bluuebunny/crossref_metadata_2025 huggingface dataset:
Nested Miller Compensation Based Op-Amp Design for Piezoelectric Actuators
Authors: GOKCEN Dincer , ÇELİK Mehmet Akif , AYDOS Fatih Emre
Published: May 2020

This study introduces the design of a practical
three-stage operational amplifier (op-amp) using nested Miller compensation,
particularly for piezoelectric actuators. Driving a piezoelectric actuator
represents a challenge in amplifier design due to its large capacitive nature.
A stable piezo driver needs to be free of oscillations and phase lag. Direct
feedback compensation using a conventional Miller capacitor is an effective
method as long as the capacitance of the load is considerably close to the
value of the Miller capacitor. However, using a large capacitor causes a
decrease in the slew rate and gain bandwidth. To avoid this, our design focused
on the utilization of nested Miller compensation technique. A prototype of the
design working at 100V peak to peak voltage (Vpp) is implemented
using commercial off-the-shelf (COTS) components. The measurements show the
successful driving capability and step-response of the op-amp design. In the
design, Widlar current source is also utilized for thermal stability and short
circuit protection. According to simulation results, the proposed op-amp has a
slew rate of 0.5 V/μs, an open loop gain of 90dB with 3MHz Gain Bandwidth
Product (GBP) and phase margin of 77°, and a common mode rejection ratio (CMRR)
of 62dB.
On topicality of the philosophical thought of José Ortega y Gasset
Authors: Sastre Gerardo
Published: May 2020

Celem artykułu jest obrona aktualności myśli Ortegi dla współczesnej myśli filozoficznej. Na początku zostaje wyjaśnione to, co dla Ortegi stanowi centralny moment współczesnego świata: konstrukcja własnej tożsamości na podstawie indywidualnych predyspozycji. Według Ortegi, jest to najbardziej istotny aspekt kultury europejskiej, którego należy bronić za wszelką cenę. Jeśli tę ideę przełożyć na teorię wiedzy, jako rezultat otrzymuje się perspektywizm, który stanowi legitymizację dla liberalnej demokracji.
O nieistnieniu i normatywności wartości
Authors: Niemczuk Andrzej
Published: May 2020

Celem artykułu jest uzasadnienie dwóch twierdzeń: 1) że wartości nie należą do zakresu pojęcia bytu; 2) iż są dla podmiotu obowiązujące, pomimo że nie mają obiektywnego istnienia. Pierwszy fragment artykułu zawiera krytykę ontologii wartości. We fragmentach następnych autor przedstawia argumentację za następującymi tezami pozytywnymi: 1) obiekty wartościowe to obiekty uczuć słusznych; 2) kryterium słuszności uczuć jest, stwierdzana przez samowiedzę i rozum, niesprzeczność ich treści ze szczęściem podmiotu; 3) treść szczęścia, afirmowana przez wolną decyzję (pradecyzję), jest treścią pierwszej aksjologicznej przesłanki w rozumowaniach praktycznych; 4) źródłem normatywności wartości jest ludzkie pragnienie bycia podmiotem, które obejmuje afirmację własnej wolności i racjonalności. Proponowane w artykule stanowisko aksjologiczne sytuuje się pomiędzy dwiema krytykowanymi skrajnościami: pomiędzy obiektywistyczną ontologią wartości i subiektywistycznym emotywizmem.
Słaba płeć? O nauczycielkach domowych w Królestwie Polskim w XIX i początkach XX wieku
Authors: Hajkowska Monika
Published: May 2020

Rozwój ruchu emancypacyjnego w XIX wieku przyczynił się do podejmowania pracy przez przedstawicielki płci pięknej. Posiadanie męża i rodziny nie zaspokajało ich potrzeb i ambicji. Redakcje czasopism kobiecych wychodziły naprzeciw oczekiwaniom kobiet, informując o potencjalnych zawodach, w których mogłyby się realizować. Praca w zawodzie nauczycielki domowej była uznawana za atrakcyjną. Jednak niewiele kobiet zdawało sobie sprawę, że jest to zawód trudny, wymagający poświęcenia. W walce o posadę rywalizowały nie tylko z kobietami, ale również z mężczyznami. Musiały zjednać sobie pracodawców i ich rodziny, zaskarbić względy uczniów. Nierzadko z uwagi na dużą ilość obowiązków odkładały plany o założeniu rodziny na później lub całkiem z nich rezygnowały, wybierając samotne życie. Niewiele z nich potrafiło łączyć pracę z obowiązkami rodzinnymi.
Ecrire et traduire les émotions dans le roman pour la jeunesse. Les frères Coeur-de-Lion d'Astrid Lindgren.
Authors: Pergher Alizon
Published: May 2020

Children's literature reflects society and conveys new models. This field evolves depending on the representations of childhood that adults build. Recent research shows that children experience deep emotions and that reading contributes to their social and affective development. This paper examines the different issues related to writing the affects aimed at young readers through the study of Astrid Lindgren's novel Les frères Coeur-de-Lion. It focuses on ethical, aesthetic and linguistic questions involved in translating the book from Swedish to French.

 
Utwory fotograficzne w regulacjach prawa autorskiego od czasów II Rzeczypospolitej do chwili obecnej. Analiza prawnoporównawcza.
Authors: Pers Łukasz
Published: May 2020

Tematem niniejszego artykułu jest analiza regulacji prawa autorskiego dotyczących utworów fotograficznych, na tle historycznym.  Pierwszą ustawą normującą sytuację prawną fotografii była ustawa z dnia 29 marca 1926 roku o prawie autorskim. Na jej gruncie utwory fotograficzne mogły stanowić przedmiot prawa autorskiego, ale powstanie praw uzależnione było od spełnienia szeregu warunków formalnych, w szczególności umieszczenia zastrzeżenia praw autorskich. Następna ustawa z dnia 10 lipca 1952 roku o prawie autorskim nie przyniosła wielu zmian w tym zakresie, nadal w znacznym stopniu ograniczając zakres ochrony prawnoautorskiej przyznanej fotografiom. Z kolei obecnie obowiązująca ustawa z dnia 4 lutego 1994 roku o prawie autorskim i prawach pokrewnych zrezygnowała z większości rozwiązań ograniczających zakres ochrony prawnoautorskiej w stosunku do fotografii. Po przeanalizowaniu najważniejszych przepisów odnoszących się do utworów fotograficznych na gruncie kolejnych ustaw z zakresu prawa autorskiego, autor dokonuje oceny zmian, jakie zaszły na tle regulacji prawa autorskiego dotyczących fotografii w XX wieku.
Kilka uwag o rękojmi przy sprzedaży w tzw. obrocie profesjonalnym
Authors: Urbanek Krzysztof Łukasz
Published: May 2020

Przedmiotem artykułu jest analizy ochrony kupującego w umowie sprzedaży w obrocie między przedsiębiorcami. Tekst wskazuje na różnice między ochroną konsumenta a ochroną tzw. profesjonalisty. Główne rozważania dotyczą rękojmi za wady. Autor całkowicie nie rozumie i nie aprobuje dotychczasowego różnicowania sytuacji prawnej podmiotów kontraktu kupna-sprzedaży ze względu na ich „profesjonalny” charakter. Celem autora jest wykazanie, że obecne uregulowanie jest błędne (szczególnie w warunkach polskich), a przede wszystkim błędne jest jego uzasadnienie. Ze względu na poruszenie kwestii fundamentalnych podstaw stosunków społeczno-prawno-gospodarczych niezbędne jest - zdaniem autora – aby chociaż niewielka część opracowania miała charakter na poły filozoficzny.
Odstąpienie od rezultatów wykładni językowej w prawie karnym (na kanwie uchwały Sądu Najwyższego z dnia 26 marca 2009 r., I KZP 35/08)
Authors: Kmąk Krzysztof
Published: May 2020

Artykuł opisuje sytuacje, w których dopuszczalne jest odstąpienie od wyników wykładni językowej. Te przypadki wyliczył L. Morawski, co następnie zostało zaadaptowane przez Sąd Najwyższy na gruncie prawa karnego. Spotkało się to jednak z zarzutem, iż akceptacja takiego postępowania prowadzi do zaakceptowania wykładni prawotwórczej. Analiza powyższych przypadków prowadzi do wniosku, że wyjście poza wykładnię językową w prawie karnym jest generalnie dopuszczalne, o ile nie stanowi wykładni rozszerzającej na niekorzyść sprawcy i ma oparcie w wykładni systemowej i funkcjonalnej.
Wymiar prawny systemu kierowania bezpieczeństwem narodowym RP
Authors: Kołodziejczak Malwina Ewa
Published: May 2020

W polskim prawodawstwie nie ustanowiono – jak do tej pory ustawy, która kompleksowo regulowałaby organizację i funkcjonowanie systemu bezpieczeństwa narodowego czy też - wezej - systemu kierowania bezpieczeństwem narodowym RP. Nie oznacza to jednak, że system kierowania nie funkcjonuje (albo przynajmniej jego elementy). Trudno jednak wskazać istnienie systemu nadrzędnego. Dlatego w niniejszym artykule przedstawione zostaną aspekty prawne systemu kierowania bezpieczeństwem narodowym RP, które są rozproszone w kilkunastu aktach prawnych.
Fertility outcomes following myomectomy in infertile patients at our centre: a retrospective analysis
Authors: Goyal Nidhi , Jayakrishnan K.
Published: May 2020

Background: Fibroids have been known to cause infertility due to multiple factors. However, the role of myomectomy in patients with intramural and subserosal fibroids has been a topic of debate. This study evaluates outcomes following myomectomy in patients seeking treatment for infertility at study centre.Methods: This was hospital based retrospective study which evaluated 92 infertile patients who took treatment for infertility.Results: A total 41.3% patients conceived within one year of myomectomy. Pregnancy rates were better in patients with intramural combined with submucous fibroids, age between 30 and 35 years, size of largest fibroid between 3 and 6 cm and when number of fibroids were between 3 and 6 and conception was maximum after ovulation induction.Conclusions: Pregnancy rates after myomectomy are better in young patients with large fibroids. Active management for infertility needs to be done after myomectomy.
Hyperuricemia as a risk factor for increase severity of coronary vessel occlusion disease: a cross-sectional study in North Indian population
Authors: Singhal Gaurav , Bhardwaj Shilpa , Ahirwar Ashok Kumar , Sharma Harish C.
Published: May 2020

Background: Cardiovascular disease (CVD) is the most common cause of death worldwide. The present study was conducted to study uric acid as a potential biomarker in predicting the severity of CVD in terms of vessel involvement.Methods: A cross-sectional study, conducted at Rajiv Gandhi Super Speciality Hospital, Tahirpur, Delhi. A total of 52 consecutive male and female patients age between 30 to 70 years was included in this study. Written informed consent was obtained from all the enrolled patients. Automated analysers were used for the analysis of blood glucose, lipid profile and serum uric acid level. IBM SPSS Statistics (Version 20.0, IBM SPSS, IL, USA) was used for the statistical analyses.Results: In this study, a total of 52 consecutive patients were divided into three groups; single-vessel disease (n=19), double vessel disease (n=19) and triple vessel disease (n=14). Biochemical profile of all the groups was calculated. A group of triple vessel disease patients showing higher amount (164±42 mg/dl) of cholesterol level as compared to the other two groups (157±34 mg/dl). The mean level of serum uric acid levels significantly differed and its mean levels increases as the severity of vessel diseases increases. The receiver operating characteristic curve shows the uric level has 71% sensitivity and 52.5% specificity for detecting the severity of coronary vessel disease.Conclusions: This study demonstrated an increased serum uric acid levels were associated with increased severity of vessel disease, and serum uric acid is an independent risk factor for coronary artery disease.
A comparative study to assess efficacy of Tzanakis score and Alvarado score for effective diagnosis of patients with acute appendicitis at a tertiary care centre in North Karnataka: a one-year prospective analytical study
Authors: Sharma Dron , Koujalagi R. S.
Published: May 2020

Background: Acute appendicitis standout amongst the most widely recognized reasons for intense stomach torment. There is no ideal symptomatic assessment apparatus to distinguish acute appendix if indications are ambiguous, bringing about longer analytic procedure and it might prompt deferring of medical procedure and related increment in morbidity and fatality. In the meantime, speedy management may prompt negative appendectomy with expanded morbidity and consumption of healthcare resources.Methods: A Hospital based one year prospective study was conducted at KLEs Dr Prabhakar Kore Hospital Belagavi, Karnataka from 1st January 2018 to 31st December 2018 and required data was collected from 100 patient who were clinically diagnosed to have acute appendicitis and all patients were assessed using Alvarado score and Tzanakis score and HPR for all patients were used as gold standard to evaluate the efficacy of both scoring systems.Results: The sensitivity and specificity of Tzanakis score was 80.6% (at score >8) and 100% (at score >8) respectively.  positive predictive value in present study being 100% and negative predictive value being 41.3%. The sensitivity and specificity of Alvarado score was 11.3% (at score >8) and 100% (at score >8) respectively.Conclusions: Tzanakis Score outperformed Alvarado score displaying higher sensitivity with similar specificity.
Correlation of serum level and selective blood indices in children with feberile seizures in Chittoor district, India
Authors: V. Rajesh Kumar , Penchalaiah Ande
Published: May 2020

Background: A seizure or convulsion is a paroxysmal, time-limited change in motor activity and/or behavior that result from abnormal electrical activity in the brain. Seizures are common in the pediatric age group and occur in approximately 10% of children. Most seizures in children are provoked by somatic disorders originating outside the brain, such as high fever, infection, syncope, head-trauma, hypoxia, toxins, or cardiac arrhythmias. To study the association between iron deficiency and the first febrile seizure.Methods: The present study is a retrospective study conducted at the teaching hospital, Chittoor district from August 2019 to December 2019. In this study to detect low iron status as a possible risk factor for first febrile seizures, 63 cases, and 63 age and sex-matched controls are studied and analyzed.Results: In this study family history of febrile seizures is seen only in 28.5% of cases. The mean serum ferritin level in this study is 14.5ng/ml. Thus the mean serum ferritin, HB, and MCV are found to be signed on the lower side among children with febrile seizures.Conclusions: Plasma ferritin level and blood indices are significantly lower in children with febrile seizures as compared to children without febrile seizures suggesting that iron-deficient children are more prone to febrile seizures.
Microbiology and antibiotic sensitivity pattern of peritonsillar abscess
Authors: Choolakkaparambu Aboobakker Anwar Sadath , Sreedhar Sandeep , Jacob Amith , Anchukandan Abdulla
Published: May 2020

Background: Peritonsillar abscess is a life threatening infection which requires immediate attention and care. If not treated immediately it may lead to several complications. But the culture and sensitivity results can be obtained after a minimum of 72 hours and hence empirical antibiotic therapy is needed. The objective of the study was to study the microbiological profile of peritonsillar abscess and the antibiotic sensitivity pattern of peritonsillar abscess.

Methods: This cross sectional study was carried out on 47 quinsy patients who attended the ENT OPD of a tertiary care hospital. Abscess was drained and the pus was sent for culture and sensitivity.  

Results: 65.95% of the study population were males. prevalence of peritonsillar abscess was high in the age group of 21-30 (42.55%). Only one patient had bilateral abscess. Group-A beta hemolytic streptococcus was the common organism isolated followed by Staphyloccus aureus. Fluroquinolones and cefotaxime had a better sensitivity to nearly all the organisms.

Conclusions: Staphylococcus and Streptococcus were the highly prevalent organisms. Immediate empirical antibiotic therapy must be advocated after draining the collection.
Participación y segregación ocupacional de género en los sectores económicos de América Latina durante el siglo XX
Authors: Maubrigades Buzzalino Silvana
Published: May 2020

Este artículo estudia la incorporación de las mujeres al mercado de trabajo en quince países de América Latina durante el siglo XX. También se analiza la segregación ocupacional generada por la división de género en el trabajo. Para este objetivo, se han reconstruido las tasas de actividad de las mujeres a nivel agregado y también en los tres sectores de actividad de la economía: agricultura, industria y servicios. El trabajo permite comprobar que la participación de las mujeres en el mercado laboral no ha sido un proceso meramente acumulativo, sino que estaría más vinculado a la demanda diferencial de fuerza de trabajo de los sectores económicos en los distintos periodos analizados.
Effect of Diabetes Induction and Exercisetraining on the Level of Ascorbic Acid and Muscle SVCT2 in Male Wistar Rats
Authors: Ghalavand Akbar , Motamedi Pezhman , Rajabi Hamid , Khaledi Neda
Published: May 2020

Introduction: Sodium-dependent vitamin C transporter 2 (SVCT2) plays an important role in the transfer of ascorbic acid to slow-twitch fiber. The purpose of this study was investigating the effect of diabetes induction and exercise training on the level of ascorbic acid and muscle SVCT2 in rats.
Methods: In this experimental study, 20 male Wistar rats were randomly divided into four groups (n=5 per group): 1) healthy control 2) diabetic control, 3) diabetic exercise, 4) sham. Diabetic was induced by injection of Streptozotocin solution (55 mg / kg). The exercise program was performed 6 weeks of aerobic running on Treadmill, 5 sessions per week and each training session for 20-40 minutes at an intensity of 50-70 VO2max. Homogeneous tissue of soleus muscle and serum was analyzed to evaluate the effect of exercise training on ascorbic acid metabolism. Data were analyzed by SPSS version 18 software and one-wayANOVA test (P ≤ 0.05).
Results: The results showed that there was significant differences (P < 0.05) between the level muscle and serum ascorbic acid in diabetic and diabetic + exercise groups compare to the healthy control and sham groups. But no significant differences was found in SVCT2 of Soleus muscle between groups (P> 0.05)..
Conclusion: Induction of diabetes induces a decrease in muscle levels of ascorbic acid, which appears to be associated with a decrease in serum ascorbic acid levels, since no significant difference was found in SVCT2 levels. Also, exercise training had no significant effect on serum and muscle ascorbic acid levels of muscle SVCT2 levels.
Investigation of Stem Cell Aging Throughout the Lifetime and Therapeutic Opportunities
Authors: Karimi Sarah , Raoufi Setareh , Bagher Zohreh
Published: May 2020

Introduction: Aging is a natural phenomenon that is caused by changes in the cells of the body. Theoretically, aging starts from birth and lasts throughout life. These changes affect the function of the cells. Also, in old tissues, the capacity for homeostasis and tissue repair is decline due to destructive changes in specific tissue stem cells, niche of stem cells and systemic factors that regulate stem cell activity. Understanding molecular pathways that disrupt stem cell function during aging is crucial for the development of new treatments for aging-associated diseases. In this article, the symptoms of stem cell aging and the key molecular pathways that are commonly used for the aging of stem cells were discussed. We will consider experimental evidence for all of the mechanisms and evaluate the way that can slow down or even stop the aging process. Finally, we will look at the aging process of three types of stem cells.
ANTECEDENTS FACTORS AFFECTING CYBERBULLYING RISKS: A STUDY IN JORDANIAN SECONDARY SCHOOLS
Authors: Almomani Hesham , Al-Jabali Diya , Bni Mufarrej Fayez , Ahmad Heba
Published: May 2020

Purpose of the study: In this study, the primary aim is to identify the effects of self-efficacy and cyber bullying knowledge on cyber bullying risks among Jordanian students.

Methodology: The population of the study specifically comprised of Jordanian students in Irbid students, with the study sample being 153 students. Accordingly, a questionnaire was developed and disseminated among the students to gather data for the achievement of the study objectives. The study used Structural Equation Modeling (SEM). The study also employed AMOS 23.0 and SPSS 25.0 software in SEM.

Main Findings: self-efficacy and cyber bullying knowledge factors do have significant effects on cyber bullying risks.

Applications of this study: This research can be used for academic purposes for universities, lecturers of education and management, researchers and undergraduate and postgraduate students.

Novelty/Originality of this study: The phenomenon that existed in cyber bullying and referring from various previous research results, the study regarding the cyber bullying was conducted and presented comprehensively and completely. It is necessary examine the effect of self-efficacy and cyber bullying knowledge factors on cyber bullying risks.
Young people’s uncertainty about the future: Education system, training, and transition to employment in Spain
Authors: Moreno López Roberto , Esteban Ramiro Beatriz , Barranco Barroso Rut
Published: May 2020

The general context of precariousness of employment affects youth in Spain. Delving deeper into the axes that traverse this uncertainty, we present part of a cross-sectional study on the perception of young people in the city of Toledo, in which an ad hoc questionnaire was used for data collection to compare the results at the Spanish and European level. The sample includes 505 people aged between 16 and 24 years. The main findings indicate a general dissatisfaction with the training received and a lack of adaptation of the transition system to the labor market, elements that repeat themselves in the perception of different agents regarding this context. Significant differences were found regarding the perception of problems considering the education level of the parents and aspects related to the autonomy of the young people, such as living independently or living off of their own income. This represents clear similarities with young Europeans and especially in the Spanish case but presents specific difficulties for young people in regions such as Castilla-La Mancha.Received: 09 October 2019Accepted: 23 March 2020Published online: 19 May 2020
Metanálisis de la suplementación con calcio en la prevención de los trastornos hipertensivos del embarazo
Authors: Conde Agudelo Agustín , Kafury Ana Cecilia , Arana Oscar
Published: May 2020

Evaluar la eficacia de la suplementación con calcio para prevenir los trastornos hipertensivos del embarazo.
Predicción de los trastornos hipertensivos del embarazo mediante la relación calcio/creatinina y otros exámenes de laboratorio
Authors: Conde Agustín , Cifuentes Rodrigo , Belizan José , Lede Roberto , Bergel Eduardo
Published: May 2020

Evaluar la predicción de hipertensión gestacional y preeclampsia mediante la relación calcio/creatinina, hematocrito, recuento de plaquetas y concentraciones séricas de ácido úrico, proteínas y calcio.
Procedimientos olvidados en ginecoobstetricia
Authors: Restrepo Baena Emilio Alberto
Published: May 2020

Se describen varios procedimientos diagnósticos y terapéuticos que fueron usados en la evolución de la ginecoobstetricia y que por lo agresivos, o por la iatrogenia que causaban fueron descartados de la práctica moderna.
Experiencia en diagnóstico colposcópico en un centro de patología cérvico uterina a nivel regional
Authors: González Mazuelo Antonio , Jiménez Ramírez María Elena
Published: May 2020

El presente es un informe de la experiencia en diagnóstico colposcópico en la primera unidad de patología cérvico-uterina creada en el Instituto Metropolitano de Salud de Medellín.Se evaluaron 109 pacientes con citología anormal obteniendo una correlación del 89.9% entre la impresión colposcópica y el diagnóstico histológico.Sólo 5.5% de las pacientes requirieron conización diagnóstica. Se comparan esos resultados con otros informes que definen criterios de calidad en diagnóstico colposcópico.
Candidiasis en patología gineco-obstetricia
Authors: Lapides de Duplat Raquel , Guarin Umaña Felisa , López Avila Luis Vicente
Published: May 2020

Con el fin de establecer la prevalencia de candidiasis vaginal y las diferentes especies comprometidas en la infección cervicovaginal productora de leucorrea, se tomó una muestra representativa de la población que asiste a la consulta externa de ginecoobstetricia, en el Instituto Materno Infantil de Santafé de Bogotá durante el año de 1991 y los resultados fueron los siguientes:1. La candidiasis vaginal representa un 26% de la muestra examinada (559 pacientes).2. No se observa diferencia estadísticamente significativa en los diferentes grupos de edad.3. Las especies de candida encontradas en orden de frecuencia fueron: C. albicalls, C. stellatoidea, C. krussei, C. guillermondii, C. parapsilosis y C. pseudotropicalis.4. En relación con el tipo de consulta se observó un marcado predominio de la candidiasis en la consulta prenatal (35%), en relación con la ginecológica (20%), diferencia estadísticamente significativa (p. 001).5. En relación con la edad del embarazo y la frecuencia de candidiasis se observó que ésta aumenta a medida que avanza el embarazo (13%) en el primer trimestre y (44%) en el segundo.6. Los factores predisponentes más frecuentes fueron en su orden: embarazo, diabetes, obesidad y uso de prostágenos.7. En relación con la consulta ginecológica encontramos, que si bien es cierto, que C. albicalls es la más frecuente, otras especies como stellatoidea y krussei tienen también una alta frecuencia. C. krussei presenta una frecuencia seis veces mayor en consulta ginecológica en relación con la consulta prenatal.
Parto en la adolescente
Authors: López Avila Luis Vicente , Sánchez Angarita Jacinto
Published: May 2020

Durante el período comprendido entre el primero de enero a 31 de diciembre de 1987, se realizó un estudio de casos controles en el Departamento de Ginecología y Obstetricia, de la Facultad de Medicina de la Universidad Nacional, en el Instituto Materno Infantil de Bogotá, con el fin de conocer el comportamiento del parto en las adolescentes frente a un grupo de mayor edad en iguales condiciones socio-económicas. Durante este período se atendieron 8.692 partos, de los cuales 728 fueron en adolescentes (8.37%).Para efectos de este estudio se eligieron al azar 200 adolescentes, entre 12 a 17 años y sus correspondientes controles, primigestantes de 20 y 24 años de edad.Se encontraron los siguientes resultados:En relación con el estado civil se encontró que la mayoría de población era soltera y sin unión estable, siendo la unión libre más frecuente en los controles. Los factores de riesgo estadísticamente mayores en las adolescentes fueron: Preeclampsia, anemia, estrechez pélvica, parto instrumentado, menor peso en el neonato.Se distribuyeron por igual los siguientes factores de riesgos: la infección de vías urinarias, la cual es alta en ambos grupos, el peso del neonato menor de 2.000 gr. en ambos grupos (4.5%), lo mismo que la talla de los neonatos y las malaformaciones congénitas.Riesgos como el estado del recién nacido, calificación de Apgar menor de 7 fue mayor en los controles, lo mismo que las complicaciones del puerperio inmediato.Además un mayor número de cesáreas, partos en pelvis, RPM, complicaciones del puerperio inmediato, sin que fueran estadísticamente significativos.
Embarazo en adolescentes en el Hospital Universitario Metropolitano
Authors: Acosta Osio Guillermo
Published: May 2020

Para conocer la incidencia, así como para determinar el alto riesgo obstétrico y lograr la detección precoz de las probables complicaciones con el embarazo en las adolescentes menores de 17 años, decidimos realizar un estudio descriptivo, prospectivo, incluyendo a todas las adolescentes de 17 años o menos, embarazadas, que acudieron al Hospital Universitario Metropolitano, para su control prenatal y resolución obstétrica, desde enero de 1987, hasta diciembre de 1990.Encontramos una incidencia en nuestro medio de 13.8% de embarazo en adolescentes, de los cuales 5.8% correspondía a jóvenes de 17 años o menos, también se encontró que 25% de las pacientes presentaron complicaciones, siendo la más frecuente el parto prematuro.Entre las conclusiones recalcamos la importancia de que, en todas las instituciones hospitalarias debe existir una consulta especializada para atender a las adolescentes desde el punto de vista obstétrica y ginecológico, y, que esta consulta debe estar conformada por el equipo de salud, a saber: médico, psicólogo, enfermera, nutricionista, trabajadora social, etc.
Stan i perspektywy procesu starzenia się ludności na świecie
Authors: Murkowski Radosław
Published: May 2020

Starzenie się ludności oznacza proces wzrostu odsetka osób starszych w populacji, który jest efektem dwóch długoterminowych trendów demograficznych – zmniejszania się płodności i zwiększania się przeciętnej długości życia. Dla prawidłowego pomiaru zaawansowania tego procesu niezmiernie istotne jest to, jaki wiek uznamy za początek starości. W ujęciu tradycyjnym za osoby starsze uznaje się najczęściej osoby w wieku 60 lub 65 lat i więcej. Natomiast w alternatywnym ujęciu za początek okresu starości można uznać na przykład wiek, dla którego oczekiwane dalsze trwanie życia wynosi dokładnie 15 lat. W wielu miejscach na świecie nieuchronnie wystąpi w przyszłości zjawisko depopulacji, a liczba dzieci stanie się niższa od liczby osób starszych. Osoby w wieku 60 lat i więcej będą w przyszłości stanowić w wielu regionach blisko jedną trzecią ludności. Natomiast odsetek osób, którym zostało mniej niż 15 lat życia, w krajach najbardziej rozwiniętych ustabilizuje się w przyszłości na poziomie około 15% ich populacji. Dlatego granica określająca początek okresu starości w ujęciu tradycyjnym będzie się w przyszłości zwiększać nawet do 70 lat i więcej w państwach najbardziej rozwiniętych.
The Validity and Reliability of Professional Self-Concept in Nursing in Accelerated Bachelor's and Master's Nursing Students
Authors: McCoy Thomas P. , Hoffart Nancy , Lewallen Lynne P. , Thorpe Shemeka
Published: May 2020

Background and Purpose

Accelerated bachelor's and master's nursing students supported through the New Careers in Nursing program were surveyed (n = 3,506) using subscales from Arthur's Professional Self-Concept in Nursing Instrument (PSCNI). Reliability and validity of the instrument was assessed.

Methods

Factor analysis using a random split-half design was conducted and differences investigated based on characteristics.

Results

Four factors were revealed: leadership (α = .85), skill (α = .89), career positivity (α = .72), and career negativity (α = .72), with acceptable confirmatory fit. Gender and race/ethnicity differences were found in self-perceived leadership and skill and in career positivity by race/ethnicity. Accelerated bachelor's and master's students were different on skill and career positivity.

Conclusions

Self-perceived leadership, skill, career positivity, and career negativity are distinct PSCNI concepts.
La asociatividad y el liderazgo del profesor en comunidades rurales de Colombia
Authors: Vásquez Alape Luís Ernesto , Díaz Meza Cristhian James , Monroy González Myriam Esperanza , Álvarez Ochoa Claudia Patricia , Salcedo Casallas Javier Ricardo , Pérez Pérez Tito , Lozano Flórez Daniel , Turriago Rojas Daniel Guillermo
Published: May 2020

¿Cómo fortalecer una cultura de la asociatividad y del liderazgo rural? La respuesta no está en aprender y aplicar fórmulas, sino en proponer y dinamizar procesos inter y transdisciplinares que garanticen la vivencia de la asociatividad y del liderazgo por medio de la comunicación, la confianza, el diálogo, la consciencia comunal, el trabajo comunitario, el liderazgo participativo, el reconocimiento mutuo y el sentido de pertenencia. Esto para el fortalecimiento de una cultura en la que se refuercen la autoestima, la autonomía, la responsabilidad y el compromiso del padre de familia, el docente y el estudiante como sujeto potenciado, capaz de liderar procesos de emprendimiento individual y colectivo. La cultura se debe cimentar en la participación, la solidaridad y la sinergia; cualificadas con prácticas pedagógicas reflexivas y críticas para la transformación sociocultural y la resignificación histórica
Aprendizaje de las ecuaciones diferenciales desde un enfoque cualitativo
Authors: Caicedo Edinson , Chacón Gerardo Antonio
Published: May 2020

Este proyecto investigativo diseñó y validó un modelo didáctico para el aprendizaje de ecuaciones diferenciales, con énfasis en los métodos cualitativos y basados en la concepción cuasi empírica de las matemáticas. Se utilizó una metodología cualitativa, participaron cinco estudiantes de ingeniería de la Universidad Antonio Nariño pertenecientes a un curso de ecuaciones diferenciales. Se utilizaron como instrumentos planes de clase. Los resultados obtenidos evidencian que los estudiantes se sienten motivados e interesados, se observó que la metodología aplicada, basada en la resolución de problemas, empleando conjeturas desde la construcción del modelo hasta llegar a la solución final y el uso de la tecnología para estudiar los métodos cualitativos y numéricos favorece la comprensión de los contenidos del curso. El modelo didáctico ofrece una ruta y recursos que promueven la actividad matemática en los cursos de ecuaciones diferenciales y que puede ser replicado en otros cursos.
Comprensión y resolución de problemas matemáticos desde la macroestructura del texto
Authors: Montero Leidi Viviana , Mahecha Jair Andrés
Published: May 2020

Una preocupación en docentes de básica primaria en Colombia es el bajo desempeño de los estudiantes en el área de matemáticas y en las pruebas de estado, pues a pesar de que existe aptitud en la solución de algoritmos, hay dificultad en los procesos de comprensión de los enunciados de los problemas matemáticos.

El propósito principal de este artículo es compartir una propuesta metodológica que contribuya al mejoramiento de los niveles de comprensión y resolución de problemas matemáticos, desde el concepto de macroestructura textual, integrando las áreas de matemáticas y lenguaje.

El proceso investigativo de carácter cualitativo se desarrolló en el marco de la investigación acción; contó con la revisión y fundamentación teórica y tres fases claves: el diagnóstico, el análisis de la información y, con base en estos dos, la elaboración de la propuesta metodológica.

Como resultados principales se presenta: El diagnóstico de las dificultades y fortalezas a la hora de resolver problemas matemáticos, el diseño de la propuesta metodológica integrando la reconstrucción de macroestructuras en el análisis de enunciados, y el principio de interdependencia entre matemáticas y lenguaje.
A INSTITUIÇÃO DO PROCEDIMENTO DE MEDIAÇÃO NOS PROCESSOS DE CRIMES CONTRA A HONRA
Authors: Guisso Fernandes Glaucia , Perondi Junior Lucilo
Published: May 2020

A presente pesquisa apresenta uma análise acerca da possibilidade de aplicação das técnicas e regras relacionadas ao procedimento da mediação, especificamente nos processos judiciais que envolvem os crimes contra honra previstos no Código Penal Brasileiro. O procedimento judicial para apuração da prática de tais delitos, que se trata de procedimento especial, prevê, no artigo 520 do Código de Processo Penal, a possibilidade de reconciliação, inclusive dispensando a presença do advogado, dando às partes a possibilidade de acabar com a demanda neste ato processual próprio. Desta forma, por meio do método dedutivo, procura-se observar se nesta audiência, que visa única e exclusivamente a reconciliação entre as partes, pode-se aplicar as técnicas da mediação com a finalidade única e específica de aumentar a possibilidade do término do processo.
A INELEGIBILIDIADE DO CHEFE DO PODER EXECUTIVO MUNICIPAL À LUZ DA CONSTITUIÇÃO FEDERAL DE 1988
Authors: Calasans da Silva Júnior Geraldo
Published: May 2020

O presente artigo tem por finalidade analisar a inelegibilidade do Chefe do Executivo Municipal à luz da Constituição Federal de 1988, verificando, especificamente, qual o órgão responsável por reconhecer como inelegível o Prefeito, se é o Tribunal de Contas ou a Câmara de Vereadores. Inicialmente, foi feita abordagem sobre o Tribunal de Contas na Constituição de 1988. Em seguida, verificou-se a distinção entre duas espécies de contas que são prestadas pelo Gestor Municipal: as contas de governo e as contas de gestão. Após, discutiu-se se o parecer prévio do Tribunal de Contaspossui caráter opinativo ou vinculante. Por fim, houve análise dos Recursos Extraordinários 848826 e729744. A metodologia aplicada é nitidamente bibliográfica, pautada na absorção de informações combase em livros e artigos especializados na temática.
PROCESSO DE EXECUÇÃO: HISTÓRICO, CONCEITO, PRINCÍPIOS E FONTES
Authors: Puel Jeferson , Sandi Evandro
Published: May 2020

Neste artigo, o conteúdo pesquisado é o processo de execução. Expõe-se breve histórico da atividade executiva, seguido por conceitos relacionados à temática, princípios aplicados à execução, bem como as fontes do processo executivo. Denota-se, como resultado da pesquisa, que o processo de execução resulta do aprimoramento do direito romano-germânico, com influência do direito europeu, tendente à maior celeridade na prestação jurisdicional. A legislação processual contemporânea, derivada do modelo constitucional de processo, estabelece duas técnicas executivas. Enquanto a fase de execução é fundada em títulos executivos judiciais, o processo de execução é lastreado em títulos extrajudiciais. Ambas as vias se submetem aos princípios que regem a atividade executiva e compartilham das mesmas fontes do direito processual.
Psicose Associada a Produtos de Ervanária: Perturbação Delirante Orgânica de Carácter Iatrogénico
Authors: Machado Ana Sofia , Dias-Amaral Ana , Silva Alzira , Grangeia Rosa
Published: May 2020

Sintomas psicóticos podem constituir a forma de apresentação de alterações estruturais, metabólicas ou tóxicas. As perturbações delirantes orgânicas são caraterizadas pela presença de ideias delirantes com evidência de disfunção cerebral. A iatrogenia pode ser uma causa desta disfunção. Apresentamos um caso de sintomas neuropsiquiátricos, incluindo perturbação delirante, secundária ao uso de produtos de ervanária. A noção de inocuidade associada a estes produtos origina que o consumo dos mesmos não seja referido espontaneamente pelo doente na recolha da história clínica, pelo que a sua utilização deve ser ativamente questionada.
COVID-19 E Cirurgias Urgentes: O Que Mudou?
Authors: Ribeiro Joana , Nave Patrícia , Paulino Ana , Ormonde Lucindo
Published: May 2020

N/a.
Influence Mechanism of Ambidextrous Innovation on Technological Catch-Up in Latecomer Enterprises of Technical Standards Alliance
Authors: Hu Jing , Guan Yingjun , Zhou Lijun , Wang Yilin ,   College of Economics and Management, China Jiliang University No.258 Xueyuan Street, Xiasha Higher Education District, Hangzhou, Zhejiang 310018, China,   Key Laboratory of Quality Infrastructure Efficacy Research, General Administration of Quality Supervision, Inspection  and Quarantive of the People’s Republic of China (AQSIQ) Beijing 100028, China,   Zhongchao Ink Co., Ltd. No.288 Xiuyan Road, Nanhui District, Shanghai 201315, China
Published: May 2020

This study analyzes the mechanism through which ambidextrous innovation influences technological catch-up in latecomer enterprises. It first proposes a conceptual model of the influence of ambidextrous innovation on technological catch-up in latecomer enterprises and introduces the two regulating variables of alliance governance model and absorptive capacity. It then empirically studies the main effect and adjustment effect using hierarchical regression analysis based on a large-sample questionnaire survey, and finally, determines the effect and conditions of ambidextrous innovation on technological catch-up in latecomer enterprises.
A Predictive Model for Fertility Behavior of Women of Childbearing Age: Based on the Apriori Algorithm and Smooth Cut-Point Calculation
Authors: Chen Feng ,   School of Statistics, Huaqiao University No.668 Jimei Avenue, Jimei District, Xiamen, Fujian 361021, China, Zhang Xiuwu
Published: May 2020

We combine the Apriori data mining algorithm and smooth cut-point calculation to build a model that uses microscopic individual data to predict fertility behavior. The data of China’s migrant population from 2013 to 2015 are used to predict the reproductive behavior of migrant women. The accuracy of the prediction results is over 84%. The model also quantifies the extent to which the existing characteristics of individuals influence their reproductive behavior. The government can regulate individual fertility behavior based on the quantified scores.
Forecasting Stock Index Futures Intraday Returns: Functional Time Series Model
Authors: Fu Yizheng ,   School of Economics and Finance, Huaqiao University No.269 Chenghua North Road, Fengze District, Quanzhou, Fujian 362021, China, Su Zhifang , Xu Boyu , Zhou Yu
Published: May 2020

It is of great significance to forecast the intraday returns of stock index futures. As the data sampling frequency increases, the functional characteristics of data become more obvious. Based on the functional principal component analysis, the functional principal component score was predicted by BM, OLS, RR, PLS, and other methods, and the dynamic forecasting curve was reconstructed by the predicted value. The traditional forecasting methods mainly focus on “point” prediction, while the functional time series forecasting method can avoid the point forecasting limitation, and realize “line” prediction and dynamic forecasting, which is superior to the traditional analysis method. In this paper, the empirical analysis uses the 5-minute closing price data of the stock index futures contract (IF1812). The results show that the BM prediction method performed the best. In this paper, data are considered as a functional time series analysis object, and the interference caused by overnight information is removed so that it can better explore the intraday volatility law, which is conducive to further understanding of market microstructure.
Human Body Dynamics Detection of Shock Absorption and Rebound Ability of Specialized Athletic Shoes
Authors: Lin Chia-Yeong ,   Department of International Business Management, College of Management, Hsiuping University of Science and Technology No.11 Gongye Road, Dali District, Taichung City 41280, Taiwan
Published: May 2020

For those who love sports, not only appearance but also functionality are important considerations in the design of athletic shoes. This is a study done on 12 subjects on a college fencing team and other sports teams. The subjects wear experimental specialized athletic shoes, including fencing shoes and other similar athletic shoes. Five kinds of shoes, fencing shoes plus four other similar types of athletic shoes, were examined for their shock absorption and rebound capacities. No significant difference between was found among them in the lunge test. However, there were significant differences between the two types of shoes in the 15 cm and 35 cm jump-down tests and extra heel support silicone gaskets in the fencing-like shoes tests. The fencing shoes proved to be the worst in terms of rebound ability in the 35 cm jump-down test. The fencing shoes had the best shock absorption but the worst rebound ability. In terms of overall performance, fencing shoes had the best shock absorption capacity. It is advisable for fencing shoes to be required during fencing training and at tournaments, but the severity of bounces, jumps, and squats should be lowered to avoid damage to the heel.
User Modeling from Review Browsing History for Personal Values-Based Recommendation
Authors: Takama Yasufumi ,   Graduate School of Systems Design, Tokyo Metropolitan University 6-6 Asahigaoka, Hino, Tokyo 191-0065, Japan, Shimizu Suzuto
Published: May 2020

This paper proposes a personal values-based user modeling method from user’s browsing history of reviews. Personal values-based user modeling and its application to recommender systems have been studied. This approach models users’ personal values as the effect of item’s attributes on their decision making. While existing method obtains a user model from reviews posted by a user, this paper proposes to obtain it from reviews a user consulted for his/her decision making. Methods for determining reviews to present for obtaining user feedback, as well as for selecting items to recommend are proposed, of which effectiveness are shown with user experiments.
Robot Vision System for Human Detection and Action Recognition
Authors: Hoshino Satoshi ,   Department of Mechanical and Intelligent Engineering, Graduate School of Engineering, Utsunomiya University 7-1-2 Yoto, Utsunomiya, Tochigi 321-8585, Japan, Niimura Kyohei
Published: May 2020

Mobile robots equipped with camera sensors are required to perceive humans and their actions for safe autonomous navigation. For simultaneous human detection and action recognition, the real-time performance of the robot vision is an important issue. In this paper, we propose a robot vision system in which original images captured by a camera sensor are described by the optical flow. These images are then used as inputs for the human and action classifications. For the image inputs, two classifiers based on convolutional neural networks are developed. Moreover, we describe a novel detector (a local search window) for clipping partial images around the target human from the original image. Since the camera sensor moves together with the robot, the camera movement has an influence on the calculation of optical flow in the image, which we address by further modifying the optical flow for changes caused by the camera movement. Through the experiments, we show that the robot vision system can detect humans and recognize the action in real time. Furthermore, we show that a moving robot can achieve human detection and action recognition by modifying the optical flow.
Operation Skill Acquisition and Fuzzy-Rule Extraction for Drone Control Based on Visual Information Using Deep Learning
Authors: Maeda Yoichiro , Sano Kotaro , Cooper Eric W. , Kamei Katsuari ,   Ritsumeikan University 1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577, Japan,   OKI Crosstech Co., Ltd. 2-7-5 Minamisuna, Koto, Tokyo 136-0076, Japan
Published: May 2020

In recent years, much research on the unmanned control of a moving vehicle has been conducted, and various robots and motor vehicles moving automatically are being used. However, the more complicated the environment is, the more difficult it is for the autonomous vehicles to move automatically. Even in such a challenging environment, however, an expert with the necessary operation skill can sometimes perform the appropriate control of the moving vehicle. In this research, a method for learning a human’s operation skill using a convolutional neural network (CNN) and setting visual information for input is proposed for learning more complicated environmental information. A CNN is a kind of deep-learning network, and it exhibits high performance in the field of image recognition. In this experiment, the operation knowledge was also visualized using a fuzzy neural network with obtained input-output maps to create fuzzy rules. To verify the effectiveness of this method, an experiment involving operation skill acquisition by some subjects using a drone control simulator was conducted.
Fuzzy-Integral Based Estimate of Vertical-Direction Error Caused by Pointing Fingers at Objects
Authors: Kanoh Masayoshi , Nakamura Tsuyoshi ,   School of Engineering, Chukyo University 101-2 Yagoto Honmachi, Showa-ku, Nagoya, Aichi 466-8666, Japan,   Graduate School of Engineering, Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, Japan
Published: May 2020

There have been recent attempts to control home electric appliances and devices using robots. Information can be shared with robots by using finger pointing. Finger pointing is used as a means of communication with people around. However, when a person points at an object with a finger, position of the object cannot be indicated accurately. In this work, we studied the error between a target point, which a person tries to point at with a finger, and an observation point, which is actually pointed at. We also proposed an error estimation model using a fuzzy integral to estimate and correct the error at the observation point.