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https://read.qxmd.com/read/30781808/evaluation-of-sample-preparation-methods-for-the-analysis-of-reef-building-corals-using-%C3%A2-h-nmr-based-metabolomics
#1
Erik R Andersson, Rusty D Day, Julie M Loewenstein, Cheryl M Woodley, Tracey B Schock
The field of metabolomics generally lacks standardized methods for the preparation of samples prior to analysis. This is especially true for metabolomics of reef-building corals, where the handful of studies that were published employ a range of sample preparation protocols. The utilization of metabolomics may prove essential in understanding coral biology in the face of increasing environmental threats, and an optimized method for preparing coral samples for metabolomics analysis would aid this cause. The current study evaluates three important steps during sample processing of stony corals: (i) metabolite extraction, (ii) metabolism preservation, and (iii) subsampling...
February 13, 2019: Metabolites
https://read.qxmd.com/read/30781566/sensor-fusion-based-cooperative-trail-following-for-autonomous-multi-robot-system
#2
Mingyang Geng, Shuqi Liu, Zhaoxia Wu
Autonomously following a man-made trail in the wild is a challenging problem for robotic systems. Recently, deep learning-based approaches have cast the trail following problem as an image classification task and have achieved great success in the vision-based trail-following problem. However, the existing research only focuses on the trail-following task with a single-robot system. In contrast, many robotic tasks in reality, such as search and rescue, are conducted by a group of robots. While these robots are grouped to move in the wild, they can cooperate to lead to a more robust performance and perform the trail-following task in a better manner...
February 17, 2019: Sensors
https://read.qxmd.com/read/30781508/object-recognition-segmentation-and-classification-of-mobile-laser-scanning-point-clouds-a-state-of-the-art-review
#3
REVIEW
Erzhuo Che, Jaehoon Jung, Michael J Olsen
Mobile Laser Scanning (MLS) is a versatile remote sensing technology based on Light Detection and Ranging (lidar) technology that has been utilized for a wide range of applications. Several previous reviews focused on applications or characteristics of these systems exist in the literature, however, reviews of the many innovative data processing strategies described in the literature have not been conducted in sufficient depth. To this end, we review and summarize the state of the art for MLS data processing approaches, including feature extraction, segmentation, object recognition, and classification...
February 16, 2019: Sensors
https://read.qxmd.com/read/30780156/knowledge-on-stis-hiv-aids-stigma-discrimination-and-sexual-behaviors-among-students-of-the-university-of-dschang-in-cameroon
#4
Armand Tiotsia Tsapi, Ghyslaine Bruna Djeunang Dongho, Rose Efeutmecheh Sangong, Eméline Zogning Makemjio, Ezéchiel Ngoufack Jagni Semengue, Isidore Bell Pallawo, Eric Defo Tamgno, André Gael Bita Izacar, Yannick Azeufack Ngueko, Lucia Ercoli, Augusto Panà, Cristiano Vincenzo, Mireille Ndoungue, Gianluca Russo, Martin Sanou Sobze
This study reports the results of a survey conducted among students of the University of Dschang, on STI/HIV/AIDS, the Stigma-Discrimination pair and sexual behaviors. METHODS: This was a descriptive cross-sectional study conducted during the months of January and February 2017. We collected data by a face to face questionnaire administered to students of the University of Dschang. The codification, process and analysis have been done using the software EPI-Info 7.3.1.1, with the threshold of significance set at 0...
September 2018: Igiene e Sanità Pubblica
https://read.qxmd.com/read/30780118/alexithymia-is-associated-with-neural-reactivity-to-masked-emotional-faces-in-adolescents-who-self-harm
#5
Lauren A Demers, Melinda Westlund Schreiner, Ruskin H Hunt, Bryon A Mueller, Bonnie Klimes-Dougan, Kathleen M Thomas, Kathryn R Cullen
BACKGROUND: Non-suicidal self-injury (NSSI) is a major, trans-diagnostic mental health problem among adolescents. Alexithymia has been identified as a developmental risk factor for NSSI. Research on how alexithymia relates to the neurobiology of automatic emotion processing is only beginning to emerge. This study evaluates the relationship between alexithymic features and neural responses to automatic processing of emotional content in adolescents with NSSI. METHODS: 25 female adolescents (ages 13-21) with a history of repeated engagement in NSSI completed the Toronto Alexithymia Scale and the Difficulties with Emotion Regulation Scale and underwent functional magnetic resonance imaging (fMRI) during a task in which participants were exposed to masked emotions...
February 12, 2019: Journal of Affective Disorders
https://read.qxmd.com/read/30779849/feasibility-trial-evaluation-of-a-peer-volunteering-active-aging-intervention-ace-active-connected-engaged
#6
Afroditi Stathi, Janet Withall, Janice L Thompson, Mark G Davis, Selena Gray, Jolanthe De Koning, Graham Parkhurst, Liz Lloyd, Colin Greaves, Robert Laventure, Kenneth R Fox
BACKGROUND: ACE (Active, Connected, Engaged) is a theory-informed, pragmatic intervention using peer volunteering support to promote active ageing in socially disengaged, inactive older adults. This study aimed to establish ACE's feasibility and acceptability. METHODS: Fifty-four older adults were recruited as either peer volunteers (activators; n = 15) or participants (ACEs; n = 39). Participants were randomized to one-to-one support from an activator (ACEs-Intervention [ACEs-I]) or a waiting-list control group (ACEs-Control [ACEs-C])...
February 19, 2019: Gerontologist
https://read.qxmd.com/read/30779769/a-metamorphic-testing-approach-for-event-sequences
#7
Jing Chen, Yinglong Wang, Ying Guo, Mingyue Jiang
Test oracles are commonly used in software testing to determine the correctness of the execution results of test cases. However, the testing of many software systems faces the test oracle problem: a test oracle may not always be available, or it may be available but too expensive to apply. One such software system is a system involving abundant business processes. This paper focuses on the testing of business-process-based software systems and proposes a metamorphic testing approach for event sequences, called MTES, to alleviate the oracle problem...
2019: PloS One
https://read.qxmd.com/read/30779392/nanoscale-film-morphology-and-n-type-digital-memory-characteristics-of-%C3%AF-conjugated-donor-acceptor-alternating-copolymer-based-on-thiophene-and-thiadiazole-units
#8
Hoyeol Lee, Yongjin Kim, Seijiro Fukuta, Hwajeong Kim, Youngkyoo Kim, Tomoya Higashihara, Moonhor Ree
Various molecular weight π-conjugated donor-acceptor polymers based on thiadiazole and thiophene units are investigated with respect to nanoscale film morphology and digital memory performance. Interestingly, all polymers reveal excellent n-type digital permanent memory characteristics, which are governed by the combination of Ohmic and trap-limited space charge limited conductions via a hopping process using thiadiazole and thiophene units as charge traps and stepping stones. The digital memory performance is significantly influenced by the film morphology details that vary with the polymer molecular weight as well as the film thickness...
February 19, 2019: Macromolecular Rapid Communications
https://read.qxmd.com/read/30779256/evaluating-the-organizational-structure-and-specificity-of-network-topology-within-the-face-processing-system
#9
Daniel B Elbich, Peter C M Molenaar, K Suzanne Scherf
There is increasing appreciation that network-level interactions among regions produce components of face processing previously ascribed to individual regions. Our goals were to use an exhaustive data-driven approach to derive and quantify the topology of directed functional connections within a priori defined nodes of the face processing network and evaluate whether the topology is category-specific. Young adults were scanned with fMRI as they viewed movies of faces, objects, and scenes. We employed GIMME to model effective connectivity among core and extended face processing regions, which allowed us to evaluate all possible directional connections, under each viewing condition (face, object, place)...
February 18, 2019: Human Brain Mapping
https://read.qxmd.com/read/30778685/parcellation-of-motor-cortex-associated-regions-in-the-human-corpus-callosum-on-the-basis-of-human-connectome-project-data
#10
Martin Domin, Martin Lotze
The corpus callosum (CC) is the largest white matter structure of the brain and offers the structural basis for an intense interaction between both cerebral hemispheres. Especially with respect to the interaction of both motor cortices it shows a differentiated somatotopic organization. Neuropathological processes are often reflected in structural alterations of the CC and a spatially precise description of structures for the healthy brain is essential for further differentiation of structural damage in patients...
February 18, 2019: Brain Structure & Function
https://read.qxmd.com/read/30778611/fermented-solids-and-their-application-in-the-production-of-organic-compounds-of-biotechnological-interest
#11
Nadia Krieger, Glauco Silva Dias, Robson Carlos Alnoch, David Alexander Mitchell
We review the application of dry fermented solids (DFS) containing naturally immobilized enzymes as catalysts in synthesis and in hydrolysis reactions. The most studied application is the use of DFS containing lipases in the synthesis of biodiesel esters, by transesterification of oils or by esterification of fatty acids with short-chain alcohols in solvent-free reaction media. Other applications of DFS that have been studied include the use of DFS containing pectinases to liberate D-galacturonic acid from pectin and the production of high-value compounds by DFS containing lipases, such as the synthesis of sugar esters and the production of pure enantiomers by resolution of racemic mixtures...
February 19, 2019: Advances in Biochemical Engineering/biotechnology
https://read.qxmd.com/read/30778507/-attentional-bias-processing-mechanism-of-emotional-faces-anger-and-happiness-superiority-effects
#12
Qian-Ru Xu, Wei-Qi He, Chao-Xiong Ye, Wen-Bo Luo
Emotional information is critical for our social life, in which attentional bias is now a focus in the study on attention. However, the attentional bias processing mechanism of emotional faces still arouses huge controversy. Using similar experimental paradigms and stimuli, the published studies have yielded contradictory results. Some studies suggest that angry faces could automatically stimulate attention, that is, there is an anger superiority effect. On the contrary, lines of growing evidence support the existence of a happiness superiority effect, suggesting that the superiority effect is shown in happy faces rather than angry faces...
February 25, 2019: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://read.qxmd.com/read/30778506/-processing-mechanism-of-social-cues-in-faces
#13
Qian Zhu, Hui Kou, Tai-Yong Bi
The purpose of the present paper was to review the processing mechanisms of social cues in faces. We summarized researches relative to social cues in faces and discussed the processing mechanism of these cues from the aspects of facial expression, facial attractiveness, gaze and face direction, and lipreading. First, we discussed the general neural mechanism of face information processing and summarized the functions of face areas in the fusiform gyrus, posterior superior temporal sulcus and inferior occipital gyrus...
February 25, 2019: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://read.qxmd.com/read/30778417/-characterization-of-smoked-cocaine-substance-users-in-treatment-for-drug-abuse-in-buenos-aires-argentina
#14
Ana C Camarotti, Martín Güelman, Ana L Azparren
In this paper, we present the results of a survey that was part of a regional project on smokable cocaine substance developed in Argentina, Brazil, Chile, Paraguay and Uruguay. We analyze the characteristics of users of smoked cocaine who attend treatment centers or institutions in Buenos Aires (Argentina) that provide support and care, but not a formal treatment for drug abuse. We analyze their sociodemographic characteristics, their social supports, their health, their drug use patterns (age of onset, substances, use frequency and procedures of administration) and their history of treatment...
July 2018: Vertex: Revista Argentina de Psiquiatriá
https://read.qxmd.com/read/30778127/-worldwide-network-for-blood-marrow-transplantation-wbmt-special-article-challenges-facing-emerging-alternate-donor-registries
#15
REVIEW
Mahmoud Aljurf, Daniel Weisdorf, Feras Alfraih, Jeff Szer, Carlheinz Müller, Dennis Confer, Shahrukh Hashmi, Nicolaus Kröger, Bronwen E Shaw, Hildegard Greinix, Mohamed A Kharfan-Dabaja, Lydia Foeken, Adriana Seber, Syed Ahmed, Areej El-Jawahri, Moheeb Al-Awwami, Yoshiko Atsuta, Marcelo Pasquini, Amr Hanbali, Hazzaa Alzahrani, Shinichiro Okamoto, Eliane Gluckman, Mohamad Mohty, Yoshihisa Kodera, Mary Horowitz, Dietger Niederwieser, Riad El Fakih
Hematopoietic cell transplantation (HCT) activity is increasing at an unprecedented pace with > 50,000 allogeneic transplants occurring annually worldwide. Establishing a functional HCT donor registry can be very challenging with respect to ethnicities, financial, technical, and geopolitical issues. Extensive planning steps are essential to overcome the expected challenges while establishing the registry, and to maintain its functionality. A few strategies can help move past those challenges and push the development of such registries forward...
February 18, 2019: Bone Marrow Transplantation
https://read.qxmd.com/read/30777776/sticking-it-out-in-trauma-focused-treatment-for-ptsd-it-takes-a-village
#16
Laura A Meis, Siamak Noorbaloochi, Emily M Hagel Campbell, Christopher R Erbes, Melissa A Polusny, Tina L Velasquez, Ann Bangerter, Andrea Cutting, Afsoon Eftekhari, Craig S Rosen, Peter W Tuerk, Lori B Burmeister, Michele R Spoont
OBJECTIVE: One in 3 veterans will dropout from trauma-focused treatments for posttraumatic stress disorder (PTSD). Social environments may be particularly important to influencing treatment retention. We examined the role of 2 support system factors in predicting treatment dropout: social control (direct efforts by loved ones to encourage veterans to participate in treatment and face distress) and symptom accommodation (changes in loved ones' behavior to reduce veterans' PTSD-related distress)...
March 2019: Journal of Consulting and Clinical Psychology
https://read.qxmd.com/read/30777026/-managing-pieces-of-a-personal-puzzle-older-people-s-experiences-of-self-management-falls-prevention-exercise-guided-by-a-digital-program-or-a-booklet
#17
Beatrice Pettersson, Maria Wiklund, Rebecka Janols, Helena Lindgren, Lillemor Lundin-Olsson, Dawn A Skelton, Marlene Sandlund
BACKGROUND: Exercise is effective in order to prevent falls in community-dwelling older people. Self-management programs have the potential to increase access and reduce costs related to exercise-based fall prevention. However, information regarding older people's views of participating in such programs is needed to support implementation. The aim of this study was to explore older people's experiences of a self-management fall prevention exercise routine guided either by a digital program (web-based or mobile) or a paper booklet...
February 18, 2019: BMC Geriatrics
https://read.qxmd.com/read/30776928/attitudes-faced-by-young-adults-using-assistive-technology-as-depicted-through-photovoice
#18
Jacquie Ripat, Roberta L Woodgate, Laura Bennett
PURPOSE: To explore how the attitudinal environment influences the participation experiences of young adults with disabilities who use assistive technology. METHODS: In this qualitative study, twenty young adults using assistive technology completed individual interviews before and after engaging in a photovoice process. Ten of the participants then took part in a focus group. Data were analyzed inductively using a thematic analysis approach. RESULTS: Analysis yielded three primary themes "seen and treated as different, assumptions made and impatience"...
February 19, 2019: Disability and Rehabilitation. Assistive Technology
https://read.qxmd.com/read/30776552/environmental-management-partner-selection-for-reverse-supply-chain-collaboration-a-sustainable-approach
#19
Kannan Govindan, P C Jha, Vernika Agarwal, Jyoti Dhingra Darbari
The Indian electronics industry is facing immense pressure to include sustainability practices in order to meet customer expectations, comply with legislation and create an edge over competitors. This growing need for inclusion of sustainability is driving original equipment manufacturers (OEMs) to collaborate with third-party reverse logistics providers (3PRLPs) to sustainably manage returns. Collaboration with 3PRLP will put OEMs in a stronger position regarding compliance with government legislation, improving upon their corporate image and customer satisfaction...
February 15, 2019: Journal of Environmental Management
https://read.qxmd.com/read/30776285/-use-of-virtual-reality-for-neurodevelopmental-disorders-a-review-of-the-state-of-the-art-and-future-agenda
#20
Mariano L Alcañiz, Elena Olmos-Raya, Luis Abad
To date, the diagnostic tools for autism spectrum disorder (ASD) have been mostly based on qualitative criteria from observational information in contexts with low ecological validity. We are witnessing a growing scientific activity that proposes the use of implicit measures for the evaluation and diagnosis of ASD. These measures are based on processes of a biological and unconscious nature, underlying the capacity of human cognition, and are obtained through the acquisition and treatment of brain, physiological and behavioral responses in order to obtain the behavioral structure of the ASD patient facing a stimulus...
2019: Medicina
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