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Metabolic signatures of Arabidopsis thaliana abiotic stress responses elucidate patterns in stress priming,acclimation,and recovery

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stress Biology 2022年第1期2卷 550-565页

作者： Yuan Xu Dana M.Freund Adrian D.Hegeman Jerry D.cohen Department of Horticultural science and the Microbial and Plant Genomics Institute University of MinnesotaMNSaint PaulUSA Department of Plant and Microbial Biology University of MinnesotaMNSaint PaulUSA

Temperature,water,and light are three abiotic stress factors that have major influences on plant growth,development,and *** can be primed by a prior mild stress to enhance their resistance to future *** used an untargeted metabolomics approach to examine Arabidopsis thaliana 11-day-old seedling’s abiotic stress responses including heat(with and without priming),cold(with and without priming),water-deficit and high-light before and after a 2-day-recovery *** of the physiological phenotypes showed that seedlings with stress treatment resulted in a reduction in fresh weight,hypocotyl and root length but remained *** stress responsive metabolites were identified,confirmed with reference standards,quantified,and *** identified shared and specific stress signatures for cold,heat,water-deficit,and high-light *** metabolism including amino acid metabolism,sugar metabolism,glycolysis,TCA cycle,GABA shunt,glutathione metabolism,purine metabolism,and urea cycle were found to undergo changes that are fundamentally different,although some shared commonalities in response to different *** increases in cysteine abundance and decreases in reduced glutathione were observed following multiple stress treatments highlighting the importance of oxidative stress as a general phenomenon in abiotic *** fold increases in low-turnover amino acids and maltose demonstrate the critical role of protein and starch autolysis in early abiotic stress responses.

关键词： Abiotic stress Arabidopsis thaliana LC-HRMs Metabolomics Plant stress acclimation Priming Recovery

Increasing Water Use Efficiency in Husk Tomato (<i>Physalis ixocarpa</i>Brot) Production in Tabasco, Mexico with Improved Irrigation Water Management

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Journal of Water Resource and Protection 2014年第13期6卷 1248-1258页

作者： Rutilo López-López Ignacio sánchez cohen Marco Antonio InzunzaIbarra Andrés Fierro álvarez Gerardo Esquivel Arriaga National Institute of Forestry Agriculture and Livestock Research (INIFAP) Huimanguillo México National Center for Disciplinary Research in soil Water Plant and Atmosphere Relationships (CENID RASPA) INIFAP Gómez Palacio México Metropolitan Autonomous University Unidad Xochimilco Mexico City México

Husk tomato production technology was developed utilizing plastic sheeting and drip irrigation based on the results of reference evapotranspiration and crop coefficients (Kc) proposed at different phenological stages. The objectives of this study were as follows: 1) to evaluate the effect of plastic sheeting on the yield of husk tomato fruit with drip irrigation based on crop evapotranspiration;2) to validate the use of drip irrigation technology and plastic sheeting in husk tomato production using demonstration plots;and 3) to determine the profitability and economic viability of the product in the domestic market. The proposed Kc values were 0.25, 0.71 and 0.56 in the initial, intermediate and final stage of crop development, respectively. Irrigation rates ranged from 2.5 to 6 mm·day-1, which was equivalent to an irrigation time of 0.6 to 2.5 hr. soil moisture tension was monitored with tensiometers at depths of 15 and 30 cm in a loamy eutricfluvisol. The use of plastic sheeting increased husk tomato yield by 56.2% and water productivity by 63.5% under drip irrigation conditions when basing irrigation levels on crop evapotranspiration. soil matrix potential varied between depths of 15 and 30 cm based on irrigation or rainfall amounts and the use of plastic sheeting with values being higher when the plastic sheeting was used. The husk tomato fruit yield in validation plots was 46 and 54.6 t·ha-1 with water use efficiencies ranging from 16.1 to 19.1 kg·m-3. These results exceeded the national average of 14 t·ha-1 and water use efficiency of 2.54 kg·m-3. With this new technology, a cost benefit ratio of 3.6 is obtained, which represents an economically profitable margin for farmers in the region.

关键词： Drip Irrigation Plastic sheeting Water Productivity Profitability

Establishing an integrated gastroenterology service between a medical center and the community

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World Journal of Gastroenterology 2015年第7期21卷 2152-2158页

作者： Yaron Niv Ram Dickman Zohar Levi Gadi Neumann Dorit Ehrlich Haim Bitterman Jacob Dreiher Arnon cohen Doron Comaneshter Eyran Halpern Rabin Medical Center Clalit Health Services Tel Aviv University Dan-Petach Tikva District Clalit Health Services General Management Clalit Health Services

AIM:To combine community and hospital services inorder to enable improvements in patient management,an integrated gastroenterology service(IGs)was ***:Referral patterns to specialist clinics were optimized;open access route for endoscopic procedures(including esophago-gastro-duodenoscopy,sigmoidoscopy and colonoscopy)was established;family physicians’knowledge and confidence were enhanced;direct communication lines between experts and primary care physicians were *** education,guidelines and agreed instructions for referral were promoted by the *** quality indicators were developed by the Delphi method,rigorously designed and regularly *** was assessed by comparing 2010,2011 and 2012 ***:An integrated delivery system in a specific medical field may provide a solution to a fragmented healthcare system impaired by a lack of *** this paper we describe a new integrated gastroenterology service established in April *** time for procedures decreased:3 mo in April 30th 2010 to 3 wk in April 30th 2011and stayed between 1-3 wk till December 30th *** cost for patient’s visit decreased from 691 to638 NIs(a decrease of 7.6%).six health indicators were improved significantly comparing 2010 to 2012,2.5%to 67.5%:Bone densitometry for patients with inflammatory bowel disease,preventive medications for high risk patients on aspirin/NsAIDs,colonoscopy following positive fecal occult blood test,gastroscopy in Barrett’s esophagus,documentation of family history of colorectal cancer,and colonoscopy in patients with a family history of colorectal ***:Establishment of an IGs was found to effectively improve quality of care,while being costeffective.

关键词： Gastroenterology Direct referral Endoscopy Communi

The Role of Clouds in Global Radiation Changes Measured in Israel during the Last sixty Years

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American Journal of Climate Change 2019年第1期8卷 61-76页

作者： Indira Paudel shabtai cohen Gerald stanhill Department of Environmental Physics and Irrigation Institute of Soil Water and Environmental Sciences Rishon Le Zion Israel Department of Forestry and Natural Resources Purdue University IN USA

An analysis of global radiation measurements and fractional cloud cover observations made in the Israel Meteorological service’s network of climate stations demonstrated a significant decrease in the transmittance of solar radiation through the atmosphere during the last 60 years. The major cause was the reduced transparency of clouds. Under completely overcast skies with complete cloud cover transmission in the industrialized central coastal region decreased from 0.41 in the mid-20th century to 0.21 in the first decade of the 21st century. Under cloudless skies the reduction in the transmission of global radiation was less, from 0.79 to 0.71, and not statistically significant. similar but somewhat smaller changes were observed in the less industrialized central hill region. Multi-linear analysis showed that since 1970, 61% of the measured decline in global radiation was attributable to changes in fractional cloud cover but only 2% to the marked increase in local fuel combustion;there was no statistically significant interaction between the two parameters.

关键词： Cloud Transmission Fractional Cloud Cover Dimming and Brightening Direct and Indirect Aerosol Effects Fossil Fuel Combustion

Learning Mandarin in Later Life:Can Old Dogs Learn New Tricks?

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当代外语研究 2013年第12期 5-14页

作者： ANDREW D.cohen PING LI University of Minnesota Beijing University of Posts and Telecommunications

This case study reports on a native English speaker's learning of Mandarin as a 13th language starting at the age *** learner,after completing a 150-hour,3-DVD course called Fluenz Mandarin,had 70online sessions with a Chinese-language instructor from a Beijing-based *** learning content focused mainly on pinyin,a Romanization system for the pronunciation of standard *** sessions contained real-life communication in Chinese based on Chinese sentences produced beforehand by the learner consistent with his life experiences and professional interests as an applied *** the sessions,the instructor developed the sentences into formulated language and kept a detailed log with the learner's feedback as ***,the learner created electronic flashcards for words and phrases to *** paper considers the impact of advanced age,hyperpolyglot status,and the use of a sophisticated language strategy repertoire on Mandarin *** paper reports on the learner's results as viewed from the vantage point of the learner and from that of his instructor as well,paying particular attention to vocabulary(e.g.,the use of measure words and the overabundance of homonyms and near homonyms),grammar(e.g.,word order),and pronunciation(e.g.,the perception and production of the four tones).

关键词：英语学习学习方法阅读知识阅读材料

The Natural History and Treatment Guidelines of Cerebellar Liponeurocytoma—A Case Report

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Open Journal of Modern Neurosurgery 2011年第2期1卷 10-16页

作者： Or cohen-Inbar Euvgeni Vlodavsky Menashe Zaaroor 不详

Background and Importance: Lipomatous medulloblastoma (cerebellar liponeurocytoma) is a rare cerebellar tumor, with only twenty-nine cases reported, considered a distinct variant of medulloblastoma. The few cases described support an indolent nature for this tumor. We aim at defining the optimum treatment strategy and long-term behavior for this tumor entity. Clinical presentation: A 74 years old male presented on september 2010 complaining of mild dizziness and headache slowly progressing over a few months. This gentleman was operated on at our department some 18 years ago for a right cerebellar hemispheral lesion, defined as a liponeurocytoma. This patient received no adjuvant treatment. Current magnetic resonance imaging (MRI) studies disclosed a right hemispheral cerebellar mass, locally recurrent in the original surgical tumor bed. Gross total resection of the tumor was accomplished through a suboccipital craniotomy, with complete resection of the lesion. The histopathological diagnosis was defined as cerebellar liponeurocytoma. No adjuvant therapy was given as initially, after the first operation. Currently, the patient is alive, fully alert with minimal neurological deficits, Barthel index 90, Kernofsky performance status of 90 and with no evidence of disease on neuroimaging. Conclusion: This patient portrays this tumor’s natural history after surgical intervention with no adjuvant treatment, being the longest reported follow-up and recurrence. This distinct variant of medulloblastoma appears to have a uniquely favorable prognosis, even without adjuvant therapy. A complete surgical resection with close follow-up seems both sufficient and prudent.

关键词： Natural History Cerebellar Liponeurocytoma Recurrence in 18 Years

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欲望的艺术介质

缤纷 2009年第8期 30-31页

作者：张密 cohen.s 北京意中工作室

那些社会现实中存在的关于欲望的角落被艺术家发掘,以视觉艺术的方式呈现出来,它们在视像的背后揭示出混杂于当代文化中的那部分被避讳屏蔽掉的社会现实。近期,麦勒画廊和意中工作室展出的作品,都不约而同的展现了这一主题。

关键词：先锋派具象拾得物三维形状强健身体元性城市空间物质属性 sabina 孟道

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思辩带来的机遇

缤纷 2009年第10期 32-33页

作者：张密 s. cohen

不同轨迹的思想交错时释放出最大的能量,这种思维轨迹间的交错是有趣的,它能忽略距离,穿越时间和语言的局限,生发出共通的认知经验。这种集个体经验和群体共性于一体的思辩力量。

关键词：穿越时间个体经验产品设计原创设计认知经验世界设计外在形态个体情感设计工作室起点位置

Imaging and review of a large pre-auricular pilomatrixoma in a child

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World Journal of Radiology 2012年第5期4卷 228-230页

作者： Kenneth R Whittemore Michael cohen Department of Otolaryngology and Communications Enhancement Children's Hospital Boston Boston MA 02115 United States Department of Otology and Laryngology Harvard Medical School Children's Hospital Boston Boston MA 02115 United States Department of Otolaryngology Boston University Medical Center Boston MA 02118 United States

A 10-year-old girl presented with a mildly tender mass in the right preauricular region. The mass became larger, and the overlying skin turned purple. There was no clinical response to a course of either cephalexin or clarithromycin. The remainder of the head and neck examination was normal including normal facial nerve function. Lyme titers and a computed tomographic (CT) scan with contrast of the facial region were obtained. The CT scan demonstrated the lesion to be superficial to the parotid gland. The lyme titer was elevated and doxycycline was begun. The mass appeared to reduce in size after doxycycline treatment, but then grew and turned erythematous. The lesion was surgically excised and was vascular with calcification and cheesy inclusions. The mass was quite close to the skin and the clinical diagnosis at the time of surgery was a pilomatrixoma, which was corroborated on pathological evaluation.

关键词： Pilomatrixoma Pediatrics Head and neck Otolaryngology