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The article is dedicated to the study of certain aspects of the constitution development cyclicity and the factors that influence such cyclicity. The author emphasizes that the state, society and the constitution are in constant interconnection with each other, and therefore formation of cyclicity of constitution development is inseparable from other legal phenomena. It was found that cyclicity is characterized by stability (invariability of the stages (phases) forming cyclicity of constitution development) and survivability (dynamics that forms the constitution’s ability to adapt to new challenges and tasks arising in society). The author draws attention to both actual and legal constitutions. It was established that: a) actual and legal constitutions are indeed independent juridical phenomena, however, they interact with each other and that is manifested in the aspect that de facto relations which influence emergence of an actual constitution contribute to changes of a legal constitution; b) the factors under which de facto relations are formed in the state serve as prerequisites for beginning, development or termination of the stages of adoption, reform and invalidation of the constitution. The author specifies that, since the constitution functions within the political organization of society, all factors relating to cyclicity of its development in relation to the state can be divided into internal factors arising in the state (social, cultural, economic, political, etc.) and foreign policy factors (adoption of international acts, unilateral acts of other states, etc.) which influence determination of a political course and orientation of the state and contribute to dynamism of the constitution’s life cycle. The author gives an example of an internal (political) factor influencing cyclicity of the constitution development-a choice of a new vector of Ukraine’s policy towards membership in the European Union and the North Atlantic Treaty Organization that resulted in introduction of amendments to the Constitution of Ukraine in 2019. The other example given is associated with a foreign policy factor-constitutional changes in Germany in 2022 aimed at increasing the budget expenditures of the state for its army’s defense capability because of the full-scale invasion of Ukraine. [ABSTRACT FROM AUTHOR]

We give a complete description of the linear dynamics of multiplication M m and composition operators C φ on the space Hol (D) of all holomorphic maps on the unit disc. We show that M m is never supercyclic, and cyclic if and only if the map m is injective. For composition operators, we prove that if φ has a fixed point in D , then C φ is either not cyclic, or cyclic but not supercyclic on Hol (D) . On the other hand, if φ does not have any fixed point in the unit disc, then C φ is hypercyclic on Hol (D) . We provide explicit expressions of cyclic and hypercyclic vectors. Finally, we make some observations on weighted composition operators on Hol (D) . [ABSTRACT FROM AUTHOR]

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Per- and poly-fluoroalkylated substances (PFAS) are a large group of chemicals that persist both in the environment and in the body. Legacy PFAS, e.g., perfluorooctanoic acid and perfluorooctane sulfonic acid, are implicated as endocrine disruptors and reproductive and developmental toxicants in epidemiological and animal model studies. This review describes female reproductive outcomes of reported studies and includes where associative relationships between PFAS exposures and female reproductive outcomes have been observed as well as where those are absent. In animal models, studies in which PFAS are documented to cause toxicity and where effects are lacking are described. Discrepancies exist in both human and animal studies and are likely attributable to human geographical contamination, developmental status, duration of exposure, and PFAS chemical identity. Similarly, in animal investigations, the model used, exposure paradigm, and developmental status of the female are important and vary widely in documented studies. Taken together, support for PFAS as reproductive and developmental toxicants exists, although the disparity in study conditions and human exposures contribute to the variation in effects noted. [ABSTRACT FROM AUTHOR]

Introduction: Pubertal attainment is critical to reproductive longevity in heifers. Previously, four heifer pubertal classifications were identified according to attainment of blood plasma progesterone concentrations > 1 ng/ml: 1) Early; 2) Typical; 3) Start-Stop; and 4) Non-Cycling. Early and Typical heifers initiated and maintained cyclicity, Start-Stop started and then stopped cyclicity and Non-Cycling never initiated cyclicity. Start-Stop heifers segregated into Start-Stop-Discontinuous (SSD) or Start-Stop-Start (SSS), with SSD having similar phenotypes to Non-Cycling and SSS to Typical heifers. We hypothesized that these pubertal classifications are heritable, and loci associated with pubertal classifications could be identified by genome wide association studies (GWAS). Methods: Heifers (n = 532; 2017 - 2022) genotyped on the Illumina Bovine SNP50 v2 or GGP Bovine 100K SNP panels were used for variant component estimation and GWAS. Heritability was estimated using a univariate Bayesian animal model. Results: When considering pubertal classifications: Early, Typical, SSS, SSD, and Non-Cycling, pubertal class was moderately heritable (0.38 ± 0.08). However, when heifers who initiated and maintained cyclicity were compared to those that did not cycle (Early+Typical vs. SSD+Non-Cycling) heritability was greater (0.59 ± 0.19). A GWAS did not identify single nucleotide polymorphisms (SNPs) significantly associated with pubertal classifications, indicating puberty is a polygenic trait. A candidate gene approach was used, which fitted SNPs within or nearby a set of 71 candidate genes previously associated with puberty, PCOS, cyclicity, regulation of hormone secretion, signal transduction, and methylation. Eight genes/regions were associated with pubertal classifications, and twentytwo genes/regions were associated with whether puberty was attained during the trial. Additionally, whole genome sequencing (WGS) data on 33 heifers were aligned to the reference genome (ARS-UCD1.2) to identify variants in FSHR, a gene critical to pubertal attainment. Fisher's exact test determined if FSHR SNPs segregated by pubertal classification. Two FSHR SNPs that were not on the bovine SNP panel were selected for additional genotyping and analysis, and one was associated with pubertal classifications and whether they cycled during the trial. Discussion: In summary, these pubertal classifications are moderately to highly heritable and polygenic. Consequently, genomic tools to inform selection/management of replacement heifers would be useful if informed by SNPs associated with cyclicity and early pubertal attainment. [ABSTRACT FROM AUTHOR]

We study canard cycles and their cyclicity of a fast–slow Leslie–Gower predator–prey system with Allee effect. More specifically, we find necessary and sufficient conditions of the exact number (zero, one or two) of positive equilibria of the slow–fast system and its location (or their locations), and then we further completely determine its (or their) dynamics under explicit conditions. Besides, by geometric singular perturbation theory and the slow–fast normal form, we find explicit sufficient conditions to characterize singular Hopf bifurcation and canard explosion of the system. Additionally, the cyclicity of canard cycles is completely solved, and of particular interest is that we show the existence and uniqueness of a canard cycle, whose cyclicity is at most two, under corresponding precise explicit conditions. [ABSTRACT FROM AUTHOR]

Purpose: This paper examines the impact of global crises, including the Global Financial Crisis (GFC), the COVID-19 pandemic, and the subsequent inflation crisis, on the fluctuations of the Real Effective Exchange Rate (REER). The cyclicality of REER has been examined as influenced by economic shocks, highlighting how pandemic-induced economic disruptions have reshaped REER dynamics differently from the more financially triggered fluctuations of the Global Financial Crisis. Design/methodology/approach: The methodology employs a comparative spectral analysis approach, utilizing time-series data to track REER movements across various countries. Findings: The findings indicate that the GFC and the COVID-19 pandemic led to shortening periods of cyclicality. Moreover, there has been a noticeable improvement in the synchronization of REER movements post-GFC, suggesting that economies may converge in their responses to global economic shocks. This convergence implies a potential stabilization of exchange rate movements in the face of future crises, underlining the importance of coordinated monetary policies. Research limitations/implications: To model the REER index, one can use also classical analytical methods such as VAR models, where macroeconomic factors can serve as variables. In spectral analysis itself, other filters like the Hodrick-Prescott filter or applying a spectral window can be used. Practical implications: The conducted study implies an improvement in synchronization among financial systems, with this knowledge, more appropriate and rational monetary decisions can be made, and private entities can better employ hedging strategies against currency exchange rate fluctuations. The study also aids in identifying inflationary pressures and the impact of the global financial system on the inflation index in individual countries. Originality/value: The methods used in the article represent an innovative approach to modeling the REER index, providing new insights into the cyclicality of the index and the shortening periods of its occurrence. The article is addressed both to researchers in this field and to individuals involved with the monetary system and those working in the financial industry. [ABSTRACT FROM AUTHOR]

Copyright of Central Asian Journal of Art Studies is the property of Central Asian Journal of Art Studies 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.)

The precise nature of Ā-dependencies that terminate in a pronoun has been a long-standing subject of cross-linguistic research. Traditionally, it has been assumed that there are two derivational strategies to form resumptive Ā-dependencies: movement and base generation. Island configurations have played a crucial role in determining which derivational strategy is employed in a given language, as islands effects are expected to arise from dependencies created by movement but not by base generation. The body of cross-linguistic research on resumption has shown that the situation is more complicated once other diagnostics are taken into account, as languages can have mixed resumption profiles. In this paper, we discuss resumption in Ā-dependencies in Akan, a Kwa language spoken in Ghana, and illustrate that, despite their general insensitivity to islands, resumptive dependencies also show many classic hallmarks of movement. We situate these findings in the broader context of a general understanding of resumption cross-linguistically and discuss how the conflicting diagnostics might be reconciled with a movement-based analysis. [ABSTRACT FROM AUTHOR]

Yao and Huzak [2022] proved that the cyclicity of canard cycles in a singularly perturbed Leslie–Gower predator–prey model with prey harvesting is at most two in a region of parameters. In this paper, we further show that there exists only one canard cycle with cyclicity at most two under explicit parameters conditions. [ABSTRACT FROM AUTHOR]

We present a Monte Carlo model of Einstein–Podolsky–Rosen experiments that may be implemented on two independent computers and resembles the measurements of the Clauser–Aspect–Zeilinger-type which are performed in two distant stations S A and S B . Our computer model is local deterministic because we show that a theorist in station S B is able to conceive the products of the measurement outcomes of both stations, conditional to any possible equipment configuration in station S A . We show that the Monte Carlo model violates Bell-type inequalities and approaches the results of quantum theory for certain relationships between the number of measurements performed and the number of possible different physical properties of the entangled photon pairs. These relationships are clearly linked to Vorob'ev cyclicities, which always enforce Bell-type inequalities. The realization of this cyclicity depends, however, on combinatorial symmetry considerations that, in turn, depend on the mathematical properties of Einstein's elements of physical reality. Because these mathematical properties have never been investigated and, therefore, may be free to be chosen in the models for all published experiments, Einstein's physics does not contradict the experimental findings, instantaneous influences at a distance are put into question and the paradox of Einstein–Podolsky–Rosen and Bell is, thus, resolved. [ABSTRACT FROM AUTHOR]

The study of a core of borehole 8 drilled in the town of Maloyaroslavets to a depth of 94 m has made it possible to obtain the biostratigraphic characteristics of the Tarusian and Protvian regional substages of the Serpukhovian Stage and lower part of the Vereian Regional Substage of the Moscovian Stage based on foraminifers and conodonts. The Tarusian Regional Substage is attributed to the Neoarchaediscus postrugosus Zone. The Eostaffellina paraprotvae Zone has been established in the Protvian Regional Substage, and a deep-water conodont assemblage of the Gnathodus bollandensis Zone has been found in its upper part (6.8–12.0 m above the base). The generalization of all data on conodonts of the Protvian Regional Substage of the Moscow Syneclise has shown that it contains at least four transgressive–regressive cyclites. The type locality of the species Eostaffellina protvaeensis has been specified in the Tetyuevo section in the Rzhev Volga region. A rich assemblage of conodonts from the Vereian Alyutovo Formation of the Moscovian Stage belongs to the Declinognathodus donetzianus Zone. [ABSTRACT FROM AUTHOR]

Morphophonological derivations are often simultaneously isomorphic to both surface morphotactics, cyclic phonology, and to abstract morphosemantic structure. On the surface, passive verbs in Armenian violate this isomorphism. Verbs consist of a bound stem plus suffixes. Passive stems are pre-consonantal and seem morphologically derived from roots, but their phonological structure is only predictable from the pre-vocalic stem of active verbs. I capture this predictability by combining cyclicity with affix truncation (Aronoff 1976). The interaction between cyclicity and affix deletion causes the opaque overapplication of phonological rules in passives, because such rules applied cyclically early in the active verb. This approach is a cyclic alternative to using Output-Output constraints. However, our cyclic analysis likewise predicts *ABA effects in the morphosemantics of passives, among other non-phonological dependencies. Thus, our analysis creates a cyclic dependency between two bound stems that is visible across grammatical modules. [ABSTRACT FROM AUTHOR]

Replacive overwriting by morphological tone has been used as major evidence for cyclic construction approaches to phonology (Hyman 2013 , Inkelas 2018 , Rolle 2018). In this article, I show that this argument is unwarranted: tonal overwriting can be derived by simple concatenation of tonal morphemes, general phonological constraints, and minimal access to morphological information—in Autosegmental Colored Containment Theory. In detailed analyses, I demonstrate that neither morpheme-specific phonology nor cyclicity is necessary to capture tonal overwriting, whereas cyclic analyses actually make wrong predictions on possible overwriting patterns. [ABSTRACT FROM AUTHOR]

Copyright of Contratexto is the property of Contratexto 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.)

Microfacies studies were carried out on the Middle Miocene Marmarica Formation exposed at the Gabal Western Bahi El-Din and Gabal El-Najdeen, the Siwa Oasis, northwestern Desert (Egypt). It was distinguished into the lower, middle, and upper members. Eleven microfacies types were recognized, which include skeletal lime-mudstone, dolomitic lime-mudstone, intraclastic wackestone, bryozoan wackestone, foraminiferal wackestone, foraminiferal bryozoan packstone, glauconitic molluscan packstone, molluscan intraclastic packstone, pelletal peloidal skeletal packstone, dolostones, and claystone microfacies. This formation includes several types of emergence- meter-scale cycles (shallowing-upward). Field observations and petrographic analyses revealed that these cycles consist of pure carbonates and mixed siliciclastic carbonates. These cycles consist of four types of gradual cycles and six types of non-gradual cycles. The gradual emergence cycles indicate a balance between the rate of subsidence, sea level oscillations, and sedimentation rate. The non-gradual cycles indicate an irregular balance between sedimentation rate and subsidence rate. The non-gradual cycles denote high-frequency sea level variation and/or short-term sea level oscillations, which are associated with high carbonate formation. The depositional environments of the Marmarica Formation are restricted to lagoonal at the base, followed upward to open marine conditions. Both environments most probably characterize the platform setting. [ABSTRACT FROM AUTHOR]

The main goal of the investigation was to reveal the lateral and vertical regularities of element distribution in the elementary landscape-geochemical system (ELGS) type: summit-slope-closing depression. We used an isotope 137Cs as a tracer of migration of chemical elements in soil and vegetation cover. The study was performed in a test site characterizing undisturbed forest landscapes in the Russian zone of the Chernobyl accident. Investigated ELGS was 16-m long with a relative height difference of 1.5 m. Field measurements of 137Cs activity was performed with a 1-meter step by the modified portable gamma-spectrometer Violinist-III (USA). Cs-137 content in moss and soil cores sampled with the same lateral step was determined in the laboratory using Canberra (USA, HPGe detector). The upper soil layer 8-cm thick contained from 70 to 96% of 137Cs, and 89–99% of the total inventory was fixed in the top 20-cm layer. Cs-137 activity in both the soil and moss cover demonstrated a cyclic type of variability, which was described and modeled using Fourier analysis. Correlation between the actual and modeled activity values (r0.01 = 0.868) showed that three main harmonics are sufficient for representative modeling of the observed cycles. We infer that the revealed patterns are characteristic for most of the chemical elements and may be useful for practical purposes. [ABSTRACT FROM AUTHOR]

Copyright of Acta Sedimentologica Sinica is the property of Acta Sedimentologica Sinica Editorial Office 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.)

Gases desorbed by the vacuum method from the tree rings of discs of deciduous trees are measured. The content of residual gases vacuum-desorbed from tree rings is analyzed with an optoacoustic gas analyzer with a tunable CO2 laser. The chronologies of residual CO2 and (CO2 + H2O) of some deciduous trees growing near the city of Tomsk (Western Siberia) have been derived. All the chronologies are cyclic with pronounced 2–4-year cycles. A correlation was found between the content of gases and summer temperatures and precipitation. We believe that the annual distribution of residual gases in the discs reflects the pattern of annual release of the gases from the stems of the deciduous trees into the atmosphere. [ABSTRACT FROM AUTHOR]

The thermal load in the piston head is becoming heavy with the application of supercharging technology. This makes the piston cooling become more challenging to ensure the reliability of the piston. In this study, an oil-injection cooling process in a medium-speed V-type diesel engine is numerically investigated. The simulations are performed for the direct coupling of the piston head structure and the two-phase flow in the cooling gallery. The effect of the flow pattern on heat transfer characteristics during the whole process is discussed. The results reveal a series of the flow characteristics including thrown flow, interrupted flow, wall impingement, oil oscillating and sedimentation during the reciprocating movement of the piston and the flow characteristics become more obvious with the increase of the engine speed, but the cooling oil is more widely distributed in the oil gallery due to more intense oscillation. After multi-cycle calculations, the flow characteristics of the cooling oil and the heat transfer characteristics of the piston both have a certain periodicity. [ABSTRACT FROM AUTHOR]

The semi‐enclosed marginal Japan Sea is sensitive to global changes and responds to orbital‐scale variability. Sediment core samples from Integrated Ocean Drilling Program Site U1423 were processed for detrital grain size and semi‐quantitative mineral analysis to assess the sediment characterization and depositional environment in the Japan Sea over the last 1200 ka. The mean grain data suggest the dominance of the silt size fraction over sand and clay in the whole period, while sand content increases dramatically between 600 and 150 ka. The end‐member energy modelling of grain size data suggests that sediment deposition took place under two energy conditions over the last 1200 ka. The low‐energy conditions observed during the middle Pleistocene transition (MPT) is mainly related to the wind deposition with the sediment characteristics being moderately to poorly sorted and coarse to nearly symmetrical skewed during global cooling and enhanced East Asian Winter Monsoon (EAWM) winds in the northern Japan Sea. Post MPT, periodic fluctuations between higher and lower energy conditions are observed, and the depositional environment is controlled by the EAWM wind, and precipitation intensity, glacio‐eustatic sea‐level changes and sea‐ice volumes. During the period, detrital sediments are poorly sorted and nearly symmetrically skewed, marked by the dominance of quartz, plagioclase and k‐feldspar. The spectral analysis grain size‐related data shows the presence of 228, 41 and 23 kyr orbital paced cycles, which are also observed in the Chinese Loess Plateau's normalized quartz mean grain size. This study is the first report of 228 kyr cycles from the Pleistocene Japan Sea sediments indicate that sediment deposition in the Japan Sea is associated with ~200 kyr eccentricity cycle as in the Chinese Loess Plateau. [ABSTRACT FROM AUTHOR]

Imidacloprid a systemic neonicotinoid, mainly used for controlling insects and pests in agricultural sector. Two doses of imidacloprid (10 and 20 mg/ kg/ day) were selected based on LD50 and given through oral intubation to female rats for 60 days. Disturbed cyclicity with significant (P<0.05) decrease in the number of estrous cycle days and increased diestrous index was observed at high dose. Serial sections of ovary were studied for atretic follicles in imidacloprid treated rats. Number of healthy follicles was significantly (P<0.05) decreased with increased number of atretic follicles at high dose of imidacloprid. The histopathology of ovary also revealed more atretic follicles at high dose of imidacloprid. Decreased body weight and ovary weight in imidacloprid treated rats was dose dependent. Based on the observed effects, it can be concluded that imidacloprid produced more significant effects on female reproduction at high dose (20 mg/ kgbw/ day) as compared to low dose (10 mg/ kgbw/ day). [ABSTRACT FROM AUTHOR]

Tectonic, paleoenvironmental, and paleoclimatic unstable conditions preceding the onset of the Messinian Salinity Crisis (MSC) highly affected marine life. Changes in calcareous plankton association are overall registered in the Mediterranean. They consist of a general transition from abundant and well-diversified planktonic associations to strictly oligotypic assemblages that precede their total disappearance at the onset of evaporitic precipitation. In this work, an accurate quantitative analysis of calcareous plankton, both foraminifers and nannofossils, has been carried out in the Torrente Vaccarizzo Section of Sicily (southern Italy). The aim is to independently define a chronostratigraphic pattern of bioevents preceding the MSC in the absence of magnetostratigraphic or radiometric constraints. The fluctuating abundance of the genus Orbulina fits well with the 100 ky Eccentricity maxima, and it is successfully applied to build an astronomically calibrated age-model for the section. On this basis, all the biohorizons have been recalibrated and discussed with regard to the previous literature. Abundant influxes of selected species demonstrated to be of local significance since they are highly affected by paleoenvironmental and paleoclimatic conditions. A chronological sequence of foraminifer and nannofossil events marks the onset of the MSC with a derived age of 5.957 My, which agrees well with previous findings from other Mediterranean sections. This methodology and the new biostratigraphic events may be useful for future studies on pre-evaporitic successions of the Mediterranean. [ABSTRACT FROM AUTHOR]

Recent work has argued for derivational expansion of the search space of ɸ-probes as a result of the cyclic interaction of Merge and Agree (cyclic Agree). Empirical evidence for such effects has come from the interaction of Agree with external Merge, but these accounts make the additional predictions that such interactions should also arise from the interaction of Agree with movement. In this paper, we argue based on evidence from Hindi-Urdu that movement may feed cyclic Agree in the same way as external Merge, bearing out this key prediction. The central empirical generalizations that we argue for are that (i) A-scrambling of an object over a subject may feed agreement in certain configurations, (ii) there is nonetheless a preference for agreement with the structurally lower subject, and (iii) A ‾ -scrambling of the object never feeds agreement. We develop a cyclic-Agree analysis that provides a principled explanation of these generalizations. Crucial to this explanation are that (i) search space is dynamic and interacts with movement, (ii) there is a preference for agreement with elements c-commanded by the head that hosts the probe (first-cycle Agree), and (iii) ɸ-probes project as part of the label, but not past the immediate projection line of the head. [ABSTRACT FROM AUTHOR]

In this paper, we study the cyclicity problem with respect to the forward shift operator Sb acting on the de Branges–Rovnyak space ℋ (b) associated to a function b in the closed unit ball of H∞ and satisfying log(1− |b| ∈ L1(핋). We present a characterisation of cyclic vectors for Sb when b is a rational function which is not a finite Blaschke product. This characterisation can be derived from the description, given in [22], of invariant subspaces of Sb in this case, but we provide here an elementary proof. We also study the situation where b has the form b = (1+ I)/2, where I is a non-constant inner function such that the associated model space KI = ℋ (I) has an orthonormal basis of reproducing kernels. [ABSTRACT FROM AUTHOR]

Traditional approaches to verbal periphrasis (compound tenses) treat auxiliary verbs as lexical items that enter syntactic derivation like any other lexical item, via Selection/Merge. An alternative view is that auxiliary verbs are inserted into a previously built structure (e.g., Bach 1967 , Arregi 2000 , Embick 2000 , Cowper 2010 , Bjorkman 2011 , Arregi and Klecha 2015). Arguments for the insertion approach include auxiliaries' last-resort distribution and the fact that, in many languages, auxiliaries are not systematically associated with a given inflectional category (Bjorkman's (2011) "overflow" distribution). Here, I argue against the insertion approach. I demonstrate that the overflow pattern and last-resort distribution follow from Cyclic Selection (Pietraszko 2017)—a Merge counterpart of Cyclic Agree (Béjar and Rezac 2009). I also show that the insertion approach makes wrong predictions about compound tenses in Swahili, a language with overflow periphrasis. Under my approach, an auxiliary verb is a verbal head externally merged as a specifier of a functional head, such as T. It then undergoes m-merger with that head, instantiating an External-Merge version of Matushansky's (2006) conception of head movement. [ABSTRACT FROM AUTHOR]

The objectives of current study were to assess the prevalence and risk factors associated with postpartum anestrus in lactating dairy cows in Sylhet region, Bangladesh. A total of 420 postpartum cows of different breed and age were selected randomly from different dairy farms in studied area. Structured questionnaire was used to collect data from farm owner on prevalence and risk factors for postpartum anestrus. Observed heat within 60 days after parturition was considered as normal cyclic cows and others were considered as postpartum anestrus. The prevalence of postpartum anestrus was 36.20%. The study shows that older cows take relatively more time for ovarian resumption. Cow’s having first parity shows cyclicity within 60 days of parturition, and postpartum anestrus increases significantly with the advancement of parity. Postpartum anestrus was significantly higher (P< 0.001) in cows with poor (≤1.0) and excessive (>3) body condition scores (BCS), respectively, compared to those with moderate/optimal BCS (2– 3). The postpartum cyclicity in cows within 60 days with a history of normal placental expulsion was significantly higher than in the cows with RFM. Ovarian cyclicity was highest (75.92%) among the cows that were maintained in adequate hygienic conditions and lowest (43.51%) in a poor environment. The highest percentage (88.10%) of cows showed postpartum cyclicity with a history of short lactation length (0-150 days) and resumption of postpartum estrus cycle increases significantly with lactation length. Resumption of postpartum estrus cycles in cows takes more time with a history of minimal (<15 liters) daily milk production than the cow with medium (>15-25 liters) daily milk production. Cows get an adequate feed supply (both concentrate and green grass), which shows a positive effect on postpartum cyclicity. Pre and postpartum complications have a significant (p<0.001) effect on the postpartum cyclicity of cows. Endometritis (81.25%) followed by pyometra (75.76%) were recorded as major reproductive obstacles in ovarian resumption, whereas uterine prolapse (70.59%) followed by abortion (61.54%), milk fever (58.33%), stillbirth (58.33%) and dystocia (57.63%) were the major recorded complications in post-partum phase. The study also revealed that the non-restricted suckling period has a significant (p<0.001) negative effect on ovarian resumption. The risk factors including parity, BCS, placental expulsion, hygienic condition, lactation length, daily milk production and management system were significantly (P<0.01) influenced the postpartum cyclicity. Maintaining optimal BCS of cows, proper hygienic and good management practice, and farmer's training on management of cattle reproduction would improve the number of cows for breeding by 60 days postpartum. [ABSTRACT FROM AUTHOR]

Abstract—The idea of the vital state of a tree as a combination of long-, medium-, and short-term components (according to the duration of restoration of the skeletal axes of the crown, branching axes, and leafy shoots) is substantiated using the example of the English oak in two contrasting ecotopes. It is shown that the same-name components of the growth of the trunk's early wood can serve as indicators of the vital state. The components of the growth of late wood characterize the potential of the life condition. The long-term component of the radial growth is described by the sum of the trend and a sinusoid; the medium-term component is described by the sum of two sinusoids. The trend is driven by competition in the stand; its decrease, due to the mass drying of the oak, improved the long-term component of the vital condition and the radial growth of surviving trees. The cyclicity of radial growth in the forest steppe is explained by the influence of droughts and phyllophages. The period of fluctuations of the long-term component of growth is equal to 31–35 years for early wood in the upland oak forest and 40–44 years in the floodplain and 28–30 years for late wood in the upland and 51–58 years in the floodplain. The periods of the main and additional sinusoids of the mean time component are similar in both oak forests: 12–13 and 7–9 years for early wood and 14–16 and 9–11 years for late wood, respectively. The risk of deterioration in the vital condition of the oak increases in the years of superimposition of minima of the cycles of the long- and medium-term components of the growth of the trunk's early wood. The risk of oak drying out increases with a decrease in latewood growth to 0.5 mm, which was observed in the floodplain oak forest during the period of mass oak drying and in the upland oak forest in the early 2000s, and it is expected in the late 2020s for oak trees of medium and worse development. [ABSTRACT FROM AUTHOR]

Microbiota regulate endometrial health in cattle. It is important to know what a 'good' microbiome is, in order to understand pathogeneses of uterine disease. Given that microbial influx into the genital tract of cows at calving is unavoidable, exploring the involvement of genital tract bacteria in promoting endometrial health is warranted. The dysbiosis of endometrial microbiota is associated with benign and malign uterine diseases. The present review discusses current knowledge about the altered endometrial microbiome and the implications of this modulation on endometrial inflammation, ovarian activity, fecundation, pregnancy, and postpartum complications. Intravaginal administration of symbiotic microbes in cattle is a realistic alternative to antibiotic and hormone therapy to treat uterine disease. Genital microbial diversity can be modeled by nutrition, as the energy balance would improve the growth of specific microbial populations. It may be that probiotics that alter the endometrial microbiome could provide viable alternatives to existing therapies for uterine disease in cattle. [ABSTRACT FROM AUTHOR]

In the present work, we investigate the dynamic behavior of composition operators on Hilbert spaces of Dirichlet series. Especially, we characterize completely their cyclicity. Then it is shown that there are no hypercyclic composition operators, and given a certain class of operators whose adjoints are hypercyclic. All these indicate that there are indigent cyclic composition operators. [ABSTRACT FROM AUTHOR]

The data of observations since 1951 in the upper part of the Southern Bug River basin in the west of Ukraine are analyzed. The results indicate that the climate change occurring on Earth disrupts the regular cyclicity of groundwater flow indicators. The identified 7–8-year groundwater level and flow to the river cyclicity correlates well with the air temperature, precipitation and river runoff cyclicity. The noted groundwater cyclicity appears with some delay after the establishment of the 8-year air temperature cyclicity observed since 1969. The manifestation of a 7–8-year cycle depends on the groundwater table (GWT) depth. For shallow groundwater (1.0–2.5 m), such rhythms have been observed since 1975, and for deeper levels, since 1989, which is recognized as the year of the beginning of the climate changes. Moreover, 7–8-year rhythms in the fluctuation of groundwater parameters are characteristic of mainly high-water periods of their multiyear regime, and during the low-flow phase is significantly weakened. During 2011–2014, the groundwater levels abnormally decreased and the 8-year cycles were replaced with 5-year ones. The influence of air temperature on the groundwater regime exceeds the role of other factors. Wavelet analysis was used as the main method of periodicity observation. Gaussian and Morlet wavelets provide the visualization of pronounced periodicities of data. Using multiple correlation analysis, it was confirmed that temperature has become the dominant impact factor on the groundwater (GWT 1.5–4.0 m) regime in recent decades. [ABSTRACT FROM AUTHOR]

A fully cored sequence of Hesse Clay, Port Campbell Limestone and uppermost Gellibrand Marl in the onshore Otway Basin, southeastern Australia, offers new insight into the evolution of the middle Miocene Port Campbell Limestone. The Port Campbell Limestone comprises grey unconsolidated to semi-consolidated and rarely lithified bioclastic muddy carbonate sands in a stack of thin repetitive cycles within cycles of predominantly shoaling-upward character. A glauconitic band with a distinctive mollusc–echinoderm–bryozoan fauna provides a distinctive marker interval in the sequence. In mineralogy, the Port Campbell Limestone is predominantly calcite with traces of remnant aragonite in muddier low-permeability sands, and with dolomitic zones in permeable intervals. The small non-carbonate component of the Port Campbell Limestone is between 3 and 15 wt% and comprises quartz silt with minor clay, feldspar and mica. Dissolution overprints are prominent throughout the carbonate sequence. Three distinct geochemical signatures of provenance are evident in the Port Campbell Limestone sequence, including possible volcanogenic contributions with felsic sources. Foraminifera are common and generally well preserved. Foraminiferal data suggest a depositional transition from outer shelf conditions in the Gellibrand Marl at ca 15 Ma to middle shelf environments in the lower part of the Port Campbell Limestone during the Middle Miocene Climatic Optimum (MMCO) at ca 14.24 Ma. Shallowing after 14 Ma indicates variable paleodepths of <70 m during and following the end of the Middle Miocene Climatic Transition (MMCT) at ca 13.2 Ma when the sequence was emergent for a brief but undetermined period, corresponding with sharp changes in geochemical ratios. Observed cyclicity in these mid-shelfal, cold-water carbonates is strongly correlated with orbital forcings—eccentricity and obliquity. Sedimentation rates determined from cyclostratigraphic analysis indicate 4–6 cm/kyr at the end of the MMCO, diminishing to 1.5–3 cm/kyr during the MMCT and the subsequent accumulation of the Port Campbell Limestone. The Port Campbell Limestone is a stack of thin repetitive depositional cycles within cycles. The cyclicity is strongly correlated with orbital forcings—eccentricity and obliquity—and this is reflected in the geochemistry. Foraminiferal data suggest a depositional transition from outer shelf conditions in the Gellibrand Marl at ca 15 Ma to middle shelf environments in the lower part of the Port Campbell Limestone during the Middle Miocene Climatic Optimum (MMCO) at ca 14.24 Ma. The sequence was emergent for a brief but undetermined period at ca 13.2 Ma, corresponding with sharp changes in geochemical ratios. Three distinct geochemical signatures of provenance are evident in the Port Campbell Limestone sequence, including possible volcanogenic contributions with felsic sources. [ABSTRACT FROM AUTHOR]

Over the last decade, several lists of professions that will disappear soon have been published. In this aspect, the rapid development and spread of innovation, and digitalization of management processes threaten the existence of the accounting profession in its current traditional form. The article aims to outline the patterns of further evolution of the accounting profession in terms of scientific and technological progress based on the analysis of the history of the emergence and formation of accounting as a professional activity. The role of the accountant in the socio-economic structure of the world's major civilizations was analyzed from the emergence of the profession to the present time. The key features of accounting formation in the context of formational and civilizational approaches to understanding the historical process were considered. The scientific idea about the development of the accountant profession was deepened by highlighting the civilizational approach. In contrast to the formational approach, this approach involves cyclical development of the profession, variability of its manifestation and development in different parts of the world, and dependence on factors (economic, social, political, cultural, religious). The study results show that the development of the accounting profession follows a civilizational approach. Therefore, the potential replacement of some of its functions by technological solutions is not a threat to the profession's existence but rather a new stage of its development. A retrospective analysis of the accounting profession through the prism of a civilizational approach allows us to outline new accounting patterns and use them as a basis for its transformation to achieve compliance with the profession's future needs and challenges. [ABSTRACT FROM AUTHOR]

Let T denote a positive operator with spectral radius 1 on, say, an Lp-space. A classical result in infinite dimensional Perron–Frobenius theory says that, if T is irreducible and power bounded, then its peripheral point spectrum is either empty or a subgroup of the unit circle. In this note we show that the analogous assertion for the entire peripheral spectrum fails. More precisely, for every finite union U of finite subgroups of the unit circle we construct an irreducible stochastic operator on ℓ1 whose peripheral spectrum equals U. We also give a similar construction for the C0-semigroup case. [ABSTRACT FROM AUTHOR]

In this paper, we study weighted composition operators on the Fock space ℱ 2 . We prove that each bounded composition operator on ℱ 2 is complex symmetric. This is in sharp contrast with the phenomenon on the Hardy space H 2 (D) . We characterize Hermitian weighted composition operators and algebraic weighted composition operators with degree less than or equal to two on ℱ 2 . In addition, we investigate cyclicity and hypercyclicity of complex symmetric weighted composition operators. We also characterize those weighted composition operators that preserve frames, tight frames or normalized tight frames on ℱ 2 . Finally, we study mean ergodicity and uniformly mean ergodicity of weighted composition operators. [ABSTRACT FROM AUTHOR]

In this paper, we study the creation of zeros in a certain type of families of functions. The families studied are given by the difference of two basic functions with a translation made in the argument of one of these functions. The problem is motivated by applications in the 16th Hilbert problem and its ramifications. Here, we apply the results obtained to the study of bifurcations of critical periods in the Loud family of quadratic centers. [ABSTRACT FROM AUTHOR]

A pattern in the reliability of the behavior of high-voltage electrical transmission lines exposed to solar flares and magnetic storms which we have found previously is confirmed. A strong dependence of the damage and emergencies in power transformers on the intensity, frequency, and other parameters of magnetic storms is demonstrated. [ABSTRACT FROM AUTHOR]

The Upper Cretaceous Sudr Formation at Wadi El Dakhl, West Gulf of Suez (Northeast Egypt) has been described to analyze the facies and their cycles in conjunction with the influence of sea level and tectonics. The Sudr Formation (~ 130 m thick) is composed mainly of chalk and chalky limestone, with intercalations of argillaceous limestone and marl. It could be divided into two members; the Markha of the early–middle Campanian age and Abu Zenima of the late Campanian–Maastrichtian age. Biostratigraphically, nine planktonic foraminiferal zones have been recorded which encompass the studied section. Petrographic studies of the Sudr Formation led to identify five facies types; four carbonate facies and one marl facies. These facies have been deposited in the environmental conditions of an inner, middle, outer shelf, and open marine basinal setting. Two types of cyclicity have been identified: shallowing-upward and deepening-upward cycles which indicate a change in oscillation in the relative sea level. The comparison of the studied sea-level curve with the global curves of Haq et al. (Science 365:1156–1167, 1987) and Haq (Glob Planet Change 113:44–58, 2014) refer to general correspondence between them in addition to the clear effect of the tectonic events that influenced the obtained sea-level curve of the present study. Three pronounced tectonic events that impacted the deposition of the studied Sudr Formation were recorded. These tectonics were operated during the late Santonian, middle Campanian, and late Maastrichtian time interval. These tectonics are most probably related to the collision of African/Arabian and Eurasia Plates. [ABSTRACT FROM AUTHOR]

In this paper, we give a characterization of a hypercyclic weighted composition operator on ℓ p {\ell^{p}} ( 1 ≤ p < ∞ {1\leq p<\infty}). We also obtain some necessary conditions and sufficient conditions for the supercyclicity and cyclicity of a weighted composition operator on ℓ p {{\ell}^{p}} ( 1 ≤ p < ∞ {1\leq p<\infty}). [ABSTRACT FROM AUTHOR]

Redundancy in robotic manipulators has many advantages. It is successfully used to achieve better dexterity, and to avoid obstacles, singularities, or the kinematic limitations. However, redundancy makes the inverse kinematics (IK) problem harder to solve. The damped least squares (DLS) is a powerful method for calculating the IK of redundant robots, but it suffers from noncyclicity issue, where a closed curve motion in the Cartesian space of the end-effector (EEF) does not map into a closed curve in the joint space. This results in nonrepetitive motion in the joint space, even though the EEF motion is repetitive. In this article, we present a solution for the noncyclicity problem in the DLS method. The proposed scheme was successfully tested both in simulation (9 DoF robot) and on a real robotic manipulator (7 DoF robot). [ABSTRACT FROM AUTHOR]

The evolution of the negative coordinating conjunction ('neither'/'nor') from Latin to Modern French instantiates a type of cyclic development that is previously undocumented as such at the level of morphosyntax, viz. a 'semasiological' cycle. In effect, the conjunction appears to have taken an almost perfectly circular path. Thus, in Classical Latin, as is consonant with the typological status of that language as a Double Negation language, neque/nec was exclusively used in negative contexts. Medieval French being a Negative Concord language, on the other hand, its negative coordinating conjunction, ne, a direct descendant of neque/nec, was able to develop a full range of weak negative polarity uses. In a range of contexts, ne was thus semantically equivalent to either the additive conjunction et ('and') or the disjunction ou ('or'). By the end of the Classical French period, however, the conjunction (which by then takes the form ny/ni) has lost all of its weak negative polarity uses again, and it is used only in strong negatively polar environments in Modern Standard French. Based on data from the electronic corpora Frantext and Base de Français Médiéval, I analyze the three stages of this evolution. I show that, together with other developments in the French negative system, it falsifies predictions made in the literature and has consequences for the reconstruction of negative systems in less well-documented languages. [ABSTRACT FROM AUTHOR]

In this paper I review the locality domains of contextual allomorphy, contextual allosemy and morphophonology with a special emphasis on compounds. I show that when the applications of these processes within compounds are compared, we observe a distinction between the domain of contextual allomorphy and contextual allosemy, on one hand, and morphophonology on the other. I argue that the mismatches in the domains in question lie in the timing of the operations where operations applying prior to vocabulary insertion are constrained by cycles/phases, whereas operations applying after vocabulary insertion are constrained by the timing of concatenation. Under such approach, all of these processes will make reference to the same morphosyntactic structure although their domains will be marked by different points in that same structure. [ABSTRACT FROM AUTHOR]

In this paper, I present an analysis of pseudo-ABA patterns of morphology found in pronominal forms. I argue that an analysis that assumes unrestricted phonologically null allomorphy or unrestricted impoverishment overgenerates, allowing all the logically possible patterns of syncretism to appear. An analysis that includes spanned portmanteau exponents generates all and only the attested patterns of syncretism. Pseudo-ABA patterns arise when the complete pronominal tree (the structure for the anaphor) is exponed by a spanned exponent for [a [d]] and an exponent for p. Spanned portmanteau exponents are compatible with an analysis in which a and d are cyclic nodes, and one in which they are not. However, the analysis in which a and d are cyclic nodes is incompatible with another morphological behaviour of pronominal forms, namely variable exponence. To provide a unified analysis of pseudo-ABA patterns and variable exponence, a and d cannot be cyclic nodes. [ABSTRACT FROM AUTHOR]

This work concerns with polynomial families of real planar vector fields having a monodromic nilpotent singularity. The families considered are those for which the centers are characterized by the existence of a formal inverse integrating factor vanishing at the singularity with a leading term of minimum (1 , n) -quasihomogeneous weighted degree, being n the Andreev number of the singularity. These families strictly include the case n = 2 and also the ℤ 2 -equivariant families. In some cases for such families we solve, under additional assumptions, the local Hilbert 16th problem giving global bounds on the maximum number of limit cycles that can bifurcate from the singularity under perturbations within the family. Several examples are given. [ABSTRACT FROM AUTHOR]

The paleotemperature curves for water masses and average annual temperatures have been plotted for the first time on the basis of original and published data for the Central and Eastern Tethys for the Jurassic–Quaternary period. [ABSTRACT FROM AUTHOR]

The present study is focused on European beech (Fagus sylvatica L.) growth in eastern Bohemia in the Broumovské stěny National Nature Reserve, Czech Republic. The objective of this research was to develop an evaluation of European beech radial growth in relation to solar activity (number of sunspots), air temperature in the growing season, annual precipitation and air pollution (SO2 depositions). The highest positive significant correlation coefficient was found between radial growth of European beech and number of sunspots, followed by the correlation with air temperature in the growing season. The radial growth showed a negative significant correlation with SO2 depositions. The correlation of the radial growth indicates that precipitation and sunspots have a lower correlation coefficient with beech growth than seasonal temperature during an air pollution disaster in the 21st solar cycle. Radial growth, precipitation total and air temperature in the growing season were processed by spectral analysis for the evaluation of periodic cycles. The 7.5- to 11-year cycles were observed in air temperature and in sunspot cycles. Precipitation and air temperature in the growing season indicate a higher frequency at 3.7-year cycles. The long-term periodicity of radial growth was influenced by both solar activity and fluctuations of growing-season air temperature. [ABSTRACT FROM AUTHOR]

By the linearization property of Lipschitz-free spaces, any Lipschitz map f : M → N between two pointed metric spaces may be extended uniquely to a bounded linear operator f ^ : F (M) → F (N) between their corresponding Lipschitz-free spaces. In this note, we explore the connections between the dynamics of Lipschitz self-maps f : M → M and the linear dynamics of their extensions f ^ : F (M) → F (M) . This not only allows us to relate topological dynamical systems to linear dynamical systems but also provide a new class of hypercyclic operators acting on Lipschitz-free spaces. [ABSTRACT FROM AUTHOR]