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https://www.readbyqxmd.com/read/27916962/lightweight-sensor-authentication-scheme-for-energy-efficiency-in-ubiquitous-computing-environments
#1
Jaeseung Lee, Yunsick Sung, Jong Hyuk Park
The Internet of Things (IoT) is the intelligent technologies and services that mutually communicate information between humans and devices or between Internet-based devices. In IoT environments, various device information is collected from the user for intelligent technologies and services that control the devices. Recently, wireless sensor networks based on IoT environments are being used in sectors as diverse as medicine, the military, and commerce. Specifically, sensor techniques that collect relevant area data via mini-sensors after distributing smart dust in inaccessible areas like forests or military zones have been embraced as the future of information technology...
December 1, 2016: Sensors
https://www.readbyqxmd.com/read/27910904/melanosome-transfer-to-keratinocyte-in-the-chicken-embryonic-skin-is-mediated-by-vesicle-release-associated-with-rho-regulated-membrane-blebbing
#2
Ryosuke Tadokoro, Hidetaka Murai, Ken-Ichiro Sakai, Takahiro Okui, Yasuhiro Yokota, Yoshiko Takahashi
During skin pigmentation in amniotes, melanin synthesized in the melanocyte is transferred to keratinocytes by a particle called the melanosome. Previous studies, mostly using dissociated cultured cells, have proposed several different models that explain how the melanosome transfer is achieved. Here, using a technique that labels the plasma membrane of melanocytes within a three-dimensional system that mimics natural tissues, we have visualized the plasma membrane of melanocytes with EGFP in chicken embryonic skin...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27905145/the-public-multi-coil-information-pumcin-policy
#3
Christoph Juchem, Robin A de Graaf
PURPOSE: Multi-coil (MC) magnetic field modeling has emerged as a viable alternative to conventional field generation based on spherical harmonic shapes, and an active MC community is forming. Although all MC applications share the same modeling concept, the specific MC designs can largely differ as a result of disparities in region of interest (eg, human versus rodent), intended MR application (eg, B0 shimming versus spatial encoding), or other experimental constraints (eg, available bore space or integration with radiofrequency technology)...
December 1, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27904079/application-of-response-surface-methodology-to-estimate-the-design-space-of-pharmaceutical-diluents-for-dispensing-powdered-formulations
#4
Yasunori Miyazaki, Kozo Takayama, Tomonobu Uchino, Yoshiyuki Kagawa
Scientific approaches for dispensation are important for the quality and efficacy of drug treatments. Therefore, for the dispensation of powdered medicines, we have developed a powder blending method using a planetary centrifugal mixer (PCM) to replace the empirical manual method involving a mortar and pestle. The aim of this study was to optimize the formulation of pharmaceutical diluents for dispensing powdered medicines, using PCM. The diluents, composed of powdered lactose, crystalline lactose, and corn starch were assigned to a {3,2}-Simplex Lattice design...
2016: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27894972/transcriptome-inference-and-systems-approaches-to-polypharmacology-and-drug-discovery-in-herbal-medicine
#5
Peng Li, Jianxin Chen, Wuxia Zhang, Bangze Fu, Wei Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Herbal medicine is a concoction of numerous chemical ingredients, and it exhibits polypharmacological effects to act on multiple pharmacological targets, regulating different biological mechanisms and treating a variety of diseases. Thus, this complexity is impossible to deconvolute by the reductionist method of extracting one active ingredient acting on one biological target. AIM OF THE STUDY: To dissect the polypharmacological effects of herbal medicines and their underling pharmacological targets as well as their corresponding active ingredients...
November 25, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27891066/in-situ-evaluation-of-calcium-phosphate-nucleation-kinetics-and-pathways-during-intra-and-extrafibrillar-mineralization-of-collagen-matrices
#6
Doyoon Kim, Byeongdu Lee, Stavros Thomopoulos, Young-Shin Jun
We revealed that nucleation sites within collagen fibrils determined pathways for calcium phosphate (CaP) nucleation and its transformation, from amorphous species to crystalline plates, during the biomineralization process. Using in situ small-angle X-ray scattering (SAXS), we examined the nucleation and growth of CaP within collagen matrices and elucidated how a nucleation inhibitor, polyaspartic acid (pAsp), governs mineralization kinetics and pathways at multiple length scales. Mineralization without pAsp led initially to spherical aggregates of CaP in the entire extrafibrillar spaces...
2016: Crystal Growth & Design
https://www.readbyqxmd.com/read/27889810/rhodamine-bound-maghemite-as-a-long-term-dual-imaging-nanoprobe-of-adipose-tissue-derived-mesenchymal-stromal-cells
#7
Vratislav Cmiel, Josef Skopalik, Katerina Polakova, Jan Solar, Marketa Havrdova, David Milde, Ivan Justan, Massimiliano Magro, Zenon Starcuk, Ivo Provaznik
In the last few years, magnetically labeled cells have been intensively explored, and non-invasive cell tracking and magnetic manipulation methods have been tested in preclinical studies focused on cell transplantation. For clinical applications, it is desirable to know the intracellular pathway of nanoparticles, which can predict their biocompatibility with cells and the long-term imaging properties of labeled cells. Here, we quantified labeling efficiency, localization, and fluorescence properties of Rhodamine derivatized superparamagnetic maghemite nanoparticles (SAMN-R) in mesenchymal stromal cells (MSC)...
November 26, 2016: European Biophysics Journal: EBJ
https://www.readbyqxmd.com/read/27889258/unilateral-collaboration-the-practices-and-understandings-of-traditional-birth-attendants-in-southeastern-nigeria
#8
Magdalena Ohaja, Jo Murphy-Lawless
BACKGROUND: Despite the promotion of hospital-based maternity care as the safest option, for less developed countries, many women particularly those in the rural areas continue to patronise indigenous midwives or traditional birth attendants. Little is known about traditional birth attendants' perspectives regarding their pregnancy and birth practices. AIM: To explore traditional birth attendants' discourses of their pregnancy and birthing practices in southeast Nigeria...
November 23, 2016: Women and Birth: Journal of the Australian College of Midwives
https://www.readbyqxmd.com/read/27882268/long-term-culture-of-intestinal-cell-progenitors-an-overview-of-their-development-application-and-associated-technologies
#9
REVIEW
Andrew J Hollins, Lee Parry
PURPOSE OF REVIEW: Long-term culture of adult progenitor cells in 3D is a recently emerging technology that inhabits the space between 2D cell lines and organ slice culture. RECENT FINDINGS: Adaptations to defined media components in the wake of advances in ES and iPS cell culture has led to the identification of conditions that maintained intestinal cell progenitors in culture. These conditions retain cellular heterogeneity of the normal or tumour tissue, and the cultures have been shown to be genetically stable, such that substantial biobanks are being created from patient derived material...
2016: Current Pathobiology Reports
https://www.readbyqxmd.com/read/27871303/geographically-weighted-regression-of-knowledge-and-behaviour-determinants-to-anti-malarial-recommending-and-dispensing-practice-among-medicine-retailers-in-western-kenya-capacitating-targeted-interventions
#10
Andria Rusk, Linda Highfield, J Michael Wilkerson, Melissa Harrell, Andrew Obala, Benjamin Amick
BACKGROUND: Most patients with malaria seek treatment first in retail drug shops. Myriad studies have examined retailer behaviours and characteristics to understand the determinants to these behaviours. Geospatial methods are helpful in discovering if geographic location plays a role in the relationship between determinants and outcomes. This study aimed to discover if spatial autocorrelation exists in the relationship between determinants and retailer behaviours, and to provide specific geographic locations and target behaviours for tailoring future interventions...
November 21, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27867826/development-of-intron-polymorphism-markers-in-major-latex-like-protein-gene-for-locality-level-and-cultivar-identification-of-salvia-miltiorrhiza
#11
Hongtao Wang, Na Hao, Lei Chen, Guisheng Li
BACKGROUND: Salvia miltiorrhiza (Danshen) is one of the most widely used medicinal herbs in traditional Chinese medicine. Locality-level and cultivar identification is of great importance not only for protecting highest therapeutic effectiveness of Daodi Danshen, but also for the genetic conservation and utilization of existing S. miltiorrhiza populations. RESULTS: Intron polymorphisms including SNPs (single nucleotide polymorphisms) and indels were exploited in major latex-like protein (MLP) gene...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27865713/platensimycin-and-platencin-inspirations-for-chemistry-biology-enzymology-and-medicine
#12
REVIEW
Jeffrey D Rudolf, Liao-Bin Dong, Ben Shen
Natural products have served as the main source of drugs and drug leads, and natural products produced by microorganisms are one of the most prevalent sources of clinical antibiotics. Their unparalleled structural and chemical diversities provide a basis to investigate fundamental biological processes while providing access to a tremendous amount of chemical space. There is a pressing need for novel antibiotics with new mode of actions to combat the growing challenge of multidrug resistant pathogens. This review begins with the pioneering discovery and biological activities of platensimycin (PTM) and platencin (PTN), two antibacterial natural products isolated from Streptomyces platensis...
November 16, 2016: Biochemical Pharmacology
https://www.readbyqxmd.com/read/27862181/identification-of-biomarker-by-treatment-interactions-in-randomized-clinical-trials-with-survival-outcomes-and-high-dimensional-spaces
#13
Nils Ternès, Federico Rotolo, Georg Heinze, Stefan Michiels
Stratified medicine seeks to identify biomarkers or parsimonious gene signatures distinguishing patients that will benefit most from a targeted treatment. We evaluated 12 approaches in high-dimensional Cox models in randomized clinical trials: penalization of the biomarker main effects and biomarker-by-treatment interactions (full-lasso, three kinds of adaptive lasso, ridge+lasso and group-lasso); dimensionality reduction of the main effect matrix via linear combinations (PCA+lasso (where PCA is principal components analysis) or PLS+lasso (where PLS is partial least squares)); penalization of modified covariates or of the arm-specific biomarker effects (two-I model); gradient boosting; and univariate approach with control of multiple testing...
November 15, 2016: Biometrical Journal. Biometrische Zeitschrift
https://www.readbyqxmd.com/read/27859563/direct-estimation-of-tracer-kinetic-parameter-maps-from-highly-undersampled-brain-dynamic-contrast-enhanced-mri
#14
Yi Guo, Sajan Goud Lingala, Yinghua Zhu, R Marc Lebel, Krishna S Nayak
PURPOSE: The purpose of this work was to develop and evaluate a T1 -weighted dynamic contrast enhanced (DCE) MRI methodology where tracer-kinetic (TK) parameter maps are directly estimated from undersampled (k,t)-space data. THEORY AND METHODS: The proposed reconstruction involves solving a nonlinear least squares optimization problem that includes explicit use of a full forward model to convert parameter maps to (k,t)-space, utilizing the Patlak TK model. The proposed scheme is compared against an indirect method that creates intermediate images by parallel imaging and compressed sensing before to TK modeling...
November 17, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27851870/sms-hsl-simultaneous-multislice-aliasing-separation-exploiting-hankel-subspace-learning
#15
Suhyung Park, Jaeseok Park
PURPOSE: To develop a novel, simultaneous multislice reconstruction method that exploits Hankel subspace learning (SMS-HSL) for aliasing separation in the slice direction. METHODS: An SMS signal model with the Hankel-structured matrix was proposed. To efficiently suppress interslice leakage artifacts from a signal subspace perspective, a null space was learned from the reference data combined over all slices other than a slice of interest using singular value decomposition...
November 8, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27846446/studies-in-using-a-universal-exchange-and-inference-language-for-evidence-based-medicine-semi-automated-learning-and-reasoning-for-pico-methodology-systematic-review-and-environmental-epidemiology
#16
Barry Robson
The Q-UEL language of XML-like tags and the associated software applications are providing a valuable toolkit for Evidence Based Medicine (EBM). In this paper the already existing applications, data bases, and tags are brought together with new ones. The particular Q-UEL embodiment used here is the BioIngine. The main challenge is one of bringing together the methods of symbolic reasoning and calculative probabilistic inference that underlie EBM and medical decision making. Some space is taken to review this background...
October 17, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/27845274/potential-applications-of-antimicrobial-peptides-and-their-mimics-in-combating-caries-and-pulpal-infections
#17
REVIEW
Sui Mai, Matthew T Mauger, Li-Na Niu, Jonathan B Barnes, Solon Kao, Brian E Bergeron, Jun-Qi Ling, Franklin R Tay
: Antimicrobial peptides (AMPs) are short cationic host-defense molecules that provide the early stage of protection against invading microbes. They also have important modulatory roles and act as a bridge between innate and acquired immunity. The types and functions of oral AMPs were reviewed and experimental reports on the use of natural AMPs and their synthetic mimics in caries and pulpal infections were discussed. Natural AMPs in the oral cavity, predominantly defensins, cathelidin and histatins, possess antimicrobial activities against oral pathogens and biofilms...
November 11, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27843785/comparison-of-successful-spinal-needle-placement-between-crossed-leg-sitting-position-and-traditional-sitting-position-in-patients-undergoing-urology-surgery
#18
Sidharta K Manggala, Aida R Tantri, Darto Satoto
BACKGROUND: The patient's position during spinal anesthesia administration plays a major role in the success of spinal needle insertion into the subarachnoid space. The traditional sitting position (TSP) is the standard position for spinal anesthesia administration, but the success rate for spinal anesthesia administration in the TSP is still quite low. The crossed-leg sitting position (CLSP) is one of the alternative positions for the administration of spinal anesthesia, which can increase the degree of lumbar flexion...
August 2016: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/27831619/-the-national-agreement-as-a-space-of-consensus-for-defining-the-objectives-of-health-care-reform-and-establishing-peruvian-health-policies
#19
Edgardo Nepo-Linares, Aníbal Velásquez
After several months of arduous deliberations, the National Agreement, a policy coordination forum highest level in Peru, approved a document entitled "The objectives of health care reform." In this article it review the work done and the product reached by consensus, which includes as priorities, among others, strengthening of SIS like public insurance, implementation of a policy of multi-year investment, strengthening the protection of health rights outlined, strengthening the primary health care and improving access to safe and effective medicines...
July 2016: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/27827929/the-chemical-composition-of-essential-oils-from-cinnamomum-camphora-and-their-insecticidal-activity-against-the-stored-product-pests
#20
Shanshan Guo, Zhufeng Geng, Wenjuan Zhang, Junyu Liang, Chengfang Wang, Zhiwei Deng, Shushan Du
To investigate the chemical composition and insecticidal activity of the essential oils of certain Chinese medicinal herbs and spices, the essential oils were extracted from the stem barks, leaves, and fruits of Cinnamomum camphora (L.) Presl, which were found to possess strong fumigant toxicity against Tribolium castaneum and Lasioderma serricorne adults. The essential oils of the plants were extracted by the method of steam distillation using a Clavenger apparatus. Their composition was determined by gas chromatography/mass spectrometric (GC-MS) analyses (HP-5MS column), and their insecticidal activity was measured by seal-spaced fumigation...
November 4, 2016: International Journal of Molecular Sciences
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