bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transient iatrogenic heart block following foetal intracardiac transfusion for severe twin anaemia-polycythaemia sequence
Authors: Dassios Theodore , Ali Kamal , Hickey Ann , Greenough Anne 
Published: July 2016

Abstract

Background:
Intrauterine blood transfusion is an important treatment of foetal anaemia. Although the standard access to the foetal vasculature for transfusion is the umbilical vein, the intracardiac route is used when foetal or placental positions make other accesses technically challenging. Intrauterine, intracardiac blood transfusion is associated with complications including haemopericardium, damage to cardiac tissues and foetal bradycardia.

Highlights of the present report:
We report a case of monochorionic twins with twin anaemia-polycythaemia sequence (TAPS). Intracardiac, intrauterine blood transfusion of the donor twin was complicated by haemopericardium and sustained bradycardia which necessitated delivery by emergency caesarean section. Postnatally, the bradycardia was sustained and was diagnosed electrocardiographically as heart block, which spontaneously reversed on the second day after birth. The management of heart block in the neonatal period is discussed.

Conclusion:
Foetal intracardiac intrauterine blood transfusion can be associated with transient congenital heart block (CHB).
Hypomagnesaemia: a modifiable risk factor of diabetic nephropathy
Authors: Bherwani Sonny , Jibhkate Srushtee Bipin , Saumya A.S. , Patel Sitendu Kumar , Singh Ritu , Ghotekar L.H. 
Published: July 2016

Abstract

Background:
Diabetes mellitus (DM) is a heterogeneous disease characterised by an absolute or relative deficiency of insulin and insulin resistance. Diabetes is occurring at younger age in India. It is estimated that 20% of the type 2 DM patients reach end-stage renal disease (ESRD) during their lifetime. Recently, it has been proposed that hypomagnesaemia is a novel factor implicated in the pathogenesis of diabetic complications. Considering this, a study was designed to estimate the prevalence and association of hypomagnesaemia with diabetic nephropathy in North Indian population.

Materials and methods:
The investigated clinical group composed of 100 type 2 diabetics, grouped into two, on the basis of presence or absence of diabetic nephropathy with n=50 each. Biochemical investigations including fasting blood sugar (BS-F), blood urea, creatinine, magnesium (Mg), urinary albumin-creatinine ratio (U-A/C ratio) were carried out. Descriptive statistics was applied to described frequency and means. χ2-Test and Student’s t-tests were used to analyze associations between categorical and continuous variables, respectively. Pearson’s correlation was done to find the association of nephropathy with hypomagnesaemia.

Results:
We observed that 37% of diabetic patients had hypomagnesaemia (mean=1.40±0.16 mg/dL). There was also a significantly higher prevalence of hypomagnesaemia (52%) in DM nephropathy patients (mean=1.62±0.31 mg/dL) compared to without nephropathy patients (22%, mean=1.86±0.28 mg/dL). Serum magnesium levels were significantly inversely correlated with serum creatinine (r=–0.222, p=0.026) and U-A/C ratio (r=–0.352, p=0.000), and positively correlated with glomerular filtration rate (GFR) (r=0.304, p=0.002).

Conclusion:
We concluded that hypomagnesaemia was significantly associated with higher prevalence of diabetic nephropathy and can be used as a marker for the risk of development of diabetic nephropathy.
The Nasal Geometry of the Reindeer Gives Energy-Efficient Respiration
Authors: Magnanelli Elisa , Wilhelmsen Øivind , Acquarone Mario , Folkow Lars P. , Kjelstrup Signe 
Published: July 2016

AbstractReindeer in the arctic region live under very harsh conditions and may face temperatures below 233 K. Therefore, efficient conservation of body heat and water is important for their survival. Alongside their insulating fur, the reindeer nasal mechanism for heat and mass exchange during respiration plays a fundamental role. We present a dynamic model to describe the heat and mass transport that takes place inside the reindeer nose, where we account for the complicated geometrical structure of the subsystems that are part of the nose. The model correctly captures the trend in experimental data for the temperature, heat and water recovery in the reindeer nose during respiration. As a reference case, we model a nose with a simple cylindrical-like geometry, where the total volume and contact area are the same as those determined in the reindeer nose. A comparison of the reindeer nose with the reference case shows that the nose geometry has a large influence on the velocity, temperature and water content of the air inside the nose. For all investigated cases, we find that the total entropy production during a breathing cycle is lower for the reindeer nose than for the reference case. The same trend is observed for the total energy consumption. The reduction in the total entropy production caused by the complicated geometry is higher (up to -20 %) at more extreme ambient conditions, when energy efficiency is presumably more important for the maintenance of energy balance in the animal. In the literature, a hypothesis has been proposed, which states that the most energy-efficient design of a system is characterized by equipartition of the entropy production. In agreement with this hypothesis, we find that the local entropy production during a breathing cycle is significantly more uniform for the reindeer nose than for the reference case. This suggests that natural selection has favored designs that give uniform entropy production when energy efficiency is an issue. Animals living in the harsh arctic climate, such as the reindeer, can therefore serve as inspiration for a novel industrial design with increased efficiency.
Fetal loss following invasive prenatal testing: a comparison of transabdominal chorionic villus sampling, transcervical chorionic villus sampling and amniocentesis
Authors: Niederstrasser Svenja Laura , Hammer Kerstin , Möllers Mareike , Falkenberg Maria Karina , Schmidt Rene , Steinhard Johannes , Klockenbusch Walter , Schmitz Ralf 
Published: July 2016

AbstractObjective:The aim of this study was to compare transabdominal chorionic villus sampling, transcervical chorionic villus sampling and amniocentesis with respect to their total fetal loss rates.Methods:We retrospectively evaluated procedures of invasive prenatal testing performed during a 14-year period (2001–2014) including 936 amniocentesis procedures and 1051 chorionic villus samplings, of which 405 cases were executed transabdominally and 646 transcervically. Only singleton pregnancies before 24 weeks and 0 days of gestation where the pregnancy outcome was known were included. Fetal loss was defined as an abortion occurring either before 24 weeks and 0 days of gestation or <2 weeks after the procedure.Results:The total fetal loss rates were determined to be 1.73% for transabdominal chorionic villus sampling, 2.01% for transcervical chorionic villus sampling and 1.18% for amniocentesis. No statistically noticeable differences between the total fetal loss rates of all three procedures were found (P=0.399).Conclusion:Our study has shown that chorionic villus sampling (either transabdominal or transcervical) and amniocentesis are equal methods for invasive prenatal testing with respect to their abortion risk.
New modification of Maheshwari’s method with optimal eighth order convergence for solving nonlinear equations
Authors: Sharifi Somayeh , Ferrara Massimiliano , Salimi Mehdi , Siegmund Stefan 
Published: July 2016

Abstract
In this paper, we present a family of three-point with eight-order convergence methods for finding the simple roots of nonlinear equations by suitable approximations and weight function based on Maheshwari’s method. Per iteration this method requires three evaluations of the function and one evaluation of its first derivative. These class of methods have the efficiency index equal to

8

1
4

≈
1.682

${8^{{\textstyle{1 \over 4}}}} \approx 1.682$

. We describe the analysis of the proposed methods along with numerical experiments including comparison with the existing methods. Moreover, the attraction basins of the proposed methods are shown with some comparisons to the other existing methods.
Kinetics of oxygen adsorption on ZnS nanoparticles synthesized by precipitation process
Authors: Ahmadi Reza , Sadrnezhad Seyyed Khatiboleslam , Zangeneh Rashin Namivandi , Oghabian Mohammad Ali 
Published: July 2016

AbstractZnS nanoparticles were synthesized through a one-step precipitation process. Effect of time and temperature on the formation reaction was investigated. The synthesized samples were characterized by X-ray diffraction (XRD), ultraviolet (UV) visible absorption and photoluminescence (PL) spectrophotometry. Based on XRD and UV-Vis data, the particles produced at 70 °C had a mean particle size of about 5 nm. Increasing time and temperature of the synthesis reaction resulted in photoluminescence intensification. PL spectroscopy helped understanding the adsorption kinetics of oxygen on ZnS nanoparticles during the precipitation synthesis process. Fabrication of ZnS structures with appropriate oxygen adsorption capacity was suggested as a means of PL emission intensity control.
Ultrasound mediated synthesis of CuS nanocrystallites
Authors: Panda B.B. , Sharma B. , Rana R.K. 
Published: July 2016

AbstractWe present a unique ultrasonication based method for the preparation of copper sulphide nanoparticles in ambient air using a single precursor complex, which acts as a source of both metal and sulphur. The nanoparticles of 3.31 nm have been prepared successfully by the method and characterized using powder X-ray diffractogram (PXRD), dynamic light scattering (DLS) analysis UV-Vis spectroscopy and fluorescence spectroscopy. The results proved that copper sulphide nanoparticles of hexagonal structure (covellite phase) can be prepared by sonochemical method within a very short reaction time of ~5 min. The band gap of the nanomaterial has also been calculated from absorption spectrum and was found to be 2.36 eV.
Modification in surface properties of poly-allyl-diglycol-carbonate (CR-39) implanted by Au+ions at different fluences
Authors: Sagheer Riffat , Rafique M. Shahid , Saleemi Farhat , Arif Shafaq , Naab Fabian , Toader Ovidiu , Mahmood Arshad , Rashid Rashad , Hussain Irshad 
Published: July 2016

AbstractIon implantation has a potential to modify the surface properties and to produce thin conductive layers in insulating polymers. For this purpose, poly-allyl-diglycol-carbonate (CR-39) was implanted by 400 keV Au+ions with ion fluences ranging from 5 × 1013ions/cm2to 5 × 1015ions/cm2. The chemical, morphological and optical properties of implanted CR-39 were analyzed using Raman, Fourier transform infrared (FT-IR) spectroscopy, atomic force microscopy (AFM) and UV-Vis spectroscopy. The electrical conductivity of implanted samples was determined through four-point probe technique. Raman spectroscopy revealed the formation of carbonaceous structures in the implanted layer of CR-39. From FT-IR spectroscopy analysis, changes in functional groups of CR-39 after ion implantation were observed. AFM studies revealed that morphology and surface roughness of implanted samples depend on the fluence of Au ions. The optical band gap of implanted samples decreased from 3.15 eV (for pristine) to 1.05 eV (for sample implanted at 5 × 1015ions/cm2). The electrical conductivity was observed to increase with the ion fluence. It is suggested that due to an increase in ion fluence, the carbonaceous structures formed in the implanted region are responsible for the increase in electrical conductivity.
Crystal structure of aqua-(5-nitrosalicylato-κ2
O,O′)-(1,10-phenanthroline-κ2
N,N′)copper(II), C19H13CuN3O6
Authors: Tang Zhiwei , Xie Guixiang , Dong Yan , Wen Decai 
Published: July 2016

Abstract
C19H13CuN3O6, monoclinic, P21/c, a = 7.208(3) Å, b = 21.720(8) Å, c = 11.098(5) Å, β = 99.085(17)°, V = 1715.8(12) Å3, Z = 4, R
gt(F) = 0.0428, wR
ref(F
2) = 0.1044, T = 293 K.
Review of the Performance of High-Strength Rubberized Concrete and Its Potential Structural Applications
Authors: Li D. , Mills J. E. , Benn T. , Ma X. , Gravina R. , Zhuge Y. 
Published: July 2016

Abstract
Partially replacing concrete aggregates with recycled materials could help to combat the decreasing availability of some natural resources (like natural sand) and at the same time help to utilize growing quantities of waste material like used tires. This idea has been put into practice to develop a more sustainable concrete material called rubberized concrete or crumbed rubber concrete (CRC). CRC has improved structural ductility and impact resistance but can have lower strength than traditional concrete. Most research to date has focused on low strength CRC and its non-structural applications. However, recent research has shown that high-strength CRC (HSCRC) can be achieved through rubber pre-treatment, using various additives, optimal rubber content, or good grading of combined rubber sizes. This paper reviews the research undertaken to date in HSCRC (defined as compressive strength over 30 MPa), focusing primarily on the material properties but also considering the potential structural applications of HSCRC. Finally, the future research necessary to prove the viability of HSCRC for structural reinforced concrete applications is discussed.
A Test Apparatus for Alternating Flow in Geotechnical Engineering
Authors: Kayser Jan , Karl Fabian , Schürenkamp David , Schwab Nora , Oumeraci Hocine 
Published: July 2016

Abstract
Alternating flows in the ground have a detrimental effect on the internal stability of the ground at the bottom of bodies of water, at offshore structures, coastal protection structures, and revetments. A test apparatus for alternating flow was constructed for the purpose of investigating various problems relating to alternating flow in the ground. It was used to conduct investigations into the stability of granular filters for offshore wind turbines subjected to high levels of alternating hydraulic loads. The design criteria for granular filters subjected to oscillating loads must be considerably more stringent than those for granular filters subjected to unidirectional flow. It was also possible to demonstrate that the hydraulic loads due to waves have a significant effect on the filter stability in the area relevant for offshore structures.
Enhanced Hardenability and Tempering Resistance of AISI 4130 Steel by Ni Addition
Authors: Martínez-Cazares G. M. , Almanza A. , Almanza E. , Lozano D. E. 
Published: July 2016

Abstract
The AISI 4130 steel grade is commonly used in piping systems, where optimum chemical composition and heat treatment can exhibit high yield strength, good ductility, and moderate weldability depending on composition. However, this steel grade is characterized by its low hardenability, which limits a good transformation during quenching in heavy sections. In order to improve hardenability, Ni was added and C was reduced for the same level of CE (0.7). Two chemical compositions were used; samples were quenched at critical cooling rate and tempered. With the addition up to 0.5 wt. % Ni, the alloy exhibited great improvement on strength and toughness; additionally, the alloy allowed an increase of 40°C on the tempering temperature for the same strength level. In the case of post-welding, heat treatment is required so that the alloy is less susceptible to suffering a drop in mechanical properties. Results of chemical composition, strength, and toughness are discussed.
Mejores prácticas para el lavado y manipulación de la bolsa de alimentación enteral Kangaroo
Authors: Cubero Alpízar Consuelo , Flores Martínez Luz Marina , Rodríguez Rodríguez Jenny 
Published: July 2016

Introducción: La nutrición enteral es una valiosa herramienta en la terapia de los pacientes hospitalizados, especialmente en las unidades de cuidado intensivo y en pacientes que, por sus patologías, pierden su habilidad de ingerir alimentos.Metodología: se aplicó la metodología que señala la práctica clínica basada en evidencia (PCBE) que trata de localizar hallazgos que respondan a la pregunta clínica planteada mediante el estudio y análisis de investigaciones primarias y originales de alta calidad científica.Resultados: Ningún estudio respondió directamente a la pregunta, sin embargo, varias investigaciones aluden que el lavado de manos y el uso de guantes limpios funcionan como estrategia para la manipulación y lavado de este dispositivo. La calidad de los estudios encontrados es baja ya que provienen de investigaciones basadas en la opinión de expertos y revisión de literatura de poca calidad.Conclusiones. No se encuentra evidencia significativa que respalde el uso de técnica aséptica médica y quirúrgica para el manejo y lavado de la bolsa Kangaroo de alimentación enteral.
Free vibration of functionally graded sandwich plates with stiffeners based on the third-order shear deformation theory
Authors: Dat Pham Tien , Thom Do Van , Luat Doan Trac 
Published: July 2016

In this paper, the free vibration of functionally sandwich grades plates with stiffeners is investigated by using the finite element method. The material properties are assumed to be graded in the thickness direction by a power-law distribution. Based on the third-order shear deformation theory, the governing equations of motion are derived from the Hamilton's principle. A parametric study is carried out to highlight the effect of material distribution, stiffener parameters on the free vibration characteristics of the plates.
HISTÓRIA ORAL ENTRE REFLEXÕES E MEMÓRIAS: Revisitando o percurso de Antônio Torres Montenegro e suas trilhas metodológicas do fazer historiográfico
Authors: Cavalcanti Erinaldo Vicente , Soares Fagno da Silva 
Published: July 2016

Entrevista realizada em 07 de abril de 2016, com o historiador Antônio Torres Montenegro, professor Titular de História do Brasil da Universidade Federal de Pernambuco (UFPE), referência nos estudos em história oral no Brasil.

Antônio Torres Montenegro pesquisador pernambucano de reconhecida atuação no uso da metodologia da história oral. Seus estudos acerca das relações entre a história e memória, teoria da história e lutas políticas no âmbito da História do Brasil Contemporâneo têm ressonâncias nacionais e internacionais. Graduado em Filosofia pela Universidade Católica de Pernambuco (UNICAP, 1974), mestre e doutor em História pela Universidade Estadual de Campinas (Unicamp, 1983/1991), realizou seu estágio pós-doutoral na State University of New York - Stony Brook (2000) e na Universidade Federal Fluminense (UFF, 2016). Ao longo de sua carreira acadêmica, no campo da história, publicou inúmeros artigos em periódicos nacionais e internacionais, organizou e/ou publicou vários livros e capítulos de livros. Participou de aproximadamente 100 bancas de defesas de dissertações e teses e de inúmeros eventos acadêmicos regionais, nacionais e internacionais. Atua do Conselho Editorial de importantes periódicos nacionais na área de história, a exemplo Territórios e Fronteiras do Programa de Pós-Graduação da Universidade Federal de Mato Grosso (UFMT) da Revista História Oral da Associação Brasileira de História Oral (ABHO) da Revista Tempo do Departamento de História da Universidade Federal Fluminense (UFF) entre outras.
STRATEGI MATA PENCAHARIAN MASYARAKAT BERKELANJUTAN PADA EKOSISTEM MANGROVE DI WONOREJO, KOTA SURABAYA
Authors: Zen Luthfia Zahra , Darusman Dudung , Santoso Nyoto 
Published: July 2016

Keberlanjutan pemanfaatan sumber daya alam untuk kesejahteraan masyarakat adalah hal yang penting bagi perlindungan ekosistem mangrove. Bahkan sumber daya alam akan dipertahankan, jika memberikan manfaat dan menjadi sumber utama bagi pendapatan masyarakat. Penelitian ini bertujuan untuk menentukan model mata pencaharian masyarakat yang berkelanjutan pada ekosistem mangrove di Wonorejo. Dengan pendekatan MDS dan RAPFISH, hasilnya menunjukkan bahwa penghidupan masyarakat bermata pencaharian sebagai petani mangrove, petani tambak dan nelayan harian cukup berkelanjutan. Keberlanjutan penghidupan dapat dilakukan oleh dua strategi terpilih melalui analisis SWOT yang terdiri dari menghentikan alih fungsi lahan yang bersifat komersial di tanah konversi dan pemanfaatan daerah-daerah potensial yang dikombinasikan dengan keterampilan masyarakat. Model dapat dikembangkan untuk lokasi ekowisata dengan konsep memanfaatkan potensi SDA dan potensi kelompok masyarakat di Wonorejo.
Successful Treatment of Mycobacterium gordonae Sacroiliitis Using a Novel Minimally Invasive Sacroiliac Joint Arthrodesis
Authors: Wanderman Nathan , Thurn Joseph , Wyffels Mitchell , Sembrano Jonathan N. 
Published: July 2016

Case:A 43-year-old man with a history of well-controlled HIV (human immunodeficiency virus) infection presented with sacroiliac joint destruction from aMycobacterium gordonaeinfection. A sacroiliac joint arthrodesis was performed using a minimally invasive technique utilizing both biologic fusion (allograft bone with rhBMP-2 [recombinant human bone morphogenetic protein-2]) and fixation with titanium ingrowth rods.Conclusion:To our knowledge, this is the first reported case of infectious sacroiliitis from a nontubercular mycobacterium(M. gordonae)treated with a combination of joint debridement, biologic fusion with bone graft, and nonbiologic functional fusion using titanium ingrowth rods, all performed in a minimally invasive fashion. This strategy effectively alleviated pain and preserved function at 2 years of follow-up.
Reconstruction of Extensor Tendon Dislocation Due to Chronic Sagittal Band Rupture of the Thumb Metacarpophalangeal Joint
Authors: Hibino Naohito , Hamada Yoshitaka , Sato Ryosuke , Wada Kazuma , Kondo Kenji , Sairyo Koichi 
Published: July 2016

Case:
We report a case of recurrent dislocation of the extensor pollicis longus and extensor pollicis brevis tendons due to chronic rupture of the radial sagittal band of the metacarpophalangeal joint of the thumb.

Conclusion:
Successful restabilization of these tendons was achieved by transferring a half-slip of the abductor pollicis brevis tendon.
Enchondroma Protuberans of the Ulna in a Pediatric Patient
Authors: Lasater Peter , Steensma Matthew Richard , Patthanacharoenphon Cameron , Davis Mary M. 
Published: July 2016

Case:
We report the case of a 3-year-old boy who presented with a distal ulnar fracture through a mixed sclerotic and lytic expansile lesion. The underlying lesion, an enchondroma protuberans, can mimic either benign or malignant bone tumors. It was successfully treated with casting and intralesional treatment.

Conclusion:
Enchondroma protuberans is a rare entity that mimics enchondroma, osteochondroma, periosteal chondroma, or chondrosarcoma. Diagnosis is typically made through both radiographic and histologic means. In this case, the pathologic fracture was successfully treated with casting followed by intralesional curettage and bone-grafting. There was no evidence of recurrence at 18 months.