bluuebunny/crossref_metadata_2025_split huggingface dataset:
Association of extended duration of sciatic leg pain with worse outcome after lumbar disc herniation surgery: a register study in 6216 patients
Authors: Beck Joel , Westin Olof , Brisby Helena , Baranto Adad 
Published: February 2021

OBJECTIVE
Sciatica is the hallmark symptom of a lumbar disc herniation (LDH). Up to 90% of LDH patients recover within 12 weeks regardless of treatment. With continued deteriorating symptoms and low patient quality of life, most surgeons recommend surgical discectomy. However, there is not yet a clear consensus regarding the proper timing of surgery. The aim of this study was to evaluate how the duration of preoperative leg pain (sciatic neuralgia) is associated with patient-reported levels of postoperative leg pain reduction and other patient-reported outcome measures (PROMs) in a prospectively collected data set from a large national cohort.

METHODS
All patients aged 18–65 years undergoing a lumbar discectomy during 2013–2016 and registered in Swespine (the Swedish national spine registry) with 1 year of postoperative follow-up data were included in the study (n = 6216). The patients were stratified into 4 groups according to preoperative pain duration: < 3, 3–12, 12–24, or > 24 months. Patient results assessed with the numeric rating scale (NRS) for leg pain (rated from 0 to 10), global assessment of leg pain, EQ-5D, Oswestry Disability Index (ODI), and patient satisfaction with the final surgical outcome were analyzed and compared with preoperative values and between groups.

RESULTS
A significant improvement was seen 1 year postoperatively regardless of preoperative pain duration (change in NRS score: mean −4.83, 95% CI −4.73 to −4.93 in the entire cohort). The largest decrease in leg pain NRS score (mean −5.59, 95% CI −5.85 to −5.33) was seen in the operated group with the shortest sciatica duration (< 3 months). The patients with a leg pain duration in excess of 12 months had a significantly higher risk of having unchanged radiating leg pain 1 year postoperatively compared with those with < 12-month leg pain duration at the time of surgery (OR 2.41, 95% CI 1.81–3.21, p < 0.0001).

CONCLUSIONS
Patients with the shortest leg pain duration (< 3 months) reported superior outcomes in all measured parameters. More significantly, using a 12-month pain duration as a cutoff, patients who had a lumbar discectomy with a preoperative symptom duration < 12 months experienced a larger reduction in leg pain and were more satisfied with their surgical outcome and perception of postoperative leg pain than those with > 12 months of sciatic leg pain.
Amount of Stimulation Received at Home and Growth During Infancy Have Positive Association With Psychomotor Development of Poor Urban Bangladeshi Infants
Authors: Hakim Maliha , Tofail Famida , Momin Afzal , Sharmin Farzana , Ahmed Tofail , Hamadani Nena D 
Published: February 2021

Biological and psychosocial factors along with cumulative environmental factor have effect on the later childhood development. The detrimental effect of these factors on development varies from studies to studies in different geographical regions with variation in the causality. LBW (Low birth weight) children (birth weight<2500 g) generally have poorer levels of development compared to NBW (Normal birth weight) infants. The development of term-LBW/SGA (Small for gestanational age) or IUGR (Intrauterine growth retardation) infant is more complex and controversial. To assess the factors influencing cognitive development of Bangladeshi infants from poor socio-economic background. This study was conducted using pooled data derived from a previously done randomized control trial on 400 pregnant women. To find the biological and socio-environmental factors that associated with development, we broke down the randomization. A house-to-house survey was carried out in a defined poor urban area and all women who were 5 to 6 months pregnant were enrolled and the gestational period was ascertained by the report of LMP (Last menstrual period) given by the mothers. Data of 249 mother-infant dyads who completed the study and had all the measurements up to 10 months were used for this analysis. The detailed information regarding enrolment and findings from the main study has been published elsewhere. Distribution of each variable was checked for normality and where necessary appropriate transformations were made. Bivariate correlations between the developmental variables and socioeconomic measures were assessed. To examine the effect of biological and psychosocial factors on development of infants, series of multiple linear regression analyses were performed where each of the developmental variables was treated as a dependent variable. Family wealth and play material available for the child at home have a strong positive influence on both mental and psychomotor development whereas overcrowding exerts a negative impact on development. Similarly younger infants, being female, having larger head at birth and greater increase in head size over 10 month were found to have better mental developmental index, while taller children at birth had better psychomotor development at 10 month. Birth length and head-circumference and growth in head-circumference in the early months affect child development even after controlling for social background.
JCMCTA 2012; 23(1): 11-16
Antimicrobial Therapy in Preventing Wound Infection Following Appendectomy for Uncomplicated Appendicitis in Children : Comparison Between Single Dose and Multiple Doses
Authors: Rahman MA Mushfique , Farooq Md Abdullah Al , Bhuiyan Md Akbar Husain , Sajid Md Minhajuddin , Chowdhury Tanvir Kabir , Islam M Kabirul 
Published: February 2021

The role of antibiotics in acute appendicitis is well established. If there is no intra-peritoneal contamination the antibiotic administration should be prophylactic. The current trend is to continue post operative antibiotics for fixed periods ranging from 5 to 7 days in most of the hospitals in our country. Our aim was to assess the safety in relation to wound infection after appendectomy for uncomplicated appendicitis in children with single dose combined antimicrobial therapy and multiple doses. For this purpose a prospective comparative study was done in department of surgery, Dhaka Shishu Hsopital from January, 2004 to December, 2004. Children upto 12 yrs of age with diagnosis of uncomplicated appendicitis were included in this study and preoperative findings of perforated, gangrenous appendix, histopathological report of normal appendix were excluded. Patients received antibiotics prior to hospital admission and acute appendicitis with other systemic diseases were also excluded. Total 60 patients were selected randomly in control (30 patients) and study (30 patients) group. All patients received per operative triple untibiotic therapy (Amoxycillin, Metronidazole and Gentamicin). No further antibiotic were given in study group, post operative antibiotics were continued for 7 days in control group. Wound infection was noted in 1 patient (3.33%) of each group and cost of antibiotics was significantly higher in control group (P value > 0.05). It has proved that uncomplicated appendicitis in children can be treated safely with single dose triple antibiotic therapy and use of extended period of post operative antibiotics gives no added benefit.
JCMCTA 2012; 23(1): 26-30
Fetomaternal Outcome in Pregnancy With Cardiac Disease
Authors: Sharmin Shahanaj , Chowdhury Shahanara , Alam Didarul , Ahmed Mohiuddin , Rashid Fahamida , Roy Tarun Kumar 
Published: February 2021

Aim of our study was to see the maternal and fetal outcomes in women presenting with heart disease during pregnancy and labout. This cross sectional study was carried out in 48 pregnant women with cardiac disease from July 2005 to Dec 2006, in the department of Gynae and Obst at Chittagong Medical College Hospital Chittagong. The Mewan age was 25.40 ±4.46 years. 31(64.6%) patients were from middle class. 27 (56.3%) patients belonged to mulliparous group. 33(68.8%) patients received regular antenatal care, of the 43 (89.7%) patients had rheumatic heart disease and 5(10.5%) had congenital heart disease. Among the rheumatic heart disease, 50% had mitral stenosis. 35(72.9%) patients had in grade-1, 12(25%) had in grade-II, and 1(2.1%) had in grade-III. (64.5%) had normal vaginal delivery, 7(14.5%) had LSCS. 4(8.3%) had heard failure and 1 patient (2.1%) expired due to heart failure, 40(83.3%) were delivered at term, 7(14.6%) had preterm labour and 1(2.1%) had still birth. Regarding birth weight, 17(35.4%) had LBW (Low birth weight), 31(64.6%) had normal birth weight. Rheumatic heart disease is the commonest cardiac lesion among Pregnant women. Fetomaternal morbidity and mortality are strongly correlated with maternal cardiac functional classification. The management of these cases should be multidisciplinary to optimize care of these patients.
JCMCTA 2012; 23(1): 31-35
Severe Microcytic Anaemia Due to Chohn’s Disease : An Uncommon Presentation
Authors: Islam Mohammad Syedul , Irshadullah Naseeb Mohammad , Md Jabed Syed , Uddin Rabiul Alam Md Erfan 
Published: February 2021

Crohn’s disease is an uncommon disease. Most common presentation is abdominal pain, diarrhea and weight loss. It may present as subacute or even acute intestinal obstruction. Crohn’s disease is very rare in Bangladesh. Here we report a case of Crohn’s disease where the initial presentation was severe microcytic hypochromic anaemia, who received repeated blood transfusion for one year. Initially cause was not detected. Later on he presented with subacute intestinal obstruction. After all routine diagnostic work up no definitive diagnosis could be found. So laparotomy was done in Bangabandhu Sheikh Mujib Medical University (BSMMU). Histopathology report was suggestive of Crohn’s disease and he was on mesalazine with significant clinical improvement.
JCMCTA 2012; 23(1): 49-50
Lupus With Pregnancy : Beyond the Basics
Authors: Paul Sujat 
Published: February 2021

Pregnancy in patients with systemic lupus erythematosus is associated with a high risk of maternal disease exacerbation and adverse fetal outcome. This review summarizes recent published findings on lupus pregnancy. Literature review: The literature has profound agreement on thefact that, for most women with inactive and stable systemic lups erythematousus, pregnancy is safe for both mother and fetus. The main risk factors for adverse pregnancy course and outcome are active disease, nephritis with proteinuria, hypertension and maternal serum antibodies to SS-A/Ro, SS-B/La, cardiolipin, 2-glycoprotein I, and lupus anticoagulant. Recent studies have broadened our understanding of the immunological mechanism underlying congenital heart block induced by anti-Ro/La antibodies. Pregnancy in patients with systemic lupus erythematosus is safe and manageable provided the disease is stable. Patients should be closely followed up before pregnancy for pregestational risk factors and should get extra attention during gregnancy. The disease can be safely managed in some cases of lupus flare during pregnancy.
JCMCTA 2012; 23(1): 53-56
Índice de funcionalidade de portais eletrônicos municipais: o acesso à informação em saúde
Authors: Moimaz Suzely Adas Saliba , Nascimento Carolina Carvalho Menez Pinto , Saliba Tânia Adas , Herval Ana Cláudia Festucci de , Zacharias Fabiana Costa Machado , Arcêncio Ricardo Alexandre , Garbin Cléa Adas Saliba 
Published: February 2021

Este estudo buscou investigar em que medida as informações em saúde vêm sendo disponibilizadas à população e o grau de funcionalidade dos sites quanto ao acesso às páginas eletrônicas oficiais dos municípios sede dos Departamentos Regionais de Saúde (DRS) do Estado de São Paulo. Procurou, também, verificar quais características sociodemográficas, econômicas e de saúde contribuem para explicar a funcionalidade dos portais eletrônicos municipais. Trata-se de um estudo de caráter descritivo-exploratório, conduzido em 17 cidades do estado de São Paulo. Apurou-se o Índice de Funcionalidade (IF) através da criação de um instrumento com 34 itens divididos em 4 dimensões. Posteriormente, configurou-se uma Regressão Linear Múltipla com as variáveis explicativas população, PIB, IDH-M, cobertura da Atenção Primária à Saúde, da Estratégia Saúde da Família e da Saúde bucal para verificar possíveis associações com o IF. A média do IF foi 18,35; dp. 4,39; mediana 18; mínimo 11 e o máximo 29. O modelo estatístico indicou que não houve associação estatisticamente positiva entre o IF e as variáveis explicativas. A disponibilização das informações em saúde nos portais eletrônicos municipais apresentou baixo IF, em grande parte deles. Não houve relação positiva entre o IF das páginas e suas características sociodemográfica, econômicas e de saúde.
Análise hidrogeomorfométrica da microbacia do rio Mutum: informações para auxiliar o manejo de recursos hídricos na Amazônia Ocidental
Authors: Souza Tiago Way Serrão de , Lima Marcelo Medeiros de , Saraiva Jhade Goudinho , Pacheco Fabrício Matheus Pimenta , Donegá Miquel Victor Batista , Panza Mylena Rego , Cavalheiro Wanderson Cleiton Schmidt , Vendruscolo Jhony 
Published: February 2021

O desenvolvimento sustentável de sistemas agropecuários tem como base o planejamento e a gestão dos recursos naturais, logo, é essencial conhecer as características da paisagem. Em face ao exposto, o presente trabalho tem como objetivo fornecer informações sobre as características hidrogeomorfométricas da microbacia do rio Mutum. A análise da paisagem foi realizada com os softwares Google Earth, QGIS e TrackMaker Free, imagens altimétricas dos satélites Alos, e dados da literatura. A microbacia tem área de 8,64 km2, perímetro de 15,26 km, formata alongada e baixa a média suscetibilidade a inundações (ponto de vista geométrico), altitudes de 228 a 322 m, predominância de relevos suave ondulado (50,81%) e ondulado (30,67%), 92,93% de sua área com baixa propensão a influência a propagação de incêndios e 92,94% apta à extremamente apta a mecanização agrícola, rede de drenagem de 17,30 km com padrão dendrítico de 4ª ordem, densidades de nascentes média, densidade de drenagem média, coeficiente de manutenção de 499,4 m2 m-1, canal principal reto e baixo tempo de concentração. A microbacia tem potencial para o desenvolvimento agropecuário, no entanto, a adoção de práticas de manejo conservacionista do solo é necessário para mitigar os impactos desta atividade no meio ambiente. É recomendado o estudo da dinâmica temporal e espacial da cobertura do solo, para analisar a qualidade e a quantidade de vegetação nativa na microbacia, e assim, delimitar áreas prioritárias para a manutenção e/ou recuperação dessa vegetação.
Simulating the Fast Prediction Strategy of the Sensorimotor System
Authors: Biscarini Andrea 
Published: February 2021

The values of a physiological parameter and its time derivatives, detected at different times by different sensory receptors, are processed by the sensorimotor system to predict the time evolution of the parameter and convey appropriate control commands acting with minimum latency (few milliseconds) from the sensory stimulus. We have derived a power-series expansion (U-expansion) to simulate the fast prediction strategy of the sensorimotor system. Given a time-function f, a time-instant t0, and a time-increment ττ, the U-expansion enables the calculation of τf(t0+τ) from f(t0) and the values f(n)(tn) of the derivatives f(n) of f at arbitrarily different times tn (n=1,2,…), instead of time t0 as in the Taylor series. For increments ττ significantly greater than the maximum t among the differences |tn−tn−1|, the error associated with truncation of the U-expansion at a given order closely equalizes the error of the corresponding Taylor series (t=0) truncated at the same order. Small values of t and higher values of ττ correspond to the high-frequency discharge of sensory neurons and the need for longer-term prediction, respectively. Taking inspiration from the sensorimotor system, the U-expansion can potentially provide an analytical background for the development of algorithms designed for the fast and accurate feedback control of nonlinear systems.
Size-Exclusion Particle Separation Driven by Micro-Flows in a Quasi-Spherical Droplet: Modelling and Experimental Results
Authors: Marinaro Giovanni , Riekel Christian , Gentile Francesco 
Published: February 2021

Aqueous solution droplets are supported quasi contact-free by superhydrophobic surfaces. The convective flow in evaporating droplets allows the manipulation and control of biological molecules in solution. In previous works, super-hydrophobic drops on nano-patterned substrates have been used to analyze otherwise undetectable species in extremely low concentration ranges. Here, we used particle image velocimetry (PIV) for studying the flow field in water droplets containing polystyrene particles on a pillared silicon super-hydrophobic chip. The particles describe vortex-like motions around the droplet center as long as the evaporating droplet maintains a spherical shape. Simulations by a Finite Element Method (FEM) suggest that the recirculating flow is due to the temperature gradient along the droplet rim, generating a shear stress. Notably, the characteristics of the internal flow can be modulated by varying the intensity of the temperature gradient along the drop. We then used the flow-field determined by experiments and an approximate form of the Langevin equation to examine how particles are transported in the drop as a function of particle size. We found that larger particles with an average size of μ36 μm are preferentially transported toward the center of the substrate, differently from smaller particles with a 10-fold lower size that are distributed more uniformly in the drop. Results suggest that solutions of spherical particles on a super-hydrophobic chip can be used to separate soft matter and biological molecules based on their size, similarly to the working principle of a time-of-flight (ToF) mass analyzer, except that the separation takes place in a micro-sphere, with less space, less time, and less solution required for the separation compared to conventional ToF systems.
Estudiar y enseñar en la sociedad de plataformas en tiempos de pandemia
Authors: Comba Silvana , Toledo Edgardo 
Published: February 2021

A partir de nuestra experiencia cotidiana como docentes de la Licenciatura en Comunicación Social y de nuestros recorridos de investigación, en este artículo nos centraremos particularmente en la reflexión sobre los consumos de información en la actual ecología de medios, en este contexto inédito de pandemia. El artículo también tiene por finalidad asumir el desafío de imaginar cómo enseñar/conocer y actuar en estos nuevos escenarios mediados por las plataformas. En esta sociedad de plataformas, con múltiples pantallas que pasaron a ocupar el centro de las prácticas de conocer, las operaciones de creación de sentido asumen modos particulares. Lo social –el contexto– siempre interviene en la dimensión cognitiva. Ambos, a su vez, se van influenciando constantemente en una relación dialéctica que por naturaleza es dinámica.
Stacked electrostatic angle sensor implemented in micro robot leg joints
Authors: Hara Tomoya , Asamura Kazuto , Nagata Yuya , Nagasawa Sumito 
Published: February 2021

Abstract
Recently, micro walking robots have attracted considerable research interest, as they can move robustly in various terrains and are especially useful in swarm applications. To realize angle control for the robots, external sensors such as rotary encoders were attached to joints. When assembling external sensors and joint components, careful handling and positioning are needed. However, robots requiring intricate assembly of multiple components are not optimal for the above-mentioned applications. We proposed the integration of robot frames and capacitive angle sensors to one compliant sheet. Moreover, a stacked electrostatic angle sensor was developed by alternately folding two ribbon electrodes. The angle was estimated from the capacitance based on the distance between the electrodes. The sensor was designed and fabricated. Furthermore, we constructed the angle feedback control system using the proposed sensor. Feedback control within the range of 0° to 30° could be realized.
Direct observation of magnetic process in quasi-antiferromagnet by high-resolution Kerr microscopy
Authors: Hashimoto Naoki , Horiike Shuu , Kurokawa Yuichiro , Tanaka Terumitsu , Chang Po-Chun , Lin Wen-Chin , Yuasa Hiromi 
Published: February 2021

Abstract
We investigated the relationship between the magnetic hysteresis loop and domain structure modulation of an artificial material, a quasi-antiferromagnet (AFM) with domains of alternating antiparallel magnetization fabricated by a strong 90° magnetic coupling between two ferromagnetic layers through an Fe–O thin layer. High-resolution Kerr images show simultaneous magnetization rotation, nucleation, and growth of stripe-type domains with maintained magnetization along the longitudinal direction of the domain. The nucleation and growth were dominant in the magnetization reversal of the quasi-AFM. By fitting not only the magnetization curve but also the domain structure to the Landau–Lifshitz–Gilbert equation, the 90° coupling coefficients were properly obtained, which enables us to design the magnetic structure of the quasi-AFM.
Analisis Sebelum dan Sesudah Dilakukan Proses Pembersiahan Terhadap Performa AC Tipe Split Wall Kapasitas 1 1/2 PK
Authors: Zayadi Ahmad , Yoga Utomo Kis , Sugiaharto Agus , S Wismanto , HP Cahyono , Madaskala Ananda Revalby 
Published: February 2021

Air conditioning in the room functions to regulate humidity, heating and cooling the air in the room. The purpose of this conditioning is to provide comfort for the user. The process of cleaning the condenser and evaporator pipe fins can improve compressor performance. The research was conducted on an air conditioner with a capacity of 1 1/2 PK using refrigerant R-22. With an average mass flow rate of 82.5 kg/s before cleaning and 79.6 kg/s after cleaning, it decreased by 4.4%. This has an impact on refrigeration where the average value of the impact of refrigeration before cleaning is 145.4 kJ/kg and after cleaning is 150.6 kJ/kg. This means that after the cleaning process, the evaporator can increase the refrigeration in the air conditioning system by 3.4%. The parameters used are the consumption of electrical power, the temperature of the refrigerant entering and leaving the condenser, the temperature of the refrigerant entering and leaving the evaporator. The increase in compressor performance after the cleaning process is carried out, it can be seen from the total value of electrical energy use before cleaning is 10.9 kWh, and after cleaning it becomes 8.8 kWh. This has an effect on the consumption of electrical energy to drive the compressor to be more efficient by 19.26%. COP an average of 3.6 before cleaning and after cleaning to 4.9 means an increase in compressor work by 1.3 or by 26.5%. Compressor work has decreased by 4440.4 Watts or a decrease of 26.8%.