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https://www.readbyqxmd.com/read/29778018/phytochemistry-and-pharmacology-of-anti-depressant-medicinal-plants-a-review
#1
REVIEW
Jeanette Martins, Brijesh S
Stress renders an individual to experience mental pressure and exhaustion which brings about feelings of anxiety, depression, anger and/or other negative emotions. Depression affects a person's state of mind, behaviour, health and is often associated with suicide. The use of anti-depressant drugs as therapeutic agents is associated with symptoms such as, delayed onset of action, side-effects, drug-drug and dietary interactions, sexual dysfunction, cardiac toxicity, etc. Thus, there is need to target these issues and improve current treatment options...
May 16, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29778004/learning-homophones-in-context-easy-cases-are-favored-in-the-lexicon-of-natural-languages
#2
Isabelle Dautriche, Laia Fibla, Anne-Caroline Fievet, Anne Christophe
Even though ambiguous words are common in languages, children find it hard to learn homophones, where a single label applies to several distinct meanings (e.g., Mazzocco, 1997). The present work addresses this apparent discrepancy between learning abilities and typological pattern, with respect to homophony in the lexicon. In a series of five experiments, 20-month-old French children easily learnt a pair of homophones if the two meanings associated with the phonological form belonged to different syntactic categories, or to different semantic categories...
May 16, 2018: Cognitive Psychology
https://www.readbyqxmd.com/read/29777983/young-infants-discrimination-of-subtle-phonetic-contrasts
#3
Megha Sundara, Céline Ngon, Katrin Skoruppa, Naomi H Feldman, Glenda Molina Onario, James L Morgan, Sharon Peperkamp
It is generally accepted that infants initially discriminate native and non-native contrasts and that perceptual reorganization within the first year of life results in decreased discrimination of non-native contrasts, and improved discrimination of native contrasts. However, recent findings from Narayan, Werker, and Beddor (2010) surprisingly suggested that some acoustically subtle native-language contrasts might not be discriminated until the end of the first year of life. We first provide countervailing evidence that young English-learning infants can discriminate the Filipino contrast tested by Narayan et al...
May 16, 2018: Cognition
https://www.readbyqxmd.com/read/29777919/brain-to-bone-what-is-the-contribution-of-the-brain-to-skeletal-homeostasis
#4
REVIEW
Anna Idelevich, Roland Baron
The brain, which governs most, if not all, physiological functions in the body, from the complexities of cognition, learning and memory, to the regulation of basal body temperature, heart rate and breathing, has long been known to affect skeletal health. In particular, the hypothalamus - located at the base of the brain in close proximity to the medial eminence, where the blood-brain-barrier is not as tight as in other regions of the brain but rather "leaky", due to fenestrated capillaries - is exposed to a variety of circulating body cues, such as nutrients (glucose, fatty acids, amino acids), and hormones (insulin, glucagon, leptin, adiponectin) [1-3]...
May 16, 2018: Bone
https://www.readbyqxmd.com/read/29777827/is-reward-prediction-error-encoding-reliable-during-development
#5
Hanna Keren, Gang Chen, Brenda Benson, Monique Ernst, Ellen Leibenluft, Nathan A Fox, Daniel S Pine, Argyris Stringaris
Reward Prediction Errors (RPEs), defined as the difference between the expected and received outcomes, are integral to reinforcement learning models and play an important role in development and psychopathology. In humans, RPE encoding can be estimated using fMRI recordings, however, a basic measurement property of RPE signals, their test-retest reliability across different time scales, remains an open question. In this paper, we examine the 3-month and 3-year reliability of RPE encoding in youth (mean age at baseline = 10...
May 16, 2018: NeuroImage
https://www.readbyqxmd.com/read/29777747/social-environment-as-a-factor-affecting-exploration-and-learning-in-pre-juvenile-rats
#6
Klaudia Modlinska, Rafał Stryjek, Anna Chrzanowska, Wojciech Pisula
Stress associated with social isolation in early life can lead to disturbances in the emotional regulation in adult rats. However, there are no reports on the impact of isolation from the mother while providing contact with peers. Under such conditions, young individuals have the opportunity to interact with others, are able to develop social behaviour, etc. Yet, there is no stimulation and care provided by the mother. We examined the relative impact of maternal contact and sibling contact in the rarely studied pre-juvenile (3rd and 4th week post birth) period on subsequent development...
May 16, 2018: Behavioural Processes
https://www.readbyqxmd.com/read/29777741/effect-of-exposure-to-similar-flavours-in-sensory-specific-satiety-implications-for-eating-behaviour
#7
Ana González, Sergio Andrés Recio, Jesús Sánchez, Marta Gil, Isabel de Brugada
Sensory-specific satiety (SSS) refers to a decline in pleasantness of eaten foods in comparison to other non-ingested meals. Although SSS is specific to the eaten food, it can also generalize to other meals that share similar properties to the satiated food. It is possible that this phenomenon could become more specific after extensive experience, as repeated exposure to an assortment of similar food could cause perceptual learning (i.e. an increase in the distinctiveness of each specific item). This in turn would reduce generalization from the consumed food to other similar products, so they will be more readily consumed...
May 16, 2018: Appetite
https://www.readbyqxmd.com/read/29777650/modeling-dengue-vector-population-using-remotely-sensed-data-and-machine-learning
#8
Juan M Scavuzzo, Francisco Trucco, Manuel Espinosa, Carolina B Tauro, Marcelo Abril, Carlos M Scavuzzo, Alejandro C Frery
Mosquitoes are vectors of many human diseases. In particular, Aedes ægypti (Linnaeus) is the main vector for Chikungunya, Dengue, and Zika viruses in Latin America and it represents a global threat. Public health policies that aim at combating this vector require dependable and timely information, which is usually expensive to obtain with field campaigns. For this reason, several efforts have been done to use remote sensing due to its reduced cost. The present work includes the temporal modeling of the oviposition activity (measured weekly on 50 ovitraps in a north Argentinean city) of Aedes ægypti (Linnaeus), based on time series of data extracted from operational earth observation satellite images...
May 16, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29777609/evaluation-of-the-clinical-learning-experience-of-nursing-students-a-cross-sectional-descriptive-study
#9
Elena Gurková, Katarína Žiaková
The purpose of the cross-sectional descriptive study was to explore and compare the students' experiences of the clinical environment and supervision in Slovakia. Students' clinical learning experience were measured by the valid and reliable clinical learning instrument. A higher frequency of successful supervisory experience was found in the universities which provided accredited mentor preparation programmes or courses and individualised supervisory approaches. Frequency of supervision meetings, the occupational title of a supervisor and mainly the supervision model have an association with students 'perceptions of different domains of clinical learning environment...
May 18, 2018: International Journal of Nursing Education Scholarship
https://www.readbyqxmd.com/read/29777580/context-encoding-enables-machine-learning-based-quantitative-photoacoustics
#10
Thomas Kirchner, Janek Gröhl, Lena Maier-Hein
Real-time monitoring of functional tissue parameters, such as local blood oxygenation, based on optical imaging could provide groundbreaking advances in the diagnosis and interventional therapy of various diseases. Although photoacoustic (PA) imaging is a modality with great potential to measure optical absorption deep inside tissue, quantification of the measurements remains a major challenge. We introduce the first machine learning-based approach to quantitative PA imaging (qPAI), which relies on learning the fluence in a voxel to deduce the corresponding optical absorption...
May 2018: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29777530/-power-in-mobility-parent-and-therapist-perspectives-of-the-experiences-of-children-learning-to-use-powered-mobility
#11
Lisa K Kenyon, W Ben Mortenson, William C Miller
AIM: The aim of this study was to gain insights, from the perspectives of both parents and pediatric therapists, into the experiences of children learning to use a power mobility device. METHOD: The purposive sample included 33 participants: 14 parents of children who were learning, or had learned, to use a power mobility device and 19 pediatric occupational therapists or physical therapists. Data were gathered face-to-face via seven focus groups consisting of either parents or therapists, and eight one-on-one interviews...
May 18, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29777493/transgenic-mice-carrying-glud2-as-a-tool-for-studying-the-expressional-and-the-functional-adaptation-of-this-positive-selected-gene-in-human-brain-evolution
#12
Andreas Plaitakis, Dimitra Kotzamani, Zoe Petraki, Maria Delidaki, Vagelis Rinotas, Ioannis Zaganas, Eleni Douni, Kyriaki Sidiropoulou, Cleanthe Spanaki
Human evolution is characterized by brain expansion and up-regulation of genes involved in energy metabolism and synaptic transmission, including the glutamate signaling pathway. Glutamate is the excitatory transmitter of neural circuits sub-serving cognitive functions, with glutamate-modulation of synaptic plasticity being central to learning and memory. GLUD2 is a novel positively-selected human gene involved in glutamatergic transmission and energy metabolism that underwent rapid evolutionary adaptation concomitantly with prefrontal cortex enlargement...
May 18, 2018: Neurochemical Research
https://www.readbyqxmd.com/read/29777463/considerations-that-will-determine-if-competency-based-assessment-is-a-sustainable-innovation
#13
W Dale Dauphinee, John R Boulet, John J Norcini
Educational assessment for the health professions has seen a major attempt to introduce competency based frameworks. As high level policy developments, the changes were intended to improve outcomes by supporting learning and skills development. However, we argue that previous experiences with major innovations in assessment offer an important road map for developing and refining assessment innovations, including careful piloting and analyses of their measurement qualities and impacts. Based on the literature, numerous assessment workshops, personal interactions with potential users, and our 40 years of experience in implementing assessment change, we lament the lack of a coordinated approach to clarify and improve measurement qualities and functionality of competency based assessment (CBA)...
May 18, 2018: Advances in Health Sciences Education: Theory and Practice
https://www.readbyqxmd.com/read/29777359/regulatory-mechanisms-of-thiol-based-redox-sensors-lessons-learned-from-structural-studies-on-prokaryotic-redox-sensors
#14
REVIEW
Sang Jae Lee, Dong-Gyun Kim, Kyu-Yeon Lee, Ji Sung Koo, Bong-Jin Lee
Oxidative stresses, such as reactive oxygen species, reactive electrophilic species, reactive nitrogen species, and reactive chlorine species, can damage cellular components, leading to cellular malfunction and death. In response to oxidative stress, bacteria have evolved redox-responsive sensors that enable them to simultaneously monitor and eradicate potential oxidative stress. Specifically, redox-sensing transcription regulators react to oxidative stress by means of modifying the thiol groups of cysteine residues, functioning as part of an efficient survival mechanism for many bacteria...
May 17, 2018: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/29777356/visuospatial-abilities-and-fine-motor-experiences-influence-acquisition-and-maintenance-of-fundamentals-of-laparoscopic-surgery-fls-task-performance
#15
Cuan M Harrington, Patrick Dicker, Oscar Traynor, Dara O Kavanagh
BACKGROUND: Minimally invasive surgery poses a unique learning curve due to the requirement for non-intuitive psychomotor skills. The fundamentals of laparoscopic surgery (FLS) program trains and certifies residents in such skills. However, innate predictors of FLS performance and maintenance remain to be described. This single-centre observational study aimed to assess for candidate factors influencing the acquisition and maintenance of FLS performance amongst a surgically naïve cohort...
May 18, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29777319/what-does-sex-have-to-do-with-it-the-role-of-sex-as-a-biological-variable-in-the-development-of-posttraumatic-stress-disorder
#16
REVIEW
Sara L Kornfield, Liisa Hantsoo, C Neill Epperson
PURPOSE OF REVIEW: This review highlights the neurobiological aspects of sex differences in posttraumatic stress disorder (PTSD), specifically focusing on the physiological responses to trauma and presents evidence supporting hormone and neurosteroid/peptide differences from both preclinical and clinical research. RECENT FINDINGS: While others have suggested that trauma type or acute emotional reaction are responsible for women's disproportionate risk to PTSD, neither of these explanations fully accounts for the sex differences in PTSD...
May 18, 2018: Current Psychiatry Reports
https://www.readbyqxmd.com/read/29777175/artificial-intelligence-in-radiology
#17
REVIEW
Ahmed Hosny, Chintan Parmar, John Quackenbush, Lawrence H Schwartz, Hugo J W L Aerts
Artificial intelligence (AI) algorithms, particularly deep learning, have demonstrated remarkable progress in image-recognition tasks. Methods ranging from convolutional neural networks to variational autoencoders have found myriad applications in the medical image analysis field, propelling it forward at a rapid pace. Historically, in radiology practice, trained physicians visually assessed medical images for the detection, characterization and monitoring of diseases. AI methods excel at automatically recognizing complex patterns in imaging data and providing quantitative, rather than qualitative, assessments of radiographic characteristics...
May 17, 2018: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/29777133/selective-improvements-in-balancing-associated-with-offline-periods-of-spaced-training
#18
Antonino Casabona, Maria Stella Valle, Carlo Cavallaro, Gabriele Castorina, Matteo Cioni
Benefits from post-training memory processing have been observed in learning many procedural skills. Here, we show that appropriate offline periods produce a performance gain during learning to stand on a multiaxial balance board. The tilt angle and the area of sway motion of the board were much more reduced in participants performing a training spaced by an interval of one day with respect to participants executing the same amount of practice over a concentrated period. In particular, offline memory encoding was specifically associated with the motion along the anterior-posterior direction, the spatio-temporal dynamics, and the frequency contents of the board sway...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29777110/using-network-analysis-for-the-prediction-of-treatment-dropout-in-patients-with-mood-and-anxiety-disorders-a-methodological-proof-of-concept-study
#19
Wolfgang Lutz, Brian Schwartz, Stefan G Hofmann, Aaron J Fisher, Kristin Husen, Julian A Rubel
There are large health, societal, and economic costs associated with attrition from psychological services. The recently emerged, innovative statistical tool of complex network analysis was used in the present proof-of-concept study to improve the prediction of attrition. Fifty-eight patients undergoing psychological treatment for mood or anxiety disorders were assessed using Ecological Momentary Assessments four times a day for two weeks before treatment (3,248 measurements). Multilevel vector autoregressive models were employed to compute dynamic symptom networks...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29777043/new-advances-in-amblyopia-therapy-i-binocular-therapies-and-pharmacologic-augmentation
#20
Courtney L Kraus, Susan M Culican
Amblyopia therapy options have traditionally been limited to penalisation of the non-amblyopic eye with either patching or pharmaceutical penalisation. Solid evidence, mostly from the Pediatric Eye Disease Investigator Group, has validated both number of hours a day of patching and days per week of atropine use. The use of glasses alone has also been established as a good first-line therapy for both anisometropic and strabismic amblyopia. Unfortunately, visual acuity equalisation or even improvement is not always attainable with these methods...
May 18, 2018: British Journal of Ophthalmology
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