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https://www.readbyqxmd.com/read/28823108/temperature-effect-on-the-development-of-tropical-dragonfly-eggs
#1
F Z Mendonça, J V Bernardy, C E K Oliveira, P B G Oliveira, P De Marco
Physiological constraints in insects are related to several large-scale processes such as species distribution and thermal adaptation. Here, we fill an important gap in ecophysiology knowledge by accessing the relationship between temperature and embrionary development time in four dragonfly species. We evaluated two questions (1) what is the effect of temperature on the development time of Odonata eggs, and (2) considering a degree-day relationship, could a simple linear model describe the dependence of embrionary development time on temperature or it is better described by a more complex non-linear relation...
August 19, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28822961/use-of-key-performance-indicators-in-histological-dissection
#2
Matthew Griffiths, Rachel Gillibrand
AIMS: Reports into standards in the National Health Service and quality in pathology have focused on the way we work in pathology and how to provide assurance that this is of a high standard. There are a number of external quality assurance schemes covering pathology and histopathology specifically; however, there is no scheme covering the process of histological surgical dissection. This is an area undergoing development, emerging from the sole preserve of medically qualified pathologists to a field populated by a number of highly trained biomedical scientists, but remains without any formal quality assurance...
August 19, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28822862/testing-the-performance-of-superhydrophobic-aluminum-surfaces
#3
F Javier Montes Ruiz-Cabello, Pablo F Ibáñez-Ibáñez, J Francisco Gómez-Lopera, José Martínez-Aroza, Miguel Cabrerizo-Vílchez, Miguel A Rodríguez-Valverde
The analysis of wetting properties of superhydrophobic surfaces may be a difficult task due to the restless behavior of drops on this type of surfaces and the limitations of goniometry for high contact angles. A method to validate the performance of superhydrophobic surfaces, rather than standard goniometry, is required. In this work, we used bouncing drop dynamics as a useful tool to predict the water repellency of different superhydrophobic surfaces. From bouncing drop experiments conducted over a wide range of superhydrophobic surfaces, we found that those surfaces with a proper roughness degree and homogeneous chemical composition showed higher water-repellency...
August 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28822748/systematical-exploration-of-transcription-factors-in-cardiomyocytes-against-hydrogen-peroxide-induced-oxidative-stress-by-danhong-injection
#4
Jingjing Zhang, Feifei Guo, Junying Wei, Minghua Xian, Shihuan Tang, Ye Zhao, Mingwei Liu, Lei Song, Ya Geng, Hongjun Yang, Chen Ding, Luqi Huang
Oxidative stress plays a vital role in many pathological processes of the cardiovascular diseases. However, the underlying mechanism remains unclear, especially on a transcription factor (TF) level. In this study, a new method, concatenated tandem array of consensus transcription factor response elements (catTFREs), and an Illumina-based RNA-seq technology were integrated and then combined with a network pharmacology strategy to systematically investigate the role of TFs in hydrogen peroxide (H2O2)-induced oxidative stress in cardiomyocytes; the damage was then rescued by Danhong injection (DHI), a Chinese standardized product approved for cardiovascular diseases treatment...
August 16, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28822724/finding-the-ledge-sagittal-analysis-of-bony-landmarks-of-the-orbit
#5
Peter J J Gooris, Barbara S Muller, Leander Dubois, Jan E Bergsma, Gertjan Mensink, Maaike F E van den Ham, Alfred G Becking, Karlien Seubring
PURPOSE: This study determined the average distances and angles between anatomic landmarks within the orbit, with an emphasis on localization of the orbital process of the palatine bone. This information will help the surgeon with treatment planning and surgical procedures. PATIENTS AND METHODS: Four anatomic landmarks were identified retrospectively on computed tomograms of 100 adult Caucasian patients (50 men and 50 women): the top of the infraorbital margin superior to the infraorbital foramen (point A), the top of the orbital process of the palatine bone (point B), the anteriormost bony portion of the superior orbital fissure (point C), and the ventrolateral aspect of the bony entrance of the optic canal (point D)...
July 25, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28822473/influence-of-spinal-manipulative-therapy-force-magnitude-and-application-site-on-spinal-tissue-loading-a-biomechanical-robotic-serial-dissection-study-in-porcine-motion-segments
#6
Martha Funabashi, François Nougarou, Martin Descarreaux, Narasimha Prasad, Greg Kawchuk
OBJECTIVE: In order to define the relation between spinal manipulative therapy (SMT) input parameters and the distribution of load within spinal tissues, the aim of this study was to determine the influence of force magnitude and application site when SMT is applied to cadaveric spines. METHODS: In 10 porcine cadavers, a servo-controlled linear actuator motor provided a standardized SMT simulation using 3 different force magnitudes (100N, 300N, and 500N) to 2 different cutaneous locations: L3/L4 facet joint (FJ), and L4 transverse processes (TVP)...
July 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28822401/esophageal-perforation-a-common-clinical-problem-with-many-different-management-options
#7
Lloyd M Felmly, Hyejin Kwon, Chadrick E Denlinger, Jacob A Klapper
Esophageal perforation is a complex clinical entity that has multiple etiologies and variability in presentation, making it challenging to diagnose and treat. The mortality of esophageal perforation has improved because therapies have evolved. Whereas primary repair is the standard of care, multiple treatments may be employed successfully. We retrospectively reviewed all cases of suspected or confirmed esophageal perforation that were admitted to the thoracic surgery service at our institution between January 2011 and June 2016...
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28822314/a-portable-smart-phone-device-for-rapid-and-sensitive-detection-of-e-coli-o157-h7-in-yoghurt-and-egg
#8
Mohamed Maarouf Ali Zeinhom, Yijia Wang, Yang Song, Mei-Jun Zhu, Yuehe Lin, Dan Du
The detection of E. coli O157:H7 in foods has held the attention of many researchers because of the seriousness attributed to this pathogen. In this study, we present a simple, sensitive, rapid and portable smartphone based fluorescence device for E. coli O157:H7 detection. This field-portable fluorescent imager on the smartphone involves a compact laser-diode-based photosource, a long-pass (LP) thin-film interference filter and a high-quality insert lenses. The design of the device provided a low noise to background imaging system...
August 4, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28822213/liberia-national-disaster-preparedness-coordination-exercise-implementing-lessons-learned-from-the-west-african-disaster-preparedness-initiative
#9
Melinda J Morton Hamer, Paul L Reed, Jane D Greulich, Charles W Beadling
OBJECTIVE: In light of the recent Ebola outbreak, there is a critical need for effective disaster management systems in Liberia and other West African nations. To this end, the West Africa Disaster Preparedness Initiative held a disaster management exercise in conjunction with the Liberian national government on November 24-25, 2015. DESIGN: During this tabletop exercise (TTX), interactions within and between the 15 counties and the Liberian national government were conducted and observed to refine and validate the county and national standard operating procedures (SOPs)...
January 2017: American Journal of Disaster Medicine
https://www.readbyqxmd.com/read/28822202/-q-marker-of-chinese-medicine-and-metabolic-regularity-of-co-network-compatibility-and-rainbow-potential
#10
Yan-Tao Yang, Sen Li, Jin-Ling Liu, Jin Zhou, Yi-Qun Zhou, Nai-Hong Chen, Fu-Yuan He
The effect of Chinese medicine (CM) compound prescription is the combined action results of single herbs based on the basic theory of Chinese medicine, and its function embodies the characteristics of multi components, multi targets and comprehensive effects. It is difficult to study the therapeutic material, establish quality standards or determine Q-marker, so we can't strictly monitor the quality of the whole process of CM. The identification of Q-marker has a profound influence on the whole process of the pharmaceutical engineering of CM...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822183/-application-of-dosc-combined-with-sbc-in-batches-transfer-of-nir-quantitative-model
#11
Yi-Fei Jia, Ying-Ying Zhang, Bing Xu, An-Dong Wang, Xue-Yan Zhan
Near infrared model established under a certain condition can be applied to the new samples status, environmental conditions or instrument status through the model transfer. Spectral background correction and model update are two types of data process methods of NIR quantitative model transfer, and orthogonal signal regression (OSR) is a method based on spectra background correction, in which virtual standard spectra is used to fit a linear relation between master batches spectra and slave batches spectra, and map the slave batches spectra to the master batch spectra to realize the transfer of near infrared quantitative model...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822182/-acute-toxicity-of-euphorbiae-pekinensis-radix-and-vinegar-processing-euphorbiae-pekinensis-radix-on-zebrafish-embryo
#12
Kai-Cheng Zhang, Yu-Dan Cao, Fang Yao, Li Zhang, An-Wei Ding
The embryos of model organism zebrafish were used to evaluate the acute toxicity of the extracts of Euphorbiae Pekinensis Radix and vinegar-processing Euphorbiae Pekinensis Radix, and the total terpene content of each extract was determined by using euphol as the reference standards. Twenty-four h normally developed zebrafish embryos were chosen, and 8 concentrations were adopted for each extract. Then the growth and death of zebrafish embryos were observed at 96 h after administration, and median lethal concentrations (LC50) of the different samples on zebrafish embryos were calculated...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822171/-analysis-of-historical-origin-and-standardization-system-construction-of-citri-grandis-exocarpium
#13
Yi-Ping Yuan, Hua-Qiang Zhai, Zhao-Juan Guo, Li-Ting Kong, Xiao-Yu Jia, Ning-Ning Wang, Ying Dai, Pin-Hao Yu
To understand the history development and changes of Citri Grandis Exocarpium and initially establish its standard system after exploring the historical origins and modern development of Citri Grandis Exocarpium. In CNKI, Wanfang database and other academic search platforms were searched for literature on Citri Grandis Exocarpium and Chinese medicine standard system; the books related to its modern cultivation techniques and processing technology were also accessed, and after combining with the actual situation analysis, the prospective design of the standard system of Citri Grandis Exocarpium was finally established with research conclusion...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822170/-effect-and-regulation-of-drying-on-quality-of-traditional-chinese-medicine-pills
#14
Ya-Ru Qi, Yuan-Hui Li, Li Han, Zhen-Feng Wu, Peng-Fei Yue, Xue-Cheng Wang, Yao-Kun Xiong, Ming Yang
The dry quality of traditional Chinese medicine pills is the hot spot of pills research, because their quality has a crucial effect on the efficacy and development of dosage forms. Through literature research and statistical analysis, we would review the current problems on the drying of traditional Chinese medicine pills in this paper, and surrounding the evaluation system for traditional Chinese medicine pills, analyze the characteristics of common drying equipment and processes as well as their effect on quality of pills, discuss the problems in drying equipment and process as well as quality, and put forward the corresponding strategies, hoping to provide new ideas and new methods for the quality improvement of traditional Chinese medicine pills and quality standards...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28822128/quantification-of-photorespiratory-intermediates-by-mass-spectrometry-based-approaches
#15
Stéphanie Arrivault, Toshihiro Obata
Photorespiration is an essential metabolic process in plants occurring via the oxygenase reaction of RuBisCO. In order to understand this process, it is essential to determine the amounts of intermediates involved. For this purpose we combined mass spectrometry-based approaches and the use of authentic standards for the quantification of photorespiratory intermediates. Here we describe protocols for the extraction and quantification of 2-phosphoglycolate (2PG) by LC-MS/MS and serine, glycine, glycolate, hydroxypyruvate, glyoxylate, and glycerate by GC-MS...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28821323/post-mortem-magnetic-resonance-pmmr-imaging-of-the-brain-in-fetuses-and-children-with-histopathological-correlation
#16
REVIEW
S C Shelmerdine, J C Hutchinson, N J Sebire, T S Jacques, O J Arthurs
Post-mortem magnetic resonance (PMMR) imaging is rapidly emerging as an alternative, "less invasive", and more widely accepted investigative approach for perinatal deaths in the UK. PMMR has a high diagnostic accuracy for congenital and acquired fetal neuropathological anomalies compared to conventional autopsy, and is particularly useful when autopsy is non-diagnostic. The main objectives of this review are to describe and illustrate the range of common normal and abnormal central nervous system (CNS) findings encountered during PMMR investigation...
August 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28821059/characterization-of-alkali-treated-and-untreated-new-cellulosic-fiber-from-saharan-aloe-vera-cactus-leaves
#17
Balaji A N, Nagarajan K J
The aim of this study is to examine the use of new natural fibers, which are extracted from the Saharan aloe vera cactus plant leaves as reinforcement in polymer composites. The physicochemical, mechanical and thermal properties of the Saharan Aloe Vera Cactus Leaves (SACL) fibers are investigated, through the effect of alkali treatment. The contents of α-cellulose, hemicellulose, wax and moisture present in SACL fibers were characterized by standard test methods The mechanical properties of SACL fibers were measured through single fiber tensile test...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821039/processes-involving-selective-precipitation-for-the-recovery-of-purified-pectins-from-mango-peel
#18
Andreas Nagel, Carina Winkler, Reinhold Carle, Hans-Ulrich Endress, Christine Rentschler, Sybille Neidhart
Three methods for the recovery of purified pectins from directly dried mango peel were developed, using selective precipitation of mango pectin in propan-2-ol (IPA) of adequate volume concentrations for purification. Yields, composition, macromolecular and gelling properties of the resultant pectins were compared. Effluent analyses proved postextractive removal of fruit exudate arabinogalactans. The recovery processes involved (A) washing of raw-pectin powder in IPA of defined volume concentration, (B) fractional alcoholic precipitation of dissolved raw pectin, or (C) selective pectin precipitation from the hot-acid extract of mango peel in adequately diluted IPA...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28820352/challenging-questions-regarding-the-international-standards
#19
Ryan Solinsky, Steven C Kirshblum
Objective/Context To highlight questions with regards to the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) and provide historical perspectives to help SCI professionals gain fuller insights into the classification system. Methods Frequently asked questions to the ISNCSCI were collected and a review of literature and personal communications with International Standards committee members and Chairs were undertaken. Results Background and explanations for nine questions, detailing decision processes and challenging classification rules are presented...
August 18, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28820309/advanced-cone-beam-ct-venous-angiographic-imaging
#20
Visish M Srinivasan, Gouthami Chintalapani, Edward A M Duckworth, Peter Kan
OBJECTIVE The evaluation of the venous neurovasculature, especially the dural venous sinuses, is most often performed using MR or CT venography. For further assessment, diagnostic cerebral angiography may be performed. Three-dimensional rotational angiography (3D-RA) can be applied to the venous system, producing 3D rotational venography (3D-RV) and cross-sectional reconstructions, which function as an adjunct to traditional 2D digital subtraction angiography. METHODS After querying the database of Baylor St...
August 18, 2017: Journal of Neurosurgery
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