8 research outputs found
How photographs can be a complement to herbarium specimens. A proposal of standardization
No full textConferencia impartida en el Department of National Natural History Collection of the Hebrew University of Jerusalem por Jordi López Pujol el 5 de febrero de 2020, por invitación de Neta Manela, Scientitic Manager del Israel National Herbarium
The Wilsonian Moment and the Origins of the Postcolonial World
No full textThe University Archives has determined that this item is of continuing value to OSU's history.The media can be accessed here: http://streaming.osu.edu/knowledgebank/mershon07/100507.mp4Manela is the author of The Wilsonian Moment: Self-Determination and the International Origins of Anticolonial Nationalism (Oxford University Press, 2007). The book explains how perceptions of Woodrow Wilson and his rhetoric of self-determination shaped the goals and dynamics of the anti-colonial revolts that erupted in Egypt, India, China, and Korea during the spring of 1919.Ohio State University. Mershon Center for International Security StudiesWebpage announcement; video; photo
Metabolite profiling and transcript analysis reveal specificities in the response of a berry derived cell culture to abiotic stresses
No full textThe Association of Arable Weeds with Modern Wild Cereal Habitats: Implications for Reconstructing the Origins of Plant Cultivation in the Levant
No full textThe association of arable weeds with modern wild cereal habitats: implications for reconstructing the origins of plant cultivation in the Levant
No full textReconstructing the origins of plant cultivation in southwest Asia is crucial for understanding associated processes such as the emergence of sedentary communities and domesticated crops. Among the criteria archaeobotanists developed for identifying the earliest plant cultivation, the presence of potential arable weeds found in association with wild cereal and legume remains has been used as a basis for supporting models of prolonged wild plant cultivation before domesticated crops appear. However, the proposed weed floras mainly consist of genus-level identifications that do not differentiate between arable weeds and related species that characterise non-arable habitats. Here we test, for the first time, whether the potential arable weed taxa widely used to identify wild plant cultivation also occur in non-cultivated wild cereal populations. Based on modern survey data from the southern Levant we show that the proposed weed taxa characterise both grasslands and fields. Our findings, therefore, do not support the use of these taxa for reconstructing early cultivation. Instead, for future studies we suggest an approach based on the analysis of plant functional traits related to major agroecological variables such as fertility and disturbance, which has the potential to overcome some of the methodological problems
The Role of Coping Humour in the Physical and Mental Health of Older Adults
No full textObjectives - This study examined the associations among coping humor, other personal/social factors, and the health status of community-dwelling older adults. Method - Survey questionnaires were completed with 73 community dwelling older adults. Included were measures of coping humor, spirituality, self-efficacy, social support and physical and mental health status. Results - Correlations across all variables showed coping humor to be significantly associated with social support, self-efficacy, depression, and anxiety. Forward stepwise regression analyses showed that coping humor and self-efficacy contributed to outcome variance in measures of mental health status. Contrary to expectation, neither social support nor spirituality contributed to the total outcome variance on any of the dependant measures. Conclusion - The importance of spirituality, self-efficacy and social support in determining the quality of life of older adults is well supported in the literature. Coping humor as a mechanism for managing the inevitable health stresses of aging has received less attention. This study shows that coping humor and self efficacy are important factors for explaining health status in older adults. Correlations among coping humor, self efficacy, and social support suggest that a sense of humor may play an important role in reinforcing self-efficacious approaches to the management of health issues.coping humor, aging, health status
Phenylalanine and tyrosine levels are rate-limiting factors in production of health promoting metabolites in Vitis vinifera cv. Gamay Red cell suspension
No full textEnvironmental stresses such as high light intensity and temperature cause induction of the shikimate pathway, aromatic amino acids (AAA) pathways, and of pathways downstream from AAAs. The induction leads to production of specialized metabolites that protect the cells from oxidative damage. The regulation of the diverse AAA derived pathways is still not well understood. To gain insight on that regulation, we increased AAA production in red grape Vitis vinifera cv. Gamay Red cell suspension, without inducing external stress on the cells, and characterized the metabolic effect of this induction. Increased AAA production was achieved by expressing a feedback-insensitive bacterial form of 3-deoxy- D-arabino-heptulosonate 7-phosphate synthase enzyme (AroG*) of the shikimate pathway under a constitutive promoter. The presence of AroG* protein led to elevated levels of primary metabolites in the shikimate and AAA pathways including phenylalanine and tyrosine, and to a dramatic increase in phenylpropanoids. The AroG* transformed lines accumulated up to 20 and 150 fold higher levels of resveratrol and dihydroquercetin, respectively. Quercetin, formed from dihydroquercetin, and resveratrol, are health promoting metabolites that are induced due to environmental stresses. Testing the expression level of key genes along the stilbenoids, benzenoids and phenylpropanoid pathways showed that transcription was not affected by AroG*. This suggests that concentrations of AAAs, and of phenylalanine in particular, are rate-limiting in production of these metabolites. In contrast, increased phenylalanine production did not lead to elevated concentrations of anthocyanins, even though they are also phenylpropanoid metabolites. This suggests a control mechanism of this pathway that is independent of AAA concentration. Interestingly, total anthocyanin concentrations were slightly lower in AroG* cells, and the relative frequencies of the different anthocyanins changed as well
Enumeration in Alzheimer's disease and other late life psychiatric syndromes
No full textPrevious studies suggest that visual enumeration is spared in normal aging but impaired in abnormal aging (late stage Alzheimer's disease, AD), raising the task's potential as a marker of dementia. Experiment 1 compared speeded enumeration of 1–9 random dots in early stage AD, vascular dementia (VAD), depression, and age-matched controls. Previous deficits were replicated but they were not specific to AD, with the rate of counting larger numerosities similarly slowed relative to controls by both AD and VAD. Determination of subitizing span was complicated by the surprisingly slower enumeration of one than of two items, especially in AD patients. Experiment 2 showed that AD patients’ relative difficulty with one item persisted with further practice and extended to the enumeration of targets among distractors. However, it was abolished when pattern recognition was possible (enumerating dots on a die). Although an enumeration test is unlikely to help differentiate early AD from other common dementias, the unexpected pattern of patients’ performance challenges current models of enumeration and requires further investigation
