18 results for “cold stress”

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Research ArticleOpen accessEvery word in the titleThe Effect of Corner Radii and Part Orientation on Stress Distribution of Cold Forging DieAhmad Baharuddin Abdullah, Kam Shwu Ling, Zahurin SamadOne of the most critical problems in cold forging is the huge stresses generated from the deformation of metal leads to die failure. The distribution of stresses mainly depends on geometry of the die. An approach to optimal design in cold forging die geometry and orientation are presented in this paper. The impression cold forging dies of the Universal joint … …American Journal of Applied Sciences, Vol. 5, Issue 4 · 30 Apr 2008 · 7,338 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsGastroprotective Effects of β-sitosterol and β-sitosterol-3-O-β-D-glucopyranoside from Bridelia ferruginea Stem BarkEjike Marcellus Nnamani, Peter Achunike Akah, Charles Ogbonnaya Okoli et al.The methanol extract of Bridelia ferruginea Benth. (Euphorbiaceae) stem bark (BFME) was partitioned in chloroform-methanol-water (2:2:1) mixture to obtain the Chloroform (CF) and Aqueous Methanol (AMF) fractions. The BFME, CF and AMF were screened for antiulcer activity using indomethacin-induced ulcer as activity guide. The CF provided the highest gastroprotection and was subsequently fractionated in a silica gel (60-200 mesh) column … …American Journal of Pharmacology and Toxicology, Vol. 15, Issue 1 · 4 Jan 2021 · 7,784 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsOligoglucans as Elicitors of an Enzymatic Antioxidant System in Zucchini Squash (Cucurbita pepo L.) Seedlings at Low TemperatureAbel Ceron-Garcia, Gustavo Adolfo Gonzalez-Aguilar, Irasema Vargas-Arispuro et al.Abstract: Problem statement: Non-controlled low temperatures affect physiological and biochemical processes leading to Reactive Oxygen Species (ROS) accumulation in plants, which normally are stabilized by the antioxidant system. Superoxide Dismutase (SOD), Ascorbate Peroxidase (APX) and Catalase (CAT) are the most important ROS-detoxification enzymes in stressed plants. Approach: The activity of these enzymes were examined in response to fungal Oligoglucans (OG) … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 1 · 15 Dec 2010 · 8,306 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsCytoprotective Effect of UlGen, a Polyherbal Formulation against Physical and Chemical Factor Induced Gastric Ulcers in Wister Albino RatsT. S. Muralidhar, Anna Balaji, Chinmay Bandopadhyay, S. L. ShanthaProblem statement: UlGen, a Polyherbal formulation, was investigated for its possible Ulcero-protective activity in ulcerogen and Cold-restraint stress induced Wister rats (Rattus rattus). Oral administration of UlGen, at a dose of 800 mg kg-1 significantly protected the onset of cold-resistance stress induced ulcerations. Approach: It significantly inhibited gastric ulceration induced by alcohol and aspirin. Control group: Alcohol 80% induced ulcer … …American Journal of Pharmacology and Toxicology, Vol. 4, Issue 3 · 30 Sep 2009 · 8,180 accessesView PDF Cite

Review ArticleOpen accessIn the keywordsThe Influence of Bedding Application in Feedlot Cattle: A ReviewDathan Thomas Smerchek, Zachary Kidd Foster SmithA sizable portion of cattle on feed in the United States are fed in the Upper Midwest and Northern Plains region where temperatures routinely fall below freezing during late fall, winter and early spring. The persistent cold temperatures coupled with snow accumulation, wind, moisture and ice can cause undesirable pen conditions for confined cattle, ultimately resulting in decreased insulative capacity … …American Journal of Animal and Veterinary Sciences, Vol. 16, Issue 1 · 23 Feb 2021 · 6,718 accessesView PDF Cite

Research ArticleOpen accessIn the abstractClimate-Driven Productivity Responses and Implications for Genetic Adaptation and Breeding of Boreal Trees in KazakhstanZhadyra Baigazakova, Kuralay Mazarzhanova, Asset Satayev et al.Kazakhstan’s boreal and forest-steppe forests form the southern ecotonal edge of the West Siberian taiga, where relatively small changes in heat and moisture can trigger disproportionate impacts on tree growth, mortality, and regeneration. Although forests cover only ~4% of Kazakhstan, they provide critical ecosystem services: stabilizing hydrological regimes, buffering microclimates, protecting agricultural lands from wind and water erosion, and supporting … …OnLine Journal of Biological Sciences, Vol. 26, Issue 3 · 10 Aug 2026 · 709 accessesView PDF Cite

Review ArticleOpen accessIn the abstractThe Impact of Di-2-Ethylhexyl Phthalate (DEHP) in Focus on the Reproductive System and Toxicity in Rat or Mammalian ModelVenkataramanaiah Poli, Srinivasulu Reddy MotireddyAbsalan, F., Saremy, S., Mansouri, E., Moghadam, M. T., Moghadam, A. R. E., & Razie, G. (2016). Effects of Mono-(2-Ethylhexyl) Phthalate and Di-(2-Ethylhexyl) Phthalate Administrations on Oocyte Meiotic Maturation, Apoptosis and Gene Quantification in Mouse Model. Cell Journal, 18(4), 503–513. https://doi.org/10.22074/cellj.2016.4717 Acevedo‐Rodriguez, A., Kauffman, A. S., Cherrington, B. D., Borges, C. S., Roepke, T. A., & Laconi, M. (2018). Emerging … …American Journal of Pharmacology and Toxicology, Vol. 19, Issue 1 · 6 Jun 2024 · 12,990 accessesView PDF Cite

Research ArticleOpen accessIn the abstractIn Silico Prediction and Functional Characterization of Genes Related to Abiotic and Biotic Stresses in Chickpea (Cicer arietinum)Sukhdeep Kaur, Satendra Singh, Gitanjali Tandon et al.Chickpea (Cicer arietinum L.) is second largest grown legumes worldwide contributing 75% of total pulse production. It is a cool season legume crop and grown in tropical and subtropical areas. Due to drastic climatic changes, chickpea suffers from many biotic (blight and wilt) and abiotic (salinity, drought, cold) stresses that directly impact the growth and yield. In our study, we … …Current Research in Bioinformatics, Vol. 7, Issue 1 · 25 Sep 2017 · 14,188 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPhysiological and Molecular-Genetic Evaluation of Rice Breeding Resources on Cold Tolerance for Creating New Varieties for the Northern Zone of Rice CultivationYeldos Almabekovich Zhanbyrbayev, Aiman Bokenovna Rysbekova, Bakdaulet Naubaevich Usenbekov et al.This study was aimed at assessing cold tolerance of rice breeding materials produced in Kazakhstan and foreign countries in the phase of seed germination, creating initial cold-tolerant forms and lines to derive Kazakhstan varieties of rice and identifying in the selection material the genes of the quantitative loci of cold tolerance (qPSST-3, qPSST-7 and qPSST-9), based on the molecular-genetic approach. … …OnLine Journal of Biological Sciences, Vol. 17, Issue 3 · 23 Sep 2017 · 7,416 accessesView PDF Cite

Research ArticleOpen accessIn the abstractChronic Mental Stress Induces Reversible Reduction of Natural Killer Cells and CD56dim SubpopulationManar M. IsmailGenerally, studying to be a health care provider is a stressful and demanding field and the students have to face many stressors that may affect their general health status including the immune system. This work aimed at studying the effect of prolonged naturalistic life-stress exposure on the percentage of peripheral blood T-lymphocytes and Natural Killer (NK) cells in female laboratory … …American Journal of Immunology, Vol. 13, Issue 3 · 30 Aug 2017 · 7,792 accessesView PDF Cite