bluuebunny/crossref_metadata_2025_split huggingface dataset:
The trichotomic machine
Authors: Marty Robert 
Published: March 2019

Abstract
The formal analysis of the principles leading the classification of the hexadic, decadic, and triadic signs from C. S. Peirce especially, gives rise to a general methodology allowing to systematically classify any n-adic combinatory named “protosign.” Basic concepts of the algebraic theory regarding the categories and functors will be used. That formalization provides an additional benefit by highlighting and systematizing formal immanent relationships between the classes of protosigns (or signs). Well known hierarchical structures (lattices) are then obtained. Thanks to the contribution of specific concepts in the Homological Algebra, new methodologies of analysis and creation of significations can be introduced.
Test-retest repeatability of questionnaire for pain symptoms for school children aged 10–15 years
Authors: Pirnes Katariina P. , Kallio Jouni , Siekkinen Kirsti , Hakonen Harto , Häkkinen Arja , Tammelin Tuija 
Published: March 2019

Abstract

Background and aims
There is a growing body of evidence, that pain is common at school age. Less is known about the repeatability of pain questionnaires for children. This study aimed to assess the test-retest repeatability of the Finnish version of the electronic pain questionnaire for school-aged children.

Methods
Primary (n = 79) and lower secondary (n = 127) schoolchildren aged 10–15 years from two schools from the Jyväskylä region of Finland, filled in an electronic questionnaire twice in an interval of 2 weeks. It captured the frequency of pain symptoms with a five-point Likert-scale questionnaire covering nine areas of the body for the last 3 months. The intraclass correlation coefficient (ICC) values 0.40–0.59 reflected fair and 0.60–0.74 good repeatability.

Results
The highest prevalences of pain were in the head (29%) and neck and shoulder (NS) (23%) areas. ICC values showed good repeatability for questions about pain frequency in the head, NS and lower extremities. In primary school, these values were good in the lower extremities and fair in NS, lower back and the head. In lower secondary school, the ICC values were good in NS and the head, fair in the stomach and lower extremities.

Conclusions
This electronic questionnaire was an acceptably repeatable indicator to measure the frequency of pain in the most prevalent pain areas: the head and NS.

Implications
It is important to be aware of the impact of health-related outcomes on children’s ability to be successful in their lives. With the help of a simple electronic questionnaire, it is possible to cost-effectively capture, for example, the prevalence and frequency of pain during the school hours. The identification of children’s pain symptoms accurately provides more possibilities to prevent and to minimize the chronic pain among schoolchildren.
Synthesis and Antiplatelet Potential Evaluation of 1,3,4-Oxadiazoles Derivatives
Authors: Ramzan Ayesha , Nazeer Areesha , Irfan Ahmad , Al-Sehemi Abdullah G. , Verpoort Francis , Khatak Zafar A. , Ahmad Aftab , Munawar Munawar A. , Khan Misbahul A. , Basra Muhammad Asim Raza 
Published: March 2019

Abstract
A novel series of 2-(3-methyl-1,6-diphenyl-1H-pyrazolo[3,4-b]pyridin-4-yl)-5-aryl-1,3,4-oxadiazoles (4a–4h) has been synthesized from corresponding hydrazones (3a–3h) and evaluated their antiplatelet aggregation effect induced by arachidonic acid and collagen. Spectral data and elemental evaluation were used to confirm the structure of the compounds while molecular docking against cyclooxygenase 1 and 2 (COX1 & COX2) and quantitative structure-activity relationship (QSAR) were performed in describing their antiplatelet potential. All synthesized compound exhibited more than 50% platelet aggregation inhibition against both arachidonic acid and collagen. Antiplatelet activities results showed that 4b and 4f compounds have highest % inhibition against arachidonic acid. High Egap and ionization potential values showed that the compound 4d, 4e and 4f were supposed to be more active and good electron donor while 4b, 4c, 4d, 4e, 4g and 4h might be more active due to more electrophilic sites. Interaction with more than one residues in the binding pocket of COX-1 in comparison with aspirin and ligand efficacy (LE) consequences showed that compounds have excellent action potential for COX-1. Computational evaluations are in good agreement with antiplatelet activities of the compounds. All compounds might be promising antiplatelet agents especially 4b, 4f and helpful in the synthesis of new drugs for the treatment of cardiovascular diseases (CVDs).
A virtude do Desenho_ na proximidade do projeto
Authors: Alves dos Santos Magalhães Graça Maria , Mendes de Seiça da Providência Santarém Francisco Maria 
Published: March 2019

Do ponto de vista heurístico, o desenho recria modos de ver que são dinamizadores do projeto. O desenho, como sustentação e impulsionador da ideia, vai ao longo do projeto contribuindo para o seu desenvolvimento e conformação de forma independente e esclarecedora. Neste caso, trataremos, genericamente, da visibilidade das imagens e, em particular, os cadernos do desenhador e designer Francisco Providência (1961 - ), debruçando-nos sobre as questões do desenho enquanto imagem e instrumento do projeto. Assunto antigo, tanto quanto a palavra disegno como referência fundadora da prática de desenhar como atividade do corpo e do espírito. Neste caso, a nossa reflexão parte da observação e manipulação dos cadernos do autor, cuja ideia de representação extravasa a consideração funcional das imagens de projeto, considerando-as matéria visiva por excelência, propensa à manipulação criativa.
Movilidad y accesibilidad universal en la arquitectura. Caso Universidad San Gregorio de Portoviejo. Ecuador
Authors: Bonilla Ponce Andrea Nataly , Alcívar Vélez Danny Emir , García Muñoz José Elvis , Carrillo Franco Alexi Jaime 
Published: March 2019

El trabajo de investigación desarrollado consiste en el estudio de la movilidad y accesibilidad universal en la arquitectura, aplicado en los espacios que conforman la Universidad San Gregorio de Portoviejo (USGP), institución de educación superior ubicada en la Ciudad de Portoviejo, Provincia de Manabí, en la República del Ecuador. El objetivo de este trabajo es determinar la situación actual de la movilidad y la accesibilidad universal que propician todos los espacios construidos de la USGP, mediante la aplicación de técnicas de investigación que permitirán identificar las potencialidades y debilidades que brinda el campus universitario hacia todas las personas que acceden a ella, de acuerdo a lo que establecen las leyes y normativas técnicas tanto nacionales como internacionales. La base metodológica aplicada consiste en la aplicación de fichas de observación elaboradas por la Secretaría Técnica de Discapacidades del Ecuador (SETEDIS), las cuales constituyen un instrumento útil para el diagnóstico de elementos arquitectónicos construidos y, por tanto, permiten concluir si el objeto arquitectónico posee espacios acordes a la accesibilidad desde un punto de vista integral.Palabras clave: accesibilidad universal; arquitectura integral; inclusión; movilidad.
Spatial Pattern of Water Quality on Coral Reef Area Around Kaledupa Island
Authors: L. Salim Hadiwijaya , Purbani Dini , Rustam Agustin , - Yulius , D. Suryono Devi , Prihantono Joko 
Published: March 2019

Healthy coral reefs depends on the quality of the waters , so that research and monitoring of water quality becomes important. This research attempt to asses marine waters quality at kaledupa island and it’ s surrounding waters on October and November 2014. 33 In-situ samples were collected using multiparameters tool purposively which are categorized into physical parameters (temperature, turbidity and clarity), and chemical parameters (DO, salinity and pH). Waters quality defined by STORET method based on Ministry of Living Environment decree number 115 year of 2003. Analysis geographically has been conducted to describe distribution of waters quality spatially. The result shows that Kaledupa waters has sustain slightly pollution, especially on DO, turbidity, temperature and salinity parameters which have deviated from standard values. The light pollution in Kaledupa waters is suspected caused by the entry of abundance organic matter and shallow bathymetry.
Influence of gas atomization parameters of alloy KhN60M on the characteristics of powder for laser surfacing
Authors: Kalinin K. V. , Oglezneva S. A. , Nagaev M. S. 
Published: March 2019

The object of the study was alloy powders KhN60М (EP367; 06Kh15N60М1). An overview of methods for manufacturing products from heat-resistant alloy KhN60M with an analysis of their advantages and disadvantages is given. It is shown that in comparison with injection molding and hot pressing of powders from high-alloyed special steels and alloys, additive technologies allow to obtain products of complex shape with a high level of physical and mechanical properties and material utilization. The low casting properties of the alloy under study cause the research of the atomization to meet the requirements for size, shape, morphology and fluidity of powders for additive technologies. The goal of the work was to study the effect of argon pressure during gas atomization on the physical, chemical, technological properties of powders for laser surfacing, obtained from alloy KhN60М. The technology of gas spraying of liquid melt with argon on a VIGA 2B laboratory atomizer at a temperature of 1560 °C and varying the pressure of the spraying gas in the range of 22–25 mbar was used for the manufacture of metal powder KhN60М. To select the atomization parameters, the melt viscosity values were calculated using the finite element method and its temperature dependence was constructed. The calculations were made with the ProCAST computer modeling system for casting processes. The shape and size of particles, the grain size composition were investigated using laser sedimentation, electron and optical microscopy. Quantitative metallography data were processed using the VideoTest 4 software. Fluidity of powders was measured. It was found that with increasing pressure of the spraying gas, the proportion of spherical particles increased and the fluidity of the powders improved; Feret diameter, average particle size, and d50 values did not change significantly. An experimental dependence of the increase in the yield of the powder of the target fraction (40–80 μm) with a decrease in the volume of the spray gas supply was obtained. An inversely proportional dependence of the fraction of spherical particles on the fraction of the desired cut was established. The results of the study make it possible to predict the values of the output parameters of powders during the atomization of steel KhN60M. Characteristics of powders of the –80+40 μm fraction with a shape factor of 0.99 and a yield point of 14–15 g/s make it possible to use them for the manufacture of products using additive technologies.
Physical-chemical processes of obtaining ceramic materials based on nanopowders of oxides of zirconium, yttrium, cerium and aluminum
Authors: Makarova E. N. , Antsiferova I. V. 
Published: March 2019

In the study of nanoceramics, it is necessary to constantly keep in mind the closest interrelation of the production method with its structure and properties. Nanoceramic materials are used in various technical fields as structural and functional materials. It is also widely used in medicine. Nanoceramics is harmless, stable and has a great affinity with living organisms. ZrO2-based nanoceramics have a lower elastic modulus than other oxide materials. The specificity of its application lies in high resistance to rupture and thermal shock, in chemical stability at high temperatures. However, it is necessary to solve the problem of increasing the fracture toughness of ZrO2-based ceramic materials. The complex doping of ZrO2 with yttrium and cerium oxides and the use of an Al2O3 additive increase the fracture toughness and decrease the negative effect of materials in a biological environment. In this paper, the main physicochemical properties of ceramic powders and materials of the ZrO2–2Y2O3–4CeO2 – Al2O3 system, synthesized by chemical deposition of inorganic precursors using the sol-gel technology, are considered on the basis of scientific data and experimental studies. The doping of pure zirconium oxide with stabilizing oxides Y2O3, CeO2, and thermal hardening of Al2O3 ensures that the tetragonal structure is maintained at room temperature, which makes it possible to slow down and control the crack resistance of the material under load. The effects of sintering temperature and aluminum oxide content on the microstructure and grain size, as well as the physicomechanical properties of the resulting ceramic material of ZrO2–2Y2O3–4CeO2+1 wt.% Al2O3 and ZrO2–2Y2O3–4CeO2+3 wt.% Al2O3 were studied.
Structure and properties of corrosion-resistant steel obtained by selective laser melting
Authors: Smetkin A. A. , Oglezneva S. A. , Kalinin K. V. , Khanipov E. F. 
Published: March 2019

The objects of study were stainless steel powder 12Kh18N10T of the 20–63 μm fraction and experimental samples obtained on the basis of it by selective laser melting (SLM). The powder was obtained by spraying with argon at a temperature of 1640 °C and a pressure of 27 bar. The particles have the dendritic-cellular structure, with a decrease in their size (<35 μm), the cellular structure prevails, and the dendritic one almost disappears. The distinctive particle size is d50 = 37 μm, d100 = 67 μm. The differential distribution curve is close to the Gaussian form, and asymmetry is associated with satellite and the presence of a small number of particles less than 20 microns in size. The fluidity of the powder was 3,27 g/s, and the bulk density was 4,41 g/cm3. The density of the 12Kh18N10T steel samples grown at the Concept Laser M2 facility with a laser power of 180 W and a speed of 700 mm/s averaged 7,89 g/cm3. Since the density of compact steel is 7,95 g/cm3, the obtained material has enough high density. The microstructure of the 12Kh18N10T sample was described by continuity, the absence of pores and cracks. It was a solid solution of austenite. The average size of coherent scattering regions in the grain volume was 19 nm. The observed arcuate boundaries of parallel semicircular tracks are due to heat removal during crystallization through SLM. The elongated crystallites in the tracks are oriented inward from this boundary. The microhardness of the samples in the transverse plane of the thin section is higher than the microhardness of the planar plane. But the microhardness of the samples obtained from the powder by the SLM is higher than that of the standard compact alloy. Tensile strength and elongation are 651 MPa and 47 %, respectively. The increase in strength is probably due to the grinding of structural parameters in SLM. The fracture surface of the samples is characterized by a pronounced viscous type.
Investigation of the mechanical and physical properties of PLA produced by injection molding for matrix material of polymer composites
Authors: Cakir 1 Sedef , Aycicek 1 Muhammed , Akinci 1 Akin 
Published: March 2019

Polymer materials are increasingly being used due to their superior properties such as light weight, low cost and corrosion resistance. The difficult destruction of highly advantageous polymers in the environment leads to environmental problems and has some disadvantages as they are obtained from exhausted sources such as oil. These problems brought new quests and biopolymers derived from renewable sources came to the forefront. In this study, mechanical and physical test results applied to PLA, which is biopolymer and their use as matrix are investigated. Mechanical tests show that PLA, which has a tensile strength of 46.88 MPa, an impact strength of 9.27 kJ/m2 and a hardness of 79.6 Shore D, can be used as a substitute for polymers derived from petroleum-based sources.
Identité narrative et intertextualité dans l’ecriture autofictionnelle d’Helene Cixous et d’Annie Cohen
Authors: Peral Crespo Amelia 
Published: March 2019

Quel rôle joue la mémoire dans la construction d’une identité plurielle ? Quelle en est la représentation dans l’écriture autofictionnelle d’Hélène Cixous et d’Annie Cohen ? Si la mémoire présuppose une représentation de l’expérience vécue, elle implique alors la reconstruction subjective que le sujet réalise dans le discours narratif. Dès lors, il se construit une identité narrative qu’il développera dans l’écriture. Ces deux auteures dialoguent avec les diverses voix intertextuelles qui peuplent leur écriture. En mettant en jeu une multiplicité de voies ou voix, elles recréent une identité narrative plurivocale qui permet le passage de la mêmeté à l’ipséité (Ricœur).
Caesarean section audit in a tertiary hospital of North India using Robson’s classification
Authors: Gupta Ruchi 
Published: March 2019

Background: In view of upsurging Caesarean section (CS) rate worldwide WHO conducted two multicountry surveys to diagnose the driving determinants. In two WHO surveys increased overall CS rate was observed from 26.4% to 31.2% worldwide except Japan. Both WHO 2014 and FIGO 2016 recommend Robson ten- group classification for monitoring caesarean rate over time because of its clarity, tenacity, resilience and pliability. Our Aim is to classify women delivered in our Hospital as per Robson ten –group classification and access the factor driving caesarean rate in each group.Methods: This is a retrospective study 1671 caesarean section conducted in tertiary hospital over 6 months (July- December) 2018. All the delivering women were classified according to Robson ten-group classification and data was analyzed using Microsoft excel and SPSS 23 software.Results: During the study period there were 5917 deliveries. Of these 1671 deliveries were CS accounting for CS rate of 28.24% . The major contributor to CS rate were women in group 5 followed by primigravida’s in group 1 and 2. Increasing CS rate was observed in group 1 ,2, 3 and 5. Most common indication for caesarean section was fetal distress , failed induction , previous caesarean , breech and Antepartum hemorrhage.Conclusions: Increasing trend in CS rate is observed in group 1,2 ,3 and 5. In order to reduce CS rate among group 2 better patient selection is required for induction of labour based on Bishop score. In order to reduce CS rate in group 5 promotion of VBAC deliveries should be encouraged. By classifying women according to Robson group 10 classification helps in identification of women likely to deliver by caesarean and to identify effective strategies to optimize the CS rate.
Overcrowding and possible solutions for a busy gynecological emergency department: a hospital-based setting
Authors: Qazi Mahvish , Saqib Najmus , Gupta Sachin 
Published: March 2019

Background: The objective of this study is to determine the trends of patients presenting in Obstetrics and Gynecology emergency department and to identify possible solutions.Methods: This retrospective hospital record-based study was conducted at Government Medical College Jammu, Jammu and Kashmir, India from the department of Gynecology and Obstetrics and comprised data of all patients presenting to the emergency department between 1st January 2018 to 31st December 2018. Patients were assessed in terms of demographic features, presenting complaints, admission types (urgent, non-urgent), referral from other hospitals or coming from home. The total number of patients admitted and the number of patients sent home was also recorded.Results: A total of 1,46,366 patients were analyzed retrospectively. Out of which 63,004 (43.05%) were send home from the OPD while 83,362 (56.95%) presented to the emergency department. Of them, 49,383 (59.24%) were discharged straight away from the ED after emergency treatment and care while 339,79 (40.76%) were admitted. Out of 339,79 patients, 24,932 (73.37%) stayed in the emergency whereas 9047 (26.63%) admitted into different wards for elective procedures. Majority of the patients 26,098 (89.92%) came from home and 2927 patients (10.08%) were referred from other hospitals. Labour pains 7833 (31.42%) was the most common presentation. Trauma was the reason for admission in 112 (0.45%) patients out of 29025. 971 (3.89%) patients presented with gynecological problems. 4093 (14.10%) patients presented with non-urgent indications. Rest of all patients presented with indications which were categorized as urgent and were admitted. All data was analysed using SPSS version 20.Conclusions: To reduce the overcrowding in the emergency department and improve quality of obstetrics and gynecological services, Inpatients and Outpatient departments at primary and secondary care levels need to be strengthened. Patients with non-urgent problems should be provided adequate care at primary and secondary health care centers.
Comparison of Ketamine and Pentazocine with Fentanyl and Propofol combination for anaesthesia during laparoscopic tubal ligation
Authors: Nazir Ovais , Bhat Asif Hussain , Yatoo Hamid , Gupta Sanjeevni , Misra Rajesh 
Published: March 2019

Background: Laparoscopic tubal ligation have advantages of minimally invasive surgical technique, without risk of major haemorrhage, early postoperative ambulation and alimentation, making it suitable for ambulatory surgery. The choice of aneasthesia for laparoscopic ligation hence should consider the anaesthetic agents with a rapid onset of action and fast recovery time, with minimal problems for intraoperative control of haemodynamic, airway and pain relief as well as take consideration of the safety, quality, efficacy, and utilization of resources available to the given situation.Methods: A total of 100 patients aged from 18 to 45 years who were scheduled to undergo laparoscopic tubal ligation were divided into Group I- Ketamine plus pentazocine group (n=50), Group II- Propofol plus fentanyl group (n=50) and studied for the intraoperative parameters (hemodynamic and respiratory profile), recovery time, postoperative side effects and discharge time.Results: Intraoperatively MAP and HR were consistently higher in group I as compared to group II. Incidence of apnea and need for bag and mask ventilation was significantly more in Group II than in Group I as was the incidence of Bradycardia. Postoperative nausea and vomiting, psychomimetic effects were significantly more in Group I than in Group II. The time to reach modified PADSS ≥9 (discharge time) was significantly longer in group I (140.3±12.82 min than in group II 102.2±9.2 min), P<0.01.Conclusions: Combination of ketamine and pentazocine gives good anaesthetic conditions during procedure with less incidence of airway and haemodynamic complications intraoperatively but more incidence of postoperative side effects like nausea, vomiting, psycomimetic effects, and time to meet discharge criteria, compared to propofol plus fentanyl.