bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transient Heat and Mass Transfer Flow through Salt Water in an Ocean by Inclined Angle
Authors: Karim lfsana , Khan M.S. , Alam M.M. , Rouf M.A. , Ferdows M. , Tzirtzilakis E.E. 
Published: March 2017

Abstract
In the present computational study, the inclined angle effect of unsteady heat and mass transfer flow through salt water in an ocean was studied. The governing equations together with continuity, momentum, salinity and temperature were developed using the boundary layer approximation. Cartesian coordinate system was introduced to interpret the physical model where x-axis chosen along the direction of salt water flow and y-axis is inclined to x-axis. Two angle of inclination was considered such as 90° and 120°. The time dependent governing equations under the initial and boundary conditions were than transformed into the dimensionless form. A numerical solution approach so-called explicit finite difference method (EFDM) was employed to solve the obtained dimensionless equations. Different physical parameter was found in the model such as Prandtl number, Modified Prandtl number, Grashof number, Heat source parameter and Soret number. A stability and convergence analysis was developed in this study to describe the aspects of the finite difference scheme and this analysis is significant due to accuracy of the EFDM approach. The convergence criteria were observed to be in terms of dimensionless parameter as Pr ≥ 0.0128 and Ps ≥ 0.016. The distributions of the temperature and salinity profiles of salt water flow over different time steps were investigated for the effect of different dimensionless parameters and shown graphically.
Non-Destructive Analysis of Basic Surface Characteristics of Titanium Dental Implants Made by Miniature Machining
Authors: Babík Ondrej , Czán Andrej , Holubják Jozef , Kameník Roman , Pilc Jozef 
Published: March 2017

Abstract
One of the most best-known characteristic and important requirement of dental implant is made of biomaterials ability to create correct interaction between implant and human body. The most implemented material in manufacturing of dental implants is titanium of different grades of pureness. Since most of the implant surface is in direct contact with bone tissue, shape and integrity of said surface has great influence on the successful osseointegration. Among other characteristics of titanium that predetermine ideal biomaterial, it shows a high mechanical strength making precise machining miniature Increasingly difficult. The article is focused on evaluation of the resulting quality, integrity and characteristics of dental implants surface after machining.
Placenta accreta: Elective versus emergent delivery as a major predictor of blood loss
Authors: Seoud M.A. , Nasr R. , Berjawi G.A. , Zaatari G.S. , Seoud T.M. , Shatila A.S. , Mirza F.G. 
Published: March 2017

OBJECTIVE: To compare blood loss and the use for blood transfusion between elective (planned) and emergent cesarean hysterectomy performed for placenta accreta by a single, multidisciplinary team and to present the team’s pre-operative evaluation and the surgical technique. STUDY DESIGN: Prospective cohort study at a single tertiary care center. Maternal and neonatal outcomes were compared between elective and emergent delivery of pregnancies complicated by placenta accreta. The primary outcomes were the need for blood transfusion and the number of units transfused. RESULTS: A total of 28 cases of confirmed placenta accreta underwent peripartum hysterectomy, including 22 as elective and 6 as emergent. Eleven out of 22 (50%) subjects in the elective group received blood transfusion, while all subjects in the emergency group required transfusion ( p = 0.03). More importantly, the number of units of packed red blood cells transfused was only 1.90 (±2.20) units in the elective cases compared to 7.83 (±4.90) units in cases performed emergently ( p = 0.03). CONCLUSION: Elective cesarean hysterectomy for this indication using a clearly outlined surgical approach is associated with significantly lower blood loss and hence less need for transfusion, compared to its emergent counterpart.
Optimal radiologic position of an umbilical venous catheter tip as determined by echocardiography in very low birth weight newborns
Authors: Karber B.C.F. , Nielsen J.C. , Balsam D. , Messina C. , Davidson D. 
Published: March 2017

OBJECTIVE: To compare chest X-ray with echocardiogram (ECHO) in the localization of an umbilical venous catheter (UVC) tip in very low birth weight infants (VLBW). Secondary objectives determined the association between techniques for tip placement by the vertebral body level on X-ray, as well as the length of the thoracic inferior vena cava-right atrial (TIVC-RA) junction by ECHO. STUDY DESIGN: Prospective, sequentially enrolled, masked, single regional perinatal center study. Shortly after birth, one or more anterior-posterior X-rays were ordered by the clinical team to verify that the UVC tip was fixed in the central right atrium (cRA) or at the TIVC-RA junction. An echocardiogram was performed as soon as possible after the last X-ray and UVC tip location was interpreted by a pediatric cardiologist. The pediatric radiologist and cardiologist were masked with regard to each other’s reading. RESULTS: The newborns ( n = 51) were 27 (±3) weeks by gestational age with birth weights of 1029 (±288) grams (mean±SD). The radiologist read 50 UVC tips (98%) in the cRA or TIVC-RA junction and 1 (2%) in the LA. The cardiologist read 22 (43%) in the cRA or TIVC-RA, 21 (41%) in the LA and 8 (16%) tips could not be located in the heart. When the UVC tip was interpreted by X-ray as located in the TIVC-RA junction 8/29 (28%) were in the LA by echocardiogram. There was no agreement between vertebral level and tip position in the TIVC-RA junction, RA or LA. The TIVC-RA junction measured 6±1 mm and correlated with birth weight r = 0.54 ( p < 0.001). CONCLUSION: In VLBW newborns, placement of the UVC tip into the cRA or TIVC-RA junction by X-ray does not avoid misplacement in the left atrium as demonstrated by echocardiography. For VLBW infants, it is suggested that echocardiography may be helpful in verifying that the original placement or migration of the UVC tip into the LA has not occurred.
Endothelin 1 as a predictor marker for bronchopulmonary dysplasia in preterm neonates with respiratory distress syndrome
Authors: El Shemi M.S. , Tawfik S. , Khafagy S.M. , Hamza M.T. , Youssef A.M.A. 
Published: March 2017

OBJECTIVE: We aimed to investigate if endothelin 1 concentration at day 3 postnatal age could be used as a predictive marker for development of bronchopulmonary dysplasia in preterm neonates with respiratory distress syndrome. METHODS: This prospective observational study was done on 69 preterm neonates with gestational ages between 28 and 34 weeks and diagnosed as having respiratory distress syndrome. Serum concentrations of endothelin 1 was measured for all patients at day 3 of life and they were divided into BPD and No-BPD groups according to whether they developed bronchopulmonary dysplasia or not. RESULTS: A total of 17 infants were in the BPD group and 52 infants were in the No-BPD group. Serum endothelin 1 was significantly higher in the BPD group (435.39±172.88) compared with the No-BPD group (302.65±49.32) ( p < 0.001). Serum endothelin 1 correlated significantly with days spent on mechanical ventilation ( r = 0.379, p = 0.022) and days spent on CPAP ( r = 0.391, p = 0.001). A serum endothelin 1 cut off value of 302.7 ng/L could predict preterm that will develop bronchopulmonary dysplasia with a sensitivity of 88.24%, and specificity of 61.54%. CONCLUSION: Serum endothelin 1 is significantly increased at day 3 of life in preterm neonates with respiratory distress syndrome who later develop bronchopulmonary dysplasia (BPD). It seems to be a promising predictive marker for BPD but further studies are needed to find the appropriate time for its measurement.
Assessment of serum apolipoprotein B and apolipoprotein A-1 and their ratio in healthy full term small for gestational age newborns
Authors: Agrawal A. , Shrivastava J. , Dwivedi R. , Siddiqui M. 
Published: March 2017

BACKGROUND: Programmed changes in growth restricted fetuses can increase the risk of adulthood diseases due to elevated serum cholesterol and apolipoprotein-B (Apo-B) concentrations. Increasing evidence demonstrated the role of apoB/apoA-I ratio as a strong risk factor for cardiovascular diseases. OBJECTIVE: To determine the concentration of cord blood lipoproteins and apolipoproteins as well as their correlation with birth weight. METHODS: This cross-sectional study was conducted in a teaching institution in central India. Healthy full-term newborns, born out of normal vaginal deliveries, were recruited. Cases include term small for gestational age (SGA) babies while term appropriate for gestational age (AGA) babies were taken as controls. Their umbilical venous blood was collected and sent for biochemical analysis. RESULTS: Out of 126 healthy newborns, 66 were cases and 60 were controls. Mean values of serum triglyceride (141.56±69.67 mg/dl vs. 113.67±33.38 mg/dl; p < 0.006; 95% CI = 8.31 to 47.46) and serum apo-B/apo-A-1 ratio (0.67±0.28 vs. 0.55±0.20; p < 0.007; 95% CI = 0.033 to 0.206) were significantly high and that of serum high density cholesterol (35.84±10.42 mg/dl vs. 40.73±11.70 mg/dl; p < 0.014; 95% CI = –8.79 to –0.98) and Apo-A1 [87.59±12.44 mg/dl vs. 101.87±35.07 mg/dl; p = 0.002; 95% CI = –23.39 to –5.16) were significantly low in SGA newborns. Serum cholesterol, very low-density cholesterol rlow-density cholesterol rand Apo-B did not show any significant difference. Among SGA newborns significant negative correlation was seen between birth weight and apo-B/apo-A1 and serum triglyceride, while birth weight and serum apo-A1 level showed significant positive correlation. There was no statistically significant correlation between birth weight and other parameters. CONCLUSION: These findings further support the association of prenatal factors with lipid profile rand can serve as starting point for studying lipid transport system changes during early life in Indian population.
Le karst du sud et de l'ouest du Moncayo (Cordillère Ibérique Soria - Espagne)
Authors: Sanz Perez Eugenio 
Published: March 2017

The southern and western karst of «Sierra del Moncayo» (Cordillera iberica, Soria, Spain)
The present work is a summary of our doctoral thesis about the karst on the southern and eastern slopes of the Moncayo (Sanz Perez, 1984). An interesting example of subterranean capture from the atlantic watershed to the mediterranean is shown, qualitatively and quantitatively demonstrated through diverse hydrogeological techniques of study. In the first part of the article, diverse karstic forms are described, among those which the Araviana Polje, with a surface area of 37 km2. Subsequently, the hydrogeological characteristics and functioning of the karst are explained, arriving at the establishment of a detailed hydraulic balance from which it is deduced that 70% of the water feeding the Vozmediano stream, the only discharge in the aquifer, of 1.1 m3/s, and situated in the Ebro valley, comes from the Duero basin.
Le point des recherches karstologiques en U.R.S.S
Authors: Kisselov V. , Klimchouk Alexander , Doubliansky V. 
Published: March 2017

Karst researches in U.S.S.R
Karst researches in U.S.S.R. have obtained a further development during these last years. Numerous regional investigations have been realized, especially in Crimea, western Caucasus, Podolia, Ural, central Asia and southern Siberia. Some works on caves sedimentology have permitted to develop the knowledge on speleogenesis. Interesting studies are performed on speleoclimatology and ice caves («thermo-karst»). Several contributions on the modern practical speleology are underlied : speleo-medicine, speleological techniques on steel cables, surveying, morphometry, applied speleology, show caves.
Paléokarst paléozoïque en Antarctique
Authors: Maire Richard , Laurent Roger 
Published: March 2017

Paleozoic karst in Antarctica
Karst features in Antarctica have been rarely observed. In their study on the geology of the Beardmore Glacier area in the Transantarctic Mountains (south of Ross Ice Shelf), Barret and al., (1968) describe a preglacial karst topography (Mt. Counts) and especially a former cave (Ø 10 m) 10 m below the erosion surface and filled with coarse green sandstone. Shaped in the «Shackleton limestone» (Low to Middle Cambrian) probably during the Permo-Carboniferous (hercynian cycle), this karst is fossilized by the «Pagoda formation», permian tillite of the «Beacon sequence» (Devonian-Permian-Triassic).
Perception du changement organisationnel et concept de développement personnel : entre ambivalence et performativité
Authors: Batazzi Claudine 
Published: March 2017

Si le concept de « changement organisationnel » fait l’objet de pléthore de travaux en sciences de gestion – un peu moins cependant en sciences de l’information et de la communication – l’originalité et la pertinence de la problématique soulevée ici résident bien dans le lien entre « développement personnel » et « changement organisationnel ». Aussi avons-nous pris le parti de considérer ces deux notions comme des construits qui s’instituent l’un et l’autre, au cœur d’un processus récursif entre individuel et collectif, entre formes symboliques et formes organisationnelles, entre délibéré et émergent.
Ubc9 Is Required for Positive Selection and Late-Stage Maturation of Thymocytes
Authors: Wang Aibo , Ding Xiao , Demarque Maud , Liu Xindong , Pan Deng , Xin Huawei , Zhong Bo , Wang Xiaohu , Dejean Anne , Jin Wei , Dong Chen 
Published: March 2017

Abstract
SUMOylation is an important posttranslational modification that regulates protein function in diverse biological processes. However, its role in early T cell development has not been genetically studied. UBC9 is the only E2 enzyme for all SUMOylation. In this study, by selectively deleting Ubc9 gene in T cells, we have investigated the functional roles of SUMOylation in T cell development. Loss of Ubc9 results in a significant reduction of CD4 and CD8 single-positive lymphocytes in both thymus and periphery. Ubc9-deficient cells exhibit defective late-stage maturation post the initial positive selection with increased apoptosis and impaired proliferation, among which attenuated IL-7 signaling was correlated with the decreased survival of Ubc9-deficent CD8 single-positive cells. Furthermore, NFAT nuclear retention induced by TCR signals was regulated by SUMOylation during thymocytes development. Our study thus reveals a novel posttranslational mechanism underlying T cell development.
Def6 Restrains Osteoclastogenesis and Inflammatory Bone Resorption
Authors: Binder Nikolaus , Miller Christine , Yoshida Masaki , Inoue Kazuki , Nakano Shinichi , Hu Xiaoyu , Ivashkiv Lionel B. , Schett Georg , Pernis Alessandra , Goldring Steven R. , Ross F. Patrick , Zhao Baohong 
Published: March 2017

Abstract
Inflammatory bone resorption mediated by osteoclasts is a major cause of morbidity and disability in many inflammatory disorders, including rheumatoid arthritis (RA). The mechanisms that regulate osteoclastogenesis and bone resorption in inflammatory settings are complex and have not been well elucidated. In this study, we identify the immunoregulator differentially expressed in FDCP 6 homolog (Def6) as a novel inhibitor of osteoclastogenesis in physiological and inflammatory conditions. Def6 deficiency in Def6−/− mice enhanced the sensitivity of osteoclast precursors to the physiological osteoclastogenic inducer receptor activator for NF-κB ligand, and Def6−/− osteoclasts formed actin rings. Furthermore, Def6 deficiency markedly increased TNF-α–induced osteoclastogenesis in vitro and in vivo and enhanced bone resorption in an inflammatory osteolysis mouse model. TNF-α serum levels correlated negatively with Def6 expression levels in osteoclast precursors obtained from RA patients, and the osteoclastogenic capacity of the osteoclast precursors was significantly inversely correlated with their Def6 expression levels, indicating that Def6 functions as an inhibitor of excessive osteoclast formation and bone destruction in RA. Mechanistically, Def6 suppressed osteoclastogenesis and the expression of key osteoclastogenic factors NFATc1, B lymphocyte–induced maturation protein-1, and c-Fos by regulating an endogenous IFN-β–mediated autocrine feedback loop. The Def6-dependent pathway may represent a novel therapeutic target to prevent pathological bone destruction.
Knowledge, Attitude, Behavior, and Practice toward Minimal Intervention Dentistry among Dental Professionals in Bengaluru City, India
Authors: Suma, G , Salman Yasin 
Published: March 2017

ABSTRACT

Aims
The emphasis on caries prevention and early detection has led to a paradigm shift toward the concept of minimal intervention dentistry (MID). Despite the benefits of MID in the preservation of dental components and significant reliability, the clinical application is still limited. This study was, therefore, aimed to assess the knowledge, attitude, practices, and clinical decision behaviors of dental professionals of Bengaluru city, Karnataka, India.

Materials and methods
A cross-sectional questionnaire-based survey was conducted in Bengaluru city, Karnataka, India, in the year 2016 for a period of 1 month among dental professionals. Data were collected using 25 questions focused on knowledge, attitude, practice, and behavior toward MID. The descriptive data were analyzed; statistical evaluation was done by chi-square test.

Results
Among 100 respondents, the mean scores for knowledge, attitude, and clinical decision were 3.57 ± 0.685, 0 to 4; 18.84 ± 2.21, 5 to 25; and 4.69 ± 0.78, 0 to 6 respectively. Data showed that dental professionals had adequate knowledge and a positive attitude toward MID. A weak positive correlation was seen between knowledge and attitude (r = –0.059, p = 0.55) and knowledge and clinical decision (r = –0.050, p = 0.62).

Conclusion
Adequate knowledge and positive attitude neither influenced their clinical decision-making behavior nor their practical application of MID. A nationwide awareness campaign has to be done to alarm the authorities in making and implementing a course of action for updating the practice and clinical decisions behaviors of dental professionals in the country.

How to cite this article
Suma G, Salman Y. Knowledge, Attitude, Behavior, and Practice toward Minimal Intervention Dentistry among Dental Professionals in Bengaluru City, India. J Health Sci Res 2017;8(1):20-24.
Comparative Evaluation of Coronally Advanced Flap with Platelet-rich Fibrin vs Amniotic Membrane for the Treatment of Gingival Recession
Authors: Gautam Abhishek 
Published: March 2017

ABSTRACT

Background
The purpose of this clinical trial was to compare the outcome of gingival recession technique using the coronally advanced flap (CAF) with platelet-rich fibrin (PRF) and amniotic membrane.

Materials and methods
About 15 patients with bilateral Miller class I buccal gingival recessions (4–5 mm) in maxillary and mandibular canines were selected. The recessions were randomly assigned to receive either the CAF with PRF or the CAF with amniotic membrane. Recession height (RH), recession width (RW), width of keratinized tissue (WKT), thickness of keratinized tissue (TKT), probing depth (PD), and clinical attachment level (CAL) were measured at baseline as well as 6 months postsurgery. Patient satisfaction with esthetics, root sensitivity, and postoperative pain was also evaluated.

Results
The average percentages of root coverage for CAF with PRF and CAF with amniotic membrane were 92.95% and 97.40% (p < 0.05) respectively, and the complete root coverage observed was 56.94% and 76.47% respectively. The CAF with amniotic membrane showed a statistically significant increase in TKT (p < 0.05). There were no significant differences between the two groups with regard to RH, RW, WKT, PD, and CAL. The esthetic condition after both treatments was considered satisfactory by the patients.

Conclusion
The outcome of this study reflects that CAF with PRF and amniotic membrane can be successfully used to treat class I gingival recession.

How to cite this article
Gautam A. Comparative Evaluation of Coronally Advanced Flap with Platelet-rich Fibrin vs Amniotic Membrane for the Treatment of Gingival Recession. J Health Sci Res 2017;8(1):31-37.
Cytomorphological Study of Oral Exfoliated Cells in Type II Diabetes Mellitus Patients
Authors: Sheethal HS , Srinivasan, Shruti , Priya, NS , Rao, Kavita , Umadevi, HS , Smitha, T 
Published: March 2017

ABSTRACT

Introduction
Diabetes mellitus (DM) is one of the most common endocrine metabolic disorders and its prevalence has been increasing worldwide. It is a third leading cause of mortality and morbidity in the world. Diabetes affects several organs including the oral cavity. The oral complications of uncontrolled DM can include xerostomia, infection, poor healing, increased incidence and severity of caries, candidiasis, gingivitis, periodontal disease, periapical abscesses, and burning mouth syndrome. Early diagnosis of the DM is an important aspect of health care. Exfoliative cytology is considered a moderate, straightforward, and noninvasive diagnostic marker for DM. The purpose of this study is to demonstrate cytologic changes of the exfoliated oral mucosal cells of diabetic patients using hematoxylin and eosin (H&E) staining technique to establish its role as diagnostic criteria.

Results
The frequency of micronuclei, enlarged nucleus, perinuclear halo, binucleation, cytoplasmic streaks, Candida, and inflammation were found to be statistically significant.

Conclusion
Clinical observations and results suggested morphologic and functional alterations in oral epithelial cells in diabetic patients, detectable by microscopic and cytomorphometric analysis using exfoliative cytology and can be used in diagnosis.

Clinical significance
The purpose of this study is to demonstrate cytologic changes of the exfoliated oral mucosal cells of diabetic patients using H&E staining technique to establish its role as diagnostic criteria.

How to cite this article
Srinivasan S, Priya NS, Rao K, Umadevi HS, Smitha T, Sheethal HS. Cytomorphological Study of Oral Exfoliated Cells in Type II Diabetes Mellitus Patients. J Health Sci Res 2017;8(1):38-41.
THEMIS satellite observations of hot flow anomalies at Earth's bow shock
Authors: Chu Christina , Zhang Hui , Sibeck David , Otto Antonius , Zong QiuGang , Omidi Nick , McFadden James P. , Fruehauff Dennis , Angelopoulos Vassilis 
Published: March 2017

Abstract. Hot flow anomalies (HFAs) at Earth's bow shock were identified in Time History of Events and Macroscale Interactions During Substorms (THEMIS) satellite data from 2007 to 2009. The events were classified as young or mature and also as regular or spontaneous hot flow anomalies (SHFAs). The dataset has 17 young SHFAs, 49 mature SHFAs, 15 young HFAs, and 55 mature HFAs. They span a wide range of magnetic local times (MLTs) from approximately 7 to 16.5 MLT. The largest ratio of solar wind to HFA core density occurred near dusk and at larger distances from the bow shock. In this study, HFAs and SHFAs were observed up to 6.3 RE and 6.1 RE (Earth radii), respectively, upstream from the model bow shock. HFA–SHFA occurrence decreases with distance upstream from the bow shock. HFAs of the highest event core ion temperatures were not seen at the flanks. The ratio of HFA ion temperature increase to HFA electron temperature increase is highest around 12 MLT and slightly duskward. For SHFAs, (Tihfa∕Tisw)/(Tehfa∕Tesw) generally increased with distance from the bow shock. Both mature and young HFAs are more prevalent when there is an approximately radial interplanetary magnetic field. HFAs occur most preferentially for solar wind speeds from 550 to 600 km s−1. The correlation coefficient between the HFA increase in thermal energy density from solar wind values and the decrease in kinetic energy density from solar wind values is 0.62. SHFAs and HFAs do not show major differences in this study.