bluuebunny/crossref_metadata_2025 huggingface dataset:
Entornos virtuales para el aprendizaje: una mirada desde la teoría de los campos conceptuales
Authors: Araque Iralí , Montilla Lissette , Meleán Ramón , Arrieta Xiomara
Published: February 2018

La inclusión de las tecnologías de la comunicación e información con fines formativos ha dado paso a los entornos virtuales de aprendizaje, los cuales, respaldados por teorías constructivistas, brindan un marco teórico y metodológico, contribuyendo así al desarrollo cognitivo de los estudiantes a nivel universitario, puesto de manifiesto en el desarrollo de sus esquemas de aprendizaje. La teoría de los campos conceptuales ofrece un análisis acerca de los elementos de los esquemas y del proceso de construcción de conocimientos. En este sentido, el presente trabajo tuvo como objetivo plantear algunos elementos, como la metodología de enseñanza, estrategias didácticas, materiales y recursos para el aprendizaje, roles del profesor y del estudiante, que deben considerarse en el diseño de los entornos virtuales de aprendizaje, a la luz de la teoría de los campos conceptuales, de modo que se potencie la construcción de conocimientos y donde el énfasis del proceso educativo recaiga sobre el aprendizaje más que en la enseñanza. La metodología utilizada es documental, de tipo descriptivo, fundamentada en la revisión y análisis bibliográfico de teorías constructivistas, así como investigaciones referidas al diseño y construcción de entornos virtuales de aprendizaje. Los resultados muestran que la teoría de los campos conceptuales es una excelente opción a considerar, como teoría constructivista, a fin de consolidar el proceso de construcción de conocimientos, desde lo individual hasta lo colectivo.
Uma análise do tema interdisciplinaridade nas principais revistas brasileiras de ensino de ciências
Authors: Carneiro Guilherme Do Amaral , Cardoso Ferreira Carlos Roberto , Pansera Fernanda Cristina , Beduschi Rian Stenico
Published: February 2018

La discusión sobre interdisciplinariedad está presente en el ámbito de la Educación hace mas de 30 años y ha repercutido en el área de Enseñanza de las Ciencias. A pesar de los diversos trabajos publicados en las principales revistas brasileras del área, aún existen vacíos sobre informaciones complementarias de investigaciones que relacionen la interdisciplinariedad con la Enseñanza de las Ciencias. Con el propósito de llenar algo de este vacío, realizamos un estudio cuyo objetivo fue identificar tales perspectivas en artículos de las principales revistas del área en el Brasil. Utilizamos los términos de interdisciplinariedad e interdisciplinar como descriptores en los títulos, resumenes y palabras clave para seleccionar los artículos analizados. Fue posible constatar que los estudios se concentran en la educación básica y tratan principalmente de cuestiones relacionadas al currículo. Se destacan las áreas de enseñanza de la física y biología, así como las perspectivas ciencia-tecnología-sociedad-ambiente (CTSA) y educación ambiental. Los datos también apuntan hacia un panorama de contraste entre la diversificación y la disminución de las investigaciones que relacionan la enseñanza de las ciencias con la interdisciplinariedad.
Desarrollo del conocimiento tecnológico y pedagógico del contenido de la química, de profesores en formación a través de la reflexión de los PaP-eRs y videos
Authors: Candela Boris Fernando
Published: February 2018

En este artículo se describió cómo los profesores en formación identificaron y desarrollaron algunos elementos del conocimiento tecnológico y pedagógico del contenido de la química (CTPC), a lo largo del curso de contexto educativo y pedagógico por “orientación reflexiva”. La perspectiva metodológica fue cualitativa por estudio de casos, la cual estuvo configurada por dos ámbitos de reflexión entretejidos, a saber: a) reflexión sobre las opiniones de los expertos acerca de la enseñanza de un contenido, a través de las lecturas propuestas en los programas de formación, y b) reflexión acerca de la enseñanza, llevada a cabo por profesores experimentados por medio de videos de caso y repertorio de experiencias profesionales y pedagógicas (PaP-eRs). Esta heurística redujo la complejidad de la enseñanza en una historia manejable situada en un contexto específico, para que los profesores pudieran identificar y reflexionar sobre sus teorías acerca de la enseñanza y aprendizaje de la química. El estudio evidenció que los profesores en formación identificaron y desarrollaron los siguientes elementos del CTPC de la química: la pedagogía general, el lenguaje como una herramienta de aprendizaje, las dificultades y concepciones alternativas, el conocimiento de la tecnología como un instrumento para representar los contenidos y gestionar el aula de química, y la evaluación formativa. Definitivamente, la reflexión de los eventos críticos de los PaP-eRs y videos de caso fue considerada una heurística apropiada que les permitió a los futuros profesores articular el conocimiento proveniente de la literatura en educación en química, con las experiencias virtuales de enseñanza/aprendizaje procedentes de un contexto real. Desde luego, dicha reflexión estuvo mediada por la lectura y discusión de las acciones inteligentes de un docente ejemplar cuando orienta a unos estudiantes singulares desde una perspectiva sociocultural, con el propósito de comenzar a refinar sus teorías de la enseñanza y aprendizaje de la química.
XX Semana de la Enseñanza de la Física
Authors: Infante Luna Esperanza Del Pilar , Camacho Beltrán Ángela Stella , Manogue Corinne A. , Monroy Ignacio Alberto , Varela Karla , Dray Tevian , Araujo Juan Carlos , Murcia Correa Stefany , Giraldo-Gallo Paula , Herrera William , Herrera Edwin , Avilán Vargas Nicolás , Castiblanco Olga L. , Calderón Triana Clara Lilia , Cadavid Doris , Fonseca Y. , Garibello B. , Avilán N. , Herreño César , Bóhorquez O. , Ramos Bonilla Mayra Alejandra , López Segura Claudia Patricia , Calderón Vanegas Wilson Camilo , Morales J. , Mejía G. , Paredes C. , Mancera M. , Hernández D. , García-Farieta J.E. , Laserna H. , Silva S. , Hurtado A. , Reyes J. , Montaña Daniel , Cajamarca D. A. , Villamil S. , Munévar E. , Calderón G. , Buitrago C. , Roncancio M. , Espinosa Camilo , Padilla Juan Nicolás , Mera D. , Ayala C. , Santiesteban Herley , Pardo C. , Laserna H. , Hernández Daniel Francisco , Mancera Mateo , García-Farieta J.E. , Rubiano Joan , Rodríguez A. , Quiroga Paola , Salazar Deisy , Rivera L. , Salazar Deisy , Rivera L. , Romero J. , Hernández A. , Quevedo Y. , Infante P. , García María Fernanda , Salas J. , Ortega C. , Gualteros Erick , Avilan Nicolás , Arias D. , Roncancio Edwin , España B. , Prieto Diego , Ramírez Mayra , Peña L. , Rodríguez R. , Hernandez J. , Dominguez T. , Farfán C. , Guataquirá José Efraín , Torres J. N. , Calderon E. , Mendoza I. , Rojas G. , Vizcaíno Diego Fernando , De la rosa R.
Published: February 2018

25 a 29 de septiembre de 2017Facultad de Ciencias y EducaciónProyecto Curricular de Licenciatura en FísicaUniversidad Distrital Francisco José de Caldas
Investigation of different concentrations of MS media effects on gene expression and steviol glycosides accumulation in Stevia rebaudiana Bertoni
Authors: Kahrizi Danial , Ghaheri Matin , Yari Zahra , Yari Khirollah , Bahraminejad Sohbat
Published: February 2018

Stevia rebaudiana Bertoni is one of two species that contains steviol glycosides. Among steviol glycosides that extracted from leaves, stevioside and rebaudioside A are the two major and the sweetest glycosides that are about 200-300 times sweeter than sucrose with zero calories. The best method for stevia propagation is tissue culture. So, for investigation of nutrients in medium, we studied the effect of different concentrations of MS media (MS, 0.5 MS, 0.25 MS, 0 MS) on morphological traits, UGT74G1 and UGT76G1 genes expression and accumulation of steviol glycosides in stevia leaves. The best growth rate (0.472 mm/d) has occurred in plants grown in MS media. Also, the highest gene expression of UGT74G1 gene (1.000 Total lab unit) was seen under MS treatment. However, the highest expression level of UGT76G1 gene (1.701 Total lab unit) was observed at plants grown in 0 MS. The highest amount of both Stevioside and Rebaudioside A (14.23 and 8.12, respectively) were accumulated in plants under MS treatment. Obviously, dilution of MS media associated with decreasing in both expression of the intended genes and accumulation of steviol glycosides.
Effects of Whole-Body Vibration Versus Pilates Exercise on Bone Mineral Density in Postmenopausal Women: A Randomized and Controlled Clinical Trial
Authors: de Oliveira Laís Campos , de Oliveira Raphael Gonçalves , de Almeida Pires-Oliveira Deise Aparecida
Published: February 2018

Background and Purpose:

Decreased bone mineral density (BMD) is a common condition in postmenopausal women that can be managed with impact activities. Among the activities studied are the whole-body vibration (WBV) and muscle-strengthening exercises. The purpose of this study was to compare the effects of WBV versus Pilates exercise on BMD in postmenopausal women.

Methods:

In this study, 51 postmenopausal women were randomized into 3 groups: vibration (n = 17), Pilates (n = 17), and control (n = 17). Outcomes were the areal bone mineral density (aBMD) (lumbar spine, femoral neck, total hip, trochanter, intertrochanter, and ward's area) assessed by dual-energy x-ray absorptiometry at baseline and follow-up. The interventions were performed 3 times a week for 6 months, totaling 78 sessions. The analysis was performed with intention-to-treat and covariance analyses adjusted for baseline outcomes.

Results:

After 6 months, 96.1% of the participants completed the follow-up. The analyses demonstrated significant mean between-group differences in favor of the interventions: vibration versus control, for the aBMD of the lumbar spine (0.014 g/cm2; 95% confidence interval [CI], 0.006-0.022; P = .018, d = 1.21) and trochanter (0.018 g/cm2; 95% CI, 0.006-0.030; P = .012, d = 1.03); and Pilates versus control, for the aBMD of the lumbar spine (0.016 g/cm2; 95% CI, 0.007-0.025; P = .008, d = 1.15) and trochanter (0.020 g/cm2; 95% CI, 0.010-0.031; P = .005, d = 1.28).

Conclusion:

In postmenopausal women, 3 weekly sessions of WBV or Pilates administered for 6 months provided an equal effect on BMD.
Adipokine expression and endothelial function in subclinical hypothyroidism rats
Authors: Gong Ningning , Gao Cuixia , Chen Xuedi , Wang Yu , Tian Limin
Published: February 2018

The purpose of our study was to observe adipokine expression and endothelial function in subclinical hypothyroidism (sHT) rats and to determine whether levothyroxine (LT4) treatment affects these changes. Sixty-five male Wistar rats were randomly divided into five groups: the control group; sHT A, B and C groups and the sHT + T4 group. The sHT rats were induced by methimazole (MMI) and the sHT + T4 rats were administered LT4 treatment after 8 weeks of MMI administration. Thyroid function and lipid levels were measured using radioimmunoassays and enzymatic colorimetric methods, respectively. Serum adiponectin (APN), chemerin, TNF-α, endothelin (ET-1) and nitric oxide (NO) levels were measured using ELISA kits and a nitric-reductive assay. The expression of APN, chemerin and TNF-α in visceral adipose tissue (VAT) was measured in experimental rats using RT-PCR and Western blotting. Hematoxylin–eosin (HE) staining was used to observe changes in adipose tissue. The sHT rats had significantly higher levels of thyroid-stimulating hormone (TSH), TNF-α, chemerin, ET-1, total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) and lower levels of APN and NO than those in control and sHT + T4 rats. Based on Pearson correlation analysis, the levels of chemerin, TNF-α, ET-1, LDL-C, TC and triglyceride (TG) were positively correlated with TSH, but APN and NO levels were negatively correlated with TSH. These findings demonstrated that high TSH levels contribute to the changes of adipokines and endothelial dysfunction in sHT, but LT4 treatment ameliorates those changes.
Families’ Experiences With Pediatric Family-Centered Rounds: A Systematic Review
Authors: Rea Kelly E. , Rao Priyanka , Hill Elizabeth , Saylor Kate M. , Cousino Melissa K.
Published: February 2018

CONTEXT:

Family-centered rounding (FCR) is of increasing importance in pediatric medicine. Although researchers have begun to understand the effect of FCR on providers and systematic health care outcomes, we provide a systematic review of the literature regarding families’ experiences with FCR.

OBJECTIVE:

To systematically review patient and family experiences with pediatric FCR.

DATA SOURCES:

Our data sources included PubMed, Cumulative Index to Nursing and Allied Health Literature, PsycINFO, Scopus, and Embase.

STUDY SELECTION:

Inclusion criteria included publication in a peer-reviewed journal between January 2007 and February 2017, written in the English language, pediatric population (patients 0–21 years), and specific measurement of a families' experience with FCR.

DATA EXRACTION

Data extracted were sample size, participating medical unit, measures of family experience, and overall results of family experience.

RESULTS:

Twenty-eight studies were included. It is unclear whether participation in FCR increases family satisfaction compared with standard rounds; however, families report a strong desire to participate in FCR. Family benefits of FCR included increased understanding of information and confidence in the medical team, as well as reduced parental anxiety.

LIMITATIONS:

There were only 2 studies in which researchers examined pediatric patients’ experiences with FCR, and literature on the communication needs of non–English-speaking families was also limited.

CONCLUSIONS:

Overall, it is suggested that families positively perceive their experience with FCR, although more research is needed to determine if satisfaction is greater in FCR versus standard rounds as well as to better understand different perspectives of adolescent patients and non–English-speaking families.
Construyendo la apoteosis: la consolidación de la ceremonia de poder en Costa Rica (1940-1949)
Authors: Díaz González José Andrés
Published: February 2018

Durante la década de 1940, las ceremonias de toma de poder en Costa Rica seconsolidan como un ritual político que permite al nuevo grupo gobernante obtenerlegitimidad y notoriedad, por medio de la escenificación del poder. Asimismo, seobserva cómo estas ceremonias adquieren un carácter de celebración cívica y facilitanel proceso de conciliación nacional tras la lucha por el control del poder político.Palabras claves: historia, ritual político, fiestas cívicas, imaginarios políticos.
Theatrical inauguration of a parallax view: intertextually - mediated communal memory in Borges’s “Tema del traidor y del héroe”
Authors: Bahena Urióstegui Mario
Published: February 2018

This article analyzes the mediation of historical events in “Tema del traidor y del héroe” by Jorge Luis Borges, wherein decisive revolutionary successes are the results of a staged performance—the dramatized execution of independence leader Fergus Kilpatrick. Bymixing theater and history, Borges overcomes historical representation in terms of the binaries true/false and real/fiction. This article argues that the historical reality initiated by this performance is the result of an incessant literary mediation. Literature, specifically Festspiele and Shakespearean plays, helped establish a parallax view of the historical events and became the vehicle to validate them as ontological reality. Thus, the historical events, performed or otherwise, are inherently accompanied by literature, having the latter enlighten the former.When Ryan, the main character, discovers the historical theatricality, he also discovers that he cannot change the social significance of the historical events, and himself becomes a part of the historical narrative.
Comentario al libro: Días-Arias, David, (2015). Crisis social y memorias en lucha: Guerra Civil en Costa Rica (Colección Historia de Costa Rica), Editorial de la Universidad de Costa Rica
Authors: Raventós Vorst Ciska
Published: February 2018

Sin resumen
FDA Approval Summary: Dabrafenib and Trametinib for the Treatment of Metastatic Non-Small Cell Lung Cancers Harboring BRAF V600E Mutations
Authors: Odogwu Lauretta , Mathieu Luckson , Blumenthal Gideon , Larkins Erin , Goldberg Kirsten B. , Griffin Norma , Bijwaard Karen , Lee Eunice Y. , Philip Reena , Jiang Xiaoping , Rodriguez Lisa , McKee Amy E. , Keegan Patricia , Pazdur Richard
Published: February 2018

On June 22, 2017, the Food and Drug Administration expanded indications for dabrafenib and trametinib to include treatment of patients with metastatic non-small cell lung cancer (NSCLC) harboring BRAF V600E mutations. Approval was based on results from an international, multicenter, multicohort, noncomparative, open-label trial, study BRF113928, which sequentially enrolled 93 patients who had received previous systemic treatment for advanced NSCLC (Cohort B, n = 57) or were treatment-naïve (Cohort C, n = 36). All patients received dabrafenib 150 mg orally twice daily and trametinib 2 mg orally once daily. In Cohort B, overall response rate (ORR) was 63% (95% confidence interval [CI] 49%–76%) with response durations ≥6 months in 64% of responders. In Cohort C, ORR was 61% (95% CI 44%–77%) with response durations ≥6 months in 59% of responders. Results were evaluated in the context of the Intergroupe Francophone de Cancérologie Thoracique registry and a chart review of U.S. electronic health records at two academic sites, characterizing treatment outcomes data for patients with metastatic NSCLC with or without BRAF V600E mutations. The treatment effect of dabrafenib 150 mg twice daily was evaluated in 78 patients with previously treated BRAF mutant NSCLC, yielding an ORR of 27% (95% CI 18%–38%), establishing that dabrafenib alone is active, but that the addition of trametinib is necessary to achieve an ORR of >40%. The most common adverse reactions (≥20%) were pyrexia, fatigue, nausea, vomiting, diarrhea, dry skin, decreased appetite, edema, rash, chills, hemorrhage, cough, and dyspnea.

Implications for Practice

The approvals of dabrafenib and trametinib, administered concurrently, provide a new regimen for the treatment of a rare subset of non-small cell lung cancer (NSCLC) and demonstrate how drugs active for treatment of BRAF-mutant tumors in one setting predict efficacy and can provide supportive evidence for approval in another setting. The FDA also approved the first next-generation sequencing oncology panel test for simultaneous assessment of multiple actionable mutations, which will facilitate selection of optimal, personalized therapy. The test was shown to accurately and reliably select patients with NSCLC with the BRAF V600E mutation for whom treatment with dabrafenib and trametinib is the optimal treatment.
Measured temperature and shrinkage effects on a 90 m long integral bridge in South Africa
Authors: Skorpen Sarah A. , Kearsley Elsabe P. , Kruger Edwin J.
Published: February 2018

The Van Zylspruit River Bridge is a 90 m long, fully integral bridge located on the South African National Roads Agency SOC Ltd national N1 route. It is a situated in central South Africa, an area known for its harsh climate, with both high and low temperatures. The bridge has been extensively instrumented to measure environmental and material property effects on the structural behaviour. The instrumentation was installed during construction and data have been logged continually from the construction phase onwards. In this paper, the results from the first phase of the monitoring project with regard to the measured effects of temperature variation and concrete shrinkage are outlined and the effects of these environmental effects on the structure are discussed. The results of the research should help to quantify the effect of temperature and shrinkage on the behaviour of the bridge and point towards how future designs should be approached, in particular how environmental and material property factors should be taken into account in the design and construction of longer integral bridges with specific reference to South African conditions.
Assessment of new Korean site classification and design response spectra
Authors: Sun C.-G. , Cho H.-I , Kim H.-S. , Kim D.-S.
Published: February 2018

A site classification scheme and design response spectra (DRS) were implemented in July 2017 as a part of new minimum requirements for general seismic design in Korea. However, verification using the 2016 Gyeongju earthquake, the largest earthquake in the history of instrumental seismic observation in Korea, was not conducted due to the schedule limitations of the public hearing process. In this study, site classification schemes and corresponding DRS curves were compared with the 2016 Gyeongju earthquake records to assess the superiority of the new code compared with other Korean seismic design codes. Seismic stations were categorised into relevant site class according to each seismic design code based on the subsurface geotechnical information at the stations, and the earthquake records were gathered depending on the site class. Finally, response spectra were converted and compared with the corresponding DRS curve given by each seismic design code. The comparisons reveal that the classification scheme and DRS included in the new Korean requirements accurately reflect as-measured conditions and yield more reliable results than other Korean codes.
Experimental study on Katz–Thompson model for concrete materials and determination of K–T constant
Authors: Guan Xinchun , Miao Lianjuan , Lu Rongwei , Zhao Shengying
Published: February 2018

To illustrate the applicability of the Katz–Thompson model for concrete materials and determine the K–T constant in the Katz–Thompson equation, pore structure parameters closely related to transport properties were analysed. Pore structure parameters, such as porosity, pore size distribution, character aperture and tortuosity, were measured and interpreted by mercury intrusion porosimetry. Percolation porosity and hydraulic diameter, as pore structure parameters closely related to percolation property, were used in the Katz–Thompson equation for concrete materials. The gas permeability of 48 concrete specimens was determined and corrected using the Klinkenberg effect to obtain the intrinsic permeability experimentally. The K–T constant was calculated by comparing the permeability predicted using the Katz–Thompson equation and the permeability obtained through permeability tests. It was found that the Katz–Thompson model can be applied in concrete materials. The K–T constants were found not to be fixed for concrete materials but to be closely related to the water/binder ratio; a linear relation between K–T constant and water/binder ratio was proposed.
Liquefaction flow slides in large flumes
Authors: De Groot Maarten B. , Lindenberg Jaap , Mastbergen Dick R. , Van den Ham Geeralt A.
Published: February 2018

Liquefaction flow slides in sand have been investigated during an extensive experimental research programme during the period 1973–1977 on behalf of the design of the storm surge barrier in the Oosterschelde estuary. The programme included more than a hundred tests in large- and medium-sized flumes on submerged, loosely packed sand bodies. Each sand body had a horizontal surface and a very steep, supported slope as initial boundaries. Retrogressing liquefaction flow slides with high retrogression velocity and large retrogression distance occurred in several tests with very loosely packed sand. Retrogression velocities and distances in the other tests were just a fraction of those in first mentioned tests, although liquefaction occurred in some of them. The test set-up, measurements and results of the tests are described in this paper. An interpretation of the liquefaction flow slide process as a sequence of several interacting sub-processes is presented as well. Finally, tentative scaling rules are given and compared with observations.
Tarımsal ürün bilgilerinin bir gezgin robot yardımıyla temin edilen görüntülerin işlenmesi yoluyla analiz edilmesi
Authors: TURAN Sedat , AYDIN Tolga
Published: February 2018

Robotik sistemlerin bir çeşidi olan gezgin (mobil)
robotların kullanımı, günlük yaşamımızın farklı alanlarında gelişerek arttığı
görülmektedir. Bu çalışmada, görüntü işleme yöntemi ile tarımsal ürün
bilgilerinin analiz edilmesi için gezgin robotik sistemin kullanılması ve
sistem kurulması aşamasında ortaya çıkabilecek problemlerin çözüm yollarının
belirlenmesi amaçlanmıştır. Kablosuz veri iletimi kullanılarak gezgin robot
üzerinden gönderilen görüntü,  ortam
sıcaklığı ve nem verileri kullanıcı tarafına aktarılmıştır. Böylece, kullanıcı
tarafında görüntü işleme yöntemlerinden faydalanılarak geliştirilen yazılım
sayesinde görüntü verilerinden bazı bilgiler elde edilmektedir. Görüntü işleme
tekniklerinin kullanıldığı yüz tanıma ve ürün bilgisi analiz denemelerinde
gezgin robot üzerindeki kameranın kalitesi, ortam aydınlatması, gölgelenme,
ürünlerin fiziksel yapıları ve yüz eğitim sayısı robotik sisteme doğrudan
etkisi olduğu anlaşılmıştır. Araştırma sonucunda robotik sistemin arazide rahat
hareket edebilmesi için hareket sisteminde kullanılan mekanik yapının sanayi
tipinde olması gerektiği görülmüştür.
Numerical Analysis of Flow Around Bluff Bodies with 4th and 2nd order compact formulations
Authors: ASLAN Erman , İNAN İlker , KANDEMİR İlyas , GÜVEN Hasan Rıza
Published: February 2018

In the present study, fourth-order compact
formulation has been improved for Navier-Stokes (N-S) equations, which is
expressed for two-dimensional, steady, incompressible flow problems. N-S
equation system has been expressed with Stream Function-Vorticity Approach
using Finite Difference Method (FDM) from the numerical methods. In order to test the functionality and
applicability of the improved numerical formulation, a sample for submerged
bluff bodies, flow problem around cylinder with square cross-section was chosen
as a benchmark problem. As a result of applying improved numerical formulation
with Gauss-Seidel Relaxation Method was used for this benchmark problem. The benchmark problem was also solved
with second-order accuracy and obtained numerical results were compared with
fourth-order accuracy numerical results. With the same Reynolds Number and the
same free-stream velocity values, fourth-order numerical results are more
convergent than second-order numerical results. Furthermore, in the flow field
for considered benchmark problem, separation bubble length that consisted in
the wake region is increased proportionally depending on the alteration of the
Reynolds Number values.
Some Characterizations Of Surfaces Generated by Two Curves In Heis3
Authors: ALTAY SUROĞLU Gülden
Published: February 2018

In
this paper, some characterizations of 
surfaces which are constructed by using the group operation in  are given. Then, a new
classification for minimal factorable surfaces in  is obtained.
Rhodes University v Student Representative Council of Rhodes University: The constitutionality of interdicting non-violent disruptive protest
Authors: Abdool Karim Safura , Kruyer Catherine
Published: February 2018

Section 17 of the Constitution of the Republic of South Africa, 1996 enshrines the right to assemble, peacefully and unarmed, and the Regulation of Gatherings Act 205 of 1993 enables the exercise of this right peacefully and with due regard to the rights of others. The recent student protests across South Africa have occasioned litigation seeking to interdict protest action, which the universities claim is unlawful. Overly broad interdicts, which interdict lawful protest action, violate the constitutional right to assembly and have a chilling effect on protests. In a decision of the High Court of South Africa, Eastern Cape Division, Grahamstown, a final interdict was granted interdicting two individuals from, among other things, disrupting lectures and tutorials at Rhodes University and from inciting such disruption. In this note, the constitutionality of interdicting non-violent disruptive protest is discussed and analysed, using Rhodes University v Student Representative Council of Rhodes University and Others (1937/2016) [2016] ZAECGHC 141.
Protest protections, protest problems? Reflections from across the spectrum
Authors: Moult Kelley
Published: February 2018

This issue of South African Crime Quarterly is a special issue focusing on protest. It is guest edited by Kelley Moult of the Centre for Law and Society at the University of Cape Town.
Study of absorption spectra of organic light emitting materials (triphenyl
derivatives of amine): A quantum mechanical study
Authors: Deshmukh Jitendra Kumar P. , Trivedi Ankur , Kumar Deep , Kumar Devesh
Published: February 2018

Density Functional theory (DFT) is used to study the effect of substituents on the electronic and
optical property of organic light emitting material 1,3,5-tris(4’-(1’’- phenyl-benzimidazol-2’’-
yl)phenyl) amine (TPBB) and its derivatives (MeO-TPBB, Br-TPBB and Bu-TPBB ). TD –
DFT has been used to study the absorption spectra of these molecules. This study suggests that
each derivative of TPBB shows a UV – VIS spectra at slightly different frequency.
Convection in an Anisotropic Porous Medium with Temperature Dependent Viscosity and Throughflow under G-jittera
Authors: Bhadauria B. S. , Singh Ajay
Published: February 2018

In the present article, we study the combined effect of variable viscosity and throughflow in an
anisotropic porous media under gravity modulation by reducing the model equations into
Ginzgburg-Landau equation. A weakly non-linear stability analysis has been performed by
adopting power series expansion in terms of the amplitude (assumed to be small) of gravity
modulation. The Nusselt number is obtained in terms of the amplitude for the stationary mode of
convection. Heat transfer mechanism is done by Nusselt number by taking different parameters,
and depicted it graphically. Further, it is found that on increasing the value of thermo-rheological
parameter, heat transport is more in the system. An increment in the amplitude (frequency) of
gravity modulation enhances (diminishes) the heat transport. The behavior of Vadasz number,
anisotropic parameters, and Peclet number are also studied.
Weak nonlinear rotating Bénard convection with modulation using Ginzburg- Landau model
Authors: Kiran Palle , Bhadauria B. S.
Published: February 2018

This article theoretically investigates the effect of modulated rotation speed on rotating Rayleigh-
Bénard convection. The Rayleigh-Bénard momentum equation with Coriolis term has been used
to describe the fluid flow in the medium. The system is consider to rotate about vertical axis with
non-uniform rotational speed consisting of steady and time dependent parts. In particular, we
assume that the rotation speed i.e time dependent part is varying sinusoidally with time. A
nonlinear stability analysis has been performed to find the effect of modulation on heat transport.
The heat transfer quotient, Nusselt number obtained in terms of amplitude and frequency of
modulation, and depicted graphically with respect to slow time, showing the effect of various
parameters of the system on heat transport. It is found that the effect of rotation speed modulation
is to stabilize or destabilize the system depending on the amplitude and frequency of modulation.
The corresponding streamlines and isotherms are presented at different states of slow time .
Impact of Drudgery Reducing Technologies among Farmwomen of Gorakhpur and Deoria districts of U. P.
Authors: Chaudhary R. C. , Mishra S. B. , Kumar Sunil , Yadav S. K. , Bala Rajni S. , Srivastava A. K.
Published: February 2018

The present study investigates awareness and adoption towards improved farm tools and
implements by the women farmers in Gorakhpur and Deoria districts of Uttar Pradesh. Data were
gathered from 200 women farmers through a well-structured questionnaire, focused group
discussion and personal interview. Findings revealed that women farmers use traditional tools
and implements since a long time but most of the women farmers felt immense drudgery in their
use. It was also found that most of the farmers were unaware of improved farm tools and
implements, which reduce drudgery. The results also suggested that the respondents were willing
to accept the information and subsequent use the improved tools and implements. This study
can provide scope for promotion of technology in gender perspective towards the challenges of
farmwomen would help in reducing drudgery and occupational health problems of women workers
in agriculture.
Efficacy and safety of a centrally acting analgesic flupirtine in primary knee osteoarthritis in comparison to tramadol: a randomized controlled trial
Authors: Goswami Tanmoy Kanti , Ghoshal Pradip Kumar , Hazra Avijit , Biswas Asish
Published: February 2018

Background: Osteoarthritis (OA) is a chronic, degenerative joint disorder responsible for considerable morbidity, particularly in old age. Flupirtine, a new centrally acting analgesic, is devoid of the adverse effects of NSAIDs and opioid analgesics. In this study author compared the effectiveness and safety of flupirtine with tramadol in knee OA.Methods: An open label, randomized, controlled trial was done with patients of primary knee OA of both sexes, age >50 years. Patients were recruited from Rheumatology OPD of SSKM Hospital. A minimum WOMAC score of 35 was essential for recruitment. Patients with serious comorbidities were excluded. They were treated orally with either flupirtine (100mg thrice daily) or tramadol (50mg thrice daily) for 12 weeks.Results: Ninety patients were recruited and data of 42 on flupirtine and 41 on tramadol were analysed. There was significant improvement in pain, stiffness and physical function compared to baseline in both the groups. However, there was no significant difference between groups at 4, 8 and 12 weeks. Responder rate (50% reduction in pain score from baseline) was 66.67% with flupirtine and 48.78% with tramadol (p = 0.122). Flupirtine caused 4 adverse events compared to 16 with tramadol. However, both the drugs were well-tolerated.Conclusions: The effectiveness of flupirtine in knee OA is comparable to tramadol, while causing minimal adverse effects. Long-term benefits need to be explored.
Clinical profile and outcome of early onset sepsis in high risk very low birth weight neonates
Authors: Shukla Omprakash S. , Rawat Aditi
Published: February 2018

Background: Neonatal sepsis is one of the main causes of mortality and morbidity, especially in very low birth weight neonates (birth weight <1499 grams) despite the progress in hygiene, introduction of new and potent antimicrobial agents for treatment and advanced measures for diagnosis. The aim of the study was to find correlation of clinical features and risk factors of neonatal sepsis in culture positive cases.Methods: A cross- sectional study was carried out in one hundred neonates with risk factors of septicemia after obtaining informed consent. Blood culture was done using Bactec Peds Plus/F Culture as a gold standard to diagnose septicaemia. Correlation of  risk factors, clinical features with laboratory findings was obtained by using chi-square test. p-value of less than 0.05 was considered as significant.Results: Out of 100 neonates with suspected sepsis, BACTEC culture proven sepsis was seen in 40% cases. Gram negative sepsis was seen in 62.5% cases. The most common bacteria for early onset sepsis were Klebsiella, Pseudomonas and MRSA contributing 17% each to the bacteriological profile. The most common predisposing factor and clinical feature in culture positive cases were Premature rupture of membrane >24 hours (67%) and bleeding/petechia/pupura (72%) respectively. The major cause of mortality was pulmonary hemorrhage.Conclusions: Gram negative organism were more common and associated with higher mortality. Blood culture positivity increases with increase in number of risk factors in neonatal septicemia. A detailed history and thorough clinical examination is vital for early recognition of sepsis.
El principe constante? Jan Lechoń and politics (after 1939)
Authors: Sobczak Paweł
Published: February 2018

In the article, I focuss on the theme of the political views of Jan Lechoń during his New York exile, which emerged in his literary work, letters, and Dziennik. The main elements of the political stance of the author of Srebrne i czarne were in that time: resolute anti-communism, critical assessment of the actions of the government in exile, his declared admiration for America, and a nostalgia for the interwar period (idealising Józef Piłsudski). The discussed views of the poet exerted a considerable influence on his personal life, which was proven by the politically motivated breaking off his long-time relations with Julian Tuwim. One important problem is where to locate Lechoń’s dissatisfaction with the political changes in Poland, which he stated often, within the reasons for his suicide.
Morphological variability and phylogenetic analysis in Common bean (Phaseolus vulgaris L.)
Authors: Razvi S. M. , Khan M. N. , Bhat M. Ashraf , Ahmad Mushtaq , Ganaie S.A. N. , Sheikh F. A. , Najeeb S. , Parry F. A.
Published: February 2018

Thirteen common bean (Phaseolus vulgaris) accessions collected from different ecological regions of Jammu and Kashmir were evaluated at four diverse locations during kharief 2009. Significant variation was observed for most of the morphological traits. Estimates of heritability (bs) were high (>60 %) for all the traits except pod length. The expected genetic gain (per cent of mean) was high (>30 %) for days to maturity, number of pods plant-1, number of seeds pod-1, 100-seed weight and seed yield plant-1 while it was moderate (10.0-30.0%) for days to 50 per cent flowering, number of branches plant-1, pod length and protein content. Seed yield plant-1 was observed to have a highly positive and significant correlation both at phenotypic and genotypic levels with number of pods plant-1, pod length, number of seeds pod-1 and 100-seed weight. But negative and significant correlations with days to 50 per cent flowering and days to maturity were estimated from pooled analysis. Classification of accessions led to the formation of two clusters wherein the maximum number 7 accessions were grouped in cluster I and the remaining six were grouped in cluster II. Analysis of traits contributing maximum to the divergence revealed that traits viz., 100-seed weight (37.10%), protein content (15.26%), number of seeds pod-1 (11.28%) and days to maturity (10.14%) to contribute to the divergence in the present experimental material.
Mineral contents of forage pea – triticale intercropping systems harvested at different growth stages
Authors: Asci Ozlem  Onal , Acar Zeki , Ariciy Yeliz Kasko
Published: February 2018

This study was conducted to determine the effects of mixture ratios and harvest times on mineral contents of forage pea – triticale mixtures hay. Leafed and semi-leafless pea (Pisum sativum L.) cultivars and triticale (xTriticosecale Wittmack) were sown in pure and in mixtures (75:25, 50:50, 25:75). Harvests were performed at boot and milk-dough stages of triticale. Experiments were conducted in randomized blocks design with 3 replications for 2 years. The data were subjected to ANOVA. Additionally, Pearson correlation coefficients were calculated between triticale ratios and quality parameters. 1n the first year at both harvest times of all mixtures; while Ca, Mg and Ca/P ratios decreased with increasing triticale ratios in mixture, K/(Ca+Mg) ratio increased with increasing triticale ratios in mixture ratio. Herbage mineral contents decreased with delaying harvest. It was concluded based on animal nutrition principles that triticale ratios of the mixtures should be limited and harvest should be performed at boot stage of triticale.
Fenugreek productivity and N and P balance sheet with varying fertilizer levels, biofertilizers and brassinosteroid in Typic Haplustepts
Authors: Godara A. S. , Singh Ravindra , Chouhan G. S.
Published: February 2018

A field study was carried out at Ajmer, Rajasthan with three fertilizer levels and three biofertilizer inoculations (Rhizobium, PSB and Rhizobium + PSB) in main plots and three concentrations of brassinosteroid ( BR) in sub-plots of a split plot design. 100 % RDF, co-inoculation of Rhizobium and PSB and BR 0.50 ppm produced a pooled seed and haulm yields of 2245 and 5236, 2085 and 4941, and 2098 and 4891 kg/ha, respectively, which were significantly superior to their preceding treatments. Interaction of fertility levels and biofertilizers was also found significant. A combination of 100 % RDF + dual inoculation, being on a par with 80 % RDF + dual inoculation, gave the highest seed, haulm and biological yield. Data on actual soil nitrogen and phosphorus status after crop harvest or E values (kg/ha) showed an improvement in both nutrients at 60 to 100 % RDF. Among different bio-fertilizer inoculations, the order of mean E values (kg/ha) for N were co-inoculation > Rhizobium > PSB but order for mean E values for P was co-inoculation > PSB > Rhizobium . Among brassinosteroid, the order for mean E values of N and P (kg/ha) was BR 0.50 ppm (170.09 and 8.88) > BR 0.25 ppm (168.37 and 8.80) > water spray (165.90 and 8.68). Data on actual mean gain or loss (G=E-initial soil nutrient status) of N and P showed a positive balance under all three kinds of treatments.
Evaluation of Pigeon pea (Cajanus Cajan L.) Genotypes for Nutritional Quality
Authors: Kachare D. P. , Satbhai R. D. , Rathod D. B. , Naik R. M.
Published: February 2018

An experiment was conducted for evaluation of proximate composition of 25 pigeon pea genotypes (Cajanus cajan L.)”differing in colour. The analysis revealed significant differences in the content of moisture (7.04-12.09%); crude protein (17.62- 25.45%); crude fat (1.41-2.93%); carbohydrate, (49.68-60.48) and ash (3.05-5.00%). Limiting amino acids viz tryptophan and methionine were ranged from 0.56-1.03 and 0.70-1.16 g/16g N respectively. The genotype PT-012-16 was found to be high in protein (25.45%), whereas the genotype PT-04-391 recorded the highest fat (2.93%). The higher tryptophan was observed in genotype PT-012-26 (1.03 g/16g N) whereas highest methionine content was recorded in PT-012-6 (1.16 g/16g N). All genotypes under study were found to be deficient in both the limiting amino acids tryptophan and methionine when compared with the WHO/FAO reference standard. This study revealed that the genotypes PT-012-9, PT-012-16 and PT-012-23 were found to be promising for future breeding programme for nutritional quality improvement.
Surrogacy: Pathway to Parenthood
Authors: Joseph Rachel A. , Rafanello Alexandria M. , Morris Cassidy J. , Fleming Kerry F.
Published: February 2018

Assistive reproductive technology has progressed significantly over the past few decades. In spite of the advances, people may still resort to a surrogate for bearing and birthing a baby. Surrogacy, though an altruistic act, has been commercialized in the past few years, leading to emergence of several ethico-legal concerns. Nurses care for the surrogates, the infants, and the intended parents through their journey with sensitivity, advocacy, compassion, and confidentiality. This article intends to explore the implications of surrogacy to individuals, families, nations, and health care.
Does Changing Newborn Bath Procedure Alter Newborn Temperatures and Exclusive Breastfeeding?
Authors: Suchy Carol , Morton Cyndi , Roy Ramos Rocky , Ehrgott Alexandra , Quental Megan Marie , Burridge Amanda , Rutledge Dana N.
Published: February 2018

This evidence-based practice project evaluated effects of changing timing/character of initial newborn baths on infant temperatures and breastfeeding status.

The hospital protocol for initial bathing procedures was updated: immersion baths; 12 hours postpartum; family included.

Staff nurse champions provided staff training. The evaluation included three seven-week periods (2016–2017) and three measures: adherence, temperature stabilization, and exclusive breastfeeding.

Of 1,205 38-week healthy newborns, 322 were born preimplementation (Pre), 486 after (Post), and 397 during maintenance (M). Adherence to bath timing increased and was maintained: 28 percent Pre; 83 percent Post; 85 percent M. Almost 100 percent of newborns had stable temperatures. Breastfeeding exclusivity rates did not change (ps greater than or equal to .05): baths less than 12 hours: 79 percent Pre, 74 percent Post, and 68 percent M; baths 12 hours: 68 percent Pre, 71 percent Post, and 73 percent M.

Changing bath time/character for healthy newborns maintained thermoregulation and exclusive breastfeeding rates. Nurses changed practice quickly, maintaining adherence over time.
Providing Equal Family-Centered Care in Every NICU
Authors: Discenza Deborah
Published: February 2018

Family-centered care is a constant buzzword in a NICU. However, there are consistent gaps in units across the country and beyond. Addressing this goes beyond a simple certification. That is where Sara Mosher, former NICU nurse, NICU manager, and NICU support specialist, steps in with an online course and community to support parents and ease the family-centered care strain on NICUs.
Entropi Kavramıyla Geçmişten Günümüze Helvetica'ya Bir Bakış ve Deneysel Tipografi
Authors: Akman Mustafa
Published: February 2018

Günümüzde popülerleşen entropi kavramının tanımlaması yapılıp temel ilkelerine değinerek tipografiyle olan ilişkisi göz önüne alınmıştır. Entropi kavramının diğer alanlarla birlikte incelenmesi, entropi ile diğer kavramlar arasında yeni bağların kurulmasını sağlamaktadır. Entropi kavramı

çerçevesinde Helvetica’nın tarihine bakarak, Helvetica yazı yüzünün değeri, anlamı, sorunları ve

konumu üzerine bir inceleme yapılmıştır. Kısaca Helvetica’nın entropisi hakkında bilgi verilmiş ve

daha sonra deneysel tipografi çalışmalarıyla örneklendirilip görselleştirilmiştir. Yapılan inceleme

ve deneysel tipografi çalışmaları sonucunda bazı durumlar tespit edilmiş ve sonuç bölümünde

paylaşılmıştır. 
Yemek Kültürü ve Sofra Seramikleriyle Etkileşimi
Authors: Sevim Cemalettin
Published: February 2018

İnsanın hayatı boyunca vazgeçemediği yaşamsal ihtiyaçlarından bir tanesi yemek yemedir. Yemekler ve kullanılan kaplar kültür ve geleneklere dayalı olarak tercihlere göre değişkenlik gösterir.

İnsan, yemek ve yemek kabının ayrılmaz birlikteliği insanlık var olduğu sürece devam edecektir.

Bu birliktelik sürecinde yemekler, yemek kapları, yemek kaplarının malzemeleri ve biçimleri teknolojik gelişmelerin paralelinde kültür, fonksiyonellik ve kişisel beğeniler doğrultusunda gelişmeler

göstermiştir. Tarihsel süreçte cam, metal, taş, plastik, ahşap gibi birçok farklı malzeme ile yapılan

yemek kapları karşımıza çıkmaktadır. Ancak yemek kabı olarak kullanılan en eski malzemelerden

bir tanesi de seramiktir.

Bu makalede yemek kültürünün artistik ve fonksiyonel sofra seramikleri ile etkileşimi incelenerek bu birlikteliğin günümüzdeki son durumu ve kullanıcıların beklentileri değerlendirilecektir. 