bluuebunny/crossref_metadata_2025 huggingface dataset:
Concepciones alternativas y errores conceptuales de estudiantes sobre modelos átomicos en química
Authors: Tejada Tovar Candelaria , Gattas Obeid Camilo , Villabona Ortiz Ángel
Published: October 2020

Nuestro trabajo de investigación pretende que el estudiante descubra la trascendencia del concepto de átomo para la comprensión de la ciencia química, que en contraposición al aprendizaje incompleto, mecánico y memorístico, permita un aprendizaje significativo, de tal  forma que el estudiante logre explicar la realidad macroscópica comprendiendo el mundo submicroscopico que la soporta.En una muestra de estudiantes se realizó un diagnóstico sobre las concepciones alternativas, conocimientos previos y errores conceptuales que ellos tienen respecto al concepto de modelos atómicos, mediante la aplicación de un instrumento propuesto por las técnicas Assessmet. Este sondeo permite proporcionar información útil sobre el conocimiento de los estudiantes de determinados tópicos, además de sus habilidades en comunicar lo que saben y proporcionar una línea de base que los profesores podemos usar para tomar decisiones críticas y razonadas respecto a la didáctica y a las directrices instruccionales antes de comenzar con el proceso.Al aplicar el instrumento se identificó una macrocategoría que corresponde a como los estudiantes expresan los modelos de átomos, identificando ocho subcategorías sobre el modo que usan para expresar estos modelos: completa gráfica y escrita, gráfica incompleta y escrita, gráfica incompleta y sin información escrita, gráfica completa y sin información escrita, solo información escrita completa, solo información escrita incompleta, mapa conceptual y no reporta información. Quedando en evidencia la influencia de las diferentes formas como enseñan los docentes y las diversas formas y estilos como aprende los estudiantes.
Hubungan Keterpaparan Media Massa dan Peran Orangtua Terhadap Perilaku Seksual Pada Remaja di SMP APekanbaru Tahun 2017
Authors: Irmawati Irmawati , Fitri Lidia , Afritayeni Afritayeni
Published: October 2020

Survei Demografi Kesehatan Indonesia (SDKI) tahun 2012 mengalami peningkatan pada remaja berusia 15-19 tahun, dimana remaja laki-laki (4,5%) dan remaja perempuan (0,7%) pernah melakukan seks pranikah. Hasil penelitian Kementerian Komunikasi dan Informatika tahun 2014, pada usia 10-19 tahun dengan populasi 43,5 juta didapatkan hasil 52% menemukan konten pornografi melalui iklan/ situs yang tidak mencurigakan dan 14% mengakses situs porno secara sukarela. Berdasarkan survei awal di SMP A Pekanbaru terhadap 10 orang pelajar didapatkan hasil 7 dari 10 mereka sudah berpacaran, sering berpegangan tangan dan berpelukan dengan lawan jenis. Tujuan penelitian ini adalah untuk mengetahui hubungan keterpaparan media massa dan peran orangtua terhadap perilaku seksual pada remaja di SMP A Pekanbaru tahun 2017. Jenis penelitian yaitu analitik kuantitatif, dengan desain cross sectional. Teknik pengambilan sampel yaitu stratified random sampling sebanyak 158 responden. Berdasarkan hasil penelitian dengan menggunakan uji chi square didapatkan hasil adanya hubungan antara keterpaparan media massa dan perilaku seksual dengan  p value 0,000 < 0,05 dan tidak adanya hubungan antara peran orangtua dan perilaku seksual dengan p value 0,759 > 0,05. Hasil penelitian menunjukkan mayoritas responden terpapar media massa (82,3%) dan mayoritas orangtua berperan (91,1%) serta sebagian besar responden beresiko terhadap perilaku seksual (27,8%). Sebaiknya pihak sekolah bekerjasama dengan instansi kesehatan untuk memberikan penyuluhan mengenai kesehatan reproduksi dan bekerjasama dengan BKKBN untuk membuat suatu program Pusat Informasi dan Konseling Remaja (PIK-R).
PEMANFAATAN PERPUSTAKAAN DALAM MENINGKATKAN MOTIVASI BELAJAR SISWA KELAS XI MATA PELAJARAN PPKn DI SMA NEGERI 1 MENTEBAH
Authors: Dada Suhaida , Octavia Erna , Diana Lady
Published: October 2020

Tujuan penelitian ini adalah bagaimana pemanfaatan perpustakaan dalam meningkatkan motivasi belajar siswa PPKn, tujuan penelitian ini khusunya ingin memperoleh informasi pada motivasi belajar siswa PPKn dengan memanfaatkan perpustakaan. Metode penelitian kualtitatif dengan bentuk diskriptif, dengan teknik pengumpulan data berupa panduan observasi, panduan wawancara, dan dokumentasi, untuk teknik analisis data yakni, reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian bahwa, motivasi belajar siswa dengan memanfaatkan perpustakaan cukup baik, hal tersebut tergambar dalam aktivitas siswa yang berkunjung ke perpustakaan selalu menggunakan buku dari perpustakaan dalam membantu menyelesaikan tugas-tugas sekolah, dan aktivitas siswa meminjam buku di perpustakaan cukup sering.Kata kunci: Pemanfaatan Perpustakaan, Motivasi Belajar
Quantum Chemical Studies and Pharmacophore Modeling for Designing Novel Keap1 Antagonists that Enhance Nrf2 Mediated Neuroprotection
Authors: Srinidhi FNU
Published: October 2020

In recent years, the significance of oxidative stress in the pathophysiology of Neurodegenerative/developmental disorders like Attention Deficit Hyperactivity Disorder, Parkinson's and Alzheimer's is being studied at an accelerating pace. Nrf2 activation via Keap1 inhibition is an established strategy for improving the activity of the cellular antioxidant mechanism. In this study, pharmacophore modeling was employed to design efficient Keap1 inhibitors from well-known polypharmacological phytochemicals after extensive structural modifications to improve their pharmacodynamic, pharmacokinetic and drug-likeness qualities (BBB > 0.9, HIA > 0.85). Density functional theory-based quantum chemical calculations at the B3LYP/6-31G (d, p) level of theory were performed for the geometry optimization of the novel ligands and for computing their electronic properties. Resveratrol-4 was found to be the most desirable candidate with and ΔE = 4.24497 eV. HOMO and LUMO distribution of the Resveratrol-4 was found to be very favourable for keap1 binding. Molecular docking studies and comparative interaction analysis also ranked the Resveratrol-4 derivative as the best multi-domain antagonist of the Keap1 protein with a binding affinity of -8 kcal/mole. The following study presents the application of Resveratrol-4 a novel, modified, phytochemical derivative, as an efficient antagonist of the Keap1 protein for enhancing nrf2 mediated neuroprotection from redox insults.
Incidence of Cleft Lip and Cleft Palate - An Institutional Based Retrospective Study
Authors: Inchara R  , Archana Santhanam  , Subhashree R
Published: October 2020

Cleft lip or the palate is the congenital birth defect with which is characterised by complete or partial cleft lip or palate. The congenital cleft involving the facial structures may vary from trace of notching of the lip to a complete non fusion of lip and the palate. This study was done to determine the incidence of cleft lip and palate. It is a single centered retrospective study. Data was collected from the patient record system used in a private dental institution and following parameters such as gender, type of cleft lip and palate, unilateral or bilateral was recorded. 86000 patient details were analysed between June 2019 to March 2020 out of which 74 patients who fulfilled the inclusion and exclusion criteria were included in the study. The data was statistically analysed using SPSS software. In this study, it was observed that cleft lip was most commonly seen in males and cleft palate in females. Unilateral cleft lip is common in both males and females. Incomplete cleft palate is more common followed by complete cleft palate. Orofacial defects are most commonly seen at the time of birth.
Gender predilection in oral cancer - A university based study
Authors: Preethi Mariona  , Mahathi Neralla  , Sreedevi Dharman
Published: October 2020

Oral cancer is said to be a malignant neoplasm of the oral cavity. It is defined as the uncontrollable growth of cells that invade and cause damage to the surrounding tissues. Oral cancer has a predilection for certain sites, most common being the lips, followed by the tongue, cheeks, floor of the mouth, hard and soft palate, sinuses, and pharynx. In general, a high male to female ratio of occurrence of oral cancer is seen. The main risk factors for oral cancer are smoking, alcohol, gutkha, paan and other factors such as cheek biting and sharp cusps also seem to influence the occurrence of oral cancer. The study aims at assessing the gender of patients who have been diagnosed with oral cancer to see if there is any predilection for oral cancer based on gender to occur. The study was done in a University set up in a Private Dental College, Chennai. This study was done retrospectively by analysing case records of patients who reported between the months of June 2019 to March 2020. Simple random sampling was done to minimize sampling bias. After reviewing, the case sheets were filtered based on the data required. The final sample size was 50 patients with oral cancer. The data pertaining to the gender of the patient was collected. It was observed that from those 50 patients with oral cancer, 78% of them were males and 22% of them were female. Chi-square test shows p>0.05, not significant. The study concludes that the males were affected more than females.
Prevalence of early childhood caries among preschool children - A retrospective study
Authors: Farhat Yaasmeen Sadique Basha  , Archana Santhanam  , Raj S S
Published: October 2020

Dental caries is one of the most common diseases affecting young children mainly caused by the streptococcus mutans when they act on sugary deposits on the enamel. The bacteria produces an acidic environment after breaking down the sugars, resulting in the onset of caries. When this affects children at a very young age, it is known as early childhood caries and it is a serious threat in developing countries. When left untreated it can affect the quality of life of a child. This study aims to determine the prevalence of early childhood caries among preschool children. A retrospective cross sectional study with a sample size 478 preschool children with early childhood caries who were randomly selected from June 2019 to March 2020 from the patients records. Data collected were tabulated with parameters: age, gender, number of affected anterior teeth, Number of missing teeth and number of filled teeth. The results were analysed using Chi-square test in SPSS software. The analysed data is represented as graphs. The most affected age group was five years [31.7%]. Boys seem to be affected more than girls [53.7% > 46.3%]. Affected anteriors were highest in age group 5. Average number of teeth affected were four. The most number of missing teeth was seen in children aged 5 years and the average number of missing teeth was 2. The average number of filled teeth in children aged 3 to 6 years was 5. This necessitates the need to implement preventive and curative oral health programs for preschool children.
Awareness on self-medications practices among dental students
Authors: Muralidharan  , Dhanraj Ganapathy  , Keerthi Sasanka
Published: October 2020

Self-medication is indeed a practice where patients select and use drugs for either the management of auto-diagnosed physically or mental health problems. It was defined as the ingestion of drugs without consultation with a qualified doctor. The purpose of the research was to evaluate the perceptions and degree of self-medication practice amongst first-year dental students. This questionnaire-based survey was conducted among 100 first-year undergraduate dental students in Chennai. The questionnaire had 11 questions eliciting the practice of self-medication patterns among the students. The responses were recorded and . 61% of the respondents have the habit of self-medication. 43% said that they take for a headache, 21% said that for stomach pain, for fever 25% take self-medication and the rest said that they visit a doctor without taking any self-medication. 56% preferred medication, 9% preferred , 12% preferred Ayurveda and the rest 23% preferred the homemade medicines. 41% use antibiotic drugs, 47%use drugs and the rest 12% use antihistamine drugs. Around 71% said that they were aware of a drug overdose and the rest 29% said they were not aware. Self-medication was primarily used by dental students mainly for minor ailments with over the counter drugs. From the survey, we can conclude that there is a large number of students 61 % have the practice self-medication and so awareness must be created on it.
Gender and Age Predilection in Single Tooth Implants
Authors: Gayathri K Rajpurohit  , Dhanraj Ganapathy  , Arthi Balasubramaniam
Published: October 2020

The ideal dentistry is not just to restore the function but also associated with esthetics and comfort of the patients is the reason why implants are gaining more popularity to replace the missing tooth. Implants work on the principle of bone healing, also called osseointegration that is a connection or a bond of the living bone with the implant both structurally and functionally. Implant placement can be affected by multiple reasons including the age, gender, Socioeconomic status, educational qualifications, health and knowledge about the treatment available. Thus, the present study evaluates the age and gender predilection for a single tooth implant placement. A total of about 260 patients with single tooth implants were assets, and the data were statistically analyzed using the SPSS software by IBM version 20. From the results obtained, it was observed that young adults of the age group 21-30 (36.2%) were the highest to undergo a single tooth implant. Male (65%) respondents were more when compared with the females (35%). Maximum single tooth replacement was done in mandibular posteriors mainly 36 (24.6%). From the above study, we could conclude that proper knowledge among the individuals is needed on the availability of the treatment. The treatment must be made more cost-efficient so that every individual in need for implants can access a better treatment of choice and lastly the prevalent group which are more prone for tooth loss must be screened and made aware of the future complications.
Colorometric study of polyamide-12 powder aging
Authors: Mokshina N. Ya. , Khripushin V. V. , Shcherbakova M. S.
Published: October 2020

The key point of 3D printing by selective laser sintering is the necessity of complete filling of the working chamber of the printer with a powder material. Since the powder is not completely consumed during the printing process, 25 – 30 wt.% of secondary (unused in the previous cycle) power is added to the primary material in each cycle. Repeated recirculation leads to degradation of the properties of the working powder mixture and increases the probability of rejects. We present the results of a colorimetric study of aging of polyamide-12 powder used in 3D printing by the method of selective laser sintering. Scanning and computer processing of digital images of primary and secondary polyamide powders obtained by colorimetry were performed using MathLab program package. Colorimetric analysis included the expression of the sample color using the parameters of color models applied in digital technologies for synthesizing colored images. The number of cycles before the onset of intensive destruction is no more than three, which is consistent with the practical experience in printing by selective laser sintering. The results characterizing change in the color of the secondary powder depending on the duration of thermal exposure and the gas medium are presented. It is shown that long-term storage of the powder for subsequent use is not advisable, since the initiators of destruction are already present in the material. Thermal oxidative destruction is shown to be a critical factor limiting the use of secondary powder along with changes in the crystallinity and fractional composition of particles. Computer processing of images of polymer powder obtained by the colorimetric method can be used to control the aging process of consumables and to predict the probability of rejections in 3D printing.
CONTROLLING AND MONITORING OF AUTOMATION WATER SUPPLY SYSTEM BASED ON IOT WITH THEFT IDENTIFICATION
Authors: Jaiad Ahmad T. , Ghayyib Hamzah Sabr
Published: October 2020

Water is the most precious and valuable because it’s a basic need of all the human beings but, now a day water supply department are facing problem in real time operation this is because less amount of water in resources due to less rain fall. With increase in Population, urban residential areas have increased because of this reasons water has become a crucial problem which affects the problem of water distribution, interrupted water supply, water conservation, water consumption and also the water quality so, to overcome water supply related problems and make system efficient there is need of proper monitoring and controlling system. In this project, we are focusing on continuous and real time monitoring of water supply in IOT platform. Water supply with continuous monitoring makes a proper distribution so that, we can have a record of available amount of water in tanks, flow rate, abnormality in distribution line. Internet of things is nothing but the network of physical objects embedded with electronics, sensors, software, and network connectivity. Monitoring can be done from anywhere as central office. Using Adafruit as free sever data continuously pushed on cloud so we can see data in real time operation. Using different sensors with controller and raspberry pi as Mini computer can monitor data and also control operation from cloud with efficient client server communication.
Analysis of Factors Causing Traffic Accidents on Sultan Agung Street, Bekasi
Authors: Rifai Andri Irfan , Aulia Eka Satria
Published: October 2020

Sultan Agung Street is the main road in Bekasi City which has a length of 5.5 km. On the Sultan Agung Street, there are many settlements and public facilities. However, this condition was not matched by adequate road infrastructure and public transportation facilities and infrastructure. This causes an increase in the volume of traffic and potential for accidents on Sultan Agung street. The purpose of this study was to determine the dominant causal factors of accidents and to determine efforts to prevent accidents on Jalan Raya Sultan Agung with the Upper Control Limit (BKA) and Upper Control Limit (UCL) methods.  Based on the analysis of Sultan Agung Bekasi Street included in the category of accident-prone roads because there are two road segments having AEK values ​​exceeding the BKA and UCL values. The coordinate point of the location with the highest AEK value is the third segment with an AEK value of 195 where the BKA value is 122,894 and the UCL value is 119,333. The most common type of accident is a Front-Rear hit by 37.5% of the total number of accidents. Time of accidents most often occurs at night with a percentage of 56% of the number of accidents.
Influence of printing direction on 3D printed ABS specimens
Authors: Markiz Nassim , Horváth Eszter , Ficzere Péter
Published: October 2020

In the recent years, additive manufacturing became an interesting topic in many fields due to the ease of manufacturing complex objects. However, it is impossible to determine the mechanical properties of any additive manufacturing parts without testing them. In this work, the mechanical properties with focus on ultimate tensile strength and modulus of elasticity of 3D printed acrylonitrile butadi-ene styrene (ABS) specimens were investigated. The tensile tests were carried using Zwick Z005 loading machine with a capacity of 5KN according to the American Society for Testing and Materials (ASTM) D638 standard test methods for tensile properties of plastics. The aim of this study is to investigate the influence of printing direction on the mechanical properties of the printed specimens. Thus, for each printing direction ( and ), five specimens were printed. Tensile testing of the 3D printed ABS specimens showed that the printing direction made the strongest specimen at an ultimate tensile strength of 22 MPa while at printing direction it showed 12 MPa. No influence on the modulus of elasticity was noticed. The experimental results are presented in the manuscript.
ВПЛИВ ЗАМІЩЕННОГО НІКОТИНАМІДУ ТА ЙОГО МОЖЛИВИХ МЕТАБОЛІТІВ НА АКТИВНІСТЬ ФЕРМЕНТІВ ОБМІНУ ЕТАНОЛУ
Authors: Кислова О. В.
Published: October 2020

To study the influence of N-phenyl-N-(1-cyclopropylethyl)nicotinamide and its possible metabolites: hydrochlorides of N-(1-cyclopropylethyl)amine and N-phenyl-N-(1-cyclopropylethyl)amine - on the activity of  main ethanol oxidation enzymes in vitro and kinetic nature of their interaction. The studies were carried out using alcohol dehydrogenase and aldehyde dehydrogenase of rat liver subcellular fractions, which were obtained by differential centrifugation. The enzyme activity was determined spectrophotometrically. The kinetic nature of alcohol dehydrogenase and isozyme form of aldehyde dehydrogenase  interaction with substituted nicotinamide was investigated in the concentration range of 25-100 μM. The research results were processed by the Lineweaver-Burk method. Studies have shown that N-phenyl-N-(1-cyclopropylethyl)nicotinamide is able to reduce the rate of the reverse alcohol dehydrogenase reaction of acetaldehyde reduction to ethanol in the presence of NADH by 46% with an inhibition constant 53 μM. The activity of soluble mitochondrial aldehyde dehydrogenase was suppressed by 50% with an inhibition constant 108 μM. The kinetic nature of the substituted nicotinamide interaction with enzymes at saturating concentrations of the reaction cofactors NADH and NAD+ is quite complex. Allosteric effects can play a significant role in enzymatic activity. Possible metabolites of the compound - hydrochlorides of N-(1-cyclopropylethyl)- and N-phenyl-N-(1-cyclopropylethyl)amine – didn`t significantly influence on ethanol metabolism enzymes activity. A new inhibitor of the rate of the reverse alcohol dehydrogenase reaction and the activity of soluble mitochondrial isozyme form of aldehyde dehydrogenase, which lead to the accumulation of acetaldehyde in the body, has been discovered. N-phenyl-N-(1-cyclopropylethyl)nicotinamide can be used as a potential antialcohol sensitizing drug after research in vivo.
АНАЛІЗ ОСОБЛИВОСТЕЙ ВНУТРІШНЬОЇ КОРОЗІЇ НАФТОПРОВОДУ ТА МЕТОДОЛОГІЯ ЇЇ ДОСЛІДЖЕННЯ МЕТОДОМ ПОЛЯРИЗАЦІЙНОГО ОПОРУ
Authors: Ниркова Л. І. , Осадчук С. О. , Борисенко Ю. В. , Макатьора Ф. М.
Published: October 2020

Development of methodology for research and evaluation of internal corrosion of low-carbon steel pipeline along the bottom moving line in a hydrocarbon medium with different water content. Visual inspection and polarization resistance method were used. Based on the analysis of the peculiarities of internal corrosion of oil pipelines, the methodology of its research has been developed. A laboratory testing facility is proposed and manufactured, which simulates the inner surface of the pipeline. The design of the polarization resistance sensor was improved by applying a moisture-retaining layer, which allowed to determine the corrosion rate in the oil-water emulsion. To increase the sensitivity of the sensor in this environment, additives are introduced into the moisture-retaining layer, which promote the absorption and retention of moisture. The influence of various additives on the sensitivity of the sensor has been studied, the method of applying the moisture-retaining layer, which is suitable for use, has been worked out. The minimum concentration of the additive was determined, at which a solid moisture-retaining layer resistant to the action of moisture was obtained. The methodology of research of internal corrosion of the oil pipeline along the bottom moving line on the basis of modeling in laboratory conditions of a surface of a pipe is offered and substantiated. A laboratory testing facility was made and the design of the polarization resistance sensor was improved, which made it possible to perform measurements in oil-water emulsion. This allowed to expand the scope of the method of polarization resistance for oil environments with low water content (from 50% to 5%). The design of the electrochemical two-electrode sensor of polarization resistance with the cosurface arrangement of electrodes on which the moisture-retaining layer is put and its composition is defined is improved. A solid layer resistant to air moisture is obtained. The sensor with a moisture-retaining layer is suitable for use in oil-water emulsion with water content from 50% to 5%.
ДОСЛІДЖЕННЯ ВПЛИВУ СВІТЛОСТАБІЛІЗАТОРІВ НА СВІТЛОСТІЙКІСТЬ ЗАБАРВЛЕНОГО АКТИВНИМИ БАРВНИКАМИ БАВОВНЯНОГО ТРИКОТАЖУ
Authors: Семешко О. Я. , Асаулюк Т. С. , Сарібєкова Ю. Г.
Published: October 2020

The goal of the work is to study the effect of light stabilizers on the lightfastness of colours of cotton knit fabric dyed with reactive dyes. The study was carried out using a cotton 1+1 rib knit fabric with a surface weight of 150 g/cm2, prepared by the combined technology of boiling and bleaching. Dyeing of the fibrous material was carried out using Bezaktiv reactive dyes in a batch method at a concentration of 0.3% by weight of the material. UV absorbers 2,5-dihydroxyacetophenone, 2,4-dihydroxybenzophenone, phenyl salicylate and antioxidants – diatomic phenols – hydroquinone, pyrocatechol and resorcinol were chosen as light stabilizers. In the work, the light stabilization of cotton knit fabric was carried out after dyeing with reactive dyes and washing the dyed knit material. The technological mode of application of the studied light stabilizers was to impregnate a knit fabric, drying and curing the material. The individual effect of light stabilizers on the colour change of dyed knit fabric samples and the photodestruction kinetics of dyes were investigated. The insolation of the samples was carried out on a device with a mercury-tungsten lamp RF 1201 BS ("REFOND"). After treatment and insolation, the total colour difference dE of knit samples were determined compared to untreated material using a TCR-200 colorimeter ("PCE Instruments"). The results obtained indicate that the change in the initial colours after treatment with light stabilizers depends on the colour of the dye and on the type of light stabilizer. The greatest colour changes are observed with phenyl salicylate, pyrocatechol and resorcinol. It has been established that UV absorbers exhibit a light-shielding effect to a greater extent than antioxidants. The obtained experimental results also indicate the need for the simultaneous use of UV absorbers and antioxidants in order to efficiently stabilize dyed cotton knit fabric. The individual effect of light stabilizers – UV absorbers and antioxidants – on the lightfastness of colours of cotton knit fabric dyed with Bezaktiv reactive dyes is investigated. It was established that for effective light protection of colours of cotton knit fabric dyed with reactive dyes, the simultaneous use of UV absorbers and antioxidants is necessary
Divertículo esofágico de tercio medio: Una causa infrecuente de disfagia
Authors: Moreno Alfonso Julio César , Eguaras Córdoba Inés , Yárnoz Irazábal María Concepción , Miranda Murua María del Coro
Published: October 2020

Mujer de 72 años estudiada por cuadro clínico de 1 año de disfagia e impactación con alimentos sólidos que han requerido tratamiento endoscópico. Se realiza endoscopia de vías digestivas altas que documenta un divertículo esofágico en tercio medio, manometría esofágica de alta resolución sin trastorno motor. El esofagograma (fig. 1) y la tomografía axial computarizada de tórax (fig. 2) muestran un divertículo en tercio medio de esófago lateral derecho de 7 cm de diámetro y base de 2.5 cm de diámetro. De manera programada se lleva a cabo diverticulectomía esofágica toracoscópica sin complicaciones.

 

Los divertículos esofágicos son una patología infrecuente, con una prevalencia de 0.06-4%(1-4). Suelen ser asintomáticos, y en caso contrario lo más frecuente es la disfagia(2-4). Los divertículos medio esofágicos se forman por mecanismo de tracción y se asocian a procesos inflamatorios crónicos del mediastino, fibrosis y trastornos motores del esófago en un 90% de los casos; sin embargo se desconoce si el trastorno motor es primario o secundario a la presencia del divertículo(1,2,4). Puesto que suelen ser asintomáticos el diagnóstico es habitualmente incidental mediante esofagograma u otras pruebas radiológicas o endoscópicas y no precisan tratamiento(1-4); no obstante, ante la presencia de síntomas el tratamiento de elección es la resección quirúrgica por toracoscopia o toracotomía(2-4).
Operaciones abdominopélvicas de emergencia en pacientes con COVID-19 en el Hospital Edgardo Rebagliati- EsSALUD
Authors: Vojvodic Hernandez Iván M. , Ortega-Checa David Alfredo , Pinares-Carrillo Daniel , Alemán-López Jorge , Aburto-Loroña Víctor
Published: October 2020

Introducción. La pandemia COVID-19 que se declaró el 11 de marzo de este año, se extendió desde China a todo el mundo rápidamente, y la gran cantidad de pacientes infectados ha saturado nuestro precario sistema de salud, lo que ha obligado a restringir la actividad quirúrgica electiva y de emergencia.

El objetivo del presente estudio fue describir las características clínicas y quirúrgicas de los pacientes con COVID-19 operados en el servicio de emergencia del Hospital Nacional Edgardo Rebagliati Martins - EsSalud.

Método. Se realizó un estudio descriptivo, observacional y retrospectivo, donde se incluyeron los pacientes con diagnóstico de COVID-19 operados por el servicio de emergencia, entre el 6 de marzo y el 8 de junio de 2020. Se analizan las características clínicas, hallazgos en los exámenes diagnósticos y características quirúrgicas.

Resultados. Se operaron de emergencia 26 pacientes y se realizaron 17 cesáreas, 4 apendicectomías, 2 resecciones intestinales con ostomía, una herniorrafia inguinal, una rafia vesical y una laparotomía exploradora. Todas tuvieron abordaje abierto. Los síntomas más frecuentes fueron tos y fiebre; 23% los pacientes fueron asintomáticos. El diagnóstico de COVID-19 se confirmó con pruebas rápidas o serológicas. En el grupo de patología abdominal se elevaron la proteína C reactiva y el dímero D más que en el grupo de cesáreas. Se encontró una complicación (infección del sitio operatorio) y no se observó fallecimientos.

Conclusión. La adopción de medidas restrictivas en la indicación quirúrgica en los pacientes en emergencia puede explicar la ausencia de complicaciones severas y fallecimientos en esta serie.
Cambio climático y su impacto sobre la salud humana
Authors: Petrone Patrizio
Published: October 2020

El “Panel intergubernamental sobre el cambio climático” de las Naciones Unidas (Intergovernmental Panel on Climate Change, IPCC), el máximo organismo científico mundial sobre el tema, publicó IPCC, 2018: Global Warming of 1.5°C 1. Más de 90 científicos de 40 países que revisaron 6.000 estudios prepararon el informe del IPCC en respuesta a una solicitud del acuerdo climático de París en 2015.
Futilidad en cirugía: el caso de la gastrostomía
Authors: Torregrosa Almonacid Lilian , Gómez María , Cuadrado Franco Daniela María , Gempeler Rueda Fritz Eduardo , Rugeles Quintero Saúl
Published: October 2020

Introducción. La nutrición se ha considerado tradicionalmente una necesidad básica y el garantizarla se ha asumido como una responsabilidad médica. Se cuestiona la utilización de procedimientos que permitan la nutrición artificial en situaciones clínicas limítrofes, en las cuales su beneficio puede ser limitado o nulo. En el presente estudio se busca determinar el éxito de un procedimiento quirúrgico, la gastrostomía, desde la perspectiva del beneficio para el paciente y, así, aproximarse a una definición de gastrostomía fútil.

Métodos. Se llevó a cabo un estudio observacional, retrospectivo y analítico, basado en la revisión de las historias clínicas de los pacientes sometidos a gastrostomía abierta o endoscópica en el Hospital Universitario San Ignacio. El grupo de investigadores principales analizaron los datos para determinar si las gastrostomías practicadas fueron fútiles o no lo fueron.

Resultados. Se incluyeron 145 pacientes tratados durante el periodo del 2015 al 2018 y en el 53 % de los cuales se cumplieron los criterios para considerar el procedimiento como fútil. Los procedimientos –108 endoscópicos y 37 abiertos–fueron practicados principalmente en pacientes con neoplasias de cabeza y cuello, y enfermedades neurológicas. Si bien no hubo mortalidad asociada con el procedimiento, 26 de los pacientes fallecieron en los primeros 15 días después de la intervención.

Discusión. El determinar en qué condiciones se debe considerar la gastrostomía una intervención realmente beneficiosa es un desafío. Es necesario incorporar un análisis ético, antes de ofrecer este procedimiento, con el fin de minimizar las gastrostomías innecesarias que actualmente constituyen un problema global.
Depresión y suicidio
Authors: Motoa-Solarte María Constanza , Velásquez-Lasprilla Martha Lucía
Published: October 2020

El foro de Ciencias de la Vida y la Salud de la Misión de Sabios creada por el actual Presidente de la Republica dio a conocer en diciembre pasado los resultados de la Gran Encuesta en Salud en Ciencia, Tecnología e Innovación. La encuesta, realizada en distintas regiones del país, reveló cifras y datos importantes con respecto al sistema de salud en Colombia. La salud mental es la gran preocupación: “Una de cada cuatro personas que respondieron la encuesta, manifestó sentirse triste y con un bienestar no adecuado en las últimas dos semanas”
Monumentalitas Seni Instalasi Bambu â€œGetah Getihâ€
Authors: Murwonugroho Wegig , Wiyoso Aghastya
Published: October 2020

Karya seni instalasi merupakan perpaduan dari berbagai seni rupa yang dipasang dengan maksud sebagai hiasan berdurasi terbatas. Seni instalasi bambu bernama â€œGetah Getihâ€ yang ditempatkan di seberang Bundaran Hotel Indonesia (HI) Jakarta merupakan karya Joko Dwi Avianto menurut ide Gubernur DKI Jakarta Anies Baswedan. Konsep â€œGetah Getihâ€ diinspirasi oleh sejarah keberanian, dedikasi, dan sifat rela berkorban pasukan kerajaan Hindu Majapahit yang baru mendarat demi kejayaan kerajaan. Konsep bambu yang disusun saling bertautan memiliki makna penyemangat para atlet yang berlaga di Asian Games 2018. Bahan bambu dipilih karena keunikannya di antara bangunan beton bertingkat di Jakarta. Namun, pemaknaan sebuah karya seni tidak bisa lepas dari fenomena yang sedang terjadi pada waktu karya tersebut dibuat. Jalinan bambu menimbulkan kontroversi saat sebagian masyarakat menganggapnya menyimbolkan posisi bersetubuh. Pemilihan bahan baku yang tidak awet juga menuai kritik keras. Pun demikian halnya dengan anggaran besar yang dianggap tidak sesuai dengan nilai fungsi karya seni. Maka, ekspektasi publik Jakarta untuk seni instalasi yang elegan, modern, dan bertahan lama tidak terpenuhi. â€œGetah Getihâ€ lantas dianggap sebagai pencitraan politik Anies belaka. Esensi kekecewaan terhadap â€œGetah Getihâ€ bersumber dari tuntutan hadirnya kemonumentalan seni yang dipajang di ruang publik. Indikator kemonumentalan dilekatkan pada seni instalasi yang bersifat temporer. Penelitian ini menggunakan metode pendekatan fenomenologi. Paradigma penilaian kemonumentalan dilihat dari wilayah ide/gagasan, ekspresi, komunikasi, dan apresiasi pewacanaan. Dari analisis ditemukan bahwa seni instalasi patung â€œGetah Getihâ€ yang diharapkan tidak monumental justru mencapai titik kemonumentalannya karena adanya kebaruan berupa unsur tak beraga yaitu pewacanaan melalui media sosial dan keterlibatan opini publik menerima atau menolak kehadirannya. Dengan demikian dapat disimpulkan bahwa kemonumentalan sebuah seni instalasi tidak sengaja dapat terbagun apabila diletakkan pada ruang sentral sebuah kota, banyak diakses publik secara langsung, dan ketepatan waktu ketika seni dijadikan komoditas yang dipertentangkan antar kubu politik.
Emotional Branding Dalam Strategi Pemasaran Kolaborasi : Studi Kasus Desain Kemasan Mizzu â€œKhong Guan Face Paletteâ€
Authors: Revias Purwa Kusuma Monica , Susanto Anom Purnomo Aji
Published: October 2020

Di era internet marketing saat ini, pengambilan keputusan pembelian sebuah produk tidak hanya bergantung pada fungsinya saja. Faktor emosional dan nilai artistik juga memiliki peran didalam proses tersebut. Hal ini membutuhkan strategi pemasaran yang kreatif dan inovatif agar sebuah produk sukses dalam pemasarannya. Penelitian ini bertujuan memaparkan fenomena strategi pemasaran yang dilakukan oleh Mizzu Cosmetics sebagai alternatif dalam merencanakan sebuah strategi pemasaran. Strategi pemasaran tersebut adalah strategi pemasaran kolaborasi yang dilakukan oleh Mizzu Cosmetics bersama biskuit Khong Guan dalam produk â€œKhong Guan Face Paletteâ€. Penelitian ini menggunakan metode penelitian deskriptif kualitatif berlandaskan fenomenologis dengan teori utama desain kemasan dan ditunjang oleh teori emotional branding serta teori strategi pemasaran. Dari hasil penelitian didapat strategi pemasaran kolaborasi yang kreatif dan inovatif memanfaatkan aspek emotional branding dari sebuah produk yang ikonik. Biskuit Khong Guan yang sudah lebih dulu lekat di benak konsumen dengan parodi dan meme hilangnya sosok ayah memberikan nilai tambahan pada produk Mizzu Cosmetics dalam desain kemasannya serta rangkaian kampanye yang dilakukan
Laporan Keempat Minggu Ketiga KKLP Posko Bontonompo
Authors: ibrahim irma devina
Published: October 2020

Kuliah Kerja Lapang Plus (KKLP) merupakan suatu kegiatan perkuliahan yag bersifat intrakurikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu. oleh karena, sifatnya intrakurikuler sehingga setiap mahasiswa yang akan menyelesaikan studi di perguruan tinggi pada suatu Program Strata Satu (S1) harus mengikuti KKLP.
Pyrroline-5-carboxylate reductase 1, PYCR1, is differentially expressed in non-small cell lung cancer and associates with patient survival.
Authors: Mamoor Shahan
Published: October 2020

Non-small cell lung cancer (NSCLC) is the leading cause of cancer death in the United States (1). We mined published microarray data (2, 3, 4) to identify differentially expressed genes in NSCLC. We found that the gene encoding pyrroline-5-carboxylate reductase 1, PYCR1, was among those whose expression was most quantitatively different in human NSCLC tumors as compared to the lung. PYCR1 expression levels were significantly increased in NSCLC tumors as compared to the lung, and higher expression of PYCR1 in patient tumors was significantly correlated with worse overall survival and decreased time to first progression. PYCR1 may be important for initiation or progression of non-small cell lung cancer in humans.
Strong CP Violation Tamed in The Presence of Gravity
Authors: Maes Stephane
Published: October 2020

In a multi-fold universe, gravity emerges from entanglement through the multi-fold mechanisms. As a result, gravity-like effects appear in between entangled particles that they be real or virtual. Long range, massless gravity results from entanglement of massless virtual particles. Entanglement of massive virtual particles leads to massive gravity contributions at very smalls scales. Multi-folds mechanisms also result into a spacetime that is discrete, with a random walk fractal structure and non-commutative geometry that is Lorentz invariant and where spacetime nodes and particles can be modeled with microscopic black holes. All these recover General relativity at large scales and semi-classical model remain valid till smaller scale than usually expected. Gravity can therefore be added to the Standard Model. This can contribute to resolving several open issues with the Standard Model. The strong CP violation problem is one of these issues: QCD predicts CP violation, yet no CP violation has ever been observed involving the strong interaction (when it occurs, it is for the weak interaction). In this paper we show that when adding gravity to the Standard Model, in a multi-fold universe, gravity allows the mass of the up quark to be smaller (close to, or equal to zero). This symmetry, or quasi symmetry, is a way to eliminate the CP violation contributions in QCD, therefore resolving the problem. It argues for evolving the Standard Model to add gravity, if non negligible at very small scales. No New Physics are introduced as new particles, which could also explain why axions have never been observed, and we may have to remove them as candidates to explain dark matter.
LAPORAN KKLP
Authors: syam Syahlan
Published: October 2020

Kuliah kerja lapang plus (KKLP) merupakan suatu kegiatan perkuliahan yang bersifat intrakurikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu. Oleh karna, sifatnya intrakurikuler sehingga setiap mahasiswa yang akan menyelesaikan studi di perguruan tinggi pada suatu program strata satu (S1) harus mengikuti kklp.
Laporan minggu ketiga kegiatan 5 KKLP posko Bontonompo
Authors: hidayah nurul
Published: October 2020

Kuliah Kerja Lapang Plus (KKLP) merupakan suatu kegiatan perkuliahan yang bersifat intrakurikuler dalam bentuk pengabdian pada masyarakat yang dilakukan oleh mahasiswa dalam jangka waktu tertentu. Oleh karena, sifatnya intrakurikuler sehingga setiap mahasiswa yang akan menyelesaikan studi diperguruan tinggi pada suatu program strata satu (S1) harus mengikuti KKLP.
Laporan mingguan ke 3
Authors: kasim Sri utami
Published: October 2020

Memanfaatkan hasil pertanian seperti pepaya muda di jadikan kripik
English Worksheet for Second Grade of MI NU Tasywiquth Thullab Salafiyyah (TBS) Kudus Year 1441–2 H. / 2020–1 CE
Authors: Setiawan Adib Rifqi
Published: October 2020

English Worksheet for Second Grade of MI NU Tasywiquth Thullab Salafiyyah (TBS) Kudus Year 1441–2 H. / 2020–1 CE
Laporan kegiatan keempat minggu ketiga posko bontonompo
Authors: asmelisari
Published: October 2020

Kuliah Kerja Lapang Plus (KKLP) Merupakan suatu Kegiatan Perkuliahan yang Bersifat intrakurikuler dalam bentuk pengabdian pada masyarakat yang di lakukan oleh mahasiswa dalam jangka waktu tertentu. Oleh karena, sifatnya intrakurikuler sehingga setiap mahasiswa yang akan menyelesaikan studi di perguruan tinggi pada suatu program strata satu (S1) harus mengikuti KKLP
Gereja dan Kemiskinan: Diskursus Peran Gereja di Tengah Kemiskinan
Authors: Ningrum Ratna
Published: October 2020

Analisis Jurnal, Materi Membaca Kritis dan Artikel Ilmiah
Laporan Minggu 3
Authors: Samsiah
Published: October 2020

TK TPA kami lakukan untuk membimbing santri dalam memperdalam ilmu agama
Laporan Minggu ke 3 kegiatan 4
Authors: risna
Published: October 2020

Kuliah Kerja Lapang Plus (KKLP) Merupakan suatu Kegiatan Perkuliahan yang Bersifat intrakurikuler dalam bentuk pengabdian pada masyarakat yang di lakukan oleh mahasiswa dalam jangka waktu tertentu. Oleh karena, sifatnya intrakurikuler sehingga setiap mahasiswa yang akan menyelesaikan studi di perguruan tinggi pada suatu program strata satu (S1) harus mengikuti KKLP
Police Performance Rankings Depend on the Functional Form of the Index: A Comment on Bearfield, Maranto and Wolf
Authors: Reed David S.
Published: October 2020

Bearfield, Maranto and Wolf (2020) advise policy-makers to measure policing outcomes using a metric that includes rates of homicide, police-related civilian deaths (PRCD) , and poverty. They present such an index, which they call the Police Performance Index (PPI). But alternative functional forms that are equally plausible can lead to different rankings of police departments, and therefore different policy conclusions.
Pengaruh Kepemimpinan Transformasional, Kepuasan Kerja Dan Komitmen Organisasional Terhadap Organizational Citizenship Behavior PT Sinergi
Authors: Maulana Roby Irzal
Published: October 2020

ABSTRACTThe purpose of this study is to determine the effect of transformational leadership, work satisfaction, and organizational commitment of organizational citizenship behavior. The study used all employes in PT. Sinergi as population. Sampling technique usedin this study is sensus method. Sample used in this study are 88 employes. Data collection methods used in this study is kuisioner and interview. This study applied multiple linear regression analysis with SPSS 21.0 for windows. The analysis shows that transformational leadership, work satisfaction, and organizational commitment has positive and significant effect on financial performance on employes in PT. Sinergi. To improve organizational citizenship behavior, it must pay attention to inspirational motivation, promotion opportunities and commitment afektive.Keywords: transformational leadership, work satisfaction, organizational commitment, organizational citizenship
Analisis Tingkat Kepuasan Masyarakat Melalui Pelayanan Informasi Pada Aplikasi KRL Access
Authors: Marginingsih Ratnawaty , Susilowati Isnurrini Hidayat , Widiyanti Wiwik
Published: October 2020

Transportation is a very important and strategic means of smoothing the wheels of the economy. Along with the increasing needs of urban communities for transportation in general, the railroad has become one of the alternative transportation options that are increasingly in demand by people with many advantages such as low pollution, free of traffic, mass, cheaper cost, and also relatively faster time. This study aims to determine the level of community satisfaction through information services on the KRL Access application. A total of 250 respondents were sampled as research using the convenience sampling method. The form of research used is descriptive research with a quantitative approach. The data is processed using multiple linear regression analysis. The results obtained by the level of community satisfaction through information services on KRL Access applications partially and simultaneously by using the variables of reliability, responsiveness, assurance, empathy and tangible obtain positive and significant results. This shows that good service is one of the keys to an organization's success because it will have a direct impact on the company's image.