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https://www.readbyqxmd.com/read/28340058/predictive-modeling-for-monitoring-egg-freshness-during-variable-temperature-storage-conditions
#1
S M Yimenu, J Y Kim, J Koo, B S Kim
The overall aim of this research was to develop egg freshness prediction models in terms of selected quality indices. Six experiments (4 constant temperatures and 2 variable temperatures) were carried out on hen eggs for a total period of 10, 21, 26, 13, and 105 d at storage temperatures of 30, 20, 20 to 10, 30 to 10, and 5 and 10°C, to observe trends in the relative weight loss (RWL), Haugh unit (HU), yolk index (YI), albumin index (AI), yolk pH, and albumin pH. The results showed that there was an increasing trend in the RWL and a decreasing trend in the YI, AI, and HU for all temperature conditions...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339976/effects-of-two-different-broiler-flooring-systems-on-production-performances-welfare-and-environment-under-commercial-production-conditions
#2
H Li, X Wen, R Alphin, Z Zhu, Z Zhou
Research comparing conventional litter and alternative perforated flooring (netting) systems is relatively limited under commercial production conditions. A comprehensive comparison of broiler production performances, welfare quality, and housing environment of two broiler houses with conventional litter and new perforated plastic floors was conducted over four flocks for eight months in eastern China. The two broiler houses each had 31,700 broilers per flock on average and were ventilated using a negative-pressure system...
March 3, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339377/stability-of-clindamycin-hydrochloride-in-pcca-base-suspendit
#3
Yashoda V Pramar, Richard A Graves, Grace A Ledet, Kelly V Phan, Levon A Bostanian, Tarun K Mandal
Clindamycin is an effective antibiotic in the treatment of infections caused by certain gram-positive and gram-negative anaerobic microorganisms. While manufactured forms of the drug for pediatric use are available, there are instances when a compounded liquid dosage form is essential to meet unique patient needs. The purpose of this study was to determine the chemical stability of clindamycin hydrochloride in the PCCA base SuspendIt, a sugar-free, paraben- free, dye-free, and gluten-free thixotropic vehicle containing a natural sweetener obtained from the monk fruit...
September 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28339205/ultrafast-non-f%C3%A3-rster-intramolecular-donor-acceptor-excitation-energy-transfer
#4
Stavros Athanasopoulos, Laura Alfonso Hernández, David Beljonne, Sebastian Fernandez-Alberti, Sergei Tretiak
Ultrafast intramolecular electronic energy transfer in a conjugated donor-acceptor system is simulated using non-adiabatic excited-state molecular dynamics. After initial site selective photoexcitation of the donor, transition density localization is monitored throughout the S2→S1 internal conversion process revealing an efficient unidirectional donor→acceptor energy transfer process. Detailed analysis of the excited state trajectories uncovers several salient features of the energy transfer dynamics. While a weak temperature dependence is observed during the entire electronic energy relaxation, an ultrafast initially temperature independent process allows the molecular system to approach the S2-S1 potential energy crossing seam within the first ten femtoseconds...
March 24, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28338635/a-formaldehyde-sensor-based-on-molecularly-imprinted-polymer-on-a-tio%C3%A2-nanotube-array
#5
Xiaohui Tang, Jean-Pierre Raskin, Driss Lahem, Arnaud Krumpmann, André Decroly, Marc Debliquy
Today, significant attention has been brought to the development of sensitive, specific, cheap, and reliable sensors for real-time monitoring. Molecular imprinting technology is a versatile and promising technology for practical applications in many areas, particularly chemical sensors. Here, we present a chemical sensor for detecting formaldehyde, a toxic common indoor pollutant gas. Polypyrrole-based molecularly-imprinted polymer (PPy-based MIP) is employed as the sensing recognition layer and synthesized on a titanium dioxide nanotube array (TiO₂-NTA) for increasing its surface-to-volume ratio, thereby improving the sensor performance...
March 24, 2017: Sensors
https://www.readbyqxmd.com/read/28337908/detection-of-2-4-6-trinitrotoluene-using-a-miniaturized-disposable-electrochemical-sensor-with-an-ionic-liquid-gel-polymer-electrolyte-film
#6
Holly A Yu, Junqiao Lee, Simon W Lewis, Debbie Sue Silvester
A new electrochemical method to detect and quantify the explosive compound 2,4,6-trinitrotoluene (TNT) in aqueous solutions is demonstrated. A disposable thin-film electrode modified with a droplet of a gel-polymer electrolyte (GPE) was immersed directly into samples of TNT at concentrations of 1-10 μg/mL. The GPE contained the hydrophobic room temperature ionic liquid (RTIL) trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide ([P14,6,6,6][NTf2]) and the polymer poly(hexyl methacrylate) (PHMA)...
March 24, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28337897/exhaled-breath-temperature-measurement-influence-of-circadian-rhythm
#7
G E Carpagnano, D Lacedonia, M Malerba, D Martinelli, G Cotugno, M P Foschino-Barbaro
Exhaled breath temperature (EBT) is an expression of airway inflammation, an event that drives several lung diseases. The measurement of the exhaled breath temperature has recently been proposed as a popular tool in the diagnosis and monitoring of inflammatory lung diseases due to the fact that it is a non-invasive method. The influence of external factors on EBT, its reproducibility, and its sensitivity to treatment have already been explored. However, to reach clinical practice, EBT requires a complete validation that is still lacking...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337283/intracoronary-hypothermia-for-acute-myocardial-infarction-in-the-isolated-beating-pig-heart
#8
Luuk C Otterspoor, Lokien X van Nunen, Tilaï T Rosalina, Marcel Van't Veer, Sjoerd Van Tuijl, Marco Stijnen, Marcel Cm Rutten, Frans N van de Vosse, Nico Hj Pijls
Hypothermia may attenuate reperfusion injury and thereby improve acute myocardial infarction therapy. Systemic cooling trials failed to reduce infarct size, perhaps because the target temperature was not reached fast enough. The use of selective intracoronary hypothermia combined with intracoronary temperature monitoring allows for titrating to target temperature and optimizing the cooling rate. We aimed to the test the feasibility of intracoronary cooling for controlled, selective myocardial hypothermia in an isolated beating pig heart...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337031/multimode-fiber-tip-fabry-perot-cavity-for-highly-sensitive-pressure-measurement
#9
W P Chen, D N Wang, Ben Xu, C L Zhao, H F Chen
We demonstrate an optical Fabry-Perot interferometer fiber tip sensor based on an etched end of multimode fiber filled with ultraviolet adhesive. The fiber device is miniature (with diameter of less than 60 μm), robust and low cost, in a convenient reflection mode of operation, and has a very high gas pressure sensitivity of -40.94 nm/MPa, a large temperature sensitivity of 213 pm/°C within the range from 55 to 85 °C, and a relatively low temperature cross-sensitivity of 5.2 kPa/°C. This device has a high potential in monitoring environment of high pressure...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28336426/sar-simulations-safety
#10
Thomas M Fiedler, Mark E Ladd, Andreas K Bitz
At ultra-high fields, the assessment of radiofrequency (RF) safety presents several new challenges compared to low-field systems. Multi-channel RF transmit coils in combination with parallel transmit techniques produce time-dependent and spatially varying power loss densities in the tissue. Further, in ultra-high-field systems, localized field effects can be more pronounced due to a transition from the quasistationary to the electromagnetic field regime. Consequently, local information on the RF field is required for reliable RF safety assessment as well as for monitoring of RF exposure during MR examinations...
March 20, 2017: NeuroImage
https://www.readbyqxmd.com/read/28336095/chlorinated-pesticides-and-natural-brominated-anisoles-in-air-at-three-northern-baltic-stations
#11
Terry F Bidleman, Hjalmar Laudon, Olle Nygren, Staffan Svanberg, Mats Tysklind
Polyurethane foam (PUF) disk passive samplers were deployed at one inland and two island locations in the Bothnian Bay region of the northern Baltic Sea. Uptake was linear over 81-147 d and a temperature range of -2.6 to 14.2 °C for organochlorine pesticides (OCPs) and current-use pesticides (CUPs) having log KOA ≥9 at ambient temperatures. Partial saturation of the PUF disks occurred for the more volatile OCPs hexachlorocyclohexanes (HCHs) and hexachlorobenzene (HCB), and for bromoanisoles (BAs), which are products of bromophenols released by natural and anthropogenic sources...
March 20, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28335384/localization-and-tracking-of-implantable-biomedical-sensors
#12
REVIEW
Ilknur Umay, Barış Fidan, Billur Barshan
Implantable sensor systems are effective tools for biomedical diagnosis, visualization and treatment of various health conditions, attracting the interest of researchers, as well as healthcare practitioners. These systems efficiently and conveniently provide essential data of the body part being diagnosed, such as gastrointestinal (temperature, pH, pressure) parameter values, blood glucose and pressure levels and electrocardiogram data. Such data are first transmitted from the implantable sensor units to an external receiver node or network and then to a central monitoring and control (computer) unit for analysis, diagnosis and/or treatment...
March 13, 2017: Sensors
https://www.readbyqxmd.com/read/28334752/monitoring-the-consistency-quality-and-antioxidant-activity-of-da-hong-pao-teas-by-hplc-fingerprinting
#13
Lin Wang, Ting Yan, Lanping Yang, Kexia Zhang, Jingming Jia
In the present study, a high performance liquid chromatography (HPLC) method was developed and validated for fingerprint profiling to evaluate the quality consistency of the Da Hong Pao tea. The chromatographic separation was performed on a USA Waters C18 column (4.6 mm × 250 mm, 5 μm, Waters-XBridge Shield RP 18) with gradient elution. The column temperature was maintained at 30°C and the detection wavelength was set at 278 nm. The results demonstrated that the developed HPLC method achieved the desired linearity, precision, accuracy and limit of quantification...
February 18, 2017: Journal of Chromatographic Science
https://www.readbyqxmd.com/read/28332195/skin-cancer-history-sun-related-attitudes-behaviour-and-sunburn-among-renal-transplant-recipients-versus-general-population
#14
Vivian Ka Ying Leung, Suzanne Jane Dobbinson, David Josef Goodman, John Kanellis, Alvin Heong Chong
BACKGROUND/OBJECTIVES: Renal transplant recipients (RTR) have both an excessive skin cancer incidence and a high mortality rate. In Australia RTR receive extensive public education on skin cancer and many undergo further education pre/post-transplant. This study examines whether RTR have sufficiently rigorous sun protection behaviour compared with the general population. METHODS: Altogether 179 RTR from two large Melbourne hospitals involving skin clinic teams in patient care were recruited to undergo cross-sectional telephone interviews...
March 23, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28331355/observing-continuous-change-in-heart-rate-variability-and-photoplethysmography-derived-parameters-during-the-process-of-pain-production-relief-with-thermal-stimuli
#15
Jing-Jhao Ye, Kuan-Ting Lee, Jing-Siang Lin, Chiung-Cheng Chuang
Continuously monitoring and efficiently managing pain has become an important issue. However, no study has investigated a change in physiological parameters during the process of pain production/relief. This study modeled the process of pain production/relief using ramped thermal stimulation (no pain: 37°C water, process of pain production: a heating rate of 1°C/min, and subject feels pain: water kept at the painful temperature for each subject, with each segment lasting 10 min). In this duration, the variation of the heat rate variability and photoplethysmography-derived parameters was observed...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28330770/dj-1-a-parkinson-s-disease-related-protein-aggregates-under-denaturing-conditions-and-co-aggregates-with-%C3%AE-synuclein-through-hydrophobic-interaction
#16
Min Zhu, Shivaliben H Patel, Shubo Han
BACKGROUND: DJ-1, a small ubiquitously expressed protein implicated in several pathways associated with Parkinson's disease pathogenesis, has been found to interact with α-synuclein and modulate its aggregation, yet the exact mechanisms remain unclear. METHODS: The stability and aggregation properties of wild-type DJ-1 under denaturing conditions, such as low pH, high temperature, presence of denaturants were investigated. The interaction between DJ-1 and α-synuclein was tested by SDS-PAGE gel and native gel electrophoresis and by size-exclusion HPLC...
March 18, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28330768/estrous-detection-by-monitoring-ventral-tail-base-surface-temperature-using-a-wearable-wireless-sensor-in-cattle
#17
Ryotaro Miura, Koji Yoshioka, Toru Miyamoto, Hirofumi Nogami, Hironao Okada, Toshihiro Itoh
In the present study, the ventral tail base surface temperature (ST) was monitored using a wearable wireless sensor for estrus detection in cattle. Relationships among ST, behavioral estrus expression, ovulation, and changes in hormone profiles during the estrous cycle were examined. Holstein Friesian or Japanese Black female cattle were used in summer (August-September), autumn (October-November) and winter (January-February; three animals per season). On Day 11 of the estrous cycle (Day 0=the day of ovulation), the sensor was attached to the surface of the ventral tail base and ST was measured every 2min until Day 11 of the next estrous cycle...
March 11, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28330557/loss-of-anthocyanins-and-modification-of-the-anthocyanin-profiles-in-grape-berries-of-malbec-and-bonarda-grown-under-high-temperature-conditions
#18
Inés de Rosas, María Teresa Ponce, Emiliano Malovini, Leonor Deis, Bruno Cavagnaro, Pablo Cavagnaro
Malbec and Bonarda are the two most widely cultivated grape varieties in Argentina, and their derived red wines are recognized worldwide, being their intense color a major quality trait. The temperature during fruit ripening conditions berries color intensity. In the main viticulture region of Malbec and Bonarda a 2-3°C increase in temperature has been predicted for the upcoming years as consequence of the global climate change. In the present study, this predicted temperature raise was simulated under field-crop conditions, and its effect on anthocyanin pigmentation in berries of Malbec and Bonarda was monitored by HPLC analysis throughout the ripening process, in two growing seasons...
May 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28328661/microangiography-to-monitor-treatment-outcomes-following-severe-frostbite-injury-to-the-hands
#19
Thomas Masters, Steven Omodt, Jon Gayken, Christopher Logue, Bjorn Westgard, Stephen Hendriksen, Joseph Walter, Rachel Nygaard
Frostbite injury causes direct damage to tissues following exposure to temperatures below their freezing point causing tissue death potentially leading to serious amputations. After rewarming, a variety of treatment options have been employed to avoid amputation. This case report details the use of indocyanine green fluorescence microangiography to monitor the clinical progression of perfusion following hyperbaric oxygen therapy (HBOT) for severe frostbite injury. We present a case report of a man with deep frostbite of the bilateral hands treated with thrombolytics and HBOT...
March 15, 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/28327173/a-new-paradigm-for-aedes-spp-surveillance-using-gravid-ovipositing-sticky-trap-and-ns1-antigen-test-kit
#20
Sai Ming Lau, Tock H Chua, Wan-Yussof Sulaiman, Sylvia Joanne, Yvonne Ai-Lian Lim, Shamala Devi Sekaran, Karuthan Chinna, Balan Venugopalan, Indra Vythilingam
BACKGROUND: Dengue remains a serious public health problem in Southeast Asia and has increased 37-fold in Malaysia compared to decades ago. New strategies are urgently needed for early detection and control of dengue epidemics. METHODS: We conducted a two year study in a high human density dengue-endemic urban area in Selangor, where Gravid Ovipositing Sticky (GOS) traps were set up to capture adult Aedes spp. mosquitoes. All Aedes mosquitoes were tested using the NS1 dengue antigen test kit...
March 21, 2017: Parasites & Vectors
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