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https://www.readbyqxmd.com/read/28445536/assessment-of-dental-ontogeny-in-late-miocene-hipparionines-from-the-lamagou-fauna-of-fugu-shaanxi-province-china
#1
Yangfan Li, Tao Deng, Hong Hua, Yongxiang Li, Yunxiang Zhang
A collection of 28 hipparionine skull and mandible fossils with a dated age of approximately 7.4 Ma from Fugu, Shaanxi, northwestern China (belonging to Hipparion chiai and Hipparion cf. coelophyes) shows an age distribution in a successive development sequence. By observing the dentitions in these fossil materials, knowledge of dental ontogeny has been gained, such as the opening time of the posterior wall of post-fossettes, the displacement of the plis hypostyle, the morphologic changes of the protocone and hypocone, etc...
2017: PloS One
https://www.readbyqxmd.com/read/28445407/application-of-uhplc-esi-q-tof-ms-to-identify-multiple-constituents-in-processed-products-of-the-herbal-medicine-ligustri-lucidi-fructus
#2
Hui Li, Weifeng Yao, Qinan Liu, Jia Xu, Beihua Bao, Mingqiu Shan, Yudan Cao, Fangfang Cheng, Anwei Ding, Li Zhang
Ligustri Lucidi Fructus (LLF), the fruit of Ligustrum lucidum Ait. (Oleaceae), has been used as a common herbal medicine in clinical practice in China for nearly 2000 years. In most cases, LLF is prescribed in decoctions in the form of processed products rather than crude drugs. In this study, an ultra-high performance liquid chromatography coupled with electrospray ionization-quadrupole-time of flight-mass spectrometry (UHPLC-ESI-Q-TOF-MS) method was established for rapid separation and identification of multiple constituents in the 80% methanol extract of processed-LLF...
April 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28444796/determination-of-volatile-flavour-profiles-of-citrus-spp-fruits-by-sde-gc-ms-and-enantiomeric-composition-of-chiral-compounds-by-mdgc-ms
#3
Joon Ho Hong, Naeem Khan, Nargis Jamila, Young Shin Hong, Eun Yeong Nho, Ji Yeon Choi, Cheong Mi Lee, Kyong Su Kim
INTRODUCTION: Citrus fruits are known to have characteristic enantiomeric key compounds biosynthesised by highly stereoselective enzymatic mechanisms. In the past, evaluation of the enantiomeric ratios of chiral compounds in fruits has been applied as an effective indicator of adulteration by the addition of synthetic compounds or natural components of different botanical origin. OBJECTIVE: To analyse the volatile flavour compounds of Citrus junos Sieb. ex Tanaka (yuzu), Citrus limon BURM...
April 25, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28442941/competency-based-tool-for-evaluation-of-community-based-training-in-undergraduate-medical-education-in-india-a-delphi-approach
#4
Hemant Deepak Shewade, Kathiresan Jeyashree, Selvaraj Kalaiselvi, Chinnakali Palanivel, Krishna Chandra Panigrahi
INTRODUCTION: A community-based training (CBT) program, where teaching and training are carried out in the community outside of the teaching hospital, is a vital part of undergraduate medical education. Worldwide, there is a shift to competency-based training, and CBT is no exception. We attempted to develop a tool that uses a competency-based approach for assessment of CBT. METHODS: Based on a review on competencies, we prepared a preliminary list of major domains with items under each domain...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28442175/reframing-continence-care-in-care-dependence
#5
Joan Ostaszkiewicz
International guidelines promote active investigation and treatment of incontinence; however, these guidelines do not fully accommodate the psychosocial aspects associated with providing continence care i.e. the caregiving dynamics. The author developed a new framework that aims to support nurses and care workers in their efforts to identify and meet the continence care needs of individuals with complex health conditions who are dependent on another person for assistance to manage incontinence or to maintain continence...
April 23, 2017: Geriatric Nursing
https://www.readbyqxmd.com/read/28441728/imaging-of-the-finger-vein-and-blood-flow-for-anti-spoofing-authentication-using-a-laser-and-a-mems-scanner
#6
Jaekwon Lee, Seunghwan Moon, Juhun Lim, Min-Joo Gwak, Jae Gwan Kim, Euiheon Chung, Jong-Hyun Lee
A new authentication method employing a laser and a scanner is proposed to improve image contrast of the finger vein and to extract blood flow pattern for liveness detection. A micromirror reflects a laser beam and performs a uniform raster scan. Transmissive vein images were obtained, and compared with those of an LED. Blood flow patterns were also obtained based on speckle images in perfusion and occlusion. Curvature ratios of the finger vein and blood flow intensities were found to be nearly constant, regardless of the vein size, which validated the high repeatability of this scheme for identity authentication with anti-spoofing...
April 22, 2017: Sensors
https://www.readbyqxmd.com/read/28441672/how-to-lead-the-way-through-complexity-constraint-and-uncertainty-in-academic-health-science-centers
#7
Susan J Lieff, Francis J Yammarino
Academic medicine is in an era of unprecedented and constant change due to fluctuating economies, globalization, emerging technologies, research, and professional and educational mandates. Consequently, academic health science centers (AHSCs) are facing new levels of complexity, constraint, and uncertainty. Currently, AHSC leaders work with competing academic and health service demands and are required to work with and are accountable to a diversity of stakeholders. Given the new challenges and emerging needs, the authors believe the leadership methods and approaches AHSCs have used in the past that led to successes will be insufficient...
May 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441331/improving-biometric-based-authentication-schemes-with-smart-card-revocation-reissue-for-wireless-sensor-networks
#8
Jongho Moon, Donghoon Lee, Youngsook Lee, Dongho Won
User authentication in wireless sensor networks is more difficult than in traditional networks owing to sensor network characteristics such as unreliable communication, limited resources, and unattended operation. For these reasons, various authentication schemes have been proposed to provide secure and efficient communication. In 2016, Park et al. proposed a secure biometric-based authentication scheme with smart card revocation/reissue for wireless sensor networks. However, we found that their scheme was still insecure against impersonation attack, and had a problem in the smart card revocation/reissue phase...
April 25, 2017: Sensors
https://www.readbyqxmd.com/read/28437164/factors-affecting-the-levels-of-heavy-metals-in-juices-processed-with-filter-aids
#9
Zhengfang Wang, Lauren S Jackson, Joseph E Jablonski
This study investigated factors that may contribute to the presence of arsenic and other heavy metals in apple and grape juices processed with filter aids. Different types and grades of filter aids were analyzed for arsenic, lead, and cadmium with inductively coupled plasma-tandem mass spectrometry. Potential factors affecting the transfer of heavy metals to juices during filtration treatments were evaluated. Effects of washing treatments on removal of heavy metals from filter aids were also determined. Results showed that diatomaceous earth (DE) generally contained a higher level of arsenic than perlite, whereas perlite had a higher lead content than DE...
April 24, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28436717/preparing-nursing-students-for-mental-health-care-the-impact-of-a-recovery-oriented-clinical-placement
#10
Dana Perlman, Christopher Patterson, Lorna Moxham, Ellie Taylor, Renee Brighton, Susan Sumskis, Tim Heffernan
The provision of mental health care has recently focused on the concept of recovery-oriented care. Clinical placements are important for imparting recovery-oriented knowledge and skills to students. However, it has been determined that not all clinical placements are beneficial for future nursing professionals. The aim of this study was to examine what elements of professional learning were facilitated by engagement in a recovery- and recreation-based clinical placement for pre-registration nursing students called Recovery Camp...
April 24, 2017: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/28436635/-application-progress-on-near-infrared-spectroscopy-in-quality-control-and-process-monitoring-of-traditional-chinese-medicine
#11
Wenlong Li, Haibin Qu
The industry of traditional Chinese medicine (TCM) encounters problems like quality fluctuation of raw materials and unstandardized production process. Near infrared (NIR) spectroscopy technology is widely used in quality control of TCM because of its abundant information, fast and nondestructive characters. The main applications include quantitative analysis of Chinese medicinal materials, intermediates and Chinese patent medicines; the authenticity of TCM, species, origins and manufacturers; monitoring and control of the extraction, alcohol precipitation, column chromatography and blending process...
January 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/28434086/the-inability-of-bacillus-licheniformis-perr-mutant-to-grow-is-mainly-due-to-the-lack-of-perr-mediated-fur-repression
#12
Jung-Hoon Kim, Yoon-Mo Yang, Chang-Jun Ji, Su-Hyun Ryu, Young-Bin Won, Shin-Yeong Ju, Yumi Kwon, Yeh-Eun Lee, Hwan Youn, Jin-Won Lee
PerR, a member of Fur family protein, is a metal-dependent H2O2 sensing transcription factor that regulates genes involved in peroxide stress response. Industrially important bacterium Bacillus licheniformis contains three PerR-like proteins (PerRBL, PerR2, and PerR3) compared to its close relative Bacillus subtilis. Interestingly, unlike other bacteria including B. subtilis, no authentic perR BL null mutant could be established for B. licheniformis. Thus, we constructed a conditional perR BL mutant using a xylose-inducible promoter, and investigated the genes under the control of PerRBL...
April 22, 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28429676/determination-of-dinotefuran-and-its-metabolites-in-orange-pulp-orange-peel-and-whole-orange-using-liquid-chromatography-tandem-mass-spectrometry
#13
Zaihui Yang, Kankan Zhang, Lingzhu Chen, Bin Liu, Qingtao Zhang, Haizhen Zhang, Caiyuan Sun, Deyu Hu
Determination of the polar characteristics of dinotefuran and metabolite residues in orange matrixes (orange pulp, orange peel, and whole orange) is difficult. Thus, the purpose of the present study was to develop an extraction method for the determination of dinotefuran and its metabolites in oranges by using liquid chromatography with tandem mass spectrometry (LC-MS/MS). Matrix suppression effects were observed for all analytes in the orange matrixes. The proposed method displayed satisfactory linearity (R(2) ≥ 0...
April 21, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28429650/development-of-real-time-pcr-tests-for-the-detection-of-tenebrio-molitor-in-food-and-feed
#14
Frédéric Debode, Aline Marien, Amaury Gerard, Frédéric Francis, Olivier Fumiere, Gilbert Berben
Insects are rich in proteins and could be an alternative source of proteins to feed animals and humans. Numerous companies have started the production of insects for feed purposes. In Europe, these processed animal proteins are not yet authorized by legislation, as many questions still need to be answered concerning this "novel food". Authorizations will be possible when methods of authentication of the products are available. In this study we propose real-time PCR methods for the specific detection of the mealworm (Tenebrio molitor), one of the most widely used insects for food and feed production...
April 21, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28429299/participation-of-c-h-protons-in-the-dissociation-of-a-proton-deficient-dipeptide
#15
Damodar Koirala, Sabyasachy Mistry, Paul G Wenthold
The dissociation of anionic dipeptides Phe*Gly and GlyPhe*, where Phe* refers to sulfonated phenyl alanine, has been investigated by using ion trap mass spectrometry. The dipeptides undergo collision-induced dissociation (CID) to give the same products, indicating that they rearrange to a common structure before dissociation. The rearrangement does not occur with the dipeptide methyl esters. The structures of the b2 ions were investigated to determine the effect that having a remote, anionic site has on product formation...
April 20, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28427537/metabolomics-nutrition-and-potential-biomarkers-of-food-quality-intake-and-health-status
#16
Jean-Louis Sébédio
Diet, dietary patterns, and other environmental factors such as exposure to toxins are playing an important role in the prevention/development of many diseases, like obesity, type 2 diabetes, and consequently on the health status of individuals. A major challenge nowadays is to identify novel biomarkers to detect as early as possible metabolic dysfunction and to predict evolution of health status in order to refine nutritional advices to specific population groups. Omics technologies such as genomics, transcriptomics, proteomics, and metabolomics coupled with statistical and bioinformatics tools have already shown great potential in this research field even if so far only few biomarkers have been validated...
2017: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/28427534/methodologies-for-the-characterization-of-the-quality-of-dairy-products
#17
Romdhane Karoui
The growing interest of consumers in food quality and safety issues has contributed to the increasing demand for sensitive and rapid analytical technologies. Physicochemical, textural, sensory, etc., methods have been used to evaluate the quality and authenticity of milk and dairy products. Despite the importance of these standard methods, they are expensive and time consuming. Recently, spectroscopic methods have shown great potential due to speed of analysis, minimal sample preparation, high repeatability, low cost, and, most of all, the fact that these techniques are noninvasive and nondestructive and, therefore, could be applied to any on-line monitoring system...
2017: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/28427303/values-based-practice-a-framework-for-thinking-with
#18
Kay Mohanna
Values are those principles that govern behaviours, and values-based practice has been described as a theory and skills base for effective healthcare decision-making where different (and hence potentially conflicting) values are in play. The emphasis is on good process rather than pre-set right outcomes, aiming to achieve balanced decision-making. In this article we will consider the utility of this model by looking at leadership development, a current area of much interest and investment in healthcare. Copeland points out that 'values based leadership behaviors are styles with a moral, authentic and ethical dimension', important qualities in healthcare decision-making...
April 21, 2017: Education for Primary Care
https://www.readbyqxmd.com/read/28426822/genomics-of-a-revived-breed-case-study-of-the-belgian-campine-cattle
#19
Liesbeth François, Katrien Wijnrocx, Frédéric G Colinet, Nicolas Gengler, Bettine Hulsegge, Jack J Windig, Nadine Buys, Steven Janssens
Through centuries of both natural and artificial selection, a variety of local cattle populations arose with highly specific phenotypes. However, the intensification and expansion of scale in animal production systems led to the predominance of a few highly productive cattle breeds. The loss of local populations is often considered irreversible and with them specific qualities and rare variants could be lost as well. Over these last years, the interest in these local breeds has increased again leading to increasing efforts to conserve these breeds or even revive lost populations, e...
2017: PloS One
https://www.readbyqxmd.com/read/28425044/systematic-review-for-geo-authentic-lonicerae-japonicae-flos
#20
REVIEW
Xingyue Yang, Yali Liu, Aijuan Hou, Yang Yang, Xin Tian, Liyun He
In traditional Chinese medicine, Lonicerae Japonicae Flos is commonly used as anti-inflammatory, antiviral, and antipyretic herbal medicine, and geo-authentic herbs are believed to present the highest quality among all samples from different regions. To discuss the current situation and trend of geo-authentic Lonicerae Japonicae Flos, we searched Chinese Biomedicine Literature Database, Chinese Journal Full-text Database, Chinese Scientific Journal Full-text Database, Cochrane Central Register of Controlled Trials, Wanfang, and PubMed...
April 19, 2017: Frontiers of Medicine
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