCTIONAL groups ,PLANT anatomy ,SOIL temperature ,STEPPES ,PERENNIALS - Abstract
Seed germination is a key stage in the life history of plants, which has a crucial effect on plant community structure. Climate change has substantially altered the surface soil temperature and light availability, which can affect seed germination. However, whether the seed germination of different functional groups is affected by the interactions of light and temperature remains unclear. Under laboratory conditions, we examined the effects of low temperature and darkness, as well as their interaction, on the seed germination of 16 species belonging to three plant functional groups (annual and biennials, perennial grasses, and perennial forbs) in a typical steppe, Northern China. We found that low temperature had a significant negative effect on seed germination of all species. Low temperature significantly decreased the final germination percentage and germinative force of the three plant functional groups, and the germination duration of perennial grasses. Darkness significantly decreased the germinative force of perennial forbs and total seeds, and the germination duration of perennial grasses. The interactive effects of light and temperature on the seed final germination percentage and germinative force of perennial grass indicated that darkness strengthened the inhibitory effect of low temperature on the seed germination of the grass functional group. Our study indicate that the seed germination of different plant functional groups varied greatly in response to changing environmental conditions. Our results suggest that future climate change could alter the regeneration and species composition of plant communities through changing seed germination. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
43. Solanum tuberosum Microtuber Development under Darkness Unveiled through RNAseq Transcriptomic Analysis.
- Author
-
Valencia-Lozano, Eliana, Herrera-Isidrón, Lisset, Flores-López, Jorge Abraham, Recoder-Meléndez, Osiel Salvador, Barraza, Aarón, and Cabrera-Ponce, José Luis
- Subjects
RIBOSOMAL proteins ,RNA sequencing ,TRANSCRIPTION factors ,TRANSCRIPTOMES ,POTATO quality - Abstract
Potato microtuber (MT) development through in vitro techniques are ideal propagules for producing high quality potato plants. MT formation is influenced by several factors, i.e., photoperiod, sucrose, hormones, and osmotic stress. We have previously developed a protocol of MT induction in medium with sucrose (8% w/v), gelrite (6g/L), and 2iP as cytokinin under darkness. To understand the molecular mechanisms involved, we performed a transcriptome-wide analysis. Here we show that 1715 up- and 1624 down-regulated genes were involved in this biological process. Through the protein–protein interaction (PPI) network analyses performed in the STRING database (v11.5), we found 299 genes tightly associated in 14 clusters. Two major clusters of up-regulated proteins fundamental for life growth and development were found: 29 ribosomal proteins (RPs) interacting with 6 PEBP family members and 117 cell cycle (CC) proteins. The PPI network of up-regulated transcription factors (TFs) revealed that at least six TFs–MYB43, TSF, bZIP27, bZIP43, HAT4 and WOX9–may be involved during MTs development. The PPI network of down-regulated genes revealed a cluster of 83 proteins involved in light and photosynthesis, 110 in response to hormone, 74 in hormone mediate signaling pathway and 22 related to aging. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
44. الرمزية ف شعر نازك الملائكة: دراسة تحليلي ة.
- Author
-
نجية حسين محمد ال and هيرو عبد الكريم م
- Subjects
EMOTIONAL experience ,POETRY (Literary form) ,POETS ,SYMBOLISM ,SIGNS & symbols ,ARABIC literature ,TRAGEDY (Trauma) - Abstract
Copyright of Journal of Linguistic & Literary Studies is the property of International Islamic University Malaysia, Department of Arabic Language & Literature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2022
45. transcription factor SlWRKY37 positively regulates jasmonic acid- and dark-induced leaf senescence in tomato.
- Author
-
Wang, Zhirong, Gao, Ming, Li, Yafei, Zhang, Jialong, Su, Hui, Cao, Meng, Liu, Ziji, Zhang, Xichun, Zhao, Bing, Guo, Yang-Dong, and Zhang, Na
- Subjects
TRANSCRIPTION factors ,JASMONIC acid ,CHLOROPLAST DNA ,FOLIAGE plants ,JASMONATE ,TOMATOES - Abstract
Initiation and progression of leaf senescence are triggered by various environmental stressors and phytohormones. Jasmonic acid (JA) and darkness accelerate leaf senescence in plants. However, the mechanisms that integrate these two factors to initiate and regulate leaf senescence have not been identified. Here, we report a transcriptional regulatory module centred on a novel tomato WRKY transcription factor, SlWRKY37, responsible for both JA- and dark-induced leaf senescence. The expression of SlWRKY37 , together with SlMYC2 , encoding a master transcription factor in JA signalling, was significantly induced by both methyl jasmonate (MeJA) and dark treatments. SlMYC2 binds directly to the promoter of SlWRKY37 to activate its expression. Knock out of SlWRKY37 inhibited JA- and dark-induced leaf senescence. Transcriptome analysis and biochemical experiments revealed SlWRKY53 and SlSGR1 (S. lycopersicum senescence-inducible chloroplast stay-green protein 1) as direct transcriptional targets of SlWRKY37 to control leaf senescence. Moreover, SlWRKY37 interacted with a VQ motif-containing protein SlVQ7, and the interaction improved the stability of SlWRKY37 and the transcriptional activation of downstream target genes. Our results reveal the physiological and molecular functions of SlWRKY37 in leaf senescence, and offer a target gene to retard leaf yellowing by reducing sensitivity to external senescence signals, such as JA and darkness. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
46. Influence of Lighting and Laser Irradiation on the Germination of Caper Seeds.
- Author
-
Foschi, María Laura, Juan, Mariano, Pascual, Bernardo, and Pascual-Seva, Nuria
- Subjects
GERMINATION ,GIBBERELLIC acid ,LASERS ,SEED dormancy ,IRRADIATION ,LIGHT emitting diodes - Abstract
Caper seeds present difficulties in their germination, which has been studied by several research teams. It is known that light can release dormancy in some seeds, but its effect on caper seed germination has not yet been deeply studied. The main aim of this study was to analyze the response of caper seeds germination to light exposure. The study analyzed the germination response of seeds to lighting with different wavelengths (white, red, blue, red + blue and darkness) and to the He-Ne laser light, using both dry seeds and seeds that had been previously soaked in water. Overall, it could be stated that caper seeds are insensitive to light during the germination process. Thus, germination could be carried out in lightness or darkness, so germination in nurseries could be carried out in the darkness, leading to substantial energy savings. Caper seed irradiation with a He-Ne laser during short exposure times improved the germination percentage for the seeds previously soaked in water, germinating all viable seeds. However, applying a solution of gibberellic acid was always required in all the cases studied. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
47. Injury severity analysis of electric bike crashes in Changsha, Hunan Province: taking different lighting conditions into consideration.
- Author
-
Lin Hu, Xiaotong Wu, Xinting Hu, Fang Wang, and Ning Wu
- Subjects
MOTORCYCLES ,PROBIT analysis ,GEOGRAPHIC information systems ,ACCIDENTS - Published
- 2022
- Full Text
- View/download PDF
48. Temporal dynamics of cholinergic activity in the septo-hippocampal system.
- Author
-
Kopsick, Jeffrey D., Hartzell, Kyle, Lazaro, Hallie, Nambiar, Pranav, Hasselmo, Michael E., and Dannenberg, Holger
- Subjects
HIPPOCAMPUS (Brain) ,RUNNING speed ,ANIMAL mechanics ,NEURAL codes ,COGNITIVE ability ,SEPTUM (Brain) - Abstract
Cholinergic projection neurons in the medial septum and diagonal band of Broca are the major source of cholinergic modulation of hippocampal circuit functions that support neural coding of location and running speed. Changes in cholinergic modulation are known to correlate with changes in brain states, cognitive functions, and behavior. However, whether cholinergic modulation can change fast enough to serve as a potential speed signal in hippocampal and parahippocampal cortices and whether the temporal dynamics in such a signal depend on the presence of visual cues remain unknown. In this study, we use a fiber-photometric approach to quantify the temporal dynamics of cholinergic activity in freely moving mice as a function of the animal's movement speed and visual cues. We show that the population activity of cholinergic neurons in the medial septum and diagonal band of Broca changes fast enough to be aligned well with changes in the animal's running speed and is strongly and linearly correlated to the logarithm of the animal's running speed. Intriguingly, the cholinergic modulation remains strongly and linearly correlated to the speed of the animal's neck movements during periods of stationary activity. Furthermore, we show that cholinergic modulation is unaltered during darkness. Lastly, we identify rearing, a stereotypic behavior where the mouse stands on its hindlimbs to scan the environment from an elevated perspective, is associated with higher cholinergic activity than expected from neck movements on the horizontal plane alone. Taken together, these data show that temporal dynamics in the cholinergic modulation of hippocampal circuits are fast enough to provide a potential running speed signal in real-time. Moreover, the data show that cholinergic modulation is primarily a function of the logarithm of the animal's movement speed, both during locomotion and during stationary activity, with no significant interaction with visual inputs. These data advance our understanding of temporal dynamics in cholinergic modulation of hippocampal circuits and their functions in the context of neural coding of location and running speed. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
49. Origen's Understanding of Genesis 1:1–5.
- Author
-
Heine, Ronald
- Subjects
DEVIL ,HEAVEN ,WISDOM ,GOD ,CREATION - Abstract
This essay addresses two key questions that Origen raised about the creation story: the nature of the heaven and earth referred to in Gen 1:1, and the identity of the abyss and the darkness mentioned in Gen 1:2. It argues that he understood the heaven and earth of Gen 1:1 to refer to an immaterial plan for creation conceived and held in God's Wisdom, and that the abyss and darkness refer to the realm of Satan and the demonic elements. It suggests that Origen's understanding, at least about the second set of questions, had shifted in his later thinking from what it was earlier. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
50. Long-Term Vitamin D Deficiency Results in the Inhibition of Cell Proliferation and Alteration of Multiple Gastric Epithelial Cell Lineages in Mice.
- Author
-
Sirajudeen, Shaima, Shah, Iltaf, Ayoub, Mohammed Akli, Karam, Sherif M., and Al Menhali, Asma
- Subjects
VITAMIN D deficiency ,EPITHELIAL cells ,CELL proliferation ,GASTRIC mucosa ,MALNUTRITION ,MICE - Abstract
Over one billion people globally are vitamin D (VD) deficient. Studies on the biological roles of VD are numerous but very little on the stomach. This project aims to understand how gastric homeostasis is affected by VD deficiency caused by prolonged exposure to darkness alone or combined with VD deficient diet. Three groups of C57/BL6 mice were subjected to different light exposure conditions and diets for 12 months (n = 8–12/group): control—12 h/12 h light/dark SDL (Standard Diet/Light), 24 h dark SDD (Standard Diet/Dark), and 24 h dark VDD (VD deficient diet/Dark). Stomach samples were collected for different multi-label lectin-/immuno-histochemical and qRT-PCR analyses, and the serum for LC-MS-MS. We found that the membrane VD receptor is expressed widely in the stomach when compared to nuclear VD receptors. Compared to SDL, VDD mice developed mucous cell expansion with increased mucins-mRNA (3.27 ± 2.73 (p < 0.05)) increased apoptotic cells, 15 ± 7 (p ≤ 0.001)); decreased cell proliferation, 4 ± 4 (p < 0.05)) and decreased acid secretion 33 ± 2 μEq/kg (p ≤ 0.0001)). Interestingly, mice exposed to full darkness developed mild VD deficiency with higher VD epimer levels: 11.9 ± 2.08 ng/mL (p ≤ 0.0001)), expansion in zymogenic cell number (16 ± 3 (p ≤ 0.01)), and a reduction in acid secretion (18 ± 2 μEq/kg (p ≤ 0.0001)). In conclusion, changes in light exposure or VD levels have serious physiological effects on the gastric mucosa, which should be considered during the management of gastric disorders. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.