bluuebunny/crossref_metadata_2025 huggingface dataset:
How Experience Confirms the Gambler's Fallacy when Sample Size is Neglected
Authors: Miller Joshua Benjamin , Sanjurjo Adam
Published: October 2018

The Gambler's Fallacy is the mistaken belief that random sequences have a systematic tendency towards reversal, i.e. that streaks of similar outcomes are more likely to end than continue. Despite broad empirical support for gambler´s fallacy beliefs, there exists little formal explanation of why such beliefs persist. We present a simple model in which an individual formulates his beliefs about the probability of success given recent success via repeated exposure to random sequences. For each sequence he focuses on the proportion of success given recent success and then updates his beliefs, but (partially) neglects sample size. This results in probability beliefs which, in the limit, are smaller than the true (conditional) probability, i.e. gambler's fallacy beliefs. We discuss the model's novel testable predictions.
Quality of Teachers in STEM Learning at Secondary School
Authors: Rahayu Titik , Syafril Syafrimen , Pahrudin Agus , Satar Ibdal , Othman Kamisah Binti , Halim Lilia , Erlina Nova
Published: October 2018

The latest approach in the learning process of Science, Technology, Engineering and Mathematics (STEM) has become the most recent trend in this decade. STEM not only for processing and producing the talents with expertise in education but also acts as a catalyst to the economic growth and national development. However, there are still impending issues associated with the usage of STEM in secondary schools, which one of the main issues is related with the quality of teachers. Previous studies were used as a reference to discuss respective issues. Previous studies showed that (i) effective curriculum, (ii) improvement of teacher’s motivation and mentoring in the usage of STEM are the foundation for the enhancement of teacher’s quality in the teaching of STEM.
A Visible (Hot) Hand? Expert Players Bet on the Hot Hand and Win
Authors: Miller Joshua Benjamin , Sanjurjo Adam
Published: October 2018

Since its inception, the hot hand fallacy literature has tended to focus on whether the hot hand exists, rather than the fitness of hot hand beliefs. We provide the first evidence that people---here experienced practitioners---can profitably exploit their hot hand beliefs. In particular, using the data from the original hot hand field study we find that players' bets predict future outcomes. We use simulations to demonstrate how under-powered tests and misinterpreted effect sizes led the original study to the opposite conclusions
IMPLEMENTASI LOGIKA FUZZY DENGAN MENGGUNAKAN METODE MAMDANI UNTUK MENENTUKAN PENERIMAAN BEASISWA DARI YAYASAN RUMAH ZAKAT
Authors: jarti nanda
Published: October 2018

beasiswa adalah suatu bantuan pendidikan yang diberikan oleh suatu lembaga instansiataupun non instansi, yang diberikan kepada siswa yang berprestasi ataupun kurang mampuguna untuk mendukung proses belajar siswa tersebut. Rumah zakat adalah salah satulembaga yang memberikan bantuan sekolah atau beasiwa untuk para pelajar di kota Batam,untuk proses seleksinya, tidak ada cara khusus ataupun perhitungan matematis yangdigunakan Rumah zakat untuk proses seleksinya, sehingga memungkinkan beasiswa tersebuttidak tepat sasaran. logika fuzzy Mamdani merupakan logika kabur dengan menggunakanmetode Mamdani, yang fungsinya dapat di implementasikan dalam melakukan pengambilankeputusan, seperti menentukan seleksi penerima beasiswa, dengan diterapkannya logikafuzzy untuk proses seleksi penerima beasiswa, maka hasil yang didapat akan lebih tepatsasaran, karena proses yang dihasilkan berdasarkan perhitungan secara matematis.Kata kunci: Beaiswa, Rumah zakat, logika fuzzy, mamdani
Aplikasi Filter Pasif Rc Untuk Mereduksi Harmonik Pada Ac/Dc/Ac Konverter
Authors: Asnil
Published: October 2018

This paper presents the design and analysis of a low pass passive filter to reduce harmonics component at the ac side (input) of three-phase ac/dc/ac converter. The filter configuration consists of resistor and capasitor, that cut off the frequency above 150 Hz.
DIALEKTIKA RITUAL DAN HIBURAN DALAM KESENIAN BARONGAN DI KABUPATEN BLORA JAWA
Authors: Guntaris Endik
Published: October 2018

Penelitian ini bertujuan mengkaji kesenian Barongan (local wisdom) yang tengah mengalami masalah perbedaan kepentingan, yakni kepentingan ritual dan kepentingan hiburan. Barongan merupakan refleksi kreatifitas seni dan budaya masyarakat Blora yang memiliki sifat kerakyatan dan syarat makna. Di antara maknanya adalah kekuatan dahsyat yang disimbolkan dengan bentuk Singa dari topeng Barongan. Lokasi penelitian di empat desa kabupaten Blora Jawa Tengah Indonesia. Penelitian kualitatif ini menggunakan pendekatan performance studies dengan sub pendekatan etnokoreologi. Pengumpulan data dilakukan dengan teknik observasi, wawancara mendalam, studi dokumen, dan analisis isi. Hasil penelitian menunjukkan bahwa ada dialektika antara kepentingan ritual dan hiburan dalam pertunjukan Barongan. Kedua kepentingan tersebut saling bersaing, saling bersanding, dan saling mempengaruhi dalam hal penyajian maupun strategi menarik animo penontonnya. Selain itu, ada dua bentuk (model) penyajian Barongan yang berhubungan dengan fungsinya, yaitu bentuk arak-arakan dan dramatari.
POLA PEMBINAAN ISLAM DI PESANTREN (Studi Kasus di Pondok Pesantren Baitul Anshor Cimahi)
Authors: Permana Irfan Setia
Published: October 2018

Today amidst the ongoing community crisis in various joints of life. The fact that we can see at this time that the younger generation who became the hope of the nation is far from the figure of the generation of dreams. People's progress will be largely determined by the progress of youth generation. Boarding School is a place that facilitates teenagers in religious formation, morality and noble morals, both for those whose parents are well off, or whose parents are not well-off, or whose parents are busy with their work. Baitul Anshor Boarding School is an institution that has a program in the development of religious, morality and noble character, that is with aspects of coaching ruhiyyah, fikriyah coaching and coaching jasadiyyah done for 24 hours from start the child wakes up until the child sleeps again.In this study the focus of attention is the form of guidance patterns of students or students who are developed in educating students in Boarding School. Data in this research is obtained from primary data and secondary data. Primary data are respondents. In this study the respondents are students or students of Baitul Anshor Boarding School. The informants, namely leaders of institutions, caregivers, and community leaders around Baitul Anshor Boarding School. The research approach used in this research is by qualitative method. While the data collection techniques used are by interview, observation and documentation.The pattern of guidance in Baitul Anshor Boarding School in providing guidance to students or santrinya takes place effectively and efficiently. The coaching of students or students of Baitul Anshor Boarding School can provide a new color in the development of Islamic education through coaching in accordance with the teachings of Islam is pure and in accordance with the demands of the times. This shows that Islamic educational institutions have an active role and have a high awareness of the needs of the community for quality education.
Perancangan Sistem Informasi Kelengkapan Pengisian Formulir Informed Consent DI RS Al Islam Bandung
Authors: Yanuar Yudhi
Published: October 2018

This study aimed to determine medical action approval form completeness (informed consent) information system design using Microsoft Visual Studio 2010 usage in Rumah Sakit Al Islam Bandung. The research used qualitative method with descriptive approach. While data collection techniques used by direct observations, interviews and completed with a literate review that had a relationship to the subject matter. The development method used was Waterfall. From making this information system the writer used programming language Microsoft Visual Studio 2010 and storage of data using Microsoft Access 2007. From the results conducted there were some problems found, such as:lack in socialization of standard operating procedure for informed consent making, many informed consent forms are still not filled in completely, this is unfortunate given the importance of legal aspects contained in informed concent and, proses of analyzing for completeness informed consent form are still uses Microsoft Excel, so that analysis time becomes longer. The suggestions were given by: (1). Socializing the standard operating procedure of making an informed consent to the relevant officers;(2).Developinga new information system for the data processing analysis the completeness of informed consentfilling for producing reports more accurate and time efficiency in the analysis process.
Pre-print supplementary material
Authors: Jongsma Hannah , Turner Caitlin , Kirkbride James Bowes , Jones Peter B.
Published: October 2018

This is the supplementary material for the manuscript entitled : A systematic review and meta-analysis of the international incidence of psychotic disorders. DOI: https://doi.org/10.31234/osf.io/dehfv
Guiding Questions for Evaluating a Screener
Authors: Petscher Yaacov
Published: October 2018

The plethora of considerations when creating, evaluating, choosing, or using a screener for dyslexia can be overwhelming. This checklist is intended to provide initial guidance and questions to be thoughtful about pertaining to screener assessments. When reviewing a screener technical report, tool chart, or summary of the assessment, we have created a list of 15 questions related to a hierarchy of core considerations of screeners to help facilitate discussion amongst administrators, advocates, data teams, parents, and others invested in what screeners are used in schools for early screening.
The Origin of the Frog Totem in Guangxi
Authors: Xu Bohai
Published: October 2018

Maguai, which in Zhuang dialect means frogs, is considered the incarnations of gods by the Zhuang ethnic group. From the paper, you can speculate that Maguai God(Frog God) is actually Egyptian goddess Heqet in China.
Sexting, cyber-violence and sexually risk behaviour among college students
Authors: Kričkić Dea , Šincek Daniela , Babić Čike Ana
Published: October 2018

This research explores the relationship between sexting, committing and experiencing cyber-violence, and risk sexually behaviour among college students. A total of 202 college students filled out an adjusted version of the Sex and Tech Survey Questionnaire (STSQ), the Committing and Experiencing Cyber Violence Scale (CECVS) and the subscale on sexually risk behaviour from the Youth Self-reported Delinquency and Risk Behaviours Questionnaire (SRDP-2007). It has been found that a total of 60.89% of the participants have sent a sexually explicit text message and/or video content at least once, 60.33% have received such content, and 13.12% have forwarded or shown the received content to other people. Furthermore, 3.5% of the participants have experienced, and 2.01% have committed, cyber-violence. The majority of the participants have sent explicit content to their boyfriends/girlfriends. Most of the participants perceived sexting as a kind of joke, as a gift to their partner or as an answer to receiving sexually explicit content, while a minority of the participants mentioned negative motives for practicing sexting, such as peer or partner pressure. Almost all of the participants were aware of the danger sexting bore, but most of them still indulged in sexting, noting its positive outcomes, such as the excitement that followed it. Both committing/experiencing cyber-violence and sexually risk behaviour correlate positively and moderately with sexting. Positive and moderate correlations were found between committing and experiencing cyber-violence. Also, positive but weak correlations were found between practicing/experiencing cyber-violence and sexually risk behaviour in real life. Predicting sexting by experiencing and committing cyber violence and sexually risk behaviour has shown that only sexually risk behaviour is significant predictor. Such behaviour likely serves as a mediator for the relationship between committing cyber-violence and sexting, yet it explains only 8.2% of sexting variance, while the model as a whole explains almost 20%. The results indicate that different forms of risk behaviour are correlated, and that sexting is perceived not only as a risk behaviour, but as a behaviour that can be used to facilitate committed relationships in young adulthood.
Potrebe žrtava i zadovoljstvo pruženom podrškom od strane odjela za podršku žrtvama i svjedocima
Authors: Bajto Martina , Hamer Vidmar Nikica
Published: October 2018

Odjeli za podršku žrtvama i svjedocima osnovani pri županijskim sudovima pružaju emocionalnu i praktičnu podršku, informacije o pravima i tehničke informacije, te upućuju žrtve, svjedoke, oštećenike i osobe u njihovoj pratnji na druge specijalizirane institucije i organizacije ovisno o njihovim potrebama. Ciljevi istraživanja bili su istražiti način informiranja žrtava i svjedoka o dostupnoj podršci, razloge i motive za traženjem podrške od strane odjela za podršku žrtvama i svjedocima, istražiti kako se žrtve i svjedoci osjećaju prije, tijekom i nakon svjedočenja, dobiti uvid u njihova iskustva svjedočenja na sudu, istražiti njihove potrebe za podrškom i korisnost pružene podrške koju su dobili od strane odjela za podršku žrtvama i svjedocima. Istraživanje je provedeno na prigodnom uzorku (N = 101) žrtava, svjedoka, oštećenika i osoba u pratnji koji su primili podršku od strane odjela za podršku žrtvama i svjedocima. Anketni upitnik, konstruiran za potrebe ovog istraživanja, ispitanici su popunjavali nakon završetka rasprave. Rezultati su pokazali da su žrtve, svjedoci i oštećenici o postojanju odjela za podršku žrtvama i svjedocima najčešće bili informirani putem poziva za sud, međutim većina ih je kontakt sa službenicima odjela ostvarila tek na sudu, kada su im službenici odjela i volonteri sami pristupili. Nakon zaprimanja poziva za sud i prije svjedočenja iskazivali su o osjećajima uznemirenosti, nervoze, straha i zbunjenosti te su naveli da su se za vrijeme svjedo-čenja osjećali uznemireno, kao da ponovno proživljavaju događaj o kojem svjedoče i da jedva čekaju da sve završi. Nakon svjedočenja najčešće su iskazivali o osjećaju olakšanja. Navode da su im izuzetno pomogli sljedeći oblici podrške pruženi od strane odjela za podršku žrtvama i svjedocima: informacije, čekanje na svjedočenje odvojeno od drugih, emocionalna podrška te prisustvo službenika odjela / volontera s njima u sudnici tijekom ispitivanja. Iskazali su da su jako zadovoljni pruženom podrškom od strane odjela i da bi obraćanje odjelu preporučili i drugim osobama koji se nađu u sličnoj situaciji.
Speculative Scores | Moving Together, 22 Ways
Authors: Chambers Justine A. , Gerecke Alana
Published: October 2018

In Moving Together, 22 Ways, Justine A. Chambers and Alana Gerecke offer twenty-two choreographies of the everyday, each an invitation for other bodies to take up and explore. These choreographies approach assemblies in motion, itinerant assemblies that spread and gather before they have time to settle. The assemblies these scores propose are speculative choreographies worked through the flesh. They register relationships to the built environment and to the bodies that populate those environments as fleeting and kinaesthetic, embodied knowledge on the move. Drawing from their respective practices and fixations, Chambers and Gerecke take up the choreographic invitations built into the architecture of specific places: Canadian sidewalks, transit platforms, intersections, elevators, and public squares. They insist: if objects choreograph us, and if the city functions as an architecture of assembly, then it is worth thinking seriously—and kinaesthetically—about how the objects that constitute our public spaces move us and shape our interactions. The scores engage with unspoken movement expectations that structure these places by offering subtle shifts to the formal arrangements of assembly each site invites. In other words, these twenty-two scores reframe and rework the dances that are already there, the social choreographies found all around.
“A Multi-modal and Durational Praxis of Decolonization”: Performance Studies in Canada
Authors: Harvie Jen
Published: October 2018

This review of Performance Studies in Canada edited by Laura Levin and Marlis Schweitzer argues that its most important contributions are the arguments it makes for paying attention to Indigeneity and to decolonizing practices, and the many, varied decolonizing practices it demonstrates. The review also admires the collection’s commitments to exploring diverse ways of knowing, from the sensory through embodiment and textuality. Finally, the review appreciates the book’s consistent and rigorous attention to grounding research and arguments in detailed local specificity. All three of these emphases—on Indigeneity, diverse ways of knowing, and local knowledges—demonstrate the collection’s through-running commitment to respect and preserve differences while facilitating communication across them.
Mitarbeiterorientiertes Produktionsmanagement
Authors: Teubner Severin , Vernim Susanne , Dollinger Christiane , Reinhart Gunther
Published: October 2018

Kurzfassung

Aktuelle gesellschaftliche und technologische Entwicklungen, denen im Rahmen des Zukunftsprojekts Industrie 4.0 große Aufmerksamkeit zukommt, bewirken starke Veränderungen in Produktionssystemen. Davon ist insbesondere die Ressource Mensch betroffen, welche unter Berücksichtigung von Flexibilitäts- und Produktivitätssteigerung in die zunehmend digitalisierte und vernetzte Produktionsumgebung integriert werden muss. In diesem Beitrag werden drei Ansätze vorgestellt, die diese Thematik aus Sicht des Menschen, der Technik sowie der Organisation adressieren.
Mehrwert Cyber-physischer Produktionssysteme durch domänenübergreifende Modellierung
Authors: Hellmich Arvid , Mater Sarah , Glänzel Janine , Weber Juliane , Ihlenfeldt Steffen
Published: October 2018

Kurzfassung

Im Rahmen von Industrie 4.0 spielt die Wandlung von Produktions-systemen hin zu Cyber-physischen Produktionssysteme eine tragende Rolle. Nach einer Einordnung des Themas beleuchtet der Beitrag einen konkreten Anwendungsfall, die Temperierung von Werkzeugmaschinen mithilfe von CPS-Komponenten, genauer. Als wesentliche Aspekte werden die Modellierungsschritte (FEM, CFD, Systemmodell) vorgestellt sowie erste Aussagen hinsichtlich der Gestaltung und Komponentenstruktur getroffen.
Standortübergreifendes Echtzeit-Assettracking
Authors: Pallasch Christoph , Hoffmann Nicolai , Storms Simon
Published: October 2018

Kurzfassung

Produkt- und Prozessinformationen stellen entlang der Wertschöpfungskette eines Produkts einen entscheidenden Faktor dar, wenn es um die Wahrung von Termintreue, Qualität, Maschinenauslastung oder Kompensation von Ausfällen geht. Ein Tracking von Produkten innerhalb und außerhalb über Standortgrenzen hinweg ermöglicht ein Reagieren auf Verzögerungen, eine Verbesserung der Auftragsplanung und schafft eine höhere Abarbeitungstransparenz. Ultrabreitband-Funktechnologie sowie GPS sind hierbei geeignete Basistechnologien zur Realisierung von Trackingvorgängen innerhalb und außerhalb von Fabrikhallen.
Agiles Sprintlernen
Authors: Korge Gabriele , Jungclaus Joana , Bauer Agnes
Published: October 2018

Kurzfassung

Ausgelöst durch die drei großen Trends demografischer Wandel, Digitalisierung und zunehmende Unberechenbarkeit im Wirtschaftshandeln ändern sich die Arbeitsbedingungen nahezu aller Beschäftigten grundlegend. Basierend auf den Weiterbildungserfahrungen der 1990er-Jahre wird dargelegt, inwiefern hier ein neu zu bewertender Lernbedarf entsteht. Die Lernform des agilen Sprintlernens, die im Forschungsvorhaben „in MEDIAS res“ entwickelt und erprobt wird, wird als eine mögliche Antwort darauf vorgestellt.
Proektnoe obuchenie kak sposob motivirovat' na professiiu (iz opyta podgotovki zhurnalistov)
Authors: Chereshneva Iuliia Evgenevna , Kokhanova Liudmila Aleksandrovna , Golovko Sergei Borielevich
Published: October 2018

Theoretical foundations and principles of project training for students in the specialty «Journalism», as a way to motivate a journalist for the profession is studied by the authors. The concept of project training for journalists is based on the idea that training should be motivating, especially when it comes to specialized discipline. The result of such training should be considered the skills and abilities generated by students to use the new things that they received in the course of their studies. The authors summarizing their own experience and the practice of colleagues, determine the main characteristics of this method and the principles, following which allows to obtain the desired results. The definition of «project training» is given as an organization of the educational process, when the study of a course or the entire cycle of courses in a specialty is aimed at the final result obtained in the process of setting the task and its implementation. Mechanisms to achieve this goal are training, workshops, role-playing games such as focus groups. The principles of activity, research (creative) position, objectivity (awareness) of behavior and partner (subject – subject) communication are considered in detail.
PIPELINE CATHODE PROTECTION ANALYSIS FOR IDENTIFICATION OF CORROSION AND STRESS-CORROSION FORMATION
Authors: Khizhnyakov V. I. , Negodin A. V. , Kalinichenko V. S.
Published: October 2018

Based on long-term corrosion tests of 17GS steel samples of the pipeline installed in various soils of the taiga-marsh region in the central part of Western Siberia, it is shown that in the absence of cathode protection, the corrosion rate ranges from 0.11 to 0.06 mm per year, i.e. 0.085 mm per year averagely. The residual corrosion rate of samples under the cathode protection ranges from 0.01 to 0.004 mm per year or the 0.007 mm per year averagely, when the air limiting current density exceeds the oxygen limiting current density by a factor of 3-7. A further increase in the current of cathode protection leads to the intensive hydrogen release. The actual measured values of the cathode protection current density at its potentials (with the resistive component) from –1.79 V to 3.5 V exceed the oxygen limiting current density by 30–50 or more times. It is experimentally shown that at a cathode current density  exceeding the density of oxygen limiting current by 54.43 times, the acceleration of hydrogen pressure reaches 0.007 MPa per day in a closed cavity at a 20 mm vacuum pressure. It is shown that the acceleration of hydrogen pressure in micro- and macro-cavities of the near-surface layer of the pipeline is not determinant. The advantageous embrittlement of cathode hydrogen is the reduction of cohesive strength of the near-surface layer of the pipe wall.
PROJECT ACTIVITIES OF THE MUNICIPAL UNION OF NOVOSIBIRSK HOUSING COOPERATIVE IN THE 1920S
Authors: Khitsenko E. V.
Published: October 2018

The article reveals the main typological, space-planning, structural, stylistic and townplanning features of residential buildings of Novosibirsk designed by the Municipal Union of Housing Cooperative in the 1920s. The paper considers governmental measures conditioned by the housing crisis and requirements for reducing the housing construction costs. Fire-fighting, sanitary-hygienic and town-planning standards developed by the local authorities are explored. A detailed analysis is given to project documentation (drawings of plans, sections and facades) issued by the the Municipal Union of Housing Cooperative in the period under study.
Facial Esthetic Parameters: A Descriptive Analysis of Facial Class and Smile in Young Subjects
Authors: Figueroa Julián , Sanza Carolina , Suazo Nelson , Olate Sergio
Published: October 2018

Facial esthetics have an important function in psycho-social relations and is a response to anatomical and muscular dynamics; differences in facial skull position can modify a subject ́s facial esthetic and smile. The aim of this research is to know smile esthetics and the presence of facial modifications. We studied standardized photographs of patients between 18 and 37 years old and determined soft tissue relation to identify the facial class in lateral images defined as class I, II or III; we analyzed their relation to dental/ gingival presentation in reference to a high, normal or low smile. The data was analyzed in a descriptive technique. The results show that the low smile has a minor percentage and a normal smile was present in 47.62% of class I subjects, 34.29% of class II subjects and 75% of class III patients; high smile was present in 54.29% of the class II subjects; the buccal corridors, as an esthetic element follows the normal parameters in a low percentage and the greater or lesser size of the buccal corridors was observed in 71.43% of class I subjects, 74.29% of class II subjects and 75% of the class III subjects. It was concluded that mayor variations exist in the smile of subjects with different facial class and that the buccal corridors was excessive in the majority of subjects, thereby demonstrating the importance of analyzing this concept of esthetics in our population.
Prevalence of Factor V Leiden and Prothrombin Mutation G20210A in Patients with a History of Thrombotic Phenomena in Temuco, Araucanía Region
Authors: Muñoz Mariela , Vásquez Claudio , Inostroza Jaime
Published: October 2018

Thrombotic phenomena are multifactorial phenomena with both acquired and inherited factors. Factor V Leiden (FVL) and G20210A mutation of prothrombin (FIIG20210A) are the most studied inherited factors, with a prevalence that varies by population and race, high in Europe and almost nil in Asian countries. Information concerning the prevalence of these mutations in Chile is scarce. The aim of this study was to determine the prevalence of FVL and FII G20210A mutation in patients with a history of thrombotic events in the city of Temuco, Araucanía region. Genetic analysis for FVL Thrombophilia and FIIG20210A mutation was performed from January 2012 to December 2013. Three hundred thirty-three screenings by PCR in real time and the genotype of each mutation were determined and analyzed by Melting curve. We found an average prevalence of 2.28% forthe FVL, whereas FIIG20210A mutation was 6.49%. Nomutations were found in homozygous state. Both mutations are present in our population, it is therefore important to evaluate the risk associated with their presence in patients with a history of thrombotic events. In our specific population FII G20210A mutation is highly prevalent, thus genetic studies should be realized or requested.
Modeling the Body of the Embryo during the Somitic Period
Authors: Rojas Mariana , Smok Carolina
Published: October 2018

The somite or phylotypic period is similar in many vertebrate species from fish to man. Somites consist of thickening of the mesoderm, they simultaneously form in pairs, one on each side of the notochord. In the human embryo formation of somites is initiated on day 20, resulting in a total of three pairs of somites per day with a total of 44±2 pairs of somites. Somite formation occurs where the FGF -8 is at a low threshold. Positional somites identity is specified by the combined expression of the Hox gene complex. Somites give rise to axial skeleton (vertebrae and ribs), all skeletal muscles including members of the body wall and also most of the dermis. The WNT protein induces muscle precursor cells from the dorso medial portion of the somite and MIF5 gene expression. The somite dermatome dermis becomes action neurotrofina3 (NT -3) secreted by the dorsal neural tube. Sonic hedgehog protein produced by the notochord and neural tube induces sclerotome formation, from somite ventrally and the expression of PAX 1 which in turn, controls the formation of chondrogenesis and vertebrae.
Implantation of Autologous Stem Cells Derived from Adipose Tissue in Rat Bone Fractures
Authors: Smok Carolina , Meruane Manuel , Rojas Mariana
Published: October 2018

Stem cells derived from adipose tissue (ASCs) correspond to a major advance with respect to the bone regenerative medicine, as they have the ability for self-renewal, differentiation and paracrine stimulation to various types of tissues including bone and cartilage. The hypothesis of this study considers that fractures treated with ASCs, time decreases bone regeneration and vascularization increases, aiming to histologically evaluate bone regeneration and vascularization in these fractures. To accomplish this, 24 young male Sprague Dawley rats were used. The specimens were divided into two groups: Group A (treated) and group B (control). In both groups, the rats were euthanized at 11 and 21 days post-fracture. Statistically significant difference was observed in the number of newly formed trabeculae and vascular density in the treated group compared to control group concluded that rats treated with ASCs have a higher rate and better angiogenic bone regeneration, especially given the ability to synthesize components of the extracellular matrix of these cell, and the production of angiogenic growth factors.
In “J” Laparotomy. An Alternative Pathway for High Abdominal Surgery
Authors: Manterola Carlos
Published: October 2018

Pathways for high abdominal surgery (HAS) are vertical, oblique and transverse laparotomies. A variety of these is known as “in J laparotomy” (JL). The aim of this study is to analyze the results obtained with JL in HAS, in terms of local postoperative complications (LPC) respect of vertical laparotomies (VL). Historical cohort study. The sample consisted of patients operated for HAS consecutively between 1996 and 2012 (17 years), at the Hospital Clínico de la Universidad Mayor. The outcome variable was development of LPC. Other variables of interest were diagnosed at admission, surgery performed, hospital stay, surgical time and type of wound. The cohort of patients undergoing JL was compared with other patients with VL. The patients had a minimum follow-up of 12 months. Descriptive and analytical statistics (t-test, Chi2 and exact of Fisher) were used. LPC incidence was calculated in both groups. In addition, RR, RAR and NNT were also calculated. The study population was 220 patients, 120 (54.5%) operated with JL and 100 (45.5%) with VL; with a mean age of 45.5 years; 130 (59.1%) women. Diagnoses at intake, type of surgical wound, surgical techniques, surgical time and hospital stay were similar in the study groups. We found no significant differences between groups in the comparative study and incidence of evisceration (p= 0.8012) and hernia (p= 0.7895). However, significant differences were observed in favor of JL regarding seroma (p= 0.0312) and wound infection (p= 0.013). In conclusion, JL is safe and comparable with respect to VL in terms of LPC in patients who underwent HAS.
Pharmacological and Surgical Treatment for Trigeminal Neuralgia a Review of the Literature
Authors: Bernaola Edison , Cava Carlos , Robello José , Santos Atilio , Rodríguez Jaime
Published: October 2018

Trigeminal neuralgia is the most common orofacial pain, with incidence levels that increase every year. Characterized by paroxysmal attacks of pain, brief, lancinating, stabbing, is considered one of the most painful conditions affecting patients. Drug therapy has been the gold standard for the management and control of this neuropathy, on the contrary, recent studies find wide drug resistance with history of neuralgia for many years, causing recurrence of the picture. That is why there is a need to establish a proper surgical planning, among which stands vascular decompression and percutaneous micro harmful methods such as retrogasserianas rhizotomies, chemical methods, such as injection of alcohol or glycerol in the oval hole, mental foramen, as an alternative to medical-pharmacological treatment, however, not all procedures reviewed in the literature indicate a continued success rate and further, the various adverse effects involving the implementation of each treatment should be considered.
Weak Areas of the Pharyngoesophageal Narrowing (Pharyngoesophageal Union): Anatomic Description and Implication on the Development of Pharyngoesophageal Diverticulum
Authors: Lo Tártaro Maximiliano , Ottone Nicolás , Medan Carlos , Blasi Esteban , Bertone Vicente
Published: October 2018

In the pharyngoesophageal narrowing ("pharyngoesophageal junction") there is a difference between the smooth and striated pharynx and esophagus, identifying points of weakness where pharyngoesophageal diverticula originate. In 1874 Albert von Zenker along with Ziemssen presented the first scientific publication on these diverticula. The aim of this work is to perform a surgical anatomical description and demonstration of the weak areas of the pharyngoesophageal narrowing ("pharyngo-esophageal junction") and its implication in the "Zenker diverticulum." We dissected Caucasian adult cadavers, in 5% formaldehyde and researched the pharyngoesophageal region with a review of the literature. In one case a markedly weak area was located presenting a true hernial sac. From the anatomo-surgical study of pharyngoesophageal narrowing ("pharyngeal esophageal junction") we observed the "weak pharyngoesophageal areas" in the pharynx, represented by a pharyngooesophageal diamond. It is crossed transversely by cricopharyngeal portion of the inferior constrictor muscle of the pharynx, and divides into two triangles, an upper, the "Killian Triangle" and a lower, "or Lannier Laimer Triangle Hackermann". Zenker's diverticulum originates from the "Killian Triangle" area of major weakness of the pharyngoesophageal narrowing ("pharyngoesophageal junction"). For its part, the lower triangle, "Laimer Triangle or Lannier Hackermann" where diverticula is rarely formed, because the space is occupied by a layer of circular fibers. The "Zenker diverticulum" represents 60-65% of all esophageal diverticula, and treatment is exclusively surgical. In order to understand and adequately treat this disease, specific knowledge of the anatomy of the area is necessary.
Clarification of Terminologia Embryologica: Gartner Duct
Authors: Roa Ignacio , Del Sol Mariano
Published: October 2018

The use of eponyms is still a practice used among clinical, despite the efforts of the morphological community uprooting of medical language. The reason of this study is to make a clarification regarding Terminology Embryologica Gartner duct, mesonephric duct derived structure present in women and gynecobstetric great interest because of their potential pathological complications. We propose amendments with respect to derivatives mesonephric duct and its name.
Intrapelvic Migration of Kirschner Wire in Total Hip Arthroplasty with Bone Graft
Authors: Cerda Álvaro , Montoya Víctor , Matus Nelson , Pastor Pedro
Published: October 2018

Hip arthroplasty are routine surgical procedures that requires substantial preoperative planning due to the use of all types of implants and orthopedic pins. In this case, the Kirschner wires allow the bone implant fixation to the acetabulum. However, various circumstances may cause migration of the wire placement instead to a nearby anatomical region and may lead to severe and fatal consequences. In this paper a case of migration of the Kirschner wire inside the pelvis occurs after a total hip replacement in a patient diagnosed with bilateral congenital hip dysplasia. The knowledge that the surgeon must possess to manipulate and place this kind of needles is of importance to carry out a suitable and safe surgical procedure, allowing the patient to obtain a refund of the joint function.
Using Piezoelectric System in Oral and Maxillofacial Surgery
Authors: De Azevedo Eduardo , Costa Davani , Przysiezny Paulo , Kluppel Leandro
Published: October 2018

Motors and handpieces with the piezoelectric system have recently been used in several surgeries, following the current minimally invasive trend surgery. The system consists of crystals or ceramics undergoing deformation when exposed to electrical current, resulting in an oscillating movement with ultrasound frequency. In the Oral and Maxillofacial Surgery field activity, the piezosurgery may be used in maxillary and mandibular osteotomies in the orthognathic surgery, alveolar corticotomies, cysts tumors, facial trauma surgery, among others. This study aims to present a literary review on the piezoelectric system, which allows discussion to their use and effectiveness in oral surgery procedures.
Sperm Transport Through the Female Reproductive Tract
Authors: Vigil Pilar , Valdés-Undurraga Ismael , Del Río Juan , Cortés Manuel
Published: October 2018

Mammalian spermatozoa are highly complex specialized cells that survive a long and fascinating journey from the site of insemination to the upper third of the oviduct, where fertilization occurs. During this journey, these cells have to go through different microenvironments, which provide appropriate conditions for the occurrence of sperm capacitation and acrosome reaction (AR) in the time and place needed. These events need to occur in an extremely synchronized sequence in order to assure that fertilization takes place. The objective of this review article is to describe and analyze the various changes that spermatozoa will experience during their journey through the female genital tract and how they are influenced by the epithelium and secretions present in the cervix, endometrium and oviduct. These microenvironments will prevent the AR from occurring ahead of time as in the case of estrogenic cervical mucus or will stimulate its occurrence as in the case of progesterone, present during ovulation in oviductal fluid. In all cases the female reproductive tract will supply the conditions needed to guarantee survival, capacitation, AR and migration of spermatozoa for subsequent fusion with the oocyte. These microenvironments contain various hormones, neurotransmitters and other metabolites for which spermatozoa have specific receptors through which these substances can modulate their fertilizing potential. The study and understanding of the physiological conditions needed for gamete membrane fusion to occur is an important aspect to be considered both in basic and applied research in reproductive biology.
Importance of Testosterone on Adaptation at High Altitude
Authors: Gonzales Gustavo
Published: October 2018

Adaptation or natural acclimatization results from the interaction between genetic variations and acclimatization resulting in individuals with ability to live and reproduce without problems at high altitudes. Testosterone is a hormone that increases erythropoiesis and inhibits ventilation. It could therefore, be associated to the adaptation to high altitudes. Excessive erythrocytosis, which in turn will develop chronic mountain sickness is caused by low arterial oxygen saturation and ventilatory inefficiency and blunted ventilatory response to hypoxia. Testosterone is elevated in natives at high altitude with excessive erythrocytosis (>21 g /dl hemoglobin in men and >19 g/dl in women). Natives from the Peruvian central Andes with chronic mountain sickness express gene SENP1 that enhances the activity of the androgen receptor. Results of the current investigations suggest that increase in serum testosterone and hemoglobin is not adequate for adaptation to high altitude.
Advanced Gastric Cancer. Results Observed in a Private Regional Health Center
Authors: Manterola Carlos
Published: October 2018

Gastric cancer (GC) is the fourth of oncological diseases in women and the first men. For advanced GC (AGC), surgery remains the treatment of choice, which involves performing gastrectomies and D2 lymphadenectomy. The aim of this study is to determine postoperative morbidity (POM), mortality, survival (SV) and recurrence in patients resected by AGC. Retrospective case series of patients with AGC undergoing gastrectomies and LD2, consecutively at the Clínica Mayor in Temuco, between the years 2008 and 2014. The outcome variable was SV. Other variables of interest were: POM, mortality and recurrence. Patients were followed clinically. Descriptive statistics were used, with measures of central tendency and dispersion. Twenty- two patients (68.2 % male) were operated, with a median age of 61 years. The most frequent location was subcardial (45.5 %); the most common type of resection was total gastrectomy (54.5 %). The medium surgical time, resection of lymph nodes, and hospital stay were 155 min, 24 and 6 days respectively. POM was 18.2 %. With a median follow up of 22.5 months, a global actuarial SV was verified to 5 years 37 %, and recurrence of 36.4 %. The results achieved, in terms of POM, mortality and SV series are comparable to national and international centers.
Radicular Cyst: Filling after Enucleation with Demineralized Lyophilized Bone
Authors: Pillard Alex , Fuentes Emilio
Published: October 2018

The radicular cyst is the most common injury in the jawbone, and the lateral incisor is the most affected tooth. The surgical technique allows a wide range of excision procedures to solve the eradication of injury, from the preservation of post-surgical blood clot to novel regenerative techniques. This case shows the result of the use of lyophilized human bone and resorbable membrane, after resection of radicular cyst as successful procedure.
Update on Histological Evidence of Tissue Formed by Guided Pulp Tissue Regeneration
Authors: Gómez Felipe
Published: October 2018

The goal of regenerative endodontics is to reinstate normal pulp function in traumatized, necrotic and infected teeth that would result in reestablishment of their functions, but still fail to re-establish real pulp tissue and give unpredictable results. The aim of this review was to compile and synthesize available information on the histological evidence of tissue pulp-dentinal complex formed through guided tissue regeneration. A web-based research on MEDLINE was done using filter terms Review, published in the last 10 years and Dental journals. Keywords used for research were “Pulp", "Dentin", "Regeneratión", "Tissue” and "Histologic". The search yielded about 140 articles; the interest were selected and downloaded in full text. The most encouraging studies regarding guided tissue regeneration have been described in case reports of immature teeth diagnosed with irreversible pulpitis in which the histology odontoblasts type cells were observed. However, there are no studies with long-term follow up on this type of therapy. Some treatment protocols might result in undesired and unpredictable outcomes. Efforts are required to improve and update existing regenerative endodontic strategies to make it an effective, safe, and biological mode to save teeth.
Analisis Pengaruh Kualitas Website , Kepercayaan, Promosi Dan Harga Terhadap Kepuasan Pelanggan Tokopedia
Authors: Indriyani Furi , Helling Lydia Salvina
Published: October 2018

The purpose of this research is to analyze the influence of website quality, trust, promotion and price towards customer’s satisfaction at Tokopedia.com partially and simultaneously. This research used quantitative research and the feature of this research was descriptive. The sample of this research was 100 respondents, with purposive sampling as the sampling technique. The research data was obtained by distributing questionnaires to 100 Respondents. The analysis method used in the research was multiple linear regressions. The result shows that all of independent variables partially and simultaneously have an influence toward customer’s satisfaction to buy at Tokopedia. Hypothesis testing using T-test shows that all of independent variables proven positively and significantly influence to the dependent variable. Hypothesis F-test shows that website quality, trust, promotion and price have significant influence towards customer’s satisfaction at Tokopedia simultaneously.
Parallelizing random-walk based model checking
Authors: Bui Thang Hoai
Published: October 2018

In model checking, a formal methods technique to verify a system with some desired properties, the guidance techniques have been employed a long time ago in driving the verification into area of `error` in the state space. Another technique is to choose the next state to be explored in a walk randomly to avoid the `wrong` guidance. When the latter is a nonexhaustive technique in the sense that only a manageable number of walks are carried out before the search is terminated, it does scale well. In enhancing the technique to use recently powerful parallel/multi-core systems, research on parallelizing the algorithm shall be carried out. In this work, we propose a method that parallelizes the random-walk algorithm. It also increases the completeness of the non-exhaustive algorithm. The experimentation has shown the great improvement of the proposed algorithm compares to the original once.
Effects of auxin on the initiation and proliferation of Catharanthus roseus (L.) G. Don adventitious roots
Authors: Truong Nhu Quynh , Vo Phuc Thanh , Le Tien Thi Thuy
Published: October 2018

The influence of exogenous auxins such as IBA and NAA on the initation and proliferation of Catharanthus roseus (L.) G. Don adventitious roots was investigated. The results showed that adventitious roots were successfully established from cotyledons on ½ MS medium supplemented with IBA 0,7 mg/L and from leaves of in vitro shoots with IBA 0,7 mg/L or NAA 0,5 mg/L. The reduction of auxin concentration was required for root proliferation. The growth of adventitious roots cultured in shake flasks was better with IBA 0,3 mg/L or NAA 0,1 mg/L, while higher auxin concentrations led to significant development of callus. Biomass after 28 days of proliferation was proved of ajmalicine accumulation.
GENERALIZED ATOMIC WAVELETS
Authors: Brysina Iryna Victorivna , Makarichev Victor Olexandrovych
Published: October 2018

The problem of big data sets processing is considered. Efficiency of algorithms depends mainly on the appropriate mathematical tools. Now there exists a wide variety of different constructive tools for information analysis. Atomic functions are one of them. Theory of atomic functions was developed by V. A. Rvachev and members of his scientific school. A number of results, which prove that application of atomic functions is reasonable, were obtained. In particular, atomic functions are infinitely differentiable. This property is quite useful for smooth data processing (for example, color photos). Also, these functions have a local support, which allows to decrease complexity of numerical algorithms. Besides, it was shown that spaces of atomic functions have good approximation properties, which can reduce the error of computations. Hence, application of atomic functions is perspective. There are different ways to use atomic functions and their generalizations in practice. One such approach is a construction and application of wavelet-like structures. In this paper, generalized atomic wavelets are constructed using generalized Fup-functions and formulas for their evaluation are obtained. Also, the main properties of generalized atomic wavelets are presented. In addition, it is shown that these wavelets are smooth functions with a local support and have good approximation properties. Furthermore, the set of generalized atomic wavelets is a wide class of functions with flexible parameters that can be chosen according to specific needs. This means that the constructive analysis tool, which is introduced in this paper, gives researches and developers of algorithms flexible possibilities of adapting to the specifics of various problems. In addition, the problem of representation of data using generalized atomic wavelets is considered. Generalized atomic wavelets expansion of data is introduced. Such an expansion is a sum of trend or principal value function and several functions that describe the corresponding frequencies. The remainder term, which is an error of approximation of data by generalized atomic wavelets, is small. To estimate its value the inequalities from the previous papers of V. A. Rvachev, V. O. Makarichev and I. V. Brysina can be used