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https://www.readbyqxmd.com/read/28432791/immediate-versus-delayed-postpartum-insertion-of-contraceptive-implant-for-contraception
#1
REVIEW
Jen Sothornwit, Yuthapong Werawatakul, Srinaree Kaewrudee, Pisake Lumbiganon, Malinee Laopaiboon
BACKGROUND: The spacing of pregnancies has a positive impact on maternal and newborn health. The progestin contraceptive implant, which is a long-acting, reversible method of contraception, has a well-established low failure rate that is compatible with tubal sterilization. The standard provision of contraceptive methods on the first postpartum visit may put some women at risk of unintended pregnancy, either due to loss to follow-up or having sexual intercourse prior to receiving contraception...
April 22, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28432384/the-probability-of-object-scene-co-occurrence-influences-object-identification-processes
#2
Geneviève Sauvé, Mariane Harmand, Léa Vanni, Mathieu B Brodeur
Contextual information allows the human brain to make predictions about the identity of objects that might be seen and irregularities between an object and its background slow down perception and identification processes. Bar and colleagues modeled the mechanisms underlying this beneficial effect suggesting that the brain stocks information about the statistical regularities of object and scene co-occurrence. Their model suggests that these recurring regularities could be conceptualized along a continuum in which the probability of seeing an object within a given scene can be high (probable condition), moderate (improbable condition) or null (impossible condition)...
April 21, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28432309/fano-resonance-with-high-local-field-enhancement-under-azimuthally-polarized-excitation
#3
Wuyun Shang, Fajun Xiao, Weiren Zhu, Hongsen He, Malin Premaratne, Ting Mei, Jianlin Zhao
Being an enabling technology for applications such as ultrasensitive biosensing and surface enhanced spectroscopy, enormous research interests have been focused on further boosting the local field enhancement at Fano resonance. Here, we demonstrate a plasmonic Fano resonance resulting from the interference between a narrow magnetic dipole mode and a broad electric dipole mode in a split-ring resonator (SRR) coupled to a nanoarc structure. Strikingly, when subjected to an azimuthally polarized beam (APB) excitation, the intensity enhancement becomes more than 60 times larger than that for a linearly polarized beam (LPB)...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28432166/the-lazarus-phenomenon-spontaneous-cardioversion-after-termination-of-resuscitation-in-a-scottish-hospital
#4
Benjamin Spowage-Delaney, Christopher T Edmunds, Jamie G Cooper
A 66-year-old man suffered a ventricular fibrillation cardiac arrest after an episode of chest pain. Despite advanced life support, his condition deteriorated; the situation was considered irrecoverable and resuscitation was discontinued. The patient was observed for about 5 min with irregular agonal gasping respirations evident but no palpable pulse. A gradual increase in the regularity of breathing pattern heralded the return of spontaneous circulation. An inferior myocardial infarction was diagnosed. Primary percutaneous coronary intervention was performed...
April 21, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28431954/isolated-intracranial-fibromuscular-dysplasia-of-the-posterior-cerebral-artery
#5
Min-Ju Yeo, Ho-Yeong Jeon, Min-Ju Cha, Hye-Yeon Jang, Sang-Gil Lee, Ji Seon Kim, Sung-Hyun Lee, Sang-Soo Lee, Dong-Ick Shin
Fibromuscular dysplasia (FMD) is a nonatherosclerotic, noninflammatory arterial disease that most commonly affects the renal and internal carotid arteries, but intracranial FMD is very rare. We report a patient with FMD involving the posterior cerebral arteries (PCAs). A 24year old female was presented with a 4day history of right homonymous hemianopsia with throbbing headache in the left temporo-occipital area. The brain magnetic resonance imaging (MRI) revealed an acute ischemic stroke in the left PCA territory, while the Time of Flight (TOF) magnetic resonance angiogram (MRA) showed segmental luminal irregularities in the left proximal PCA...
April 18, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28431355/genome-wide-identification-and-analysis-of-the-populus-trichocarpa-tify-gene-family
#6
Yue Wang, Feng Pan, Danmei Chen, Wenyuan Chu, Huanlong Liu, Yan Xiang
The plant-specific TIFY proteins are widely present in land plants and play the important roles in the regulation of plant stress-responses. In this study, we carried out a bioinformatics analysis of TIFY genes in Populus trichocarpa by determining the phylogenetic relationship, chromosomal location and gene structure and expression profiles analysis under stresses. The 24 TIFY genes were identified and classified into four subfamilies (ZML, JAZ, PPD and TIFY). The 24 TIFY genes were irregularly located on 13 of the 19 chromosomes; ten gene pairs were involved in large-scale interchromosomal segmental duplication events; we identified 17 collinear TIFY gene pairs in the Populus trichocarpa genome...
April 13, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28431164/low-activity-microstates-during-sleep
#7
Hiroyuki Miyawaki, Yazan N Billeh, Kamran Diba
Study Objectives: To better understand the distinct activity patterns of the brain during sleep, we observed and investigated periods of diminished oscillatory and population spiking activity lasting for seconds during non-REM sleep, which we call "LOW" activity sleep. Methods: We analyzed spiking and local field potential (LFP) activity of hippocampal CA1 region alongside neocortical electroencephalogram (EEG) and electromyogram (EMG) in 19 sessions from four male Long-Evans rats (262-363g) during natural wake/sleep across the 24-hr cycle, as well as data from other brain regions obtained from http://crcns...
April 18, 2017: Sleep
https://www.readbyqxmd.com/read/28430732/noninvasive-rcm-for-differentiation-of-melanotic-macules-from-melanocytic-lesions-blinded-evaluation-of-a-series-of-42-pigmented-macules
#8
Martin Laimer, Edith Arzberger, Clara-Anna Kirchner, Christine Prodinger, Rainer Hofmann-Wellenhof, Verena Ahlgrimm-Siess
BACKGROUND: Differentiation of melanotic macules from melanocytic lesions, most importantly of melanoma, is a common problem on clinical-dermoscopic examination. OBJECTIVE: To assess the value of noninvasive reflectance confocal microscopy (RCM) in the differential diagnosis of melanotic macules and melanocytic lesions. PATIENTS AND METHODS: Reflectance confocal microscopy images of 42 pigmented macules on mucocutaneous junctions of genitalia and lips, including 31 melanotic macules, 6 nevi, and 5 melanomas, were retrospectively and independently assessed in a blinded manner by one expert observer and 2 less experienced observers together...
April 19, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28430244/numerical-optimization-platform-for-precision-glass-molding-by-the-simplex-algorithm
#9
Weidong Liu, Liangchi Zhang
Precision glass molding (PGM) can fabricate aspherical lens and irregular optical products in a single step, but its applicability is currently limited by the thermally induced residual stresses and lens shape derivation after molding. To remove this barrier, this paper develops a numerical optimization platform for PGM based on a simplex algorithm and finite element simulation. It was found that the platform can effectively reduce the residual stress in a molded lens through cooling process optimization and minimize the lens shape derivation by die shape compensation...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430241/probing-the-germination-kinetics-of-ethanol-treated-bacillus-thuringiensis-spores
#10
Guiwen Wang, Huanjun Chen, Xiaochun Wang, Lixin Peng, Yuan Peng, Yong-Qing Li
Bacillus thuringiensis (Bt) is the most widely used microbial insecticide. To clarify the mechanism of bacterial resistance to ethanol toxicity, the present study investigated the effects of 70% (v/v) ethanol at a moderate temperature (65°C) on Bt spore germination by single-cell Raman spectroscopy and differential interference contrast microscopy. We found that over 80% of Bt spores were inviable after 30 min of treatment. Moreover, ethanol treatment affected spore germination; the time for initiation of rapid calcium dipicolinate (CaDPA) release (i...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430227/digital-micromirror-device-as-programmable-rough-particle-in-interferometric-particle-imaging
#11
M Fromager, K Aït Ameur, M Brunel
The 2D autocorrelation of the projection of an irregular rough particle can be estimated using the analysis of its interferometric out-of-focus image. We report the development of an experimental setup that creates speckle-like patterns generated by "programmable" rough particles of desired-shape. It should become an important tool for the development of new setups, configurations, and algorithms in interferometric particle imaging.
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430043/tuning-neural-phase-entrainment-to-speech
#12
Simone Falk, Cosima Lanzilotti, Daniele Schön
Musical rhythm positively impacts on subsequent speech processing. However, the neural mechanisms underlying this phenomenon are so far unclear. We investigated whether carryover effects from a preceding musical cue to a speech stimulus result from a continuation of neural phase entrainment to periodicities that are present in both music and speech. Participants listened and memorized French metrical sentences that contained (quasi-)periodic recurrences of accents and syllables. Speech stimuli were preceded by a rhythmically regular or an irregular musical cue...
April 21, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28429501/formation-of-macromolecules-in-wheat-gluten-starch-mixtures-during-twin-screw-extrusion-effect-of-different-additives
#13
Kaiqiang Wang, Cheng Li, Bingzhi Wang, Wen Yang, Shuizhong Luo, Yanyan Zhao, Shaotong Jiang, Dongdong Mu, Zhi Zheng
BACKGROUND: Wheat gluten comprises a good quality and inexpensive vegetable protein with an ideal amino acid composition. To expand the potential application of wheat gluten in the food industry, the effect of different additives on the physicochemical and structural properties of wheat gluten/starch mixtures during twin-screw extrusion was investigated. RESULTS: Macromolecules were observed to form in wheat gluten/starch mixtures during twin-screw extrusion, which may be ascribed to the formation of new disulfide bonds and non-covalent interactions, as well as Maillard reaction products...
April 21, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28429135/clinical-characteristics-of-patients-with-suspected-cardiac-chest-pain-and-angiographically-normal-coronary-arteries-in-a%C3%A2-secondary-care-hospital
#14
T S de Lange, R Y G Tijssen, P Damman, P F M M van Bergen
BACKGROUND: An important number of patients with suspected cardiac chest pain have non-obstructive coronary artery disease. Our purpose was to describe the clinical characteristics of patients with normal or near-normal coronary arteries in routine cardiological practice in a secondary care hospital. METHODS: In 2013, consecutive patients referred for invasive coronary angiography with suspected cardiac chest pain were analysed at a single-centre (Westfriesgasthuis, Hoorn, the Netherlands)...
April 20, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28429074/ultrastructure-of-pheochromocytoma-undescribed-morphologic-features
#15
A Beiras Fernandez, A Kornberger, M Fraga, C F Vahl, A Beiras
We examined samples of human pheochromocytoma from 11 patients aged 30-70 years including one case of malignant pheochromocytoma with a view to identifying previously unreported ultrastructural details.We identified two types of nuclear inclusions consisting of irregularly shaped singular or multiple granulofibrillar formations with a typical concentric halo, on the one hand, and accumulations of egg-shaped structures consisting of granules and microfilaments, on the other. In some of the tumor cells, membrane-covered inclusions containing parallel laminar elements arranged in a paracrystalline, periodic fashion, or mega-mitrochondriae characterized by increased electrodensity of their matrix, and fibrillary material in the spaces between the cristae were present...
April 20, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28428837/large-is-required-for-normal-astrocyte-migration-and-retinal-vasculature-development
#16
Min Zhou, Herui Wang, Hui Ren, Rui Jiang, Chi Zhang, Xiaohui Wu, Gezhi Xu
BACKGROUND: Persistent fetal vasculature (PFV) is a congenital developmental anomaly of the eye that accounts for about 5% of childhood blindness. The molecular mechanism of PFV remains unclear. As a glycosyltransferase of α-dystroglycan, LARGE mutations have been found in congenital muscular dystrophy patients with brain abnormalities. Spontaneous Large mutant mice displayed similar symptoms of human muscle-eye-brain disorders. However, the detailed roles of Large in ocular vasculature development still need to be uncovered...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28427867/outcomes-from-anomalous-origin-of-the-left-coronary-artery-from-the-pulmonary-artery-repair-long-term-complications-in-relation-to-residual-myocardial-abnormalities
#17
Miki Kanoh, Kei Inai, Tokuko Shinohara, Hirofumi Tomimatsu, Toshio Nakanishi
BACKGROUND: Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital coronary artery irregularity. This study aimed to clarify the long-term postoperative outcomes in ALCAPA patients, and to compare the infantile and adult types. METHODS: We retrospectively analyzed the clinical data from 33 patients with ALCAPA who underwent surgical repairs after 1980. The patients were grouped based on whether presentation occurred before (infantile type: n=14) or after (adult type: n=19) 1 year of age...
April 17, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28427691/spastic-paretic-hemifacial-contracture-as-a-presenting-feature-of-multiple-sclerosis
#18
Georgios Koutsis, Marianthi Breza, Maria-Eleftheria Evangelopoulos, Maria Anagnostouli, Elisavet Andreadou, Georgios Karagiorgis, Panagiotis Kokotis, Costas Kilidireas, Nikolaos Karandreas
BACKGROUND: Spastic paretic hemifacial contracture (SPHC) is characterized by sustained unilateral contraction of the facial muscles associated with mild ipsilateral facial paresis. Rarely described in the context of multiple sclerosis (MS), it has never been reported as presenting symptom of MS. CASE REPORTS: Two patients developed SPHC within the context of a clinically isolated syndrome suggestive of MS. EMG revealed continuous resting activity of irregularly firing motor unit potentials, associated with impaired recruitment upon voluntary contraction...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28426715/acute-hypoxia-influences-collagen-and-matrix-metalloproteinase-expression-by-human-keratoconus-cells-in-vitro
#19
Tina B McKay, Jesper Hjortdal, Shrestha Priyadarsini, Dimitrios Karamichos
Keratoconus (KC) is a progressive corneal ectasia linked to thinning of the central cornea. Hard contact lenses, rigid gas permeable lenses, and scleral lenses are the primary treatment modalities for early to mid- stages of KC to correct refractive error and astigmatism that develops as a result of an irregular corneal structure. These treatments are associated with significant drawbacks, including reduced availability of the tear film and oxygen to the corneal epithelium and stroma. However, it remains unknown whether hypoxia affects corneal integrity in the KC pathobiology...
2017: PloS One
https://www.readbyqxmd.com/read/28426459/the-association-between-cmv-viremia-or-endoscopic-features-and-histopathological-characteristics-of-cmv-colitis-in-patients-with-underlying-ulcerative-colitis
#20
Hong Yang, Weixun Zhou, Hong Lv, Dongsheng Wu, Yunlu Feng, Huijun Shu, Meng Jin, Lingling Hu, Qiang Wang, Dong Wu, Jie Chen, Jiaming Qian
BACKGROUND: Cytomegalovirus (CMV) infection has been shown to be related to severe or steroid-refractory ulcerative colitis (UC) flare-ups. The aim of this study was to evaluate the endoscopic and pathological characteristics of CMV colitis in patients with UC and to assess the predictive value of the endoscopic and pathological features of CMV colitis. METHODS: A total of 50 consecutive UC patients with CMV infection who were admitted to Peking Union Medical College Hospital from 2010 to 2015 were enrolled in this study...
May 2017: Inflammatory Bowel Diseases
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