bluuebunny/crossref_metadata_2025 huggingface dataset:
Valoración de las posibilidades del desarrollo de la competencia escrita en inglés como lengua extranjera a partir de la aplicación de emoji como elementos conceptuales / Assessment of the possibilities of writing skills development in English as a foreig
Authors: Estrada Chichón José Luis , Ortiz Jiménez María
Published: April 2020

Este trabajo valora las posibilidades de aplicación de los emoji disponibles en la aplicación de chat WhatsApp al desarrollo de la competencia escrita en inglés como lengua extranjera entre estudiantes universitarios. El diseño cuasi experimental de la investigación se desarrolló con una muestra de estudiantes (N=22) que conformaban la población censal de una asignatura de la mención en Lengua Extranjera/AICLE del Grado en Educación Primaria de la Universidad de Cádiz, España. La naturaleza interpretativa del estudio propicia un enfoque de tipo mixto, al incorporar datos de tipología cuantitativa y cualitativa, recopilados a partir de tres herramientas de investigación: un cuestionario inicial sobre las preferencias de los estudiantes en relación con la elección y el uso de emoji; una actividad académicamente dirigida que suponía la creación de un texto narrativo a partir de una serie de temáticas cerradas que incorporaba necesariamente emoji; y una entrevista final para indagar sobre la opinión de los estudiantes acerca de la posible aplicación de emoji en el aula de idiomas. Los resultados muestran potenciales beneficios en el uso de emoji como representantes del ámbito conceptual para el desarrollo de la competencia escrita en lengua extranjera. El estudio concluye con una serie de recomendaciones basadas en los principios teóricos y los resultados alcanzados con el objeto de implementar el uso de emoji a los procesos de enseñanza-aprendizaje de idiomas.
Üst gastrointestinal sistem endoskopi uygulanan hastalarda intestinal metaplazi sıklığının araştırılması
Authors: AYDIN Muhammet
Published: April 2020

Giriş ve Amaç: İntestinal metaplazi; epitelyumun, kronik mukozal irritasyona bağlı olarak bağırsakta bulunana benzer bir epitel türüne dönüşümüdür. İntestinal metaplazinin risk faktörleri; Helicobacter pylori enfeksiyonu, etnik köken, sigara ve alkol kullanımı, hormonlar, pH’daki değişimler, yüksek tuz alımı ve kronik safra reflüsünü içermektedir. Bu çalışmanın amacı, farklı endikasyonlarla endoskopi uygulanan hastalarda intestinal metaplazi varlığını ve risk faktörleri ile ilişkisini araştırmak, ayrıca literatür eşliğinde intestinal metaplazi yaygınlığını irdelemektir.

Gereç ve Yöntem: Hastaların yaş ve cinsiyet gibi demografik özellikleri, sigara ve alkol kullanımı, aile öyküsü, pilorun açıklık durumu, endoskopik metaplazi bulguları, patolojik bulguları (histopatolojik özellikler, safra gastriti, Helicobacter pylori, atrofi, displazi ve intestinal metaplazi varlığı) intestinal metaplazi türü, Helicobacter pylori varlığı, kaydedilerek retrospektif olarak analiz edilmiştir.

Bulgular: Çalışmaya yaşları 15-49 yıl arasında değişmekte olan toplam 217 hasta dahil edilmiştir. Hastaların 106’sı (%48.8) erkek olup, ortalama yaş 33.23±7.87 yıl olarak saptanmıştır. Katılımcıların 88’i (%43.3) sigara ve 46’sı (%22.7) alkol kullanmaktadır. Hastaların 51’inde (%23.5) endoskopide metaplazi görüntüsü saptanırken, patolojik raporu metaplazi olarak gelen hastaların sayısı ise 72’dir (%33.18). Saptanan metaplazilerin tamamı komplet tür metaplazidir. Hastaların 85’inde (%39.17) Helicobacter pylori pozitif saptanırken, bu hastaların 75’inde (%34.56) Helicobacter pylori varlığı patolojik olarak doğrulanmıştır. Metaplazi saptanan ve saptanmayan olgular arasında Helicobacter pylori pozitifliği, sigara ve alkol kullanımı, yaş, cinsiyet ve aile öyküsü açısından anlamlı fark saptanmamıştır (hepsi için p >0.05).

Sonuç: İntestinal metaplazi sıklığı yeme alışkanlıkları ve yaşam tarzı değişiklikleri ile büyük ölçüde azaltılabilir. İntestinal metaplazinin yeterince erken bir aşamada saptanarak tedavi edilmesi, mide kanseri sıklığının azaltılması açısından büyük önem taşımaktadır.
Dimensión axiológica en la formación profesional de estudiantes medicina
Authors: Nakao Avila Rosario , Rodríguez González Grethel , Rojas Esteva Miroslava , Tamayo García Luis Armando
Published: April 2020

En el artículo se analiza la dimensión axiológica en la formación profesional del estudiante de medicina en la Universidad de Holguín, Filial de Ciencias Médicas de Banes (Cuba); se toma como referente la educación en valores y su transversalización en el currículo del referido programa académico. Se realiza un estudio descriptivo de corte transversal con estudiantes del segundo año de la carrera de medicina, con el fin de identificar los valores predominantes en su perfil durante el curso 2018- 2019. Los resultados permiten la caracterización del desempeño en relación con procesos motivacionales para contribuir a la formación de un ciudadano comprometido con su profesión. Del mismo modo se muestran factores desde la subjetividad, vinculados a la pertinencia del conocimiento socializado y al ejercicio docente; por una parte predomina la honestidad, responsabilidad, compromiso y por la otra se requiere una mayor atención a la dignidad, honradez, laboriosidad y justicia. Se concluye en la necesidad de fortalecer una dimensión axiológica en el perfil, desde la mediación de los procesos de autoevaluación y dirección estratégica que conlleven a acciones precisas y eficaces en el plano didáctico y curricular.
Variante metodológica para favorecer el proceso enseñanza aprendizaje del estudiante de la cultura física y el deporte
Authors: Expósito Jorge Marcelino , Pérez Días Yuliet , Borjas Nieves Cesilda , Desdín Toro Mérida Madelin
Published: April 2020

El presente artículo aborda una variante metodológica para favorecer el proceso enseñanza aprendizaje del estudiante de la cultura física y el deporte en el Centro Universitario Municipal de Banes (Cuba), en la asignatura Ejercicio Físico y Rehabilitación. El diseño metodológico se fundamenta en la creación de estrategias didácticas y creativas que vinculen teoría y práctica currícular en condiciones de semipresencialidad. Los resultados evidencian que la variante metodológica integrada al ciclo didáctico implica la concepción y ejecución de ejercicios terapéuticos que contribuyen a mejorar la salud y la calidad de vida de los pacientes, específicamente a través de una propuesta de fisioterapia al espolón calcáneo. Se valida el carácter práctico de la propuesta centrada en actividades de investigación y desarrollo. Entre las principales conclusiones destaca la pertinencia y adecuación de la propuesta para el trabajo en los colectivos metodológicos que fundamentan acciones orientadas a fortalecer el proceso formativo.
NUMERICAL INVESTIGATIONS ON FLOW CHARACTERISTICS OF SAND-WATER SLURRY THROUGH HORIZONTAL PIPELINE USING COMPUTATIONAL FLUID DYNAMICS
Authors: AHMED Shofique Uddin
Published: April 2020

The study presents the numerical computational fluid dynamics (CFD) analysis of sand-water slurry flow with different sand particle sizes viz. 90µm, 125µm, 150µm, 200µm and 270µm having specific gravity of 2.65 through a 103 mm diameter, 5.5 m long horizontal pipeline for a high flow velocity of 5.4 m/s at various solid volumetric concentrations viz. 10%, 20%, 30%, 36% and 40%. Granular version of Eulerian two-phase model with dispersed particles along with RNG –epsilon approach has been utilized. Non-uniform structured mesh with a refinement near the wall boundary has been selected for discretizing the computational flow domain while Navier-Stokes governing equations are solved in FLUENT 14.0. The effects of the size of sand particles and solid volumetric concentrations on territorial concentration distributions, particle flow velocity and pressure drops have been studied and analyzed. Generalized mathematical correlation has been developed from the simulated results for calculating the consequences of the size of solid particles and solid volumetric concentration on pressure drop analytically. The simulated outcomes of pressure drop are validated with the experimental results. These outcomes will be very helpful in the setup of an experimental model for sand/water slurry flow pipelines in many industries viz. mining, construction, power generation etc.
New screening method for cervical cancer - polar prob, TruScreen
Authors: Ozdemir Halis , Serbetcioglu Gonca Coban , Ayhan Ali
Published: April 2020

Background: Although extensive screening methods had been developed, cervical cancer remains to be an essential health problem. Early detection and administration of appropriate therapy is still a lifesaving procedure, especially for cervical cancer. The most common screening method for cervical cancer is still the cervical cytology (Pap-test). We aim to find out the advantages and disadvantages of a recently developed method, which is called as TruScreen®.Methods: Two different approaches had been used (conventional Pap test and TruScreen®), and 1438 patients were included in the study. Of these, 819 had been screened with TruScreen®. All eligible patients were firstly screened using TruScreen® and then using the Pap-test. Each patient with an abnormal TruScreen® result was referred to colposcopy room, where she was re-evaluated using colposcopy.Results: The rate of abnormal smear result was 1.04%, and the corresponding percentage was calculated as 0.62% in LSIL, 0.34% in ASCUS, and 0.069% in HSIL. A total of 819 patients underwent TruScreen®, and the results were abnormal in 261 patients and normal in 558 patients Interception rates for cervical dysplasia with TruScreen® have been found to be better than the conventional Pap test. The need for colposcopy dramatically increased with the use of TruScreen®. Use of TruScreen® alone was not found to be cost effective.Conclusions: Combination with other methods of screening would decrease the cost of the process. Further studies needed to find out the possible effects for the combination of TruScreen® with other testing methods.
Indications of primary caesarean section in multiparous women in patients of rural area of Western Maharashtra, India
Authors: Nene Deepti Kiran , Baheti Tushar Chandrakant , Bangal Vidyadhar B.
Published: April 2020

Background: Caesarean section is commonly performed operation in women in last few decades and can be life saving for the child, the mother or both in certain cases. Primary caesarean section in the multipara means first caesarean section done in the patients who had previously delivered vaginally once or more. Aims and objectives of this study were to know the incidence and various indications of primary caesarean section in multipara.Methods: This was a prospective study of primary caesarean section in multipara women admitted at tertiary care hospital in western rural Maharashtra during the period of 6 months from January 2018 to June 2018. Multipara with pregnancy of >28 weeks gestation (gravida 2 and above), each of whom has had a previous vaginal delivery of >20 weeks gestation were included. Women with previous abortions and previous section were excluded.Results: Total no. of deliveries during this period were 4648.Total 1705 sections were performed during the same period. Thus, the incidence caesarean sections are 36.68%. Out of these sections 194 sections were performed in multipara for the first time, thus giving the incidence of 0.42% of total deliveries and 11.38% of total caesarean sections. Most common indication for caesarean section in multipara was malpresentation (19.6%) followed by foetal distress (16.49%) and severe pre-eclampsia (13.4%).Conclusions: Present study concludes that proper antenatal care should always be given to multipara even though there was history of previous vaginal deliveries.
Sero-prevalence of unvaccinated adolescent girls susceptible to rubella virus infection seen in a tertiary care hospital of Patna, Bihar, India
Authors: Prasad Dipali , Prasad Nidhi , Prakash Vidyut , Parveen Sadia , Mishra Urvashi
Published: April 2020

Background: Rubella infection occurring during early pregnancy results in congenital rubella syndrome (CRS).  WHO estimates that worldwide more than 100,000 children are born with CRS each year and most of them are in the developing countries. For assessing population immunity against rubella, sero-surveys are generally recommended among adolescent girls and reproductive age female. In India, sero-surveys conducted by different authors have indicated that about 10-30% of adolescent females are susceptible to rubella infection. Adolescent girls are selected because they are at a critical stage of child bearing age and their immunity against Rubella infection is the particular area of interest. objective of this study was to estimate the sero-prevalence of unvaccinated adolescent girls susceptible to Rubella virus infection attending a tertiary care hospital of Patna and then accordingly counsel for vaccination.Methods: A total 150 adolescent girls in the age group of 10-19 years who had not received MMR vaccine were included in the study. Serum IgG antibody titer for rubella was estimated by the ELISA method.Results: A total 65.33% of the adolescent girls were found to be rubella seropositive and (34.67%) were seronegative. The urban adolescent girls had a higher seropositivity of 85.2% as compared to rural adolescent girls.Conclusions: The study indicates that a substantial number of adolescents (34.67%) are seronegative and hence susceptible to rubella infection.
A study to correlate admission non stress test and immediate post-partum umbilical cord arterial pH with neonatal outcome
Authors: Nainani Rakhi , Athwani Vivek , Avasthi Kumkum , Bansal Venus , Sharma Pardeep
Published: April 2020

Background: Continuous electronic fetal monitoring in labour has become a standard practice in developed countries; this may not be possible in low middle-income countries. So, this study was conducted to correlate admission non stress test (NST) and immediate post-partum umbilical cord arterial (UCA) pH with neonatal outcome.Methods: This prospective observational study was conducted at tertiary care centre in North India. After informed and written consent, 100 pregnant women with singleton live pregnancy of gestational age ≥32 weeks admitted in labour, were subjected to admission NST and immediately after delivery sample for UCA pH was taken. Clinically relevant neonatal outcome was correlated with admission NST and UCA pH. Appropriate statistical tests were used and p-value <0.05 taken as significant.Results: Admission NST was normal, suspicious, pathological in 67%, 27%, 6% subjects, respectively. Study found statistically significant correlation between admission NST and UCA pH with neonatal outcomes (i.e. fetal distress, need of advanced resuscitation, delayed oral feeding). Fetal distress was seen in 9 newborns, in these 8 delivered by CS and 1 required ventous application. Admission NST had high sensitivity (88.89%) and NPV (98.5%) for detection of fetal distress. The optimal cut off for pH and lactate was 7.25 and 2.55 mmol/L, respectively to predict fetal distress.Conclusions: Admission NST can be considered as a screening modality to detect fetus in distress and it showed good correlation with umbilical cord arterial pH for predicting short term neonatal outcome.
A study of maternal outcome in first trimester bleeding
Authors: Bala Neerupham , Kaur Navneet , Shifali Anand , Wakhloo Ajay , Tabassum Nazia
Published: April 2020

Background: The outcome of first trimester vaginal bleeding is a matter of debate. Vaginal bleeding is common and potentially alarming symptom in early pregnancy. First trimester bleeding is a common occurrence. It has been estimated to occur in 15-25% of all pregnant women. Objective of this study was to evaluate the various maternal outcomes in women with first trimester bleeding.Methods: This prospective observational study was conducted in the postgraduate department of obstetrics and gynecology, SMGS Hospital, Government Medical College, Jammu, Jammu and Kashmir, India. The study included 200 pregnant women presented with first trimester bleeding. All the women were followed prospectively till delivery and early postpartum period for various outcomes such as preterm delivery, PROM, PPROM, anemia, oligohydramnios, placental abruption, placenta previa and postpartum hemorrhage.Results: Out of 200 patients studied, 19% patients aborted. Ectopic and molar pregnancy was seen in 5% and 1.5% patients respectively. Out of 74.5% patients who continued pregnancy, maternal complications included anemia (52%), PROM (14.09%), oligohydramnios (6.71%), placenta previa (5.37%), PPH (4.03%), PPROM (2.68%), preeclampsia (2.01%), gestational hypertension (1.34%), abruption and post-datism (0.67% each).Conclusions: From the results of this study, it can be concluded that first trimester bleeding can be a predicting factor in terms of mother and infant consequences of pregnancy and it is necessary to increase the knowledge of pregnant women in this regard for closer care.
Sweeping of the fetal membranes and its effect on duration of pregnancy in low risk cases
Authors: Batham Sonu Kumar , Kori Archana , Sirpurkar Manik S.
Published: April 2020

Background: This study aimed to determine effectiveness of sweeping of membranes on the duration of pregnancy at term, and its effect on maternal and neonatal outcomes.Methods: In this prospective study, 145 women with uncomplicated pregnancy at 39 weeks or more gestation who were attending regular ANC clinic, were recruited for study, out of them 60 were cases (sweeping group) and 85 were control (no sweeping group). Primary outcome measure was occurrence of spontaneous labour and total duration of pregnancy. Other outcome measures included were interval of onset of labour from membrane sweeping, incidence of premature rupture of membranes, total duration of active labour, mode of delivery, rate of caesarean section and causes, and neonatal and maternal outcome.Results: There were no statistically significant differences between the two groups regarding maternal age, parity and bishops score at recruitment. There was a significant difference observed in spontaneous labour rate and interval time between recruitment to delivery in groups. There was no significant difference regarding mode of delivery, maternal and fetal outcomes.Conclusions: Membrane sweeping is a safe procedure that reduces the incidence of post-term pregnancies if applied at term.
Androgenic alopecia in post-menopausal female: a clinical presentation
Authors: Nahar Kirty , Bohra Usha , Arya Vivek
Published: April 2020

Androgenic alopecia is a patterned hair loss occurring due to systemic androgens and genetic factors. It is the most common cause of hair loss in both genders. The appearance of this condition is the cause of significant stress and psychological problems, making appropriate management important. A 68-year-old postmenopausal female presented with complaints of increased hair loss from scalp, excessive hair growth at undesired sites and hirsutism not corrected with medications. On thorough investigations, CT scan whole abdomen and endocrinological workup, a clinical diagnosis of alopecia and hirsutism due to hyperandrogenemia secondary to ovarian tumor made. Abdominal hysterectomy with B/L salpingo-oophorectomy was done. Histopathological examination revealed an encapsulated tumor in right ovary-sex cord stromal tumor consistent with Leydig cell tumor in right ovary, no evidence of malignancy. Left ovary was normal. Patient showed significant regression of clinical signs and symptoms on follow up after 1 month. All women with severe hirsutism or androgenic alopecia needs further work up to locate the source of androgen over production.
Ovarian maldescent: a case report and discussion
Authors: Mukherjee Soma , R. Sanghamita , Bhartiya Nandita
Published: April 2020

Undescended ovary or ovarian maldescent is a rare condition usually associated with mullerian malformation and typically found in case of infertility during their workup. Embryologically, the ovarian development from the genital ridge is totally different from the paramesonephric duct which forms the uterus and fallopian tubes. Still the ovarian maldescent has strong association with mullerian abnormalities, especially with unicornuate uterus. Therefore, supporting the hypothesis that abnormal migration could affect their normal fusion. In strong correlation of ovarian maldescent with mullerian abnormality here we report case of a patient presented to infertility clinic with unicornuate uterus with unilateral renal agenesis diagnosed to have unilateral undescended ovary with conclusion that the accurate diagnosis is important and radiological effort should be made to locate the undescended ovary if the ovary could not be found in normal location especially when associated with mullerian abnormality.
Ectopic ovarian pregnancy following in vitro fertilization: case report
Authors: Khandelwal Shrinkhla , Natu Neeta
Published: April 2020

Ovarian pregnancy is a rare form of extrauterine ectopic pregnancy. Risk factors such as reproductive treatments and infertility have been identified in recent studies. In this article, we present a case of ovarian ectopic pregnancy occurring following in vitro fertilization treatment and a fresh embryo transfer. The diagnosis of ovarian pregnancy was made during transvaginal sonography performed due to suspected ectopic pregnancy. Ovarian ectopic pregnancy is a rare clinical phenomenon. Late diagnosis and lack of appropriate intervention may have catastrophic results. Several mechanisms and risk factors are proposed, and their acknowledgment may improve early diagnosis and prevention of complications.
An unusual case of ileo-uterine fistula discovered after full term normal delivery
Authors: Singh Suneeta , Singh Sanjay , Sharma Sanjay , Deepak Opjinder Singh , Banerjee Ahijit
Published: April 2020

Entero-uterine fistula is a very rare type of fistula between the small intestine and the genital tract. They may result from obstetric or gynaecological procedures like post D and C perforation of the uterus. Timely detection and management reduce morbidity and mortality of the patients. We present a case of entero uterine fistula in a lady which was diagnosed on second postnatal day when she complained of passage of stool per vaginum. She had a previous history of mid trimester abortion followed by D and C after which she remained hospitalised for a week for pain abdomen. The diagnosis of this fistula was based on her symptoms and clinical evaluation of passage of intestinal content through the cervix and CT scan finding of gas in the abdomen. Intraoperatively an ileal loop was found adherent to the posterior wall of uterus with large fistula between bowel and the uterus. There was no intraperitoneal faecal contamination. Adherent small bowel was separated from the posterior wall of the uterus and fistula dismantled. Side to side functional end to end anastomosis was done using TLC 75 stapler. Repair of the uterine rent was also done. Post op recovery was uneventful.
A case of successful conception after Jone's metroplasty in woman with recurrent pregnancy loss with septate uterus
Authors: Bhatu Jaydeep , Ganatra Hina
Published: April 2020

Anomalies of the reproductive tract are common and are seen in approximately 3-5% of the general population. These are usually asymptomatic, but are sometimes associated with recurrent pregnancy loss or infertility. Among these anomalies, septate uterus is the most common anomaly to be associated with obstetric complications and infertility. A 27 years old female patient P0A2L0 with first spontaneous abortion at 3 months and second spontaneous abortion at 4 months came to OPD with complaint of recurrent pregnancy loss. She was advised USG of pelvic region which shows septate uterus with normal cervix, fallopian tubes and ovaries. Patient prepared for DHL complete septum present normal B/L ostium and Jone's metroplasty done in which wedge shaped incision kept on uterine fundus, common cavity created by un roofing septum myometrium closed and AT the end Copper T 375 placed in intrauterine cavity for 6 months. 1 year after surgery patient came with UPT positive for antenatal visit at sola civil. Patient is now with 30 weeks of pregnancy with normal single intrauterine live cephalic fetus, metroplasty is an accepted method of treatment in women with recurrent abortions and septate uterus and it significantly improves the subsequent reproductive outcome. combined data from several published series and reported that the incidence of spontaneous abortion and preterm delivery rate decreases significantly after metroplasty, whereas, the incidence of term delivery rate increases.
Macroscopic examination of fetal appendices in delivery room: good practice at Panzi hospital
Authors: D. Boengandi Walala , O. Nyakio Ngeleza , B. Mukanire Ntakwinja , K. Raha Maroyi , G. Katenga Bosunga , D. Mukwege Mukengere
Published: April 2020

The review of fetal appendices is described in the literature, and its importance is well established. Indeed, pathological findings in the placenta can provide information on the pathogenesis of the fetus, including intrauterine growth retardation, mental retardation or neurodevelopmental disorders. This helps to understand a child's disability, but also maternal complications such as preeclampsia. Despite the relevant information provided by the various studies, fetal appendices are not systematically examined in several maternity hospitals in our country, DR Congo. We report good practice from the examination of fetal appendices to the maternity ward of Panzi Hospital, in the town of Bukavu, South Kivu, DR Congo.
Object tracking algorithm for a passive positioning system
Authors:   Ryazan State Radio Engineering University, Klochko V.K. , Smirnov S.A. ,   Ryazan State Radio Engineering University
Published: April 2020

We propose an algorithm for small-sized mobile object detection and trajectory parameter estimation for a passive positioning system that consists of several optical, thermal, and radio sensors. The algorithm is based on a combination of spatial and temporal processing of observation data. For spatial processing, a set of equations is solved that defines the sufficient condition for coupling the direction vectors to probable objects in the image stereo pair. Object coordinates and velocities for a single observation period are estimated. For temporal processing, the direction vectors are distributed based on connection to probable objects in a sequence of the capture intervals. The results of numerical modeling of the proposed algorithm show the advantage of combining the two approaches in comparison with the traditional object detection and tracking algorithms.
Influence of a synthesis method of hologram projectors and phase distribution in the object plane on the quality of the reconstructed image
Authors:   St. Petersburg National Research University of Information Technologies, Mechanics and Optics, Koreshev S.N. , Smorodinov D.S. ,   St. Petersburg National Research University of Information Technologies, Mechanics and Optics, Starovoitov S.O. ,   St. Petersburg National Research University of Information Technologies, Mechanics and Optics
Published: April 2020

The paper presents results of research into the influence of the hologram synthesis method, as well as the phase distribution in the object plane used to describe the object wave, on the quality of the reconstructed image. Using numerical experiments, we synthesized hologram-projectors of two-dimensional amplitude binary transparencies, which present photomasks intended for the im-plementation of a holographic photolithography method. Two methods of hologram synthesis were considered: a method based on the Huygens principle and a method of look-up tables. It is estab-lished that the modified method of look-up tables allows generating holograms characterized by a higher quality of the reconstructed image. The effect of phase mask insertion in the wave illumi-nating the object on the quality of the reconstructed image is also demonstrated.
Designing multilayer dielectric filter based on TiO2/SiO2 for fluorescence microscopy applications
Authors:   Faculty of Physics, VNU University of Science, Mai Hanh Hong
Published: April 2020

This study presents a new construction design of a distributed Bragg reflector (DBR) filter and a Fabry–Pérot (FP) filter by using needle technique as a synthesis method. The optimized DBR and FP filters having a proper number of layers with controlling thickness TiO2/SiO2 are utilized to transmit only a certain narrow band of wavelengths while blocking the others. As a proof of concept, the filters are designed to selectively transmit only a very narrow band of wavelength at 780 nm which is the near infrared (NIR) fluorescent emission from Alexa Fluor 750 dye. The obtained results show that the optimized filters represent advanced spectral performance which can be used to improve the sensitivity and the imaging contrast in fluorescence microscopy.
Sorption of Non-Ferrous Metals on Amorphous Titanium Phosphate
Authors: Maslova M.V. , Gerasimova L.G.
Published: April 2020

The results of research of the sorption behavior of non-ferrous metal ions (Zn2+, Co2+, Cd2+ и Pb2+ ions ) on amorphous titanium phosphate, with TiO(OH)(H2PO4)2·H2O chemical composition are presented. According to the adsorption isotherms the maximum sorption capacity was found to be (mg/g): Co2+ –66.1; Zn2+ –73.5; Cd2+ –179.1; Pb2+ –403.6. Mesoporous structure of the sorbent provides the high sorption kinetics and uptake of studied ions occurs up to 15 min. The presents of strongly acid functional groups in the sorbent matrix governs its successful operation under acid conditions. Simulated and real sewage multicomponent solution were tested and shown that titanium phosphate is a promising material for toxic metal removal. The chemical composition of purified water meets the requirements of the MPC for natural water.
Carnitina libre y total en sangre de cordón umbilical
Authors: Osorio J.H. , Pourfarzam M.
Published: April 2020

Se han encontrado concentraciones anormales de carnitina en niños asociadas con deficiencias primaria y secundaria de carnitina, con disminución de las concentraciones en sangre y tejidos, así como niveles elevados en algunos errores innatos del metabolismo. El presente estudio tiene como objetivo la obtención de valores de referencia para carnitina libre y total en sangre de cordón umbilical, como herramienta en el diagnóstico temprano de errores innatos del metabolismo. Se analizaron mediante espectrometría de masas en tándem (MS/MS) 130 muestras de sangre de cordón umbilical de nacimientos con embarazos a término y peso normal al nacer (78 niños y 52 niñas) de una población colombiana. No se encontró diferencia estadísticamente significativa dependiente del sexo del recién nacido. Reportamos valores de referencia para carnitina libre y total en sangre de cordón umbilical de 18,5 ± 3,4 µmol/L y 20,9 ± 4,2 µmol/L respectivamente.
Valor de la microcirugía como tratamiento de la infertilidad masculina en la era de la reproducción asistida
Authors: Narváez R. Héctor
Published: April 2020

La actuación sobre el tubo epididimario y el conducto deferente obstruidos con diámetros aproximados de 0.1 y 0.3 mm respectivamente, precisan de la aplicación de técnicas microquirúrgicas. La microcirugía también puede hallarse indicada en determinados casos de varicocelectomía.Por encima de todos los tópicos que se apuntan con relación a la microcirugía, cabe mencionar que los factores más importantes son la práctica y la experiencia, por lo que es conveniente tener la oportunidad de realizar estas cirugías de manera frecuente en la clínica humana.
РЕГИОНАЛЬНЫЕ ОСОБЕННОСТИ ЭКОЛОГО-ГЕОХИМИЧЕСКОГО СОСТОЯНИЯ ПОВЕРХНОСТНЫХ ВОДНЫХ ОБЪЕКТОВ В ТАЕЖНОЙ ЗОНЕ ЗАПАДНОЙ СИБИРИ
Authors: Марков Михаил Леонидович , Потапова Татьяна Михайловна , Задонская Ольга Викторовна
Published: April 2020

Актуальность.Количественная оценка эколого-геохимического состояния поверхностных вод и факторов ихформированияявляется одним из важнейших этапов управления водными ресурсами, определяющим эффективность мероприятий по комплексному использованию и охране вод. Цель:количественная оценка региональных особенностейсовременного эколого-геохимического состояния поверхностных водных объектов в таежной зоне Западной Сибири. Методы: методы определения химического состава вод:титриметрический, турбидиметрический, фотометрический, ионная хроматография, инверсионно-вольт-амперометрический, атомно-абсорбционный, масс-спектрометрический с индуктивно-связанной плазмой; статистические методы. Результаты и выводы.По результатам анализа материалов многолетних гидрохимических наблюдений Росгидромета и ряда других организаций рассмотрены региональные особенности эколого-геохимического состояния поверхностных водных объектов в таежной зоне Западной Сибири. Показано, что химический состав поверхностных вод в регионе в значительной степени определяется природными процессами заболачивания, вследствие чего наблюдается нарушение рыбохозяйственных и хозяйственно-питьевых нормативов качества по величине pH, содержанию NH4+, Fe, Al, Mn, фенолов, веществ, идентифицируемых как «нефтепродукты», а также рыбохозяйственных нормативов – по содержанию NO2–, фосфатов, Cu, Zn и хозяйственно-питьевых – по величине бихроматной и перманганатной окисляемости. Установлено, что антропогенное влияние достаточно надежно выявляется по повышению содержаний хлорид-иона (в пределах предельно допустимых концентраций, но в 2–3 раза выше фоновых значений). Разработаны рекомендации по организации процесса оценки гидрохимического фона. На основе региональных фоновых концентраций загрязняющих веществ и расходов воды на режимных створах сибирских рек могут быть определены степени разбавления сточных вод, сбрасываемых в реки,с сильно заболоченными водосборами. Эти расчеты должны быть положены в основу утвержденных нормативов допустимых воздействий на речную сеть таежной зоны Западной Сибири.
Pre-Service Teachers’ Perceptions of the Teaching Principles and Methods Course: Metaphor Analysis
Authors: ESEN AYGÜN Hanife , ŞAHİN TAŞKIN Çiğdem
Published: April 2020

Teaching Principles and Methods is an important course regarding the quality of teacher education which enables pre-service teachers to gain knowledge and skills about teaching. Through this course, learning outcomes, the roles and activities of teachers and students are clearly defined. Besides, it enables teachers to follow a planned and goal oriented pedagogical path. In this study, pre-service teachers' perceptions of Teaching Principles and Methods course were examined through the metaphors. A phenomenological research design is used in this research. The participants were selected through criterion sampling. In this respect, pre-service teacher enroll the Teaching Principles and Methods Course was considered as a criterion in the fall semester of 2018–2019 academic year. Thus, 117 pre-service teachers from the second year of Basic Education Department participated in the study. Pre-service teachers were asked to respond to the phrase "Teaching Principles and Methods are similar to …. because this is like …..". Thus, pre-service teachers produced variety of metaphors to explain the Principles and Methods Course. Findings obtained from this research revealed that three main categories were emerged through the data analysis. They were named as: The Function of Teaching Principles and Methods Course, The Structure of Teaching Principles and Methods, and the Importance of Teaching Principles and Methods Course
Populismo, emoção e a corrupção da linguagem
Authors: Wainberg Jacques Alkalai
Published: April 2020

Este estudo elabora sobre as principais características do discurso populista e analisa os pronunciamentos dos candidatos à presidência da República na eleição de 2018 no Brasil. Trata também da retórica política e de sua tendência à ambiguidade e vaguidade. Para tanto combina vários métodos de pesquisa. Fica clara a tendência oposicionista dos pronunciamentos e o tom emocional dos discursos.
A reincidência do acontecimento no discurso jornalístico
Authors: Marocco Beatriz Alcaraz
Published: April 2020

Este texto pretende esboçar um percurso teórico-metodológico para a compreensão da reincidência de um acontecimento arcano na reportagem “Cartão-postal do abandono”, publicada em Zero Hora na edição de 10 e 11/12/2016. O projeto do governo brasileiro de repressão à ociosidade e às profissões desonestas, localizado pela autora em trabalho anterior, ocupa uma zona de sombra no conjunto de informações operadas pelo repórter de ZH. Em diferentes condições históricas de possibilidade, na virada do século XIX, a imprensa incluiu os indivíduos que desafiavam a ordem e o progresso nas cidades, para excluí-los da sociedade. Na atualidade, o repórter tece uma polifonia de vozes que produziram os mesmos sentidos de exclusão social, desta vez, incluindo outros personagens. Esta análise enunciativa de uma heterogeneidade de discursos lança luz sobre as relações de poder que estão em jogo na produção de relatos jornalísticos, ao longo da história.
THE CONSTRUCTED CHICANA IDENTITY AND MYTH IN THE HOUSE ON MANGO STREET
Authors: ÇETİN Gülsüm Tuğçe , KOÇSOY F.gül
Published: April 2020

This article deals with Sandra Cisneros’s (1954 – ) novel The House on Mango Street (1984) in terms of Chicana feminism, which emerged as a reaction against the male-dominated structure of Chicano Movement. In this sense, Cisneros’s novel can be regarded as a narration of how the Chicano society is built upon mythical constructions of gender roles, the paralyzed consciousness of women. The protagonist of the novel, Esperanza becomes aware of these myths in her society by observing the wrongful behaviors of both women and men and realizes these fossilized values, which suppress the women both spatially and intellectually. She sees that the women are treated like commodities and sexual objects and decides to react and find a new way to reconstruct the community.
Cisneros reflects the constructed women images in the microcosmic Mango Street and her stand against this corrupted consideration. As a way of breaking the constructed roles, she implies awareness, remedy, change, and action for the women.
PENGARUH MODEL PEMBELAJARAN PICTURE AND PICTURE TERHADAP HASIL BELAJAR GEOGRAFI
Authors: Fadjarajani Siti , Rosali Ely Satiyasih , Noerdianasari Widyanti
Published: April 2020

Penelitian ini dilakukan di kelas X IPS sebuah SMA Negeri di Kabupaten Ciamis dengan tujuan untuk mengetahui pengaruh penggunaan model pembelajaran kooperatif type picture and picture terhadap peningkatan hasil belajar peserta didik. Metode yang digunakan adalah quasi eksperimen dengan model pre-test post-test control group design. Analisis data dilakukan dengan menghitung nilai t. Hasil penelitian menunjukkan bahwa penggunaan model pembelajaran kooperatif tipe picture and picture memberikan pengaruh yang signifikan terhadap hasil belajar domain kognitif peserta didik (thitung > ttabel). Diperlukan penggunaan model pembelajaran yang lebih bervariasi lagi agar peserta didik lebih aktif dan memiliki penerimaan lebih baik terhadap materi yang disampaikan sehingga berkontribusi terhadap peningkatan hasil belajar dan pencapaian KKM yang ditetapkan.
SUBKULTUR DAN FAKTOR-FAKTOR BIOGRAFIS MAHASISWA DALAM KEHIDUPAN DI PERGURUAN TINGGI
Authors: Astuti Indri
Published: April 2020

Penelitian ini bertujuan untuk memeroleh gambaran kecenderungan pengelompokan subkultur mahasiswa dalam memandang perguruan tinggi, dan desain layanan informasi orientasi nilai tentang perguruan tinggi. Metode yang digunakan adalah survei, di 2 angkatan pada empat program studi di Universitas Tanjung Pura Pontianak, yaitu studi Bimbingan dan Konseling, PG-PAUD, Pendidikan Bahasa Mandarin dan Pendidikan Sosiologi FKIP. Partisipan berjumlah 224 mahasiswa berasal dari keempat program studi dari angkatan 2018 dan 2019. Hasil penelitian menunjukkan, bahwa (1) biografis mahasiswa mempunyai kecenderungan subkultur mulai dari politik, berikutnya vokasional, akademik, non-konformis dan kolegial. (2) subkultur mahasiswa secara keseluruhan berada pada kategori sedang, (3) ada perbedaan subkultur mahasiswa di antara dua angkatan dalam memandang perguruan tinggi, (4) desain ADDIE sebagai layanan informasi orientasi nilai tentang perguruan tinggi. Penelitian ini merekomendasikan untuk mengoptimalkan peran dosen Pembimbing Akademik, dan (2) Unit layanan bimbingan dan konseling FKIP maupun pusat bimbingan dan konseling dalam melaksanakan kegiatan pembinaan kemahasiswaan.
Lesson Studi Pembelajaran Outdoor learning Bagi Guru Sekolah Dasar
Authors: Wijayanti Astuti , Munandar Aris
Published: April 2020

The environment is the largest natural laboratory in science learning. However, unfortunately, this potential has not been utilized properly. Most science learning is often carried out in the classroom. Therefore, through community service, it is expected to help the difficulties of teachers in planning and implementing outdoor learning in science learning in accordance with the standards of the educational process. This service was carried out for 8 months using the lesson study model through three stages, namely plan (plan), do (implement) and see (reflect) carried out by elementary teachers. The results of dedication show that lesson studies conducted in both elementary schools can provide good service for elementary school teachers in preparing lesson plans and can improve the ability of elementary school teachers in preparing RPP based on outdoor learning processes so that teachers can carry out learning with a new, pleasant, challenging atmosphere and teach.
Identifikasi Mindset Kewirausahaan Masyarakat Daerah Semau – Nusa Tenggara Timur
Authors: Rachmawati Dyna , Tulipa Diyah , Srianta Ignatius , Ellitan Lena , Joewono Andrew , Rahayu Mudjilah
Published: April 2020

Produksi jambu gondangmanis setiap tahunnya mengalami penurunan, hal ini disebabkan serangan hama dan penyakit tanaman, akibat menurunnya kualitas lahan, dan kesuburan tanahnya.Selain itu belum adanya teknik budidaya yang baik sehingga jambu Gondangmanis hanya tumbuh secata konvensional saja. Tujuan dari kegiatan ini, untuk program pendampingan, pelatihan dan pengembangan jambu Gondangmanis menjadi desa wisata petik jambu.Pelaksanaan Kegiatan dimulai April 2019 sampai Agustus 2019, di Desa Gondangmanis, kec. Bandar kedungmulyo, Jombang.Metode yang di gunakan adalah demplot budidaya, dan indept interview.Hasil pendampingan di tahun ke 3 ini, dapat disimpulkan bahwa telah di lakukan pendampingan, pelatihan dan budidaya produksi jambu Gondangmanis.Partisipasi masyarakat, khususnya yang terlibat dalam kegiatan pengembangan jambu, dan pemanfaatan limbah ternak sangat tinggi. Demikian pula dukungan dari tokoh masyarakat dan perangkat desa serta tingkat kecamatan sangat mendukung.  Juga telah di rintis terbentuknya wisata kampung jambu Gondangmanis.Telah terbentuk kelompok Masyarakat jambu Gondangmanis dan Kelompok Sadar Wisata (POKDARWIS).Peran Dinas Pertanian dan Peternakan juga Bappeda Pemerintah Daerah Kabupaten Jombang juga sangat tinggi, karena selama proses persiapan dan koordinasi selalu mendapat perhatian dari pimpinan Pemda, terbukti dengan terbentuknya wisata unggulan jombang.
Budidaya Sayur Secara Hidroponik dan Ikan Lele dengan Teknologi BioMaxi untuk Memupuk Jiwa Enterpreneurship
Authors: Rosmaiyadi Rosmaiyadi , Fitriyadi Slamat , Triani Susan Neni
Published: April 2020

Developing entrepreneurship for the students should be done starting from of primary and secondary education. The major obstacles experienced by the school in general are not the inclusion of entrepreneurial material in the curriculum contained in the school subjects. Similarly, the partner in this case MTs Al Fatah Singkawang. The constraints that the partners of the community service Program are the limitation of capital (cost), human resources, technology and also the location of land that is narrow enough to implement activities for students. Program activities are conducted with hydroponic vegetable cultivation and catfish cultivation with Bioflok technology which is carried out by 30 students MTs Al Fatah and also involve the practitioners of hydroponic vegetable cultivation and also fish farming practitioners Catfish with Bioflok system. This activity was held from May 2019 until December 2019. Hydroponic vegetable farming and catfish cultivation activities with Bioflok technology started with the preparation of cultivation media until the process of cultivation. Results show that students can already practice vegetable cultivation in hydroponics and fish farming with BIOMAXI technology and this activity plays a major role in cultivating the entrepreneurship of students.
Maternal and neonatal outcome of births planned in alongside midwifery units: A cohort study from a tertiary center in Germany
Authors: Merz Waltraut Maria , Tascon-Padron Laura , Puth Marie-Therese , Heep Andrea , Tietjen Sophia L. , Schmid Matthias , Gembruch Ulrich
Published: April 2020

Background For healthy women entering birth after uneventful pregnancy, midwife-led models of care have the potential to reduce interventions and increase the vaginal birth rate. In Germany, 98.4% of women are giving birth in consultant-led obstetric units. Alongside midwifery units (AMU) have been established in 2003. We compared the outcome of women registered for planned birth in the AMU at our hospital with a matched group of low-risk women who gave birth in standard obstetric care during the same period of time. Methods We used a retrospective cohort study design. The study group consisted of all women admitted to labor ward who had registered for birth in AMU from 2010 to 2017. For the control group, low-risk women were selected; additionally, matching was performed for parity. Mode of birth was chosen as primary outcome parameter for the mother. For the neonate, a composite primary outcome (5-minute Apgar <7 or umbilical cord arterial pH < 7.10 or transfer to specialist neonatal care) was defined. Secondary outcomes included epidural anesthesia, duration of the second stage of labor, episiotomy, obstetric injury, and postpartum hemorrhage. Non-inferiority was assessed, and multiple logistic regression analysis was performed. Results 612 women were admitted for labor in AMU, the control group consisted of 612 women giving birth in standard obstetric care. Women in the study group were on average older and had a higher BMI; birthweight was on average 95 g higher. Non-inferiority could be established for the primary outcome parameters. Epidural anesthesia and episiotomy rates were lower, and the mean duration of the second stage of labor was shorter in the study group; second-degree perineal tears were less common, higher-order obstetric lacerations occurred more frequently. Overall, 50.3% of women were transferred to standard obstetric care. Regression analysis revealed effects of parity, age and birthweight on the chance of transfer. Conclusion Compared to births in our consultant-led obstetric unit, the outcome of births planned in the AMU was not inferior, and intervention rates were lower. Our results support the integration of AMU as a complementary model of care for low-risk women.