bluuebunny/crossref_metadata_2025 huggingface dataset:
MAPCap: A fast and quantitative transcription start site profiling protocol
Authors: Bhardwaj Vivek , Semplicio Giuseppe , Erdogdu Niyazi Umut , Akhtar Asifa
Published: July 2019

Below we present a simple and quick TSS quantification protocol, MAPCap (Multiplexed Affinity Purification of Capped RNA) that enables users to combine high-resolution detection of transcription start-sites and differential expression analysis. MAPCap can be used to profile TSS from dozens of samples in a multiplexed way, in 16-18 hours. MAPCap data can be analyzed using our easy-to-use software icetea (https://bioconductor.org/packages/icetea), which allows users to detect robust TSS using replicates, and perform differential TSS analysis.
Computer vision systems in unmanned aerial vehicle: a review
Authors: Mendes Odilon Linhares Carvalho , Borille Giovanna Miceli Ronzani
Published: July 2019

Inspections in areas of difficult access or hostile to the human, pattern recognition, surveillance and monitoring, are some of the many applications in with Unmanned Aerial Vehicles (UAV), can be a solution, opening up new perspectives for the use of this technology. The navigation and the position of the UAVs can be made by autonomous method through the computational vision, which is a technology of construction of artificial systems capable of read information from images or any multidimensional data and making decisions. This work presents a review of the use of computer vision systems by UAVs, with a focus on its many applications. The main objective is to analyze the latest technologies used for the development of computer vision in UAVs, through the tools of data search, information storage and, mainly, processing and analysis of data. The researches encompasses a publication of recent works, 2011 onwards, from the Science Direct portal. For each work were analyzed the objectives, methodology and results. Based in this analysis, was made a comparison between the techniques and their challenges. From this, future outlook scenarios of UAVs using computational vision are mentioned.
Budget strategy in the conditions of economic globalization
Authors: Chugunov Igor , Makohon Valentyna , Кrykun Tetiana
Published: July 2019

Economic changes create a strong need for the reconsideration of the system of financial and budgetary knowledge and paradigms already created in developed countries regarding the possibility of their use in the countries with developing economies. In this article, the authors clarify that the process of formation of the efficient and mutually agreed budget policy with strategic tasks of the social and economical development of countries requires development of the budget strategy. Its essence is the dynamic realization of the system of goals, principles, directions, tasks of state authorities, co-ordination and adequacy of their long-term regulatory measures to internal and external changes in the economic environment and social transformations aimed at ensuring macroeconomic stability, accelerating economic growth and improving the well-being of the population. The principles of budget strategy development have been clearly defined: scientific substantiation; integrity; efficiency; systematic approach; adaptability; variability; interdependence; purposefulness; sociality; legitimacy. The share of government expenditures, budget deficit and public debt in the gross domestic product in the EU and Ukraine has been estimated. The priority directions of budget strategies in the conditions of economic transformations have been defined, in particular, regarding the increase of efficiency of public expenditures and establishment of restrictions on their level of growth; improvement of the mechanism for managing budget deficits, public debt and guarantees and reduction of their limits. The research has demonstrated a huge influence of the budget strategy on the social and economical processes and on the development of the social relations.
Bacterial community analysis of sulfate-reducing granular sludge exposed to high concentrations of uranium
Authors: Zeng Taotao , Zhang Shiqi , Liao Wei , Ma Hualong , Lens Piet N. L. , Xie Shuibo
Published: July 2019

Sulfate-reducing granular sludge was used for uranium-contaminated wastewater treatment and the responsible microbial community was analyzed. Four feedings, with 6 days for every feeding and 20 mg/L initial uranium, were provided at 27.5 (±2.5) °C. After the four feedings, a uranium removal efficiency of 94% was obtained. Environmental scanning electron microscopy (ESEM) showed that short rod bacteria were the dominant microorganisms in the granular sludge. X-ray energy dispersive spectroscopy (EDS) confirmed the presence of uranium on the granular surface. High-throughput sequencing was carried out for analyzing the bacterial diversity and community structure. The total data set comprised 8,290 high quality sequences, which could be divided into 605 operational taxonomic units (OTUs). The library coverage was 0.96 and the alpha diversity indices of ACE, Chao1, Shannon and Simpson were 2,255.40, 1,346.12, 4.03 and 0.05, respectively. There were 13 bacterial genera present with a ratio of more than 1% of the total 124 genera, among which Desulfovibrio (16.48%), Clostridium IV (9.29%), Bacteroides (3.46%) and Citrobacter (1.41%) were assumed as the functional bacteria, with a cumulative proportion of 30.64% of the total bacterial population. The results provide insights into the bacterial community of sulfate-reducing granular sludge exposed to high concentrations of uranium (20 mg/L).
Preparation of sustainable non-combustion filler substrate from waterworks sludge/aluminum slag/gypsum/silica/maifan stone for phosphorus immobilization in constructed wetlands
Authors: Wang Guanghui , Gao Jingqing , Yang Rongxue , Zhang Jingshen , Guo Han , Gao Jianlei
Published: July 2019

In this study, an artificial wetland filler matrix capable of effectively fixing phosphorus was prepared using a non-combustion process to save energy. To evaluate the adsorption performance of this filler, adsorption experiments were performed and the phosphorus adsorption mechanism characterization was studied. An alkaline environment was found to be conducive to the increase of adsorption capacity, but excessive alkalinity was not conducive to adsorption. Static adsorption experiments showed that the phosphorus removal rate could reach 95% in the simulated phosphorus-containing wastewater after adsorption completion. The adsorption process is closely simulated by the pseudo-second-kinetic adsorption model. The isothermal adsorption experiment data were consistent with the Langmuir and the Freundlich adsorption isotherms. The characterization results showed a large number of micropores and adsorption binding sites inside and on the surface of the filler. Speciation analysis on the adsorbed phosphorus revealed that chemisorption by calcium in this filler was the dominant adsorption mechanism. The research results of this study provide the basis and reference for the development of high-efficiency phosphorus removal filler in constructed wetlands.
An iron-carbon-activated carbon and zeolite composite filter, anaerobic-aerobic integrated denitrification device for nitrogen removal in low C/N ratio sewage
Authors: Xie Yixuan , Wan Ajun , Wang Xingmin , Dong Hengjie , Wu Yunpeng
Published: July 2019

In this study, we use an anaerobic-aerobic integrated denitrification (Fe/C-ZACID) device with an iron-carbon-activated carbon and zeolite composite filter to remove nitrogen from simulated low carbon-nitrogen ratio (C/N) sewage. The impacts of dissolved oxygen (DO) level, hydraulic retention time (HRT), C/N and nitrate recirculation ratio on denitrification performance were studied. The results show that when HRT was 6 h, DO was 3 ± 0.1 mg/L, influent C/N was 3, and nitrate recirculation ratio was 100%, and removal rates of 95% for ammonia and 85% for total nitrogen (TN) were achieved. A beaker comparison test demonstrated that this synergistic denitrification system included heterotrophic denitrification, physicochemical denitrification, iron autotrophic denitrification and hydrogen autotrophic denitrification, etc. The Fe/C-ZACID device has a high-efficiency nitrogen removal effect for low C/N ratio sewage and strong shock resistance, which provides technical support and a theoretical basis for advanced denitrification of rural domestic sewage.
Advertising on the Internet as a marketing tool in the field of interaction between customers and sellers
Authors: Begimkulov J.
Published: July 2019

In this article the author outlines that in the age of information technologies, the sphere of interaction between customers and sellers has moved to the Internet. Every day 5 billion people on the planet enter the network. In this regard, in recent years, advertising on the Internet has become increasingly popular. The author of the article points out various types of advertising. The author comes to a conclusion that modern business structures and private entrepreneurs actively use social networks to promote their products and services, because social networks are an ideal advertising platform.
A study of drinking water quality before and after its purification in Saint-Petersburg
Authors: Zhilochkina Tatiana Ivanovna , Seliverstov Andrei Igorevich
Published: July 2019

This article is devoted to a comprehensive study of drinking water before and after its purification. Water samples taken at 5 water supply and 5 water distribution stations of the city were used in the study. The author comes to the conclusion that the use of the monitoring system allows you to respond quickly to any changes in the quality of the drinking water, and quickly make decisions that affect its purification.
Who will appraise the arrested property of a debtor?
Authors: Korsun Tamara Ivanovna
Published: July 2019

In the article the author pays special attention to the assessment of the debtor's property in enforcement proceedings. The presence of experts-appraisers in the law enforcement services will ensure on-time and high-quality execution of warrants of arrest, appraise and sale of property in order to pay off the alimony, taxes, loans. The author comes to the conclusion that the use of these recommendations can improve the quality of work in the appraisal of property in the course of enforcement proceedings and ensure a balance of interests of debtors, collectors, appraisers.
In Vitro Anti-Viral Effects of Small Heat Shock Proteins 20 and 27: A Novel Therapeutic Approach
Authors: Vahabpour Rouhollah , Soleymani Sepehr , Roohvand Farzin , Zabihollahi Rezvan , Bolhassani Azam
Published: July 2019

Background:

The protective effects of heat shock proteins (Hsps) were studied in some infectious and non-infectious diseases, but their specificity was slightly known in various disorders. Among Hsps, small Hsps (e.g. Hsp27 and Hsp20) have important roles in protein folding and translocation, and also in immunity.

Methods:

In this study, overexpression of Hsp20 and Hsp27 was performed by transfection of the plasmids encoding Hsp20 and Hsp27 (pEGFP-Hsp20 and pEGFP-Hsp27) into Huh7.5, Hela and Vero cells using Lipofectamine along with heat shock. Then, their anti-herpes simplex virus-1 (HSV-1), anti- human immunodeficiency virus-1 (HIV-1) and anti-hepatitis C virus (HCV) effects, as well as cytotoxicity, were evaluated in vitro, for the first time.

Results:

Our data showed that simultaneous treatment with Lipofectamine and heat shock augmented the rate of transfection and subsequently the expression of Hsps in these cells. Moreover, overexpression of Hsp20 in HCV-infected Huh7.5 cells, HIV-infected Hela cells and HSV-infected Vero cells reduced the replication of HCV, HIV and HSV, respectively. In contrast, overexpression of Hsp27 significantly decreased HSV replication similar to Hsp20, but it did not affect the replication of HIV and HCV.

Conclusion:

Generally, Hsp20 was identified as a novel anti-HCV, anti-HSV and anti-HIV agent, but Hsp27 was efficient in the suppression of HSV infection. These Hsps may act through suppression of virus entry and/ or through interaction with viral proteins. Thus, it is necessary to determine their exact mechanisms in the near future.
Effect of Levetiracetam on Cognitive Function and Clonic Seizure Frequency in Children with Epilepsy
Authors: Zhou Shihao , Zhan Qiong , Wu Xiaomei
Published: July 2019

Background:

This study aimed to explore the clinical effect of levetiracetam in
the treatment of children with epilepsy.

Methods:

136 children with epilepsy were selected from January 2017 to December
2017. According to the random number table method, they were divided into the
experimental group and the conventional group, with 68 cases in each group. The
conventional group was treated with valproate, while the experimental group was treated
with levetiracetam. The effective rate, the cognitive function and the frequency of clonic
seizures in the two groups were compared.

Results:

There was no significant difference in the total effective rate between the two
groups (P>0.05). There was no significant difference in attention, executive ability,
abstract and orientation scores between the two groups before treatment (P>0.05). After
treatment, the focus of attention (106.54±6.56), executive ability (105.76±6.77), abstract
and directional score (106.65±6.57) were significantly higher than that of the
conventional group. The difference in the two groups was statistically significant
(P<0.05). After 3 months of treatment, the frequency of myoclonic seizures (9.22±0.95)
and the frequency of tonic-clonic seizures (11.68±1.36) were found to be significantly
lower than those of the conventional group, and the difference between the two groups
was statistically significant (P<0.05).

Conclusion:

Levetiracetam is effective in the treatment of children with epilepsy. It can
effectively improve the cognitive function of the patients, reduce the frequency of
myoclonic seizures and tonic-clonic seizures, and has a high promotion value.
Untangling the Metabolic Reprogramming in Brain Cancer: Discovering Key Molecular Players Using Mass Spectrometry
Authors: Sorokin Anatoly , Shurkhay Vsevolod , Pekov Stanislav , Zhvansky Evgeny , Ivanov Daniil , Kulikov Eugene E. , Popov Igor , Potapov Alexander , Nikolaev Eugene
Published: July 2019

Cells metabolism alteration is the new hallmark of cancer, as well as an important method for
carcinogenesis investigation. It is well known that the malignant cells switch to aerobic glycolysis pathway
occurring also in healthy proliferating cells. Recently, it was shown that in malignant cells de novo
synthesis of the intracellular fatty acid replaces dietary fatty acids which change the lipid composition of
cancer cells noticeably. These alterations in energy metabolism and structural lipid production explain
the high proliferation rate of malignant tissues. However, metabolic reprogramming affects not only
lipid metabolism but many of the metabolic pathways in the cell. 2-hydroxyglutarate was considered as
cancer cell biomarker and its presence is associated with oxidative stress influencing the mitochondria
functions. Among the variety of metabolite detection methods, mass spectrometry stands out as the most
effective method for simultaneous identification and quantification of the metabolites. As the metabolic
reprogramming is tightly connected with epigenetics and signaling modifications, the evaluation of metabolite
alterations in cells is a promising approach to investigate the carcinogenesis which is necessary
for improving current diagnostic capabilities and therapeutic capabilities. In this paper, we overview
recent studies on metabolic alteration and oncometabolites, especially concerning brain cancer and mass
spectrometry approaches which are now in use for the investigation of the metabolic pathway.
Quercetin Promotes Cell Cycle Arrest and Apoptosis and Attenuates the Proliferation of Human Chronic Myeloid Leukemia Cell Line-K562 Through Interaction with HSPs (70 and 90), MAT2A and FOXM1
Authors: Hassanzadeh Ali , Hosseinzadeh Elham , Rezapour Saleheh , Vahedi Ghasem , Haghnavaz Navideh , Marofi Faroogh
Published: July 2019

Background:

Chronic Myeloid Leukaemia (CML) starts in certain blood-forming cells of the bone
marrow when cells acquire Philadelphia chromosome. Nowadays, scientists attempt to find novel and safe
therapeutic agents and approaches for CML therapy using Tyrosine Kinase Inhibitors (TKIs), CML
conventional treatment agents, has some restrictions and also adverse effects. Recently, it has been proposed that
phytochemicals, such as flavonoids due to their low side effects and notable safety have the potential to be used
for CML therapy.

Materials and Methods:

K-562 cells were exposed with three concentrations of the querectin (10, 40 and
80µM) for 12, 24 and 48 hours. After that, these cells apoptosis rate was estimated using Annexin-V/PI staining
and flowcytometry analysis, and their proliferation rate was evaluated using 3-[4,5-dimethylthiazol-2-yl]-2,5
diphenyl tetrazolium bromide (MTT). Finally, the expression of the 70 and 90 kilodalton heat shock proteins
(HSP70 and 90), methionine adenosyltransferase 2A (MAT2A), Forkhead box protein M1 (FOXM1), caspase-3
and -8, Bcl-X(L) and Bax involved in leukemic cells survival and proliferation was assessed using Real-Time
PCR within 12, 24 and 48 hours after exposure with quercetin 40 and 80µM.

Results:

Considering consequences, querecetin induced apoptosis in K-562 cells, and also abrogated these cells
proliferation. On the other hand, RT-PCR results showed a reduction in some of the candidate genes expression,
especially HSP70, Bcl-X(L) and FOXM1, when cells were treated with quercetin 40 and 80µM. Also, Bax,
caspase-3 and caspase-8 expression was significantly improved in K-562 cells upon quercetin exposure.

Conclusion:

We concluded that CML therapy by querecetin due to its anti-proliferative and anti-survival
potentials could lead to the promising therapeutic outcome through targeting major survival and proliferation
involved genes expression.
The future of networks based on the vision of the SDN
Authors: Gómez Gómez Jorge
Published: July 2019

Tradicionalmente, las redes de computadoras tal como las conocemos se basan en una infraestructura física llamada hardware que trae consigo un software predeterminado desarrollado por cada uno de los fabricantes. En realidad, las redes enfrentan un gran desafío a medida que aumentan las necesidades de los clientes móviles y fijos. Estas necesidades están orientadas al acceso inmediato a todo tipo de contenido, lo que obviamente implica implicaciones en la adquisición de ancho de banda y en la compra adicional de hardware, para ofrecer un mejor rendimiento a la infraestructura de la red. Parecería ser una solución simple, pero en muchos casos, a pesar de la adición de nuevos equipos y más ancho de banda, no se puede resolver el problema necesariamente.
Las Innovaciones Educativas con TIC como generadoras de cambio en las prácticas pedagógicas de aula
Authors: Hernandez Pino Ulises , Anaya Diaz Sandra Lorena , Lara Silva Emigdio Andrés , Carrascal Reyes Mary Cristina
Published: July 2019

En la Fase 1 del proyecto de investigación “Fortalecimiento y ampliación de cobertura de la formación postgradual en Innovaciones Educativas con TIC a través de estrategias de educación virtual pertinentes al contexto socio-cultural de la región”, desarrollado por la Universidad del Cauca y en alianza con la Secretaria de Educación de Popayán y del Cauca, y la Corporación Cluster CreaTIC, se indagó sobre: el sentido que tienen las Innovaciones Educativas con TIC para los docentes en el sur-occidente colombiano; las tendencias mundiales sobre el uso de las nuevas tecnologías en educación a partir de los reportes del proyecto Horizon; y la revisión de los planes de estudio de 18 programas de postgrado en Colombia. La conclusión es que las Innovaciones Educativas con TIC, más que la incorporación de tecnología en la educación, busca generar cambios en el paradigma pedagógico a partir de las posibilidades que ofrecen estas nuevas tecnologías.
Aprendizaje de las Leyes de Newton en la Educación Superior a través de la gamificación
Authors: Olave Portilla; Víctor René , Hoyos Carvajal Oscar Fernando , Medina González Sebastián Camilo , Vivas Idrobo Sandra Juliana , Volverás Ary Fabián
Published: July 2019

Este trabajo pretende diseñar e implementar una app móvil que permita mejorar el aprendizaje de los estudiantes en las tres Leyes de Newton que cursan Física I, en los programas de Ingeniería en la Corporación Universitaria Comfacauca, debido a que se ha evidenciado que es un tema complejo durante el desarrollo del curso, dado que el formalismo matemático y físico que se emplea para la resolución de problemas. Esto genera un bajo rendimiento académico de los estudiantes en el último corte del semestre que cursan porque se enfrentan a conceptos invisibles que causan dificultad al comprenderlos y representarlos. Se observó que falta una herramienta más completa a modo de simulador para que el estudiante interactúe y resuelva los problemas propuestos. Se espera mejorar el aprendizaje y rendimiento académico de los estudiantes.
Humanización un desafío en instituciones públicas del departamento de Córdoba, Colombia
Authors: Orozco Valeta Matha , Medina Payares Martha , Montoya Vega Martha
Published: July 2019

Objective. To evaluate the humanized care service in public health providers in five (5) municipalities of the department of Córdoba (Montería, Sahagún, Lorica, Planeta Rica and Montelíbano) in 2016. Materials and methods. Descriptive, cross-sectional mixed type research; to carry out this study, two data collection techniques were used; first the application of the instrument created by Willmer Emilio Mojica Gutiérrez in his thesis: “Social management in the humanization of health care” which is for free and can be downloaded, and the observation. Results. The highest percentage of compliance was obtained to the humanized treatment variable for disabled and mentally ill people (81%); followed by general services attention (68%); highlighting 100% of compliance with the follow-up variable in all health providers evaluated. Conclusion. Humanization must be an institutional commitment led by high management chiefs, who should promote cultural transformation in employees; it also requires the allocation of financial resources for the adaptation of adequate infrastructure, the inclusion of humanization elements in physical environments, in planning schedules of training and application of awareness strategies that guarantee the promotion of a more human treatment.
Delirio en pacientes con síndrome coronario agudo en una unidad de cuidados intensivos
Authors: Sánchez Caraballo Álvaro , Herrera Herrera Jorge , Cárdenas Díaz Néider , Oyola López Edison
Published: July 2019

DELIRIUM is a variation acute state of consciousness, often in intensive care (ICU). Its incidence varies widely, featuring different correlated clinical features. Objective. To determine the incidence of delirium in patients with acute coronary syndrome (ACS) in the ICU, as well as the correlation of delirium (CAM-ICU) and the degree of severity of the disease (APACHE-II). Materials and method. Descriptive, prospective, quantitative study. Made during the fourth quarter 2015. Patients under the inclusion criteria, applied the CAM-ICU diagnostic tool, to detect the presence of delirium, as well as a review of medical history, and operationalization of variables. The objectives set were obtained after a multivariate statistical analysis descriptive and correlational. Results. The incidence of delirium in the clinical study group was 37.5%, with average age for patients with delirium of 67 vs 64 years for those who did not. The degree of association between delirium and operacionalizadas clinical features have one significance greater than 0.05%, as well as the relationship between delirium and the percentage of mortality according to APACHE-II (Phi 283). Conclusions. The incidence of delirium in patients with ACS in the ICU was 37.5%, evidencing a non-significant statistical association between delirium and the identified clinical characteristics. The mortality rate behaved independently to the emergence of delirium.
Retraso diagnóstico de la infección por el Virus de Inmunodeficiencia Humana
Authors: Gómez Álvarez Martha , Hanna Lavalle Mónica , Amador Ahumada Concepción
Published: July 2019

Objective. To analyze the behavior of the diagnostic opportunity by evaluating Diagnostic Delays (RD) and diagnoses with Advanced Stage Presentation (PEA) in HIV / AIDS cases. Materials and methods. Retrospective descriptive study of diagnoses of infection by the HIV virus in health care institutions. New cases or incidents diagnosed between January 1, 2011 and December 31, 2016 were included. Diagnostic delay (RD) was labeled as those that obtained CD4 less than 350, Presentation with Advanced Disease (PEA) by CD4 less than 200, and an additional category of CD4 less than 500 used as reference standard. Results. 188 incidents were entered all with results of CD4 lymphocyte count; the median age was 30 (Interquartile range 23-40), median CD4 of 230. Regarding the interpretation of the delays 43.6% of the cases presented PEA, 68.6% classified for RD. The proportion of RD and PEA was higher among men and in the older age groups; according to the mode of transmission, sexuality predominated, with the RD and PEA being more frequent among Men who have Sex with Men (MSM), in contrast to what has been observed in other studies, a situation that denotes difficulties in targeting subjects at risk. Conclusion. The cases that are being diagnosed in the final phase correspond to older individuals, male with a history of MSM practices; the findings allow to identify factors that influence the lack of opportunity for diagnosis, failures in public health management in relation to the prevention and control of HIV in key populations.
Evaluación de la mezcla de sustratos en un cultivo de lechuga (Lactuca sativa L.) var. Verónica
Authors: Reyes-Medina Andrea J. , Fraile-Robayo David , Álvarez-Herrera Javier G.
Published: July 2019

La producción de hortalizas en sustratos se ha convertido en una gran alternativa. Por lo anterior, se evaluaron diferentes sustratos en un cultivo de lechuga en invernadero. Se utilizó un diseño en bloques completamente al azar (BCA) donde el factor de bloqueo fueron los sustratos y se establecieron tres tratamientos: T1: turba negra 30%, turba de coco 70%, T2: turba negra 70%, turba de coco 30% y T3: turba negra 50% y turba de coco 50%, para un total de 9 unidades experimentales, cada unidad experimental estuvo conformada por 10 plantas. Cada 8 días, durante 32 días, se determinó la altura de planta, masa fresca y seca de hojas y raíz, área foliar y cada 2 días, las unidades SPAD y la conductividad estomática (CE). Se presentaron diferencias significativas en las Unidades SPAD en el tiempo con un valor de 20,7. La CE presentó los mayores valores en T3 y T2 con valores de 354,2 y 366,2 mmol m-2 s–1, respectivamente. El T1 presentó el mayor valor de resistencia estomática (RE) con 7,5 m2 s mol–1. El área foliar y la altura no presentaron diferencias significativas. El T2 a los 15 días después de trasplante mostró los mayores valores de masa fresca de raíz (MFR), masa seca de raíz (MSR) y masa fresca de hojas (MFH) con 3,1 g, 0,106 g y 13,19 g, respectivamente. En la cosecha, el T3 mostró un 10% y 15% más de producción de MFH de lechuga, que los tratamientos T2 y T1, respectivamente.
Tipificación de sistemas de producción de café en La Unión Nariño, Colombia
Authors: Ordóñez Jurado Héctor Ramiro , Navia Estrada Jorge Fernando , Ballesteros Possú William
Published: July 2019

En Colombia, la diversidad de agroecosistemas  le genera al café sabores y aromas característicos. Un primer paso para conocer los aspectos particulares de cada zona es la descripción de los sistemas productivos. En la zona cafetera del municipio de la Unión Nariño, localizada a 1º 36’ y 06’’ de latitud Norte y a 77º 00’ y 15’’ longitud Oeste, la actividad  cafetera  se  desarrolla  en  fincas  productivas  heterogéneas en términos  de extensión, distancias de siembra, tecnología aplicada, organización, estructura familiar y fundamentalmente en el uso y manejo de  la sombra; razón por  la cual, es  importante tipificarlos mediante la integración de la dimensión social, económica y ambiental y establecer las diferencias entre ellos, conocer su dinámica y determinar las potencialidades y las limitantes para contribuir  a  los procesos de planificación, investigación, y organización del sector cafetero. Se aplicó una encuesta semiestructurada a 104 productores ubicados entre los 1400 y 1800 msnm. Esta información se complementó con información proveniente de las instituciones vinculadas al sector cafetero. Un análisis multivariado a partir de un análisis de conglomerados (método de Ward y de componentes principales), fue aplicado a las variables con alta correlación. Se establecieron cuatro tipologías de sistemas de producción: café con sombra de leñosas (S1), café semi-sombra (S2), café- plátano (S3) y el sistema de cultivo café sin sombra (S4). Al interior de cada tipología, se encontraron diferentes dinámicas en las prácticas de manejo del cultivo, conllevando a diferencias en la producción, calidad y rendimientos económicos
Review – New Media Caucus Showcase A perspective on consciousness within digital practices
Authors: Faccion Debora
Published: July 2019

Presentations by the following NMC members:

Sophia Brueckner, Assistant Professor, University of Michigan

Martin Calvino, Artist-in-residence at Rutgers University

Zach Duer, Assistant Professor, Creative Technologies, Virginia Tech

Carter Eggleston, MFA candidate in Creative Technologies, Virginia Tech

Elizabeth Flyntz, Artist, Writer, and curator

Jeffrey Gangwisch, strikeWare co-founder and Adjunct Professor, Anne Arundel Community College

Chelsea Heikes, candidate at European Graduate School

Laura Hyunjhee Kim, Ph.D. candidate, University of Colorado Boulder

George Legrady, Distinguished Professor of Interactive Media and director of Experimental Visualization Lab, UC Santa Barbara

Maya Livio, Ph.D Candidate, University of Colorado Boulder, Curator of Media Archaeology Lab, Curator of MediaLive at BMoCA

Eric Souther, Associate Professor of New Media, Indiana University South Bend

Deirtra Thompson, Independent artist, practitioner, and researcher

Masha Vlasova, Lecturer and Lead Faculty, University of North Texas

Michelle Hernandez, MFA alumna, Hunter College, CUNY

Dominika Ksel, Adjunct Assistant Professor of New Media, Baruch College, CUNY.
THE IMPACT OF SOCIAL MEDIA USAGE TO ACADEMIC PERFORMANCE
Authors: Gloria Suita Allemina , Akbar Surya
Published: July 2019

Background: Social media is basically a tool for someone to interact with other people with use of internet. In futher, social media is not only used as a tool for interact with others, but it can be used on learning process. This study aims to analyse correlation betwen duration of using a social media with academic performance.Method: This study used a cross sectional design. Respondents on this study are 126 undergraduates students on fourth years in Faculty of Medicine, Universitas Islam Sumatera Utara. Using of a social media are measured by how long a student use of a social media based on their purpose (learning or entertainment). Results from the measurement will grouping into two different group, that is using of a social media for learning group and for entertainment group. The academic performance was measured by calculating a Grade Point Average (GPA) of each student. The collected data were analyzed by using Spearman Correlation method.Results: There was a significant correlation betwen duration of using a social media for learning process with academic performance (r = 0,554, p = 0,0001). Similarly, there are a significant correlation betwen duration of using a social media for entertainment with academic performance (r = -0,568, p = 0,0001), but the coefficient correlation have a negative value.Conclusion: The social media have an impact to academic performance, where the students who used more social media as a learning process have a good GPA and the students who used more social media as a entertainment have a bad GPA. Sugesstions that can be given based on this study are the use of social media can be considered as a tool for helping students enhancing learning process.
Presymptomatic Screening for Intracranial Aneurysms in Patients with Autosomal Dominant Polycystic Kidney Disease
Authors: Sanchis Irina M. , Shukoor Shehbaz , Irazabal Maria V. , Madsen Charles D. , Chebib Fouad T. , Hogan Marie C. , El-Zoghby Ziad , Harris Peter C. , Huston John , Brown Robert D. , Torres Vicente E.
Published: July 2019

Background and objectives

Intracranial aneurysm rupture is the most devastating complication of autosomal dominant polycystic kidney disease. Whether selective or widespread intracranial aneurysm screening is indicated remains controversial.

Design, setting, participants & measurements

Records of 3010 patients with autosomal dominant polycystic kidney disease evaluated at the Mayo Clinic between 1989 and 2017 were reviewed. Those who had presymptomatic magnetic resonance angiography screening were included.

Results

Ninety-four intracranial aneurysms were diagnosed in 75 of 812 (9%) patients who underwent magnetic resonance angiography screening. Sex, age, race, and genotype were similar in the groups with and without aneurysms; hypertension and history of smoking were more frequent in the aneurysm group. Twenty-nine percent of patients with aneurysms compared with 11% of those without aneurysms had a family history of subarachnoid hemorrhage (P<0.001). Most aneurysms were small (median diameter =4 mm; range, 2–12 mm); 85% were in the anterior circulation. During a total imaging follow-up of 469 patient-years, de novo intracranial aneurysms were detected in five patients; eight intracranial aneurysms grew (median =2 mm; range, 1–3 mm). During a total clinical follow-up of 668 patient-years, seven patients had preemptive clipping or coil embolization; no intracranial aneurysms ruptured. During a total clinical follow-up of 4783 patient-years in 737 patients with no intracranial aneurysm detected on the first magnetic resonance angiography screening, two patients had an intracranial aneurysm rupture (0.04 per 100 person-years; 95% confidence interval, 0 to 0.10). The rate of intracranial aneurysm rupture in large clinical trials of autosomal dominant polycystic kidney disease was 0.04 per 100 patient-years (95% confidence interval, 0.01 to 0.06).

Conclusions

Intracranial aneurysms were detected by presymptomatic screening in 9% of patients with autosomal dominant polycystic kidney disease, more frequently in those with familial history of subarachnoid hemorrhage, hypertension, or smoking. None of the patients with and two of the patients without aneurysm detection on screening suffered aneurysmal ruptures. The overall rupture rate in our autosomal dominant polycystic kidney disease cohort was approximately five times higher than that in the general population.
Conocimiento y percepciones médicas sobre la fisioterapia y el trabajo interdisciplinario
Authors: Estrada-Gómez Cyntia Gabriela , Gutiérrez Camacho Claudia , Salinas Sánchez Igor , Peñaloza Ochoa Laura
Published: July 2019

Introducción: Las actividades del fisioterapeuta incluyen atención clínica, gestión, docencia, investigación e implementación de políticas en salud. Desafortunadamente, el conocimiento médico del involucramiento del fisioterapeuta en estas actividades es precario, dificultando el trabajo interdisciplinario.

Objetivo: Describir el conocimiento y percepción de los médicos residentes de un hospital de tercer nivel sobre las actividades e importancia del trabajo interdisciplinario con la fisioterapia.

Método: Estudio observacional, descriptivo, de corte transversal. Se construyó y aplicó un cuestionario de 12 reactivos de opción múltiple en residentes de pediatría, genética médica, subespecialidades pediátricas y cursos de alta especialidad en Medicina, quienes respondieron al menos el 80% de las preguntas. Se excluyeron residentes cuyos pacientes reciben fisioterapia en forma cotidiana.

Resultados: Se incluyeron 158 médicos residentes, el 77.8% conocía sólo las actividades clínicas del fisioterapeuta. El 68% solicitó entre 1 a 4 interconsultas al mes. La mayoría reconoció la autonomía del fisioterapeuta para establecer diagnósticos funcionales más no tratamientos (68%), más de la mitad (66.7%) señaló la necesidad de pases de visita, sesiones clínicas y entregas de guardia en conjunto.

Conclusiones: Sería conveniente incrementar el currículo del médico en formación sobre el campo de acción del fisioterapeuta y los beneficios del trabajo interdisciplinario.
El médico residente de urología como educador. Una intervención educativa participativa
Authors: Leyva González Félix Arturo , Leyva Salas César Arturo , F. Gómez Clavelina Francisco Javier , Leyva Salas Félix Arturo , Valencia Sánchez Jesús Salvador
Published: July 2019

Objetivo: Determinar el alcance de una intervención educativa promotora de la participación –implementada por un médico residente de quinto año– con respecto al desarrollo de la aptitud clínica de médicos residentes de urología, en la atención de los cuatro padecimientos urológicos más frecuentes, en un tercer nivel de atención médica.

Método: Se realizó un estudio de intervención en médicos residentes de segundo (R2 n = 7) y tercer año (R3n = 6) de urología en Centro Médico Nacional “La Raza”, en la Ciudad de México, México, periodo: noviembre - diciembre de 2017. Se construyó un instrumento que evaluó la variable: “aptitud clínica” de médicos residentes de segundo y tercer año, en cuatro padecimientos urológicos; la validez conceptual, de contenido y confiabilidad, se valoró por cuatro médicos especialistas en urología, con experiencia en docencia e investigación educativa. La intervención educativa fue implementada por un residente de urología de quinto año. La intervención educativa se desarrolló en forma de seminarios, los cuales se realizaron dos veces por semana (lunes y viernes); duración por sesión: dos horas; duración total de la intervención educativa: 16 sesiones. El instrumento de medición se aplicó al inicio (1ª sesión) y al finalizar la intervención educativa (16ª sesión). 

Resultados: En los R2 y R3 se observaron avances en todos los indicadores de aptitud clínica y en la calificación desaglobal, lo cual se expresó con diferencias estadísticamente significativas; los R2, en la calificación global (medición inicial vs. final) mostraron las siguientes medianas: 44 y 110 (p 0.018); los R3, la calificación global mostró: 52.5 y 128 (p 0.027). 

Conclusiones: Una intervención educativa participativa implementada por un médico residente de urología de quinto año, se puede asociar con un avance en el desarrollo de la aptitud clínica de R2 y R3 de la misma especialidad.
Características de estudiantes del posgrado de la Escuela de Salud Pública de México, 2004-2014
Authors: Magaña-Valladares Laura , Castillo-Castillo Lorena Elizabeth , Molina-Rodríguez Juan Francisco , Díaz-Portillo Sandra Patricia
Published: July 2019

Introducción: La Escuela de Salud Pública de México desempeña un importante papel en la formación de recursos humanos en salud pública en México, situación que señala la importancia de documentar las características de los estudiantes que cursan sus programas.

Objetivo: Se analizaron las características de los aspirantes aceptados en los programas de maestría de la Escuela de Salud Pública de México, entre 2004 y 2014.

Método: Estudio transversal descriptivo. Se utilizó la información de 2,113 aspirantes aceptados en los programas de maestría en ciencias y maestría profesional.

Resultados: Se observó una disminución en la mediana de edad de ingreso, una mayor participación de mujeres y un promedio de calificaciones mayor en mujeres en los estudios previos de licenciatura (8.7 vs 8.5) (p < 0.00). En EXANI III los hombres tuvieron en promedio un puntaje mayor (1050 vs 1040) (p < 0.00), además se encontró, en dicho examen, un incremento de 9.6 puntos en promedio por año en todos los estudiantes. La modalidad presencial concentra estudiantes en promedio más jóvenes que las modalidades no presencial y ejecutiva. Se encontró una menor participación de estudiantes con formación médica y un predominio de estudiantes de otras disciplinas.

Conclusión: Se encontraron cambios en las características de los estudiantes, así como una diversificación en su formación profesional previa a lo largo de la década estudiada.Se requieren estudios que analicen la trayectoria educativa de los estudiantes y los factores institucionales que influyen en su desempeño.
Cohesión social y participación escolar en estudiantes de educación básica y media de San Pedro de la Paz
Authors: Sánchez-Oñate Alejandro , Pérez-Salas Claudia Paz , Barriga Omar Alexandre
Published: July 2019

El objetivo de este estudio fue establecer la relación entre la cohesión social y la participación escolar de los estudiantes de educación básica y media, procedentes de establecimientos de distinta dependencia administrativa, de la comuna de San Pedro de la Paz, Chile. La investigación se desarrolló a partir de un método de encuestas transversales, empleando un cuestionario construido especialmente para el estudio. Participaron 693 estudiantes. Se emplearon modelos de comparación de medias y correlaciones bivariadas para dar respuesta a los objetivos de investigación. Los resultados muestran una estrecha relación entre la cohesión social y la participación escolar de los estudiantes, siendo esto concordante con la literatura científica revisada. Por otra parte, se destaca el nivel socioeconómico como factor que explica las diferencias en la cohesión social y la participación escolar de los estudiantes, lo que se suma al respaldo empírico sobre los determinantes socioeconómicos del sistema escolar chileno.
La representación social del fracaso escolar
Authors: Zamudio Elizalde Pedro Damián , López Beltrán Fidencio , Reyes-Sosa Hiram
Published: July 2019

La presente investigación tuvo como objetivo analizar los elementos de la representación social que tienen los estudiantes de educación media superior sobre el fracaso escolar. Se plantea una metodología cualitativa con diseño transversal. La muestra fue seleccionada bajo un criterio no probabilístico intencionado. En el estudio participaron 524 estudiantes (52 por ciento mujeres y 48 por ciento hombres), con una media de 16.5 años (DT= .912). Los instrumentos de recolección de la información fueron un cuestionario de evocación libre de palabras y un cuestionario de refutación. Los resultados del prototipo representacional muestran una organización del discurso en torno a tres dimensiones: la dimensión económica, las consecuencias académicas y la ausencia de apoyo familiar. El cuestionario de refutación permitió confirmar el elemento aprendizaje (malo), y aporta nueva información del núcleo central, el cual incluye a los elementos mal rendimiento académico, abandono escolar y escuela de baja calidad.
profesión del farmacéutico mexicano, una comparación internacional
Authors: González Pech Harim Ernesto , F. Scior Thomas Rainer , De Vries Wietse
Published: July 2019

Una demanda actual hacia la universidad es formar egresados bien preparados para lo que el mercado laboral exige. Para ello, cada programa educativo debe analizar cuál es el mercado de trabajo, cuáles las habilidades, conocimientos y competencias que requiere, y cómo se debe organizar el currículo. Este trabajo analiza los programas académicos que forman a los farmacéuticos en México desde la perspectiva del documento emitido por la Federación Internacional de Farmacéutica. Se identificaron 15 titulaciones distintas referidas a Farmacia, pero sólo 3 cumplen con los lineamientos internacionales. Se observó la ausencia de una directriz para lograr una formación integral de los profesionales de esta disciplina de acuerdo con las necesidades nacionales e internacionales. Aunque existe un acuerdo internacional sobre lo que el farmacéutico debe saber, esto no concuerda con lo que el peculiar mercado mexicano demanda en la práctica. Al final se plantean algunas sugerencias para resolver este desencuentro.
ANALYSIS OF BUILDING VILLAGE INDEX (IDM) IN VILLAGE DEVELOPMENT IN KUALA SUB-DISTRICT
Authors: Ramly Ar Royyan , Wahyuddin Wahyuddin , Mursyida Julli , Mawardati Mawardati
Published: July 2019

This study aims to analyze the building village index (IDM) in the development of the village in Kuala sub-district of Nagan Raya regency. This research is descriptive qualitative and quantitative. The object of this study is 17 villages in the region of Kuala sub-district, while the data used in this study is sourced from primary and secondary data derived from document review, observation, FGD, and interviews from 2015 to 2017. Data analysis technique using descriptive analysis in the form of tables and diagrams, while the quantitative analysis using multiple regression tests with the dependent variable percentage of village fund accumulation 2015-2017, independent variables are IKL, IKE, IKS, and IDM. The results showed that the analysis of the use of village funds for development in Kuala sub-district positively influences the assumption p-value α = 0.005, sig of 0.001. Then with the development of village infrastructure and empowerment, the status of villages in the region of Kuala sub-district increased with an average developing status of 71 percent and advance village status of 23 percent.
A High Result in Wavelet Watermarking Using Singular Value Decomposition
Authors: Sari Wellia Shinta , Sari Christy Atika
Published: July 2019

Internet that has developed into a good distribution tool for digital data, causing a large increase in digital data sharing, especially in the form of digital images, and causing problems that need attention. One of them is about copyright protection. Watermarking is one technique that aims to protect digital image copyright. In this study, watermarking was carried out using the Discrete Wavelet Transform (DWT) and Singular Value Decomposition (SVD) algorithms in digital images with different file extensions. Transformation of 2 levels of DWT and SVD on the host image and SVD transformation on the watermarked image that inserted in the LL2 sub-band of the host image. Watermarking with the proposed method produces good image quality with PSNR values exceeding 40 dB, SSIM reaching 0.99 and NCC reaching 1. This shows a robust and imperceptible watermarking image.