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https://www.readbyqxmd.com/read/29353282/differential-changes-in-myocardial-performance-index-and-its-time-intervals-in-donors-and-recipients-of-twin-to-twin-transfusion-syndrome-before-and-after-laser-therapy
#1
Javier U Ortiz, Ximena Torres, Elisenda Eixarch, Mar Bennasar, Monica Cruz-Lemini, Olga Gómez, Silvia M Lobmaier, Josep M Martínez, Eduard Gratacós, Fatima Crispi
OBJECTIVE: To evaluate left myocardial performance index (MPI) and time intervals in fetuses with twin-to-twin transfusion syndrome (TTTS) before and after laser surgery. METHODS: Fifty-one fetal pairs with TTTS and 47 uncomplicated monochorionic twin pairs were included. Left ventricular isovolumetric contraction time (ICT), ejection time (ET), and isovolumetric relaxation time (IRT) were measured using conventional Doppler. RESULTS: Recipients showed prolonged ICT (46 ± 12 vs...
January 19, 2018: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/29353265/growth-sexual-and-bone-development-in-a-boy-with-bilateral-anorchia-under-testosterone-treatment-guided-by-the-development-of-his-monozygotic-twin
#2
Sara Vandewalle, Eva Van Caenegem, Margarita Craen, Youri Taes, Jean-Marc Kaufman, Guy T'Sjoen
BACKGROUND: Sex steroids are essential for sexual maturation, linear growth and bone development. However, there is no consensus on the optimal timing, dosage and dosage interval of testosterone therapy to induce pubertal development and achieve a normal adult height and bone mass in children with hypogonadism. CASE PRESENTATION: A monozygotic monochorial male twin pair, of which one boy was diagnosed with anorchia at birth due to testicular regression syndrome was followed from the age of 3 until the age of 18 years...
January 20, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29353258/aplasia-cutis-congenita-and-vanishing-twin-caused-by-iatrogenic-fetal-reduction
#3
Andrea Bassi, Caterina Coviello, Maurizio de Martino, Mario Cutrone, Carlo Dani
No abstract text is available yet for this article.
January 20, 2018: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/29352943/how-does-temperature-govern-mechanisms-of-starch-changes-during-extrusion
#4
Nicolas Logié, Guy Della Valle, Agnès Rolland-Sabaté, Nicolas Descamps, Jérémie Soulestin
Potato and pea starches were processed on a twin-screw extruder under various moisture and thermomechanical conditions, chosen to keep material temperature Te close to starch melting temperature, Tm, whilst avoiding die expansion. Extruded rods were analysed by asymmetrical flow field flow fractionation coupled with light scattering, X-ray diffraction, DSC, and light microscopy with image analysis. Molar mass of extruded materials decreased more for potato than for pea starch, when specific mechanical energy SME increased, likely because of larger amylopectin sensitivity to shear...
March 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29351779/the-effect-of-twin-to-twin-delivery-time-intervals-on-neonatal-outcome-for-second-twins
#5
L Lindroos, A Elfvin, L Ladfors, U-B Wennerholm
BACKGROUND: The objective was to examine the effect of twin-to-twin delivery intervals on neonatal outcome for second twins. METHODS: This was a retrospective, hospital-based study, performed at a university teaching hospital in Western Sweden. Twin deliveries between 2008 and 2014 at ≥32 + 0 weeks of gestation, where the first twin was delivered vaginally, were included. Primary outcome was a composite outcome of metabolic acidosis, Apgar < 4 at 5 min or peri/neonatal mortality in the second twin...
January 19, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29351172/a-systematic-review-and-meta-analysis-of-genetic-risk-factors-for-neuropathic-pain
#6
Abirami Veluchamy, Harry L Hébert, Weihua Meng, Colin N A Palmer, Blair H Smith
Neuropathic pain (NP) is an increasingly common chronic pain state and a major health burden, affecting approximately 7-10% of the general population. Emerging evidence suggests that genetic factors could partially explain individual susceptibility to NP and the estimated heritability in twins is 37%. The aim of this study was to systematically review and summarize the studies in humans that have investigated the influence of genetic factors associated with NP. We conducted a comprehensive literature search and performed meta-analyses of all the potential genetic variants associated with NP...
January 18, 2018: Pain
https://www.readbyqxmd.com/read/29350805/is-this-primip-a-nullip-the-daily-abuse-of-language-in-obstetrics
#7
Geoffrey Hughes
A decade ago Opara and Zaidi1 detailed the poor understanding of the word parity in this journal, detailing different definitions, but preferring "the number of pregnancies at or above 24 weeks gestation, regardless of outcome". The reader is therefore left to wonder if an undelivered woman at 30 weeks in her first ever pregnancy (therefore having attained viability) has a parity of zero or one. They also describe the confusion regarding surrounding a twin birth; 79% of the surveyed obstetricians and midwives incorrectly assigned that single parous event to a parity of two...
January 19, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29350630/gaas-quantum-dots-in-a-gap-nanowire-photodetector
#8
Paul Kuyanov, Simon McNamee, Ray R LaPierre
We report the structural, optical and electrical properties of GaAs quantum dots (QDs) embedded along GaP nanowires. The GaP nanowires contained p-i-n junctions with 15 GaAs QDs within the intrinsic region. The nanowires were grown by molecular beam epitaxy using the self-assisted vapor-liquid-solid process. The crystal structure of the NW alternated between twinned ZB and WZ as the composition along the NW alternated between the GaP barriers and the GaAs QDs, respectively, leading to a polytypic structure with a periodic modulation of the NW sidewall facets...
January 19, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29350440/abrupt-burial-imparts-persistent-changes-to-the-bacterial-diversity-of-turbidite-associated-sediment-profiles
#9
B K Harrison, A Myrbo, B E Flood, J V Bailey
The emplacement of subaqueous gravity-driven sediment flows imposes a significant physical and geochemical impact on underlying sediment and microbial communities. Although previous studies have established lasting mineralogical and biological signatures of turbidite deposition, the response of bacteria and archaea within and beneath debris flows remains poorly constrained. Both bacterial cells associated with the underlying sediment and those attached to allochthonous material must respond to substantially altered environmental conditions and selective pressures...
January 19, 2018: Geobiology
https://www.readbyqxmd.com/read/29350079/differences-in-home-blood-pressure-and-pulse-rates-between-singleton-and-twin-pregnancies
#10
Yukiko Mikami, Yasushi Takai, Sumiko Era, Yoshihisa Ono, Masahiro Saitoh, Kazunori Baba, Hiromichi Suzuki, Hiroyuki Seki
Objectives To evaluate home blood pressure (HBP) measurements during pregnancy and postpartum and investigate differences between singleton and twin pregnancies. Methods This prospective study involved normotensive, pregnant women who were planning to give birth at Saitama Medical Centre, Saitama, Japan between September 2013 and March 2017. HBP and pulse rate were measured twice daily and clinical blood pressure values were determined from patient records. Results HBP values were available from 101 participants; 69 women with singleton and 32 women with twin pregnancies...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29349843/pregnancy-after-bariatric-surgery-maternal-and-fetal-outcomes-of-39-pregnancies-and-a-literature-review
#11
Maria Manuel Costa, Sandra Belo, Pedro Souteiro, João S Neves, Daniela Magalhães, Rita B Silva, Sofia C Oliveira, Paula Freitas, Ana Varela, Joana Queirós, Davide Carvalho
AIM: We aimed to evaluate the impact of bariatric surgery (BS) on maternal and fetal outcomes. METHODS: A retrospective, descriptive, observational study of 39 pregnant women who underwent BS in our institution between 2010 and 2014 was carried out. A sample of women who became pregnant after BS was evaluated, based on data concerning pregnancy, childbirth, and newborns. RESULTS: Of the 1182 patients who underwent BS at our institution during the study period, 1016 (85...
January 18, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29349587/the-danish-medical-birth-register
#12
REVIEW
Mette Bliddal, Anne Broe, Anton Pottegård, Jørn Olsen, Jens Langhoff-Roos
The Danish Medical Birth Register was established in 1973. It is a key component of the Danish health information system. The register enables monitoring of the health of pregnant women and their offspring, it provides data for quality assessment of the perinatal care in Denmark, and it is used extensively for research. The register underwent major changes in construction and content in 1997, and new variables have been added during the last 20 years. The aim was to provide an updated description of the register focusing on structure, content, and coverage since 1997...
January 19, 2018: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29348671/superconducting-gap-anisotropy-sensitive-to-nematic-domains-in-fese
#13
Takahiro Hashimoto, Yuichi Ota, Haruyoshi Q Yamamoto, Yuya Suzuki, Takahiro Shimojima, Shuntaro Watanabe, Chuangtian Chen, Shigeru Kasahara, Yuji Matsuda, Takasada Shibauchi, Kozo Okazaki, Shik Shin
The structure of the superconducting gap in unconventional superconductors holds a key to understand the momentum-dependent pairing interactions. In superconducting FeSe, there have been controversial results reporting nodal and nodeless gap structures, raising a fundamental issue of pairing mechanisms of iron-based superconductivity. Here, by utilizing polarization-dependent laser-excited angle-resolved photoemission spectroscopy, we report a detailed momentum dependence of the gap in single- and multi-domain regions of orthorhombic FeSe crystals...
January 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29348069/thermomechanical-processing-of-in-containing-%C3%AE-type-ti-nb-alloys
#14
Stefan Pilz, David Geissler, Mariana Calin, Jürgen Eckert, Martina Zimmermann, Jens Freudenberger, Annett Gebert
In this study, the effect of thermomechanical processing on microstructure evolution of the indium-containing β-type Ti alloys (Ti-40Nb)-3.5In and (Ti-36Nb)-3.5In was examined. Both alloys show an increased β-phase stability compared to binary alloys due to In additions. This leads to a reduced α''-phase fraction in the solution treated and recrystallized state in the case of (Ti-36Nb)-3.5In and to the suppression of stress-induced α'' formation and deformation twinning for (Ti-40Nb)-3.5In. The mechanical properties of the alloys were subsequently studied by quasistatic tensile tests in the recrystallized state, revealing reduced Young's modulus values of 58GPa ((Ti-40Nb)-3...
December 29, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29347926/handheld-ultrasound-to-avert-maternal-and-neonatal-deaths-in-2-regions-of-the-philippines-an-ibuntis%C3%A2-intervention-study
#15
Godofreda V Dalmacion, Ramon T Reyles, Antonia E Habana, Lalaine Mae V Cruz, Maricelle C Chua, Analyn T Ngo, Milagros J Tia-Jocson, Emmanuel S Baja
BACKGROUND: The major causes of maternal and neonatal mortality in the Philippines are hemorrhages and obstructed labor due to placental implantation abnormalities (PIAs), twin pregnancies and fetal malpresentations. All of which are all easily detected by ultrasound. However, women in rural areas and low-income groups do not have access to ultrasound during their prenatal care. We aimed to provide additional evidence on the benefits of handheld ultrasound (HU) for screening pregnancy related abnormalities in order to avert maternal and neonatal deaths...
January 18, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29347297/intermittent-direction-reversals-of-moving-spatially-localized-turbulence-observed-in-two-dimensional-kolmogorov-flow
#16
Yoshiki Hiruta, Sadayoshi Toh
We have found that in two-dimensional Kolmogorov flow a spatially localized turbulent state (SLT) exists stably and travels with a constant speed on average switching the moving direction randomly and intermittently for moderate values of the control parameters: Reynolds number and the flow rate. We define the coarse-grained position and velocity of an SLT and separate the motion of the SLT from its internal turbulent dynamics by introducing a co-moving frame. The switching process of an SLT represented by the coarse-grained velocity seems to be a random telegraph signal...
December 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346723/shear-induced-brittle-failure-along-grain-boundaries-in-boron-carbide
#17
Xiaokun Yang, Shawn P Coleman, Jerry Lasalvia, William A Goddard, Qi An
The roles of grain boundaries (GB) in mechanical properties have been examined extensively for metals and alloys; however, for covalent solids their roles in deformation response to applied stress are much less established. We consider here the unusual ceramic, boron carbide (B4C), which is very hard and lightweight but exhibits brittle impact behavior. We used quantum mechanics (QM) simulations to determine the mechanical response in the atomistic structures at GBs under pure shear and also with biaxial shear deformation that mimics indentation stress conditions...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29346634/are-people-getting-quality-thalassemia-care-in-twin-cities-of-pakistan-a-comparison-with-international-standards
#18
Tehreem Tanveer, Haleema Masud, Zahid Ahmed Butt
Objectives: This study was conducted to determine if thalassemia patients were getting quality care in Rawalpindi and Islamabad, Pakistan, as per international standards and to identify determinants for better quality of thalassemia care. Design: A cross sectional study was conducted using interview based structured questionnaire, which was developed using standards of thalassemia care used by International Thalassemia Foundation. Setting: Five healthcare facilities catering to the needs of thalassemia patients in Rawalpindi and Islamabad, Pakistan...
January 16, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29345508/response-by-twin-italian-hub-hospitals-in-a-double-seismic-event-a-retrospective-observational-investigation
#19
Alberto Barbieri, Gabriele Melegari, Valentina Lob, Lorenzo Mazzali, Luca D'Amelio, Andrea Giovannoni, Enrico Giuliani
INTRODUCTION: The objectives of this study were to compare prevalence rates of different pathologies, ambulance system and emergency department management times, and patient survival and hazard ratios for codes 2 and 3 in two hub hospitals in Modena in the 36-month period across the stages of two major earthquakes in short sequence in Northern Italy in 2012. METHODS: Clinical records pertaining to the emergency care of patients were analyzed and only those assigned status codes 2 and 3 by ambulance professionals were included (if the assessment was confirmed by emergency department triage)...
January 18, 2018: Prehospital Emergency Care
https://www.readbyqxmd.com/read/29343229/the-colombo-twin-and-singleton-follow-up-study-a-population-based-twin-study-of-psychiatric-disorders-and-metabolic-syndrome-in-sri-lanka
#20
Kaushalya Jayaweera, Lisa Aschan, Gayani Pannala, Anushka Adikari, Nicholas Glozier, Khalida Ismail, Carmine M Pariante, Fruhling Rijsdijk, Sisira Siribaddana, Helena M S Zavos, Patricia A Zunszain, Athula Sumathipala, Matthew Hotopf
BACKGROUND: The disease burden related to mental disorders and metabolic syndrome is growing in low-and middle-income countries (LMIC). The Colombo Twin and Singleton Study (COTASS) is a population-based sample of twins and singletons in Colombo, Sri Lanka. Here we present prevalence estimates for metabolic syndrome (metS) and mental disorders from a follow-up (COTASS-2) of the original study (COTASS-1), which was a mental health survey. METHODS: In COTASS-2, participants completed structured interviews, anthropometric measures and provided fasting blood and urine samples...
January 17, 2018: BMC Public Health
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