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Chilling requirement

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https://www.readbyqxmd.com/read/29286452/esophageal-heat-transfer-for-patient-temperature-control-and-targeted-temperature-management
#1
Melissa I Naiman, Maria Gray, Joseph Haymore, Ahmed F Hegazy, Andrej Markota, Neeraj Badjatia, Erik B Kulstad
Controlling patient temperature is important for a wide variety of clinical conditions. Cooling to normal or below normal body temperature is often performed for neuroprotection after ischemic insult (e.g. hemorrhagic stroke, subarachnoid hemorrhage, cardiac arrest, or other hypoxic injury). Cooling from febrile states treats fever and reduces the negative effects of hyperthermia on injured neurons. Patients are warmed in the operating room to prevent inadvertent perioperative hypothermia, which is known to cause increased blood loss, wound infections, and myocardial injury, while also prolonging recovery time...
November 21, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29273002/mining-and-expression-analysis-of-candidate-genes-involved-in-regulating-the-chilling-requirement-fulfillment-of-paeonia-lactiflora-hang-baishao
#2
Jiaping Zhang, Danqing Li, Xiaohua Shi, Dong Zhang, Shuai Qiu, Jianfen Wei, Jiao Zhang, Jianghua Zhou, Kaiyuan Zhu, Yiping Xia
BACKGROUND: The artificial enlargement of the planting area and ecological amplitude of ornamentals for horticultural and landscape applications are significant. Herbaceous peony (Paeonia lactiflora Pall.) is a world-famous ornamental with attractive and fragrant flowers and is mainly planted in temperate and cool areas. Comparatively higher winter temperatures in the subtropical and tropical Northern Hemisphere result in a deficit of chilling accumulation for bud dormancy release, which severely hinders "The southward plantation of herbaceous peony"...
December 22, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29226457/investigation-of-in-vitro-measurable-sperm-attributes-and-their-influence-on-electroejaculated-bull-semen-with-a-fixed-time-artificial-insemination-protocol-in-australian-bos-indicus-cattle
#3
N Satake, Saa Edwards, D Tutt, M R McGowan, G B Boe-Hansen
Increasing use of fixed-time artificial insemination (FTAI) in beef cattle production has presented an opportunity for the use of fresh or chilled semen as an alternative to standard cryopreserved semen. The objective of this study was to examine in vitro sperm function and pregnancy rate of electroejaculated semen, chilled and stored for 48 hr, compared to conventionally cryopreserved semen with an optimized FTAI protocol in Brahman cattle. Semen from three Brahman bulls was collected, and aliquots were extended in either chilled (at 5°C) or frozen (LN2 ) in a Tris-egg yolk extender base with 2...
December 11, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29197142/new-insights-on-plant-phenological-response-to-temperature-revealed-from-long-term-widespread-observations-in-china
#4
Haicheng Zhang, Shuguang Liu, Pierre Regnier, Wenping Yuan
Constraints of temperature on spring plant phenology are closely related to plant growth, vegetation dynamics and ecosystem carbon cycle. However, the effects of temperature on leaf onset, especially for winter chilling, are still not well understood. Using long-term, widespread in situ phenology observations collected over China for multiple plant species, this study analyzes the quantitative response of leaf onset to temperature, and compares empirical findings with existing theories and modeling approaches, as implemented in eighteen phenology algorithms...
December 2, 2017: Global Change Biology
https://www.readbyqxmd.com/read/29167584/performance-monitoring-of-chilled-water-distribution-systems-using-hvac-cx
#5
Natascha Milesi Ferretti, Michael A Galler, Steven T Bushby
In this research we develop, test, and demonstrate the newest extension of the software HVAC-Cx (NIST and CSTB 2014), an automated commissioning tool for detecting common mechanical faults and control errors in chilled-water distribution systems (loops). The commissioning process can improve occupant comfort, ensure the persistence of correct system operation, and reduce energy consumption. Automated tools support the process by decreasing the time and the skill level required to carry out necessary quality assurance measures, and as a result they enable more thorough testing of building heating, ventilating, and air-conditioning (HVAC) systems...
2017: ASHRAE Transactions
https://www.readbyqxmd.com/read/29163569/olive-cultivation-in-the-southern-hemisphere-flowering-water-requirements-and-oil-quality-responses-to-new-crop-environments
#6
REVIEW
Mariela Torres, Pierluigi Pierantozzi, Peter Searles, M Cecilia Rousseaux, Georgina García-Inza, Andrea Miserere, Romina Bodoira, Cibeles Contreras, Damián Maestri
Olive (Olea europaea L.) is a crop well adapted to the environmental conditions prevailing in the Mediterranean Basin. Nevertheless, the increasing international demand for olive oil and table olives in the last two decades has led to expansion of olive cultivation in some countries of the southern hemisphere, notably in Argentina, Chile, Perú and Australia. While the percentage of world production represented by these countries is still low, many of the new production regions do not have typical Mediterranean climates, and some are located at subtropical latitudes where there is relatively little information about crop function...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29130765/microbiological-profile-of-three-commercial-poultry-processing-plants-in-colombia
#7
Alejandra Ramírez-Hernández, Andrea Varón-García, Marcos X Sánchez-Plata
Poultry meat production in Colombia has significant growth potential to fulfill national demands and to become an important global exporter. Entering export markets requires compliance with international food safety standards and the support of a rigorous national inspection system. To support the development of national standards, information about the microbiological profiles of poultry operations is needed, and no official microbiological baseline is currently available. A total of 480 chicken carcass rinses and 64 fecal samples were collected at different process sites from three commercial poultry processing establishments located in different regions of Colombia...
December 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/29098192/forgotten-perinephric-drain-anchored-in-the-tissues-lessons-to-be-learned
#8
Prashant Kumar, Rishi Nayyar
Background: Drainage of any deep seated abscess often requires placement of catheters along with other conservative measures. These catheters are removed when the drainage volume reduces to clinically insignificant levels. However, if left in situ, there are potential complications. One such complication necessitating additional surgical procedure is highlighted in this case report. Malecot's catheter and children may be more at risk for such a complication. Case Presentation: A 7-year-old girl presented with recurrent episodes of right flank pain associated with high-grade fever with chills for the last 5 months and right perinephric drain in situ...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29075480/control-of-nematodirus-spp-infection-by-sheep-flock-owners-in-northern-ireland
#9
Connor McMahon, Hillary W J Edgar, Jason P Barley, Robert E B Hanna, Gerard P Brennan, Ian Fairweather
BACKGROUND: To address a lack of information on the control of ovine helminth parasites in Northern Ireland (NI), a number of research projects have been undertaken, dealing with gastrointestinal nematodes, tapeworms and liver fluke. This investigation concerns Nematodirus and concentrates on three aspects of disease: farm management strategies for its control, derived from the results of a Questionnaire; the efficacy of treatment used by farmers, as determined by a coprological survey; and the hatching requirements of Nematodirus eggs, that is, whether prolonged chilling is a pre-requisite for hatching...
2017: Irish Veterinary Journal
https://www.readbyqxmd.com/read/29055157/simulating-the-onset-of-spring-vegetation-growth-across-the-northern-hemisphere
#10
Qiang Liu, Yongshuo H Fu, Yongwen Liu, Ivan A Janssens, Shilong Piao
Changes in the spring onset of vegetation growth in response to climate change can profoundly impact climate-biosphere interactions. Thus, robust simulation of spring onset is essential to accurately predict ecosystem responses and feedback to ongoing climate change. To date, the ability of vegetation phenology models to reproduce spatiotemporal patterns of spring onset at larger scales has not been thoroughly investigated. In this study, we took advantage of phenology observations via remote sensing to calibrate and evaluated six models, including both one-phase (considering only forcing temperatures) and two-phase (involving forcing, chilling, and photoperiod) models across the Northern Hemisphere between 1982 and 2012...
October 21, 2017: Global Change Biology
https://www.readbyqxmd.com/read/29050419/successful-chilling-of-red-legged-partridge-alectoris-rufa-sperm-for-use-in-artificial-insemination
#11
J Santiago-Moreno, C Castaño, A Toledano-Díaz, M C Esteso, A López-Sebastián, S Villaverde-Morcillo, S G Dávila, M G Gil, E Blesbois
The fertilizing capacity of pure, fresh avian semen may disappear in just half an hour, hindering its successful use in artificial insemination (AI) projects. Longer storage requires the use of infra-physiological temperatures and of semen diluents that help preserve the spermatozoa but that do not interfere with their fertilizing capacity. This study examines the effect on sperm quality of storing red-legged partridge sperm for 3 h at 5°C with 2 different semen extenders: 1) a medium referred to as L&R-84, composed of sodium glutamate, glucose, magnesium acetate, potassium acetate, and polyvinylpyrrolidone, and 2) Lake 7...
September 1, 2017: Poultry Science
https://www.readbyqxmd.com/read/29046494/a-user-centred-design-process-of-new-cold-protective-clothing-for-offshore-petroleum-workers-operating-in-the-barents-sea
#12
Ole Petter Naesgaard, Tore Christian Bjørsvik Storholmen, Øystein Nordrum Wiggen, Jarl Reitan
OBJECTIVE: Petroleum operations in the Barents Sea require personal protective clothing (PPC) to ensure the safety and performance of the workers. This paper describes the accomplishment of a user-centred design process of new PPC for offshore workers operating in this area. METHODS: The user-centred design process was accomplished by mixed-methods. Insights into user needs and context of use were established by group interviews and on-the-job observations during a field-trip...
October 17, 2017: Industrial Health
https://www.readbyqxmd.com/read/28988021/two-concurrent-appendiceal-neoplasms-in-an-elderly-patient-a-case-report
#13
Riva Das, Joshua P Cantor, Thai Q Vu
INTRODUCTION: Acute appendicitis, one of the commonest surgical diagnoses, is rare and more complex presentation in the elderly. Physicians must consider atypical causes appendicitis in this population, which could affect the management of the patient. PRESENTATION OF CASE: An elderly female presented with a two-day history of lower abdominal pain, associated with low-grade fevers and chills. Studies showed leukocytosis and computed tomography (CT) findings consistent with appendicitis...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28987773/effects-of-temperature-soil-moisture-and-photoperiod-on-diapause-termination-and-post-diapause-development-of-the-wheat-blossom-midge-sitodiplosis-mosellana-g%C3%A3-hin-diptera-cecidomyiidae
#14
Weining Cheng, Zhiren Long, Yudong Zhang, Tingting Liang, Keyan Zhu-Salzman
Sitodiplosis mosellana, one of the most important wheat pests, goes through larval diapause in a cocooned form. It is univoltine, but some individuals exhibit prolonged diapause. In this study, we documented diapause termination rate of cocooned larvae at different diapausing periods and time required for adult emergence when they were brought to 25°C from the field in northern China. We found that field larvae all entered diapause by June, but none terminated diapause until late September when the daily average temperature dropped to below 20°C...
October 4, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28980497/the-clinical-effects-of-the-venomous-lessepsian-migrant-fish-plotosus-lineatus-thunberg-1787-in-the-southeastern-mediterranean-sea
#15
Yedidia Bentur, Sergey Altunin, Iris Levdov, Daniel Golani, Ehud Spanier, Dor Edelist, Yael Lurie
CONTEXT: Plotosus lineatus is a venomous fish that has migrated from the Indo-Pacific region to the Mediterranean Sea (Lessepsian migrant). Its presence in the Mediterranean Sea was first recorded in 2002 and was observed in growing schools. Its spines contain toxins with lytic, hemolytic and edematous activities. OBJECTIVE: To characterize the injuries caused by Plotosus lineatus in the Southeastern Mediterranean Sea. METHODS: A prospective observational case series of consultations provided by a national Poison Center pertaining to Plotosus lineatus from 2007 to 2016...
October 5, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28961978/cold-tolerance-of-mountain-pine-beetle-coleoptera-curculionidae-eggs-from-the-historic-and-expanded-ranges
#16
K P Bleiker, G D Smith, L M Humble
Winter mortality is expected to be a key factor determining the ability of mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae), to expand its range in Canada. We determined the mortality rate and supercooling points of eggs from the beetle's historic range in southern British Columbia as well as the recently expanded range in north-central Alberta and tested if eggs require an extended period of chilling to reach their maximum cold tolerance. We found no effect of population source or acclimation time on egg cold tolerance...
October 1, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28893508/regulation-of-protein-phosphatase-2a-during-embryonic-diapause-process-in-the-silkworm-bombyx-mori
#17
Shi-Hong Gu, Hsiao-Yen Hsieh, Pei-Ling Lin
Regulation of protein phosphorylation requires coordinated interactions between protein kinases and protein phosphatases. In the present study, we investigated regulation of protein phosphatase 2A (PP2A) during the embryonic diapause process of B. mori. An immunoblotting analysis showed that Bombyx eggs contained a catalytic C subunit, a major regulatory B subunit (B55/PR55 subunit), and a structural A subunit, with the A and B subunits undergoing differential changes between diapause and non-diapause eggs during embryonic process...
September 8, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28861091/insufficient-chilling-effects-vary-among-boreal-tree-species-and-chilling-duration
#18
Rongzhou Man, Pengxin Lu, Qing-Lai Dang
Insufficient chilling resulting from rising winter temperatures associated with climate warming has been an area of particular interest in boreal and temperate regions where a period of cool temperatures in fall and winter is required to break plant dormancy. In this study, we examined the budburst and growth of trembling aspen (Populus tremuloides Michx.), balsam poplar (Populus balsamifera L.), white birch (Betula papyrifera Marsh.), black spruce (Picea mariana (Mill.) B.S.P.), white spruce (Picea glauca (Moench) Voss), jack pine (Pinus banksiana Lamb...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28828598/humidity-does-not-appear-to-trigger-leaf-out-in-woody-plants
#19
Lucy Zipf, Richard B Primack
In order to anticipate the ecological impacts of climate change and model changes to forests, it is important to understand the factors controlling spring leaf out. Leaf out phenology in woody trees and shrubs is generally considered to be strongly controlled by a combination of spring warming, winter chilling requirement, and photoperiod. However, researchers have recently suggested that temperature-related air humidity, rather than temperature itself, might be the main trigger of the spring leaf-out of woody plants...
August 21, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28817647/caprine-brucellosis-a-historically-neglected-disease-with-significant-impact-on-public-health
#20
REVIEW
Carlos A Rossetti, Angela M Arenas-Gamboa, Estefanía Maurizio
Caprine brucellosis is a chronic infectious disease caused by the gram-negative cocci-bacillus Brucella melitensis. Middle- to late-term abortion, stillbirths, and the delivery of weak offspring are the characteristic clinical signs of the disease that is associated with an extensive negative impact in a flock's productivity. B. melitensis is also the most virulent Brucella species for humans, responsible for a severely debilitating and disabling illness that results in high morbidity with intermittent fever, chills, sweats, weakness, myalgia, abortion, osteoarticular complications, endocarditis, depression, anorexia, and low mortality...
August 2017: PLoS Neglected Tropical Diseases
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