27 results on '"Risch R"'
Search Results
2. Agricultural production and social change in the Bronze Age of southeast Spain: the Gatas Project
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CASTRO, P.V., CHAPMAN, R.W., GILI, S., LULL, V., RISCH, R., and SANAHUJA, M.E.
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Bronze age -- Research ,Antiquities -- Research ,Agriculture, Prehistoric -- Spain -- Research ,Social change -- Research ,Anthropology/archeology/folklore ,Research - Abstract
This paper presents new data on agricultural production, the palaeoenvironment and social change during the Bronze Age of southeast Spain. The authors argue against the inference of irrigation as the basis for agriculture and relate the emergence of cereal monoculture to the extraction of surplus and the exploitation of human labour. Key-words: southeast Spain, Bronze Age, agricultural production, irrigation, social change, Gatas, The site of Gatas is located in the foothills of the sierra Cabrera, on the southern edge of the basin of Vera, in the east of Almeria province, southeast Spain [...]
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- 1999
3. Die Entstehung des Strahles schneller Moleküle an der Kathode eines Lichtbogens
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Risch, R. and Lüdi, F.
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- 1932
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4. The Silversmith's Workshop of Tira Del Lienzo (Totana, Murcia) In The Context of Iberian Bronze Age Metallurgy.
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Delgado‐Raack, S., Lull, V., Martin, K., Micó, R., Rihuete Herrada, C., and Risch, R.
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SILVERSMITHS ,BRONZE Age metalwork ,IBERIANS ,FUNCTIONAL analysis ,LABOR process ,FORGING - Abstract
The south-east of the Iberian Peninsula saw deep social and political changes at the dawn of the second millennium bce. The emergence of important economic asymmetries inside communities was apparently based to a large extent on control of the secondary metallurgical production process; namely, forging. In this sense, the recently excavated architectural complex at the Argaric site of Tira del Lienzo constitutes an exceptional finding. At this site a series of macrolithic artefacts were recorded, which were related to the forging of metals and, more specifically, to the working of silver, according to morpho-technological and functional studies (use-wear and residue analysis). [ABSTRACT FROM AUTHOR]
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- 2016
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5. Geometrisch bedingtes Anisotropieverhalten von Lochblechen.
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El-Magd, E., Kranz, A., and Risch, R.
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- 2001
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6. Die Entstehung des Strahles schneller Moleküle an der Kathode eines Lichtbogens.
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Risch, R. and Lüdi, F.
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Copyright of Zeitschrift für Physik is the property of Springer Nature 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.)
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- 1931
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7. Apparatus for the measurement of the magnetization of steel.
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Risch, R., Gribi, W., and Boesch, H.
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- 1974
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8. ENERGY LOSSES IN THE FEEDING OF SUPERCONDUCTING COILS WITH MAGNETIC FLUX PUMPS ACCORDING TO H.L. LAQUER
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Risch, R
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- 1965
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9. Pottery spilled the beans: Patterns in the processing and consumption of dietary lipids in Central Germany from the Early Neolithic to the Bronze Age.
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Breu A, Risch R, Molina E, Friederich S, Meller H, and Knoll F
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- Germany, Humans, History, Ancient, Dietary Fats analysis, Ceramics history, Archaeology
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The need to better understand economic change and the social uses of long-ago established pottery types to prepare and consume food has led to the study of 124 distinct ceramic vessels from 17 settlement and funerary sites in Central Germany (present day Saxony-Anhalt). These, dated from the Early Neolithic (from 5450 cal. BCE onwards) to the Late Bronze Age (1300-750 cal. BCE; youngest sample ca. 1000 BCE), include vessels from the Linear Pottery (LBK), Schiepzig/Schöningen groups (SCHIP), Baalberge (BAC), Corded Ware (CWC), Bell Beaker (BBC), and Únětice (UC) archaeological cultures. Organic residue analyses performed on this assemblage determined the presence of vessel contents surviving as lipid residues in 109 cases. These were studied in relation to the changing use of settlement and funerary pottery types and, in the case of burials, to the funerary contexts in which the vessels had been placed. The obtained results confirmed a marked increase in the consumption of dairy products linked to innovations in pottery types (e.g., small cups) during the Funnel Beaker related Baalberge Culture of the 4th millennium BCE. Although the intensive use of dairy products may have continued into the 3rd millennium BCE, especially amongst Bell Beaker populations, Corded Ware vessels found in funerary contexts suggest an increase in the importance of non-ruminant products, which may be linked to the production of specific vessel shapes and decoration. In the Early Bronze Age circum-Harz Únětice group (ca. 2200-1550 BCE), which saw the emergence of a highly hierarchical society, a greater variety of animal and plant derived products was detected in a much more standardised but, surprisingly, more multifunctional pottery assemblage. This long-term study of lipid residues from a concise region in Central Europe thus reveals the complex relationships that prehistoric populations established between food resources and the main means to prepare, store, and consume them., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Breu et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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10. Cases of trisomy 21 and trisomy 18 among historic and prehistoric individuals discovered from ancient DNA.
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Rohrlach AB, Rivollat M, de-Miguel-Ibáñez P, Moilanen U, Liira AM, Teixeira JC, Roca-Rada X, Armendáriz-Martija J, Boyadzhiev K, Boyadzhiev Y, Llamas B, Tiliakou A, Mötsch A, Tuke J, Prevedorou EA, Polychronakou-Sgouritsa N, Buikstra J, Onkamo P, Stockhammer PW, Heyne HO, Lemke JR, Risch R, Schiffels S, Krause J, Haak W, and Prüfer K
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- Pregnancy, Female, Humans, Trisomy genetics, Trisomy 18 Syndrome genetics, DNA, Ancient, Trisomy 13 Syndrome, Down Syndrome genetics, Chromosome Disorders genetics
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Aneuploidies, and in particular, trisomies represent the most common genetic aberrations observed in human genetics today. To explore the presence of trisomies in historic and prehistoric populations we screen nearly 10,000 ancient human individuals for the presence of three copies of any of the target autosomes. We find clear genetic evidence for six cases of trisomy 21 (Down syndrome) and one case of trisomy 18 (Edwards syndrome), and all cases are present in infant or perinatal burials. We perform comparative osteological examinations of the skeletal remains and find overlapping skeletal markers, many of which are consistent with these syndromes. Interestingly, three cases of trisomy 21, and the case of trisomy 18 were detected in two contemporaneous sites in early Iron Age Spain (800-400 BCE), potentially suggesting a higher frequency of burials of trisomy carriers in those societies. Notably, the care with which the burials were conducted, and the items found with these individuals indicate that ancient societies likely acknowledged these individuals with trisomy 18 and 21 as members of their communities, from the perspective of burial practice., (© 2024. The Author(s).)
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- 2024
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11. Kinship practices in the early state El Argar society from Bronze Age Iberia.
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Villalba-Mouco V, Oliart C, Rihuete-Herrada C, Rohrlach AB, Fregeiro MI, Childebayeva A, Ringbauer H, Olalde I, Celdrán Beltrán E, Puello-Mora C, Valério M, Krause J, Lull V, Micó R, Risch R, and Haak W
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- Humans, Adult, Male, Female, History, Ancient, Europe, Europe, Eastern, Family, Archaeology, Burial
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The Early Bronze Age in Europe is characterized by social and genetic transformations, starting in the early 3rd millennium BCE. New settlement and funerary structures, artifacts and techniques indicate times of change with increasing economic asymmetries and political hierarchization. Technological advances in metallurgy also played an important role, facilitating trade and exchange networks, which became tangible in higher levels of mobility and connectedness. Archeogenetic studies have revealed a substantial transformation of the genetic ancestry around this time, ultimately linked to the expansion of steppe- and forest steppe pastoralists from Eastern Europe. Evidence for emerging infectious diseases such as Yersinia pestis adds further complexity to these tumultuous and transformative times. The El Argar complex in southern Iberia marks the genetic turnover in southwestern Europe ~ 2200 BCE that accompanies profound changes in the socio-economic structure of the region. To answer the question of who was buried in the emblematic double burials of the El Argar site La Almoloya, we integrated results from biological relatedness analyses and archaeological funerary contexts and refined radiocarbon-based chronologies from 68 individuals. We find that the El Argar society was virilocally and patrilineally organized and practiced reciprocal female exogamy, supported by pedigrees that extend up to five generations along the paternal line. Synchronously dated adult males and females from double tombs were found to be unrelated mating partners, whereby the incoming females reflect socio-political alliances among El Argar groups. In three cases these unions had common offspring, while paternal half-siblings also indicate serial monogamy or polygyny., (© 2022. The Author(s).)
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- 2022
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12. Effectiveness of 20 years of conservation investments in protecting orangutans.
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Santika T, Sherman J, Voigt M, Ancrenaz M, Wich SA, Wilson KA, Possingham H, Massingham E, Seaman DJI, Ashbury AM, Azvi TS, Banes GL, Barrow EJ, Burslem DFRP, Delgado RA, Erman A, Fredriksson G, Goossens B, Houghton M, Indrawan TP, Jaya RL, Kanamori T, Knott CD, Leiman A, Liswanto D, Mach M, Marshall AJ, Martin JGA, Midora L, Miller A, Milne S, Morgans C, Nardiyono N, Perwitasari-Farajallah D, Priatna D, Risch R, Riyadi GM, Russon A, Sembiring J, Setiawan E, Sidiq M, Simon D, Spehar S, Struebig MJ, Sumardi I, Tjiu A, Wahyudi R, Yanuar A, and Meijaard E
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- Animals, Conservation of Natural Resources, Indonesia, Pongo pygmaeus, Population Dynamics, Endangered Species, Pongo
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Conservation strategies are rarely systematically evaluated, which reduces transparency, hinders the cost-effective deployment of resources, and hides what works best in different contexts. Using data on the iconic and critically endangered orangutan (Pongo spp.), we developed a novel spatiotemporal framework for evaluating conservation investments. We show that around USD 1 billion was invested between 2000 and 2019 into orangutan conservation by governments, nongovernmental organizations, companies, and communities. Broken down by allocation to different conservation strategies, we find that habitat protection, patrolling, and public outreach had the greatest return on investment for maintaining orangutan populations. Given the variability in threats, land-use opportunity costs, and baseline remunerations in different regions, there were differential benefits per dollar invested across conservation activities and regions. We show that although challenging from a data and analysis perspective, it is possible to fully understand the relationships between conservation investments and outcomes and the external factors that influence these outcomes. Such analyses can provide improved guidance toward a more effective biodiversity conservation. Insights into the spatiotemporal interplays between the costs and benefits driving effectiveness can inform decisions about the most suitable orangutan conservation strategies for halting population declines. Although our study focuses on the three extant orangutan species of Sumatra and Borneo, our findings have broad application for evidence-based conservation science and practice worldwide., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2022 Elsevier Inc. All rights reserved.)
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- 2022
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13. Development and validation of a prediction model for estimating one-month mortality of adult COVID-19 patients presenting at emergency department with suspected pneumonia: a multicenter analysis.
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Chou EH, Wang CH, Chou FY, Tsai CL, Wolfshohl J, Garrett J, Bhakta T, Shedd A, Hassani D, Risch R, d'Etienne J, Ogola GO, Lu TC, and Ma MH
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- Adult, Emergency Service, Hospital, Humans, ROC Curve, Retrospective Studies, SARS-CoV-2, COVID-19, Pneumonia diagnosis
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There are only a few models developed for risk-stratifying COVID-19 patients with suspected pneumonia in the emergency department (ED). We aimed to develop and validate a model, the COVID-19 ED pneumonia mortality index (CoV-ED-PMI), for predicting mortality in this population. We retrospectively included adult COVID-19 patients who visited EDs of five study hospitals in Texas and who were diagnosed with suspected pneumonia between March and November 2020. The primary outcome was 1-month mortality after the index ED visit. In the derivation cohort, multivariable logistic regression was used to develop the CoV-ED-PMI model. In the chronologically split validation cohort, the discriminative performance of the CoV-ED-PMI was assessed by the area under the receiver operating characteristic curve (AUC) and compared with other existing models. A total of 1678 adult ED records were included for analysis. Of them, 180 patients sustained 1-month mortality. There were 1174 and 504 patients in the derivation and validation cohorts, respectively. Age, body mass index, chronic kidney disease, congestive heart failure, hepatitis, history of transplant, neutrophil-to-lymphocyte ratio, lactate dehydrogenase, and national early warning score were included in the CoV-ED-PMI. The model was validated with good discriminative performance (AUC: 0.83, 95% confidence interval [CI]: 0.79-0.87), which was significantly better than the CURB-65 (AUC: 0.74, 95% CI: 0.69-0.79, p-value: < 0.001). The CoV-ED-PMI had a good predictive performance for 1-month mortality in COVID-19 patients with suspected pneumonia presenting at ED. This free tool is accessible online, and could be useful for clinical decision-making in the ED., (© 2021. Società Italiana di Medicina Interna (SIMI).)
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- 2022
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14. Genomic transformation and social organization during the Copper Age-Bronze Age transition in southern Iberia.
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Villalba-Mouco V, Oliart C, Rihuete-Herrada C, Childebayeva A, Rohrlach AB, Fregeiro MI, Celdrán Beltrán E, Velasco-Felipe C, Aron F, Himmel M, Freund C, Alt KW, Salazar-García DC, García Atiénzar G, de Miguel Ibáñez MP, Hernández Pérez MS, Barciela V, Romero A, Ponce J, Martínez A, Lomba J, Soler J, Martínez AP, Avilés Fernández A, Haber-Uriarte M, Roca de Togores Muñoz C, Olalde I, Lalueza-Fox C, Reich D, Krause J, García Sanjuán L, Lull V, Micó R, Risch R, and Haak W
- Abstract
The emerging Bronze Age (BA) of southeastern Iberia saw marked social changes. Late Copper Age (CA) settlements were abandoned in favor of hilltop sites, and collective graves were largely replaced by single or double burials with often distinctive grave goods indirectly reflecting a hierarchical social organization, as exemplified by the BA El Argar group. We explored this transition from a genomic viewpoint by tripling the amount of data available for this period. Concomitant with the rise of El Argar starting ~2200 cal BCE, we observe a complete turnover of Y-chromosome lineages along with the arrival of steppe-related ancestry. This pattern is consistent with a founder effect in male lineages, supported by our finding that males shared more relatives at sites than females. However, simple two-source models do not find support in some El Argar groups, suggesting additional genetic contributions from the Mediterranean that could predate the BA.
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- 2021
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15. Mortality Variations of COVID-19 from Different Hospital Settings During Different Pandemic Phases: A Multicenter Retrospective Study.
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Chou EH, Wang CH, Tsai CL, Garrett J, Bhakta T, Shedd A, Hassani D, Risch R, d'Etienne J, Ogola GO, Ma MH, Lu TC, and Wang H
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- Adult, Aged, Humans, Male, Medicare, Middle Aged, Residence Characteristics, Retrospective Studies, SARS-CoV-2, United States epidemiology, COVID-19 mortality, Emergency Service, Hospital statistics & numerical data, Hospital Mortality, Hospitals, Urban statistics & numerical data, Pandemics, Suburban Health Services statistics & numerical data
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Introduction: Diverse coronavirus disease 2019 (COVID-19) mortalities have been reported but focused on identifying susceptible patients at risk of more severe disease or death. This study aims to investigate the mortality variations of COVID-19 from different hospital settings during different pandemic phases., Methods: We retrospectively included adult (≥18 years) patients who visited emergency departments (ED) of five hospitals in the state of Texas and who were diagnosed with COVID-19 between March-November 2020. The included hospitals were dichotomized into urban and suburban based on their geographic location. The primary outcome was mortality that occurred either during hospital admission or within 30 days after the index ED visit. We used multivariable logistic regression to investigate the associations between independent variables and outcome. Generalized additive models were employed to explore the mortality variation during different pandemic phases., Results: A total of 1,788 adult patients who tested positive for COVID-19 were included in the study. The median patient age was 54.6 years, and 897 (50%) patients were male. Urban hospitals saw approximately 59.5% of the total patients. A total of 197 patients died after the index ED visit. The analysis indicated visits to the urban hospitals (odds ratio [OR] 2.14, 95% confidence interval [CI], 1.41, 3.23), from March to April (OR 2.04, 95% CI, 1.08, 3.86), and from August to November (OR 2.15, 95% CI, 1.37, 3.38) were positively associated with mortality., Conclusion: Visits to the urban hospitals were associated with a higher risk of mortality in patients with COVID-19 when compared to visits to the suburban hospitals. The mortality risk rebounded and showed significant difference between urban and suburban hospitals since August 2020. Optimal allocation of medical resources may be necessary to bridge this gap in the foreseeable future.
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- 2021
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16. Reconstructing Bronze Age diets and farming strategies at the early Bronze Age sites of La Bastida and Gatas (southeast Iberia) using stable isotope analysis.
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Knipper C, Rihuete-Herrada C, Voltas J, Held P, Lull V, Micó R, Risch R, and Alt KW
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- Adolescent, Adult, Animal Husbandry, Animals, Animals, Domestic, Animals, Wild, Archaeology, Bone and Bones chemistry, Child, Child, Preschool, Crops, Agricultural, Edible Grain, Female, History, Ancient, Humans, Infant, Male, Spain, Young Adult, Carbon Isotopes analysis, Diet history, Nitrogen Isotopes analysis
- Abstract
The El Argar society of the Bronze Age in the southeast of the Iberian Peninsula (2200-1550 cal BCE) was among the first complex societies in Europe. Its economy was based on cereal cultivation and metallurgy, it was organized hierarchically, and successively expanded its territory. Most of the monumentally fortified settlements lay on steeply sloped mountains, separated by fertile plains, and allowed optimal control of the area. Here, we explore El Argar human diets, animal husbandry strategies, and food webs using stable carbon and nitrogen isotope analysis of charred cereal grains as well as human and animal bone collagen. The sample comprised 75 human individuals from the sites of La Bastida (n = 52) and Gatas (n = 23), 32 domesticated and wild animals as well as 76 barley and 29 wheat grains from two chronological phases of a total time span of ca. 650 years. The grains indicate extensive cereal cultivation under rain-fed conditions with little to moderate application of manure. Especially at La Bastida, crops and their by-products contributed significantly to the forage of the domesticated animals, which attests to a strong interrelation of cultivation and animal husbandry. Trophic level spacing and Bayesian modelling confirm that human diets were largely based on barley with some contribution of meat or dairy products. A cross-sectional analysis of bone collagen suggests that children were breastfed until about 1.5-2 years old, and infants from Gatas may have suffered from more metabolic stress than those at La Bastida. Adults of both sexes consumed similar diets that reflect social and chronological variation to some extent. Despite significantly higher δ13C and δ15N values at La Bastida than at Gatas, the isotopic data of the staple crops and domestic animals from both sites indicate that such differences do not necessarily correspond to different average human diets, but to agricultural strategies. These results urge for a reassessment of previous isotope studies in which only human remains have been taken into account. The study highlights that disentangling the complex influences on human isotope compositions requires a firm set of comparative data., Competing Interests: The authors have declared that no competing interests exist.
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- 2020
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17. Erratum: The Beaker phenomenon and the genomic transformation of northwest Europe.
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Olalde I, Brace S, Allentoft ME, Armit I, Kristiansen K, Booth T, Rohland N, Mallick S, Szécsényi-Nagy A, Mittnik A, Altena E, Lipson M, Lazaridis I, Harper TK, Patterson N, Broomandkhoshbacht N, Diekmann Y, Faltyskova Z, Fernandes D, Ferry M, Harney E, de Knijff P, Michel M, Oppenheimer J, Stewardson K, Barclay A, Alt KW, Liesau C, Ríos P, Blasco C, Miguel JV, García RM, Fernández AA, Bánffy E, Bernabò-Brea M, Billoin D, Bonsall C, Bonsall L, Allen T, Büster L, Carver S, Navarro LC, Craig OE, Cook GT, Cunliffe B, Denaire A, Dinwiddy KE, Dodwell N, Ernée M, Evans C, Kuchařík M, Farré JF, Fowler C, Gazenbeek M, Pena RG, Haber-Uriarte M, Haduch E, Hey G, Jowett N, Knowles T, Massy K, Pfrengle S, Lefranc P, Lemercier O, Lefebvre A, Martínez CH, Olmo VG, Ramírez AB, Maurandi JL, Majó T, McKinley JI, McSweeney K, Mende BG, Modi A, Kulcsár G, Kiss V, Czene A, Patay R, Endrődi A, Köhler K, Hajdu T, Szeniczey T, Dani J, Bernert Z, Hoole M, Cheronet O, Keating D, Velemínský P, Dobeš M, Candilio F, Brown F, Fernández RF, Herrero-Corral AM, Tusa S, Carnieri E, Lentini L, Valenti A, Zanini A, Waddington C, Delibes G, Guerra-Doce E, Neil B, Brittain M, Luke M, Mortimer R, Desideri J, Besse M, Brücken G, Furmanek M, Hałuszko A, Mackiewicz M, Rapiński A, Leach S, Soriano I, Lillios KT, Cardoso JL, Pearson MP, Włodarczak P, Price TD, Prieto P, Rey PJ, Risch R, Guerra MAR, Schmitt A, Serralongue J, Silva AM, Smrčka V, Vergnaud L, Zilhão J, Caramelli D, Higham T, Thomas MG, Kennett DJ, Fokkens H, Heyd V, Sheridan A, Sjögren KG, Stockhammer PW, Krause J, Pinhasi R, Haak W, Barnes I, Lalueza-Fox C, and Reich D
- Abstract
This corrects the article DOI: 10.1038/nature25738.
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- 2018
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18. The Beaker phenomenon and the genomic transformation of northwest Europe.
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Olalde I, Brace S, Allentoft ME, Armit I, Kristiansen K, Booth T, Rohland N, Mallick S, Szécsényi-Nagy A, Mittnik A, Altena E, Lipson M, Lazaridis I, Harper TK, Patterson N, Broomandkhoshbacht N, Diekmann Y, Faltyskova Z, Fernandes D, Ferry M, Harney E, de Knijff P, Michel M, Oppenheimer J, Stewardson K, Barclay A, Alt KW, Liesau C, Ríos P, Blasco C, Miguel JV, García RM, Fernández AA, Bánffy E, Bernabò-Brea M, Billoin D, Bonsall C, Bonsall L, Allen T, Büster L, Carver S, Navarro LC, Craig OE, Cook GT, Cunliffe B, Denaire A, Dinwiddy KE, Dodwell N, Ernée M, Evans C, Kuchařík M, Farré JF, Fowler C, Gazenbeek M, Pena RG, Haber-Uriarte M, Haduch E, Hey G, Jowett N, Knowles T, Massy K, Pfrengle S, Lefranc P, Lemercier O, Lefebvre A, Martínez CH, Olmo VG, Ramírez AB, Maurandi JL, Majó T, McKinley JI, McSweeney K, Mende BG, Modi A, Kulcsár G, Kiss V, Czene A, Patay R, Endrődi A, Köhler K, Hajdu T, Szeniczey T, Dani J, Bernert Z, Hoole M, Cheronet O, Keating D, Velemínský P, Dobeš M, Candilio F, Brown F, Fernández RF, Herrero-Corral AM, Tusa S, Carnieri E, Lentini L, Valenti A, Zanini A, Waddington C, Delibes G, Guerra-Doce E, Neil B, Brittain M, Luke M, Mortimer R, Desideri J, Besse M, Brücken G, Furmanek M, Hałuszko A, Mackiewicz M, Rapiński A, Leach S, Soriano I, Lillios KT, Cardoso JL, Pearson MP, Włodarczak P, Price TD, Prieto P, Rey PJ, Risch R, Rojo Guerra MA, Schmitt A, Serralongue J, Silva AM, Smrčka V, Vergnaud L, Zilhão J, Caramelli D, Higham T, Thomas MG, Kennett DJ, Fokkens H, Heyd V, Sheridan A, Sjögren KG, Stockhammer PW, Krause J, Pinhasi R, Haak W, Barnes I, Lalueza-Fox C, and Reich D
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- Chromosomes, Human, Y genetics, DNA, Ancient, Europe, Gene Pool, Genetics, Population, Haplotypes, History, Ancient, Humans, Male, Spatio-Temporal Analysis, Cultural Evolution history, Genome, Human genetics, Genomics, Human Migration history
- Abstract
From around 2750 to 2500 bc, Bell Beaker pottery became widespread across western and central Europe, before it disappeared between 2200 and 1800 bc. The forces that propelled its expansion are a matter of long-standing debate, and there is support for both cultural diffusion and migration having a role in this process. Here we present genome-wide data from 400 Neolithic, Copper Age and Bronze Age Europeans, including 226 individuals associated with Beaker-complex artefacts. We detected limited genetic affinity between Beaker-complex-associated individuals from Iberia and central Europe, and thus exclude migration as an important mechanism of spread between these two regions. However, migration had a key role in the further dissemination of the Beaker complex. We document this phenomenon most clearly in Britain, where the spread of the Beaker complex introduced high levels of steppe-related ancestry and was associated with the replacement of approximately 90% of Britain's gene pool within a few hundred years, continuing the east-to-west expansion that had brought steppe-related ancestry into central and northern Europe over the previous centuries.
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- 2018
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19. The maternal genetic make-up of the Iberian Peninsula between the Neolithic and the Early Bronze Age.
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Szécsényi-Nagy A, Roth C, Brandt G, Rihuete-Herrada C, Tejedor-Rodríguez C, Held P, García-Martínez-de-Lagrán Í, Arcusa Magallón H, Zesch S, Knipper C, Bánffy E, Friederich S, Meller H, Bueno Ramírez P, Barroso Bermejo R, de Balbín Behrmann R, Herrero-Corral AM, Flores Fernández R, Alonso Fernández C, Jiménez Echevarria J, Rindlisbacher L, Oliart C, Fregeiro MI, Soriano I, Vicente O, Micó R, Lull V, Soler Díaz J, López Padilla JA, Roca de Togores Muñoz C, Hernández Pérez MS, Jover Maestre FJ, Lomba Maurandi J, Avilés Fernández A, Lillios KT, Silva AM, Magalhães Ramalho M, Oosterbeek LM, Cunha C, Waterman AJ, Roig Buxó J, Martínez A, Ponce Martínez J, Hunt Ortiz M, Mejías-García JC, Pecero Espín JC, Cruz-Auñón Briones R, Tomé T, Carmona Ballestero E, Cardoso JL, Araújo AC, Liesau von Lettow-Vorbeck C, Blasco Bosqued C, Ríos Mendoza P, Pujante A, Royo-Guillén JI, Esquembre Beviá MA, Dos Santos Goncalves VM, Parreira R, Morán Hernández E, Méndez Izquierdo E, Vega Y Miguel J, Menduiña García R, Martínez Calvo V, López Jiménez O, Krause J, Pichler SL, Garrido-Pena R, Kunst M, Risch R, Rojo-Guerra MA, Haak W, and Alt KW
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- Agriculture history, DNA, Mitochondrial history, Europe, Haplotypes, History, Ancient, Humans, DNA, Ancient, DNA, Mitochondrial genetics, Genetic Variation genetics, Genetics, Population
- Abstract
Agriculture first reached the Iberian Peninsula around 5700 BCE. However, little is known about the genetic structure and changes of prehistoric populations in different geographic areas of Iberia. In our study, we focus on the maternal genetic makeup of the Neolithic (~ 5500-3000 BCE), Chalcolithic (~ 3000-2200 BCE) and Early Bronze Age (~ 2200-1500 BCE). We report ancient mitochondrial DNA results of 213 individuals (151 HVS-I sequences) from the northeast, central, southeast and southwest regions and thus on the largest archaeogenetic dataset from the Peninsula to date. Similar to other parts of Europe, we observe a discontinuity between hunter-gatherers and the first farmers of the Neolithic. During the subsequent periods, we detect regional continuity of Early Neolithic lineages across Iberia, however the genetic contribution of hunter-gatherers is generally higher than in other parts of Europe and varies regionally. In contrast to ancient DNA findings from Central Europe, we do not observe a major turnover in the mtDNA record of the Iberian Late Chalcolithic and Early Bronze Age, suggesting that the population history of the Iberian Peninsula is distinct in character.
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- 2017
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20. Dataset on the evidence of bee products processing: A functional definition of a specialized type of macro-lithic tool.
- Author
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Ache M, Delgado-Raack S, Molina E, Risch R, and Rosell-Melé A
- Abstract
The database includes spatial, chronological and technological information about the analyzed tools in the article entitled "Evidence of bee products processing: a functional definition of a specialized type of macro-lithic tool" (Ache et al., 2017 [1]). The technological information refers to the tool type, its rock type, weight, state of preservation, morphology, metrical data and functional features. We also provide an index of acronyms to properly understand the dataset published here.
- Published
- 2017
- Full Text
- View/download PDF
21. Massive migration from the steppe was a source for Indo-European languages in Europe.
- Author
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Haak W, Lazaridis I, Patterson N, Rohland N, Mallick S, Llamas B, Brandt G, Nordenfelt S, Harney E, Stewardson K, Fu Q, Mittnik A, Bánffy E, Economou C, Francken M, Friederich S, Pena RG, Hallgren F, Khartanovich V, Khokhlov A, Kunst M, Kuznetsov P, Meller H, Mochalov O, Moiseyev V, Nicklisch N, Pichler SL, Risch R, Rojo Guerra MA, Roth C, Szécsényi-Nagy A, Wahl J, Meyer M, Krause J, Brown D, Anthony D, Cooper A, Alt KW, and Reich D
- Subjects
- Europe ethnology, Genome, Human genetics, History, Ancient, Humans, Male, Polymorphism, Genetic genetics, Population Dynamics, Russia, Cultural Evolution history, Grassland, Human Migration history, Language history
- Abstract
We generated genome-wide data from 69 Europeans who lived between 8,000-3,000 years ago by enriching ancient DNA libraries for a target set of almost 400,000 polymorphisms. Enrichment of these positions decreases the sequencing required for genome-wide ancient DNA analysis by a median of around 250-fold, allowing us to study an order of magnitude more individuals than previous studies and to obtain new insights about the past. We show that the populations of Western and Far Eastern Europe followed opposite trajectories between 8,000-5,000 years ago. At the beginning of the Neolithic period in Europe, ∼8,000-7,000 years ago, closely related groups of early farmers appeared in Germany, Hungary and Spain, different from indigenous hunter-gatherers, whereas Russia was inhabited by a distinctive population of hunter-gatherers with high affinity to a ∼24,000-year-old Siberian. By ∼6,000-5,000 years ago, farmers throughout much of Europe had more hunter-gatherer ancestry than their predecessors, but in Russia, the Yamnaya steppe herders of this time were descended not only from the preceding eastern European hunter-gatherers, but also from a population of Near Eastern ancestry. Western and Eastern Europe came into contact ∼4,500 years ago, as the Late Neolithic Corded Ware people from Germany traced ∼75% of their ancestry to the Yamnaya, documenting a massive migration into the heartland of Europe from its eastern periphery. This steppe ancestry persisted in all sampled central Europeans until at least ∼3,000 years ago, and is ubiquitous in present-day Europeans. These results provide support for a steppe origin of at least some of the Indo-European languages of Europe.
- Published
- 2015
- Full Text
- View/download PDF
22. Postictal ventricular tachycardia after electroconvulsive therapy treatment associated with a lithium-duloxetine combination.
- Author
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Heinz B, Lorenzo P, Markus R, Holger H, Beatrix R, Erich S, and Alain B
- Subjects
- Androstanols, Anesthesia, Antidepressive Agents therapeutic use, Antimanic Agents therapeutic use, Anxiety therapy, Bipolar Disorder drug therapy, Bipolar Disorder psychology, Bipolar Disorder therapy, Duloxetine Hydrochloride, Electrocardiography, Female, Humans, Lithium Carbonate therapeutic use, Middle Aged, Neuromuscular Depolarizing Agents, Neuromuscular Nondepolarizing Agents, Psychomotor Agitation etiology, Recurrence, Rocuronium, Succinylcholine, Thiophenes therapeutic use, Antidepressive Agents adverse effects, Antimanic Agents adverse effects, Electroconvulsive Therapy adverse effects, Lithium Carbonate adverse effects, Tachycardia, Ventricular etiology, Thiophenes adverse effects
- Abstract
This report addresses the dilemma of continuing lithium prophylaxis and antidepressant therapy in view of cardiovascular adverse effects under electroconvulsive therapy (ECT) in patients with a long history of recurrent affective disorders. A severely depressed 48-year-old woman who had been treated with lithium for 18 years developed a ventricular tachycardia during ECT. Possible interaction with succinylcholine was taken into account, and rocuronium was used as an alternative muscle relaxant. Electroconvulsive therapy was continued without adverse effects after reduction of lithium and withdrawal from duloxetine. Systemic studies on cardiac adverse effects of serotonin and norepinephrine reuptake inhibitors and serotonin and norepinephrine reuptake inhibitor-lithium combinations during ECT are needed.
- Published
- 2013
- Full Text
- View/download PDF
23. Monitoring of wild birds for Newcastle disease virus in Switzerland using real time RT-PCR.
- Author
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Camenisch G, Bandli R, and Hoop R
- Subjects
- Animals, Animals, Wild virology, Birds, Disease Reservoirs veterinary, Disease Reservoirs virology, Female, Male, Reverse Transcriptase Polymerase Chain Reaction veterinary, Species Specificity, Switzerland epidemiology, Newcastle Disease epidemiology, Newcastle disease virus isolation & purification, Sentinel Surveillance veterinary
- Abstract
Wild birds are considered to be the natural reservoir of the Newcastle disease virus (NDV; avian paramyxovirus-1) causing New-castle disease, and are often suspected to be involved in outbreaks in domesticated birds. To assess the epidemiologic status of wild birds living, or overwintering, in Switzerland, 3,049 cloacal swabs covering the period 2003-2006 were screened for NDV, using real time RT-PCR. All samples were negative. This result seems in contrast with previously performed serologic screenings of wild birds.
- Published
- 2008
- Full Text
- View/download PDF
24. Wide-complex tachycardia: continued evaluation of diagnostic criteria.
- Author
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Isenhour JL, Craig S, Gibbs M, Littmann L, Rose G, and Risch R
- Subjects
- Adult, Aged, Aged, 80 and over, Confidence Intervals, Emergency Service, Hospital, Female, Humans, Male, Middle Aged, North Carolina, Observer Variation, Retrospective Studies, Sensitivity and Specificity, Cardiology methods, Clinical Competence, Electrocardiography, Emergency Medicine methods, Tachycardia, Supraventricular diagnosis, Tachycardia, Ventricular diagnosis
- Abstract
Objective: To evaluate the accuracy of the Brugada algorithm for analysis of wide-complex tachycardia (WCT) when applied by board-certified emergency physicians and board-certified cardiologists., Methods: A database consisting of 157 electrocardiograms of WCTs were evaluated in a blinded fashion using the Brugada criteria to determine the presence of ventricular tachycardia (VT) or supraventricular tachycardia with aberrancy. These results were then compared with the electrophysiologically proven diagnosis for each tracing. Sensitivity and specificity of the Brugada criteria for diagnosis of VT were calculated. Two board-certified emergency physicians and two board-certified cardiologists analyzed each tracing, and interobserver agreement was determined using the kappa statistic., Results: Sensitivity and specificity for the determination of VT using the Brugada algorithm were 85% [95% confidence interval (95% CI) = 79% to 91%] and 60% (95% CI = 43% to 78%) for cardiologist 1 (C 1) and 91% (95% CI = 86% to 96%) and 55% (95% CI = 37% to 72%) for C 2. Emergency physician (EP 1) achieved a sensitivity of 83% (95% CI = 78% to 91%) and a specificity of 43% (95% CI = 25% to 59%), while EP 2 attained 79% (95% CI = 73% to 87%) and 70% (95% CI = 51% to 84%), respectively. The original authors achieved a sensitivity of 98.7% and specificity of 96.5% when determining VT in their study population. Interobserver agreement for the emergency physicians and the cardiologists in determining VT was 82% and 81%, respectively., Conclusions: Neither the emergency physicians nor the cardiologists were able to achieve a sensitivity or specificity as high as that reported by the original investigators when using the Brugada algorithm to determine the presence of VT.
- Published
- 2000
- Full Text
- View/download PDF
25. HPAC, a new human glucocorticoid-sensitive pancreatic ductal adenocarcinoma cell line.
- Author
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Gower WR Jr, Risch RM, Godellas CV, and Fabri PJ
- Subjects
- Adenocarcinoma drug therapy, Adenocarcinoma genetics, Animals, Carcinoma, Pancreatic Ductal genetics, Cell Line, Tumor, Cell Proliferation drug effects, Dexamethasone metabolism, Dose-Response Relationship, Drug, Hormone Antagonists pharmacology, Humans, Insulin pharmacology, Karyotype, Male, Mice, Inbred BALB C, Mice, Nude, Mifepristone pharmacology, Pancreatic Neoplasms drug therapy, Pancreatic Neoplasms genetics, Receptors, Glucocorticoid metabolism, Transforming Growth Factor alpha pharmacology, Xenograft Model Antitumor Assays, Adenocarcinoma pathology, Carcinoma, Pancreatic Ductal pathology, Dexamethasone pharmacology, Hydrocortisone pharmacology, Pancreatic Neoplasms pathology
- Abstract
A new human pancreatic cancer (HPAC) cell line was established from a nude mouse xenograft (CAP) of a primary human pancreatic ductal adenocarcinoma. In culture, HPAC cells form monolayers of morphologically heterogenous, polar epithelial cells, which synthesize carcinoembryonic antigen, CA 19-9, CA-125, cytokeratins, antigens for DU-PAN-2, HMFG1, and AUA1, but do not express chromogranin A or vimentin indicative of their pancreatic ductal epithelial cell character. In the presence of serum, HPAC cell DNA synthesis was stimulated by insulin, insulin growth factor-I, epidermal growth factor, and TGF-α but inhibited by physiologic concentrations of hydrocortisone and dexamethasone. Dose-dependent inhibition of DNA synthesis was limited to steroids with glucocorticoid activity. The inhibitory effect of dexamethasone was abolished by the glucocorticoid antagonist RU 384862 Binding of [3H] dexamethasone to cytosolic proteins was specific and saturable at 4 degrees C. Scatchard analysis of binding data demonstrated a single class of high-affinity binding sites (K(d) = 3.8 ± 0.9 nM; B(max) = 523 ± 128 fmol/mg protein). Western blot analysis revealed a major protein band that migrated at a M(r) of 96 kDa. Northern blot analysis identified an mRNA of approximately 7 kilobases which hybridized with a specific glucocorticoid receptor complementary-DNA probe (OB7). These findings support a role for glucocorticoids in the regulation of human malignant pancreatic cell function.
- Published
- 1994
- Full Text
- View/download PDF
26. Direct stochastic theory of muon spin relaxation in a model for trans-polyacetylene.
- Author
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Risch R and Kehr KW
- Published
- 1992
- Full Text
- View/download PDF
27. Role of receptor internalization in insulin signalling.
- Author
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Frost SC and Risch R
- Subjects
- Animals, Biological Transport physiology, Glucose metabolism, Potassium metabolism, Endocytosis physiology, Receptor, Insulin physiology, Signal Transduction physiology
- Published
- 1991
- Full Text
- View/download PDF
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