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https://www.readbyqxmd.com/read/28103555/robust-head-pose-estimation-based-on-partially-latent-mixture-of-linear-regressions
#1
Vincent Drouard, Radu Horaud, Antoine Deleforge, Sileye Ba, Georgios Evangelidis
Head-pose estimation has many applications, such as social event analysis, human-robot and human-computer interaction, driving assistance, and so forth. Head-pose estimation is challenging because it must cope with changing illumination conditions, variabilities in face orientation and in appearance, partial occlusions of facial landmarks, as well as bounding-box-to- face alignment errors. We propose tu use a mixture of linear regressions with partially-latent output. This regression method learns to map high-dimensional feature vectors (extracted from bounding boxes of faces) onto the joint space of head-pose angles and bounding-box shifts, such that they are robustly predicted in the presence of unobservable phenomena...
January 16, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28103515/strong-synergistic-effects-in-pla-pcl-blends-impact-of-pla-matrix-viscosity
#2
Aleksandra Ostafinska, Ivan Fortelný, Jiří Hodan, Sabina Krejčíková, Martina Nevoralová, Jana Kredatusová, Zdeněk Kruliš, Jiří Kotek, Miroslav Šlouf
Blends of two biodegradable polymers, poly(lactic acid) (PLA) and poly(ϵ-caprolactone) (PCL), with strong synergistic improvement in mechanical performance were prepared by melt-mixing using the optimized composition (80/20) and the optimized preparation procedure (a melt-mixing followed by a compression molding) according to our previous study. Three different PLA polymers were employed, whose viscosity decreased in the following order: PLC ≈ PLA1 > PLA2 > PLA3. The blends with the highest viscosity matrix (PLA1/PCL) exhibited the smallest PCL particles (d∼0...
January 10, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28103335/construction-of-a-low-cost-homemade-laparoscopic-simulator-for-use-in-a-caribbean-setting
#3
S Persaud, I Hosein, D Dan, P S Griffith
Introduction: To the modern surgeon in training, the acquisition of laparoscopic skills is essential. Laparoscopic simulators are effective but in the often resource poor setting of the Caribbean, the cost of these simulators is often prohibitive. We describe the construction of a simulator which is cheap, easy to assemble and effective. It is also relatively easy to mass produce for use in training programmes across the region. Materials and methods: The simulator is constructed using a semi-transparent plastic box...
June 13, 2016: West Indian Medical Journal
https://www.readbyqxmd.com/read/28103115/involvement-of-autophagy-in-nk-cell-development-and-function
#4
Alejandro López-Soto, José Manuel Bravo-San Pedro, Guido Kroemer, Lorenzo Galluzzi, Segundo Gonzalez
Natural killer (NK) cells are the prototypical members of the recently identified family of innate lymphoid cells (ILCs). Thanks to their cytotoxic and secretory functions, NK cells play a key role in the immune response to cells experiencing various forms of stress, including viral infection and malignant transformation. Autophagy is a highly conserved network of degradative pathways that participate in the maintenance of cellular and organismal homeostasis as they promote adaptation to adverse microenvironmental conditions...
January 19, 2017: Autophagy
https://www.readbyqxmd.com/read/28102940/effect-of-cast-modification-on-denture-base-adaptation-following-maxillary-complete-denture-processing
#5
Mohammed E Sayed, Amit Porwal, David Ehrenberg, Saul Weiner
PURPOSE: To investigate the effect of cast modifications on denture base adaptation in coronal and sagittal projections following maxillary complete denture processing. MATERIALS AND METHODS: A total of 60 edentulous maxillary casts (n = 10) were distributed among six groups. Group 1 was the control group with no modification, groups 2 through 6 included a butterfly postdam preparation, groups 3 and 4 also included a 10-mm wide/4-mm deep box with addition of four round holes in group 4, and groups 5 and 6 also included a 20-mm wide/4-mm deep box with addition of four round holes in group 6...
January 19, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28102866/the-dna-target-determines-the-dimerization-partner-selected-by-bhlhz-like-hybrid-proteins-ahrjun-and-arntfos
#6
Ichiro Inamoto, Gang Chen, Jumi A Shin
The molecular basis of protein-partner selection and DNA binding of the basic helix-loop-helix (bHLH) and basic region-leucine zipper (bZIP) superfamilies of dimeric transcription factors is fundamental toward understanding gene regulation. Because these families share structural similarities, we swapped the bHLH and leucine zipper (LZ) modules between families to uncover how individual modules influence protein-partnering and protein:DNA complexation. We previously described ArntFos, a bHLHZ-like hybrid of the bHLH domain from the bHLH/PAS protein Arnt and LZ from the bZIP protein c-Fos, binding to the Arnt E-box site (TCACGTGA) as a homodimer...
January 19, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28102517/effects-of-snailase-treatment-on-wettability-of-raw-cotton-yarns-in-pre-wetting-process-of-foam-sizing
#7
Bo Zhu, Jianli Liu, Weidong Gao
The main objective of the present study was to meticulously investigate an inclusive set of physicochemical properties of pre-wetted cotton yarns and optimize the snailase treatment for raw cotton yarns. Based on single factor design, effects of snailase treatment on the removal percentage of pectins and cotton waxes, wettability, and weight loss were studied in different snailase concentrations and the optimal concentration range was obtained. The Box-Behnken design was employed to determine the optimal condition of snailase treatment for achieving the maximum wettability of cotton yarns...
January 19, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28102058/neonatal-immune-state-is-influenced-by-maternal-allergic-rhinitis-and-associated-with-regulatory-t-cells
#8
Lu Tan, Jing Ou, Zezhang Tao, Yonggang Kong, Yu Xu
PURPOSE: Maternal influences contribute to the origin of allergic diseases, but the mechanisms are not clear. The current literature prompted the role of epigenetics in the development of allergic diseases. We sought to investigate the roles of regulatory T (Treg) cells and Forkhead box p3 (Foxp3) DNA methylation in the process of maternal transmission of allergic rhinitis (AR) susceptibility. METHODS: BALB/c female mice (AR mother) were sensitized by intraperitoneal injection of Dermatophagoides pteronyssinus (Der p) 1 on day 1 and 7...
March 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28101786/evaluation-of-t-regulatory-lymphocytes-transcription-factors-in-htlv-1-associated-myelopathy-tropical-spastic-paraparesis-ham-tsp-patients
#9
Sanaz Ahmadi Ghezeldasht, Hamed Sadeghian, Mahmoud Reza Azarpazhooh, Seyyed Ali Akbar Shamsian, Houshang Rafatpanah, Mahmood Mahmoodi, Seyyed Abdolrahim Rezaee
HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP) is an aggressive neurological disease. The CD4(+)CD25(+) T cell population plays pivotal roles in the maintenance of immunological tolerance and prevention of such autoimmune diseases. In the current study, proviral load (PVL), factor forkhead box p3 (Foxp3), and glucocorticoid-induced tumor necrosis factor receptor-related protein (GITR) gene expression and regulatory T cells (Tregs) counts of 21 HAM/TSP patients and 16 HTLV-1 healthy carriers (ACs) were measured using real-time PCR, TaqMan method, and flow cytometry...
January 18, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28101727/reliable-prediction-of-adsorption-isotherms-via-genetic-algorithm-molecular-simulation
#10
L LoftiKatooli, A Shahsavand
Conventional molecular simulation techniques such as grand canonical Monte Carlo (GCMC) strictly rely on purely random search inside the simulation box for predicting the adsorption isotherms. This blind search is usually extremely time demanding for providing a faithful approximation of the real isotherm and in some cases may lead to non-optimal solutions. A novel approach is presented in this article which does not use any of the classical steps of the standard GCMC method, such as displacement, insertation, and removal...
January 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28101726/development-of-timolol-loaded-galactosylated-chitosan-nanoparticles-and-evaluation-of-their-potential-for-ocular-drug-delivery
#11
Ruobing Zhao, Jing Li, Jingyi Wang, Zhenya Yin, Yongtao Zhu, Wei Liu
This study was conducted to develop timolol maleate (TM)-loaded galactosylated chitosan (GC) nanoparticles (NPs) (TM-GC-NPs) followed by optimization via a four-level and three-factor Box-Behnken statistical experimental design. The optimized nanoparticles showed a particle size of 213.3 ± 6.83 nm with entrapment efficiency of 38.58 ± 1.31% and drug loading of 17.72 ± 0.28%. The NPs were characterized with respect to zeta potential, pH, surface morphology, and differential scanning calorimetry (DSC)...
January 18, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28101194/inhibition-of-nedd8-and-fat10-ligase-activities-through-the-degrading-enzyme-nedd8-ultimate-buster-1-a-potential-anticancer-approach
#12
Ka-Liong Tan, Francesco Pezzella
The capabilities of tumour cells to survive through deregulated cell cycles and evade apoptosis are hallmarks of cancer. The ubiquitin-like proteins (UBL) proteasome system is important in regulating cell cycles via signaling proteins. Deregulation of the proteasomal system can lead to uncontrolled cell proliferation. The Skp, Cullin, F-box containing complex (SCF complex) is the predominant E3 ubiquitin ligase, and has diverse substrates. The ubiquitin ligase activity of the SCF complexes requires the conjugation of neural precursor cell expressed, developmentally down-regulated 8 (NEDD8) to cullin proteins...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101191/microrna-212-suppresses-the-proliferation-and-migration-of-osteosarcoma-cells-by-targeting-forkhead-box-protein-a1
#13
Jian Liu, Bohua Chen, Bin Yue, Junde Yang
MicroRNAs (miRNAs) are a class of small non-coding RNAs that function as critical gene regulators by targeting the 3' untranslated region (UTR) of mRNA, causing translational repression or mRNA degradation. Deregulation of specific miRNAs, including miR-212, has been identified in patients with osteosarcoma. However, the underlying mechanism is yet to be fully elucidated. The present study aimed to reveal the regulatory mechanism of miR-212 in osteosarcoma cell viability and migration. Quantitative polymerase chain reaction data revealed that miR-212 was significantly downregulated in osteosarcoma tissues compared with normal bone tissues...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28101181/microrna-351-inhibits-denervation-induced-muscle-atrophy-by-targeting-traf6
#14
Qianru He, Jiaying Qiu, Ming Dai, Qingqing Fang, Xiaoqing Sun, Yanpei Gong, Fei Ding, Hualin Sun
MicroRNAs (miRs) have been observed to be involved in the modulation of various physiopathological processes. However, the impacts of miRNAs on muscle atrophy have not been fully investigated. In the present study, the results demonstrated that miR-351 was differentially expressed in the tibialis anterior (TA) muscle at various times following sciatic nerve transection, and the time-dependent expression profile of miR-351 was inversely correlated with that of tumor necrosis factor receptor-associated factor 6 (TRAF6) at the mRNA and protein levels...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100873/microrna-10a-targets-t-box-5-to-inhibit-the-development-of-cardiac-hypertrophy
#15
Dan Wang, Guanqun Zhai, Yangfei Ji, Haiyun Jing
The mechanism of cardiac hypertrophy involving microRNAs (miRNAs) is attracting increasing attention. Our study aimed to investigate the role of miR-10a in cardiac hypertrophy development and the underlying regulatory mechanism.Transverse abdominal aortic constriction (TAAC) surgery was performed to establish a cardiac hypertrophy rat model, and angiotensin II (AngII) was used to induce cardiac hypertrophy in cultured neonatal rat cardiomyocytes. Expression of T-box 5 (TBX5) and miR-10a was altered by cell transfection of siRNA or miRNA mimic/inhibitor...
January 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28100846/regulatory-lymphocytes-in-thyroid-orbitopathy-and-autoimmune-thyroid-diseases
#16
Marta Siomkajło, Jarosław Dybko, Jacek Daroszewski
Thyroid orbitopathy (OT), as an organ‑specific autoimmune disease, is a result of immune dysregulation leading to loss of control over inflammation directed against self‑antigens. The source of the autoreactive lymphocytes is the impairment of central tolerance as well as their induction on the periphery by modified or sequestered by that time antigens. Active suppression by the various subpopulations of regulatory lymphocytes (Lreg) acts as a counterbalance to the proinflammatory factors and is aimed at dampening pathological reaction...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28100331/-hmgb1-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway-and-role-of-vitamin-d-in-asthmatic-mice
#17
Jun-Ying Qiao, Li Song, Yan-Li Zhang, Bin Luan
OBJECTIVE: To investigate the changes in the mRNA and protein expression of high-mobility group box 1 (HMGB1), Toll-like receptor 4 (TLR4), and nuclear factor-kappa B (NF-κB) in lung tissues of asthmatic mice and the interventional effect of vitamin D. METHODS: A total of 48 BALB/c mice were randomly divided into control group, asthma group, and 1,25-(OH)2D3 intervention group, with 16 mice in each group. An animal model of asthma was established, and lung tissue samples were taken in each group at weeks 1 and 2 of ovalbumin challenging...
January 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28100048/unanticipated-stickiness-of-%C3%AE-pinene
#18
Hilary M Chase, Junming Ho, Mary Alice Upshur, Regan J Thomson, Victor S Batista, Franz M Geiger
Hilary M. Chase1#, Junming Ho2#, Mary Alice Upshur1, Regan J. Thomson1, Victor S. Batista3, Franz M. Geiger1* 1Department of Chemistry, Northwestern University, Evanston, IL. 60208, United States; 2 Agency for Science, Technology and Research, Institute of High Performance Computing, 1 Fusionopolis Way #16-16 Connexis North, Singapore 138632; 3Department of Chemistry, Yale University, P.O. Box 208107, New Haven, CT. 06520, United States # These authors contributed equally to this work. *corresponding author: geigerf@chem...
January 19, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28100033/relaxin-3-inputs-target-hippocampal-interneurons-and-deletion-of-hilar-relaxin-3-receptors-in-floxed-rxfp3-mice-impairs-spatial-memory
#19
M Haidar, G Guèvremont, C Zhang, Rad Bathgate, E Timofeeva, C M Smith, A L Gundlach
Hippocampus is innervated by γ-aminobutyric acid (GABA) 'projection' neurons of the nucleus incertus (NI), including a population expressing the neuropeptide, relaxin-3 (RLN3). In studies aimed at gaining an understanding of the role of RLN3 signaling in hippocampus via its Gi/o -protein-coupled receptor, RXFP3, we examined the distribution of RLN3-immunoreactive nerve fibres and RXFP3 mRNA-positive neurons in relation to hippocampal GABA neuron populations. RLN3-positive elements were detected in close-apposition with a substantial population of somatostatin (SST)- and GABA-immunoreactive neurons, and a smaller population of parvalbumin- and calretinin-immunoreactive neurons in different hippocampal areas, consistent with the relative distribution patterns of RXFP3 mRNA and these marker transcripts...
January 18, 2017: Hippocampus
https://www.readbyqxmd.com/read/28099966/involvement-of-xbp1s-in-blue-light-induced-a2e-containing-retinal-pigment-epithelium-cell-death
#20
Bing Lu, Pengfei Zhang, Minwen Zhou, Wenqiu Wang, Qing Gu, Jingyang Feng, Xueting Luo, Xiangjun Sun, Fenghua Wang, Xiaodong Sun
PURPOSE: Retinal pigment epithelium (RPE) cell dysfunction is essential to the development of retinal degenerative disease. This study was designed to investigate how spliced X-box-binding protein 1 (XBP1s) regulates different modes of RPE cell death in vitro. METHODS: Human ARPE19 cells were incubated with 25 μM N-retinylidene-N-retinylethanolamine (A2E) and irradiated with blue light. Expressions of glucose-regulated protein 78 (GRP78) and XBP1s were detected by real-time quantitative PCR and Western blot...
January 19, 2017: Ophthalmic Research
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