bluuebunny/crossref_metadata_2025 huggingface dataset:
Correlation between Characteristics of Lymph Node Metastasis and Prognosis of N1-N2 Stage Non-small Cell Lung Cancer
Authors: Cheng Zewen , Wang Chuxu , Ju Sheng , Pan Shu , Liu Yu , Zhao Jun , Xu Chun
Published: May 2022

Objective: Patients with non-small cell lung cancer have prognostic heterogeneity, chief prognosis factor of them lymph node metastasis. Our study aimed to evaluate the correlation between lymph node ratio, the number of involved lymph node stations and skip-N2 metastasis and prognosis of N1-N2 stage non-small cell lung cancer. Methods: A total of 374 patients with N1 and N2 stage non-small cell lung cancer were retrospectively analyzed who underwent radical resection at the Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University from January 2012 to December 2019. Cox regression was conducted to identify the independent prognosis factors for N1-N2 stage non-small cell lung cancer. Survival curves were plotted by Kaplan-Meier method. Subgroup analyses were performed regarding proposals for the revision of the N descriptors in the 8th edition of the TNM classification. Results: Multivariate analysis of Cox regression model confirmed that smoking history, multiple-station lymph node metastasis and lymph node rate were independent prognosis factors for disease-free survival. Male, smoking history, multiple-station lymph node metastasis, lymph node ratio, adjuvant chemotherapy and targeted therapy were independent prognosis factors for overall survival. The 5-year overall survival was 57.4% in skip N2 group, while being 65.1% in N1 group (P=0.138) and 36.2% in the non-skip N2 group (P=0.007). Conclusion: Combined with lymph node ratio, the number of involved lymph node stations and skip metastasis, we can effectively predict the inter-subgroup survival difference.
What Works When Treating Children and Adolescents With Low Back Pain?
Authors: Leite Mariana N. , Kamper Steven J. , Broderick Carolyn , Yamato Tié P.
Published: May 2022

Background

Low back pain is a common health condition for all ages. One quarter to a third of children report persistent pain, including low back pain.

Clinical Question

The aim of this Clinical Commentary is to provide an overview of evidence-based treatment approaches for children and adolescents with low back pain.

Key Results

Physical, psychological, and pharmacological interventions are effective in reducing pain intensity and disability. Interdisciplinary and patient- and family-centered treatment approaches are the gold standard for persistent pain in children and adolescents. Communication between health professionals, children, and parents is a key part of a therapeutic alliance. The use of holistic and complementary therapies is not supported by compelling evidence.

Clinical Application

Physical interventions can be delivered alone or as a component of other interventions. The interventions are delivered over 8 to 12 weeks. Psychological therapies are mostly delivered as a component of a multidisciplinary treatment program: cognitive behavioral therapy is most often used, and interventions usually run from 4 to 10 weeks. Pharmacological interventions should be delivered in combination with physical and psychological interventions. Tailor family-centered interventions to personal aspects, such as age, gender, and family structure. When communicating with children and adolescents, use simple language that is clear and direct. Aim to support trust between health professionals and parents to facilitate family decision making. J Orthop Sports Phys Ther 2022;52(7):419–424. Epub: 18 May 2022. doi:10.2519/jospt.2022.10768
Outcome Domain and Measurement Instrument Reporting in Randomized Controlled Trials of Interventions for Lumbar Spinal Stenosis: A Systematic Review
Authors: de Luca Katie , Anderson David , Dutt Akash , Magennis Laura , Parrello Tienna , Ferreira Manuela L. , Chiarotto Alessandro
Published: May 2022

Objective

To describe outcome measurement instruments and outcome domains in randomized controlled trials of any interventions for lumbar spinal stenosis (LSS).

Design

Systematic review.

Literature Search

The Cochrane Central Register of Controlled Trials (CENTRAL) and PubMed were searched from inception to May 2020.

Study Selection Criteria

Trials were eligible if patients were diagnosed with LSS, with or without neurogenic claudication. Trials were eligible if they used at least 1 outcome measurement instrument.

Data Synthesis

Measurement instruments used in trials were extracted and then classified into outcome domains. We described the frequency of measurement instruments and outcome domains.

Results

After study screening, 29 trials were included. In total, 54 different individual outcome measurement instruments were used. The Visual Analogue Scale (59%; n = 17) and the Oswestry Disability Index (52%; n = 15) were the most frequently used outcome measurement instruments in trials; function (90%; n = 26) and pain (62%; n = 18) were the most common outcome domains.

Conclusion

In total, 54 different measurement instruments were used in trials of interventions for LSS. This diverse range of observations contributes to outcome instrument heterogeneity between trials and impedes the analysis of data due to lack of comparability. The most common outcome domains assessed were pain and function, which will help inform a core outcome measure set for symptomatic LSS. J Orthop Sports Phys Ther 2022;52(7):446–456. Epub: 18 May 2022. doi:10.2519/jospt.2022.10879
Search for Optimal 2D Models of the U-net Neural Network for Solving the Problem of Semantic Segmentation of Tomographic Images of Hydrate-Containing Samples
Authors: Kolesnik T. O. , Duchkov A. A.
Published: May 2022

The task of semantic segmentation of 2D-tomographic scans of hydrate-containing rocks is a multi-class classification of pixels of each input image in a set according to the classes “Granule”, “Fluid”, “Hydrate”. Now this is implemented in the form of segmentation by the “Granule” class using the convolutional architecture of the U-Net neural network and classification of pixels unclassified as “Granule” into the “Fluid” and “Hydrate” classes by the threshold value of pixel intensity.

Considering the limited processing time of a large volume of tomographic data, it is necessary to find a compromise between the complexity of the model and the quality of segmentation. On the other hand, it is also required to propose a second, simpler implementation of the network, to extend it to a 3D segmentation model.

The solution of these optimization problems is achieved by tuning the hyperparameters of the U-Net model. To determine which set of network hyperparameters is the best in a particular case, a partial search was performed over the hyperparameter grid, limited by the variables responsible for:

1) the number of trained filters in convolution operations;

2) learning the biases vector for output channels from convolutional operations;

3) choosing an algorithm to increase the resolution in the network decoder part.

This article describes the process of finding optimal models and provides an assumption about the possibilities for their improvement.
Decision Support Systems Utilization in Forestry: Environmental Aspect
Authors: Vasenev M. Yu.
Published: May 2022

In this paper, the actuality of utilization of informational technology in forestry is underlined. There is noted, that the technical and technological modernization within the frameworks of “Industry 4.0” for this sector is required. There are described methods, which give the potential to reduce forest machines' negative influence on the environment. There is emphasized, that the maximal damage to soils is inflicted by wheel propellers. There is proposed to use decision support systems (DSS) for the control process improvement and simplification on the territory, intended for cutting. There is given the system structure, main elements, and theirs principles of functioning are described. There are proposed some performance characteristics for the measurement of changes in consequence of the implementation of the depicted DSS, among them: response time on an incident from the moment of detection, situation analysis time, clearing time, and track depth, created by forest machine. There is made the simulation of an array of situations, stressing an efficiency of DSS use, such as: a) Can one reduce a soil purification time from oil products? b) Can one prevent an exceeding of the required track depth level? There is considered an impact of this DSS on existing indices of “Industry 4.0”. There are substantiated conclusions about the reasonability and efficiency of this DSS usage in forestry. There is noticed, that the DSS application to some extent allows preventing the erosion of forest soils, also to warn a diminishing of fertility, created by the irrational use and chemical pollution.
Method for Tsunami Wave Kinematics Modeling in a Gridded Area
Authors: Marchuk An. G.
Published: May 2022

The new method for the tsunami travel times calculation to the nodes of rectangular grid was developed and tested. The algorithm is based on constructing of the wave front segment inside the grid cell using tsunami arrival times to the cell corners. Testing the method proposed shows the better quality of the wave-front line approximation as compared to the existing method developed by the author earlier.
Immuno-oncological era of breast cancer: A progressive path to better treatment
Authors: Rao Smitha , Mayilvaganan Sabaretnam
Published: May 2022

Breast cancer was initially thought to be less immunogenic; however, extensive studies in recent years have transcended into one having high mutagenic potential. The molecular classification of breast cancer has taken giant strides, as to having subtypes in triple negative breast cancer (TNBC) as proposed by Lehmann and group. This recent development has been studied extensively in the immunotherapy trials, the most recent one being the IMPASSION 130 trial which introduced the drug – Atezolizumab. In addition, tissue infiltrating lymphocytes have also been researched in the treatment of residual tumors in post-neoadjuvant scenarios. Vaccines, CART cell therapy, and antibodies are being developed in breast cancer just like the immunotherapeutic strategies in other cancers. This review is an attempt to present the ongoing developments in the field of immunotherapy in breast cancer with highlights in TNBC’s, metastatic breast cancer, and hereditary BRCA positive cancers in particular.
PERAN BANK SYARIAH TERHADAP PEMBIAYAAN UMKM DI MASA PANDEMI COVID-19
Authors: Fuan Ertiyant Wulanda , Nur Latifah Fitri
Published: May 2022

Usaha Mikro Kecil dan Menengah (UMKM) berperan penting dalam perekonomian di Indonesia, seperti dapat mengatasi beberapa permasalahan misalnya, masalah pengangguran, penyerapan tenaga kerja dan peningkatan inovasi. Sehingga dapat memberikan peluang bagi masyarakat untuk membuka usaha lainnya dan menyediakan lapangan pekerjaan. Peluang tersebut harus diiringi dengan usaha dan biaya. Namun terdapat kendala bagi pelaku usaha mikro dalam mengembangkan usaha dan meningkatkan pendapatan salah satunya adalah modal. Masalah permodalan ini berlaku untuk semua kalangan pelaku UMKM yang ada saat ini, keterbatasan modal yang dialami UMKM berimbas pada kegiatan operasi dan menjadi permasalahan yang serius dan dapat membatasi potensi perluasan usaha dan kurang adanya inovasi dalam usaha. Tujuan dari penelitian ini untuk mengetahui seberapa penting peran Bank Syariah Indonesia terhadap pembiayaan UMKM di masa pandemi Covid-19. Observasi, wawancara, dan dokumentasi digunakan untuk mengumpulkan data dalam penelitian ini. Wawancara dengan narasumber dari Bank Syariah Indonesia KC Sidoarjo A. Yani digunakan untuk mengumpulkan data primer. Hasil penelitian ini menunjukkan bahwa peran BSI KC Sidoarjo A. Yani dalam memberdayakan usaha kecil dan menengah (UMKM) memungkinkan bank untuk meningkatkan dan mengembangkan usahanya dengan memberikan pendanaan dan memfasilitasi aplikasi pembiayaan Murabahah.
Déclin dans le nombre et la taille des populations d’Omphiscola glabra dans le nord de la Haute-Vienne au cours des trente dernières années
Authors: Dreyfuss Gilles , Vignoles Philippe , Rondelaud Daniel
Published: May 2022

Des investigations de terrain ont été réalisées en avril ou en mai pendant deux années (2013-2014) dans 77 fermes situées dans le nord de la Haute-Vienne pour décompter les populations d’Omphiscola glabra, déterminer la superficie de leurs habitats et préciser la densité des limnées transhivernantes par rapport aux sept types d’habitats. Les résultats ont été comparés avec ceux fournis par une première série d’investigations effectuée dans les mêmes fermes et sur les mêmes mois entre 1976 et 1984. Par rapport aux valeurs notées avant 1985, 76 % des populations (sur 54) vivant dans les jonchaies de pente et 46,5 % (sur 71) de celles qui colonisent les fossés de route ont disparu en 2013-2014. Les baisses les plus faibles ont été relevées dans les rigoles (5,6 % sur 322 avant 1985) et les fossés de drainage superficiel (8,2 % sur 49). La superficie des habitats ne présente pas de différence significative entre les deux périodes, quel que soit leur type. Par contre, les densités des mollusques transhivernants dans les habitats situés dans les fossés de route, les fossés de drainage et sur les berges d’étang sont significativement plus faibles en 2013-2014. Dans les trois autres types de gîtes, les différences entre les densités ne sont pas significatives. Ce déclin dans le nombre et la taille des populations d’O. glabra au cours des trente dernières années est principalement dû au gyrobroyage de la végétation autour des sources de pente, au curage mécanique des fossés de route ou à la réalisation d’un drainage souterrain dans les pâtures.
Electron Beam Transparent Boron Doped Diamond Electrodes for Combined Electrochemistry – Transmission Electron Microscopy
Authors: Hussein Haytham , Wood Georgia , Houghton Daniel , Walker Marc , Han Yisong , Zhao Pei , Beanland Richard , Macpherson Julie
Published: May 2022

The majority of carbon based transmission electron microscopy (TEM) platforms (grids) have a significant sp2 carbon component. Here, we report a top down fabrication technique for producing freestanding, robust, electron beam transparent and conductive sp3 carbon substrates i.e. boron doped diamond (BDD) using an ion milling/polishing process. X-ray photoelectron spectroscopy and electrochemical measurements reveal the sp3 carbon character of the diamond and advantageous electrochemical properties of a BDD electrode are retained during the milling process. TEM diffraction studies show a dominant (110) crystallographic orientation. Compared with conventional carbon TEM films on metal supports, the BDD-TEM electrodes offer superior thermal, mechanical and electrochemical stability properties. For the latter, no carbon loss is observed over a wide electrochemical potential range (up to 1.80 V vs RHE) under prolonged testing times (5 hrs) in acid (comparable with accelerated stress testing protocols). This result also highlights the use of BDD as a corrosion free electrocatalyst TEM support for fundamental studies, and in practical energy conversion applications. High magnification TEM imaging demonstrates resolution of isolated, single atoms on the BDD-TEM electrode during electrodeposition, due to the low background electron scattering of the BDD surface. Given the high thermal conductivity and stability of the BDD-TEM electrodes, in-situ monitoring of thermally induced morphological changes is also possible, shown here for the thermally induced crystallization of amorphous electrodeposited manganese oxide to the electrochemically active gamma-phase.
Facilitating field-effect transistor based (bio)sensor research with a miniaturized bipotentiostat
Authors: Filipiak Marcin Szymon , Wróblewska Maria , Suranglikar Mohit , Stratmann Lutz , Heery Brendan
Published: May 2022

Field-effect transistors (FETs) have been around for more than half a century and are at the heart of everyday electronics, but field-effect transistor based (bio)sensors are an emerging field with a huge potential that is yet to be explored. These (bio)sensors are useful in the detection of various analytes including ions, small organic molecules, DNA, proteins, and cells. However, the equipment such as parameter analysers or source meters used to characterize FET-based (bio)sensors is typi-cally bulky, expensive and complex, limiting the access to their research and development. There is a need for a compact and portable solution to this problem. It is worth noting that an answer to this conundrum may lie in the knowledge gap between the research communities of electrical/material engineers or physicists working on FETs and the electrochemists focused on potentiometry, which herein we aim to bridge. We present an economical and versatile solution based on an original equipment manufacturer (OEM) product from a leading portable potentiostat developer – PalmSens. Together with their engineers, we repurpose the flexible and affordable EmStat Pico bipotentiostat module to measure a variety of differ-ent commercially available FET sensor architectures – starting from a simple metal-oxide-semiconductor FET (MOSFET) which is then used as a transducer in extended-gate configuration. We then move towards a more complex ion-sensitive FET and a state-of-the-art single-sheet graphene electrolyte gated FET. Using a simple proprietary scripting language, we perform proof-of-concept experiments aimed at popularizing the FET field among electrochemists. We believe that using the EmStat Pico module can help accelerate FET-based (bio)sensor research and bridge the knowledge gap between FET researchers: physicists, electrical/material engineers and chemists. On top of that, the mentioned bipotentiostat is ready to implement in an end-user device, accelerating the commercialization of FET (bio)sensors for e.g. medical diagnostics.
High-field NMR, reactivity, and DFT modeling reveal the gamma-Al2O3 surface hydroxyl network.
Authors: Merle Nicolas , Tabassum Tarnuma , Scott Susannah , Motta Alessandro , Szeto Kai , Taoufik Mostafa , Gauvin Régis , Delevoye Laurent
Published: May 2022

Aluminas are strategic materials used in many major industrial processes, either as catalyst supports or as catalysts in their own right. The transition alumina gamma-Al2O3 is a privileged support, whose reactivity can be tuned by thermal activation. This study provides an qualitative and quantitative assessment of the hydroxyl groups present on the surface of gamma-Al2O3 at three different dehydroxylation temperatures. The principal [AlOH] configurations are identified and described in unprecedented detail at the molecular level. The structures were established by combining information from high-field 1H and 27Al solid-state NMR, IR spectroscopy and DFT calculations, as well as selective reactivity studies. Finally, the relationship between the hydroxyl structures and the molecular-level structures of the active sites in catalytic alkane metathesis is discussed.
Glycosylation and the global virome
Authors: Pegg Cassandra , Schulz Benjamin , Neely Benjamin , Albery Gregory , Carlson Colin
Published: May 2022

The sugars that coat the outsides of viruses and host cells are key to successful disease transmission, but they remain understudied compared to other molecular features. Understanding the comparative zoology of glycosylation - and harnessing it for predictive science - could help close the molecular gap in zoonotic risk assessment.
Facial prosthesis fabricated from dental material for an exposed reconstruction
plate: A clinical report
Authors:   Department of Maxillofacial
            Prosthetics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo,
            Japan., Zhang Fan , Hattori Mariko ,   Department of Maxillofacial
            Prosthetics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo,
            Japan., Sumita Yuka ,   Department of Maxillofacial
            Prosthetics, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo,
            Japan.
Published: May 2022

Facial prostheses are often fabricated for cosmetic and psychological reasons for
patients with facial defects after tumor resection. Each case is unique, and fabricating
a facial prosthesis that is tailored to the individual patient requires use of specific
materials and a degree of flexibility. This article describes a facial prosthesis that
was made using an Adams clasp and acrylic resin for an elderly patient with metal
exposure after mandibulectomy.
Risiko Pajak dan Penghindaran Pajak Berdampak Pada Kebangkrutan Perusahaan : Tinjauan Sistematis
Authors: Susilawati Illa , Kustiawan Memen , Prawira Ida Farida Adi
Published: May 2022

The study aims to explain the condition of a corporation if it performs tax evasion as to whether the company remains in good condition or bad condition. This study uses the Systematic Literature Review (SLR) method by reviewing several journals with national or international standards that have been published within a period of 10 years starting from 2013 to 2021. The results of this study suggest that tax avoidance and tax risks have no effect on company bankruptcy. This is because internal and external control of the company effectively encourages the management to make good tax plans and adherence to tax evasion, so that the policies that have been established do not adversely affect the company in the future. It is hoped that the study will further explore the relationship between tax avoidance and the deep risk of bankruptcy, by viewing more tax accounting strategies that facilitate it and make reference to future research.
“城市双修”理念下的城市道路设计策略
Authors: 小峰 张
Published: May 2022

城市双修理念是城市规划中的新型理念，其核心思想是减少城市规划对生态环境造成的破坏，规划与开发工作朝着生态友好的方向发展。分析城市双修理念内涵，明确其与城市道路设计之间的关系，试图提出城市道路设计工作中运用城市双修理念的相关策略。以供参考。
Job Involvement and Quality of Work Life Among Non-Permanent Teachers
Authors: Anindyta Adhelya , Anggraini Dewi
Published: May 2022

Kualitas kehidupan kerja dalam pendidikan penting untuk pengembangan keberhasilan siswa dan kinerja guru yang efektif. Penelitian ini bertujuan untuk melihat pengaruh keterlibatan kerja terhadap kualitas kehidupan kerja di kalangan guru tidak tetap. Populasi penelitian ini adalah 272 guru tidak tetap yang mengajar di SMK Negeri Bandar Lampung. Sampel penelitian sebanyak 152 guru dengan teknik kuota sampling. Instrumen yang digunakan adalah skala kualitas kehidupan kerja dan skala keterlibatan kerja. Analisis data menggunakan regresi sederhana. Hasil penelitian menunjukkan bahwa keterlibatan kerja berkontribusi terhadap kualitas kehidupan kerja. Ketika guru terlibat dalam semua kegiatan pendidikan maka kualitas kehidupan kerja mereka juga meningkat
The Mystery of Vínarterta: In Search of an Icelandic Ethnic Identity
Authors: Helgason Jón Karl
Published: May 2022

ABSTRACT: Does there exist a distinct Icelandic ethnic identity in contemporary Canada?
To what degree is it similar and to what degree is it different from the traditional
Icelandic national identity? Referring to poetry, telepathic messages and works of
scholarship, as well as interviews with Canadians of Icelandic origin, this paper
tackles these questions. A special emphasis is placed on what Herbert J. Gans has
defined as “ethnic symbols,” such as linguistic ethnic markers, ceremonial holidays and ethnic food. Some of these
symbols, in particular the pastry known as “vínarterta”, suggest not only how different Icelandic ethnic identity in Canada is from Icelandic
national ethnicity, but they also reveal the dire necessity for it to be so.
¿La progesterona natural micronizada previene el trabajo de parto pretérmino?: Revisión sistemática de literatura
Authors: Villamizar-Jiménez María Alejandra , Wandurraga-Vargas Valentina , Vargas-Rey Javier Enrique , Guarín-Serrano Rocío
Published: May 2022

Introducción. La progesterona es una hormona que favorece el mantenimiento del embarazo, es la protagonista de la fisiopatología del trabajo de parto pretérmino. De esta manera, se propone realizar una revisión sistemática que permita demostrar la utilidad de la progesterona natural micronizada en la mitigación de los efectos deletéreos del trabajo de parto pretérmino. Metodología. Revisión sistemática en la que se utilizaron los términos “MeSH” y “No – MeSH”.  Se empleó el programa “Publish or Perish” y bases de datos como: Medline, PubMed, Embase, Clinical Key, Cochrane Library, Scopus y Google Scholar. Se incluyeron artículos de revisión, meta-análisis, artículos originales (publicaciones preliminares o completas), resúmenes de congresos, seminarios publicados, libros de texto, protocolos hospitalarios regionales y consensos nacionales, en donde cada autor evaluó individualmente cada artículo y aplicó la herramienta CASPE. Resultados. En la literatura no es posible encontrar pautas concisas internacionales sobre el uso de la progesterona micronizada frente a la amenaza de trabajo de parto pretérmino (TPP). En general, para la mitigación del trabajo de parto, según lo analizado por los autores, se recomienda usar progesterona natural micronizada en cápsulas de 100 a 400 mg/día vía oral o 100 a 200 mg cada 12 a 24 horas vía vaginal. Desde la semana 16 hasta la semana 36 de gestación por vía oral y desde la semana 24 a 34 de gestación por vía vaginal. Discusión. El uso de la progesterona micronizada ha demostrado mitigar complicaciones posteriores al trabajo de parto pretérmino, sin embargo, no hay consenso sobre la dosificación y las vías de administración. Sumado a lo anterior, los estudios analizados pueden contener sesgos, por lo que se deja a elección del clínico el uso este medicamento. Conclusiones. La progesterona natural micronizada podría ser empleada para mitigar el trabajo de parto pretérmino según los artículos analizados por los autores a lo largo de la revisión. Sin embargo, se necesitan más estudios para legitimar dicha hipótesis.
Relación entre traqueostomización y supervivencia en pacientes sometidos a ventilación mecánica con sintomatología respiratoria sugestiva de COVID-19 en Cartagena, Colombia
Authors: Gómez-Cardona Efraín Antonio , Díaz-Hernández Daniela , Borré-Naranjo Diana Patricia , Dueñas-Castell Carmelo , Lozada-Martínez Iván David , Picón-Jaimes Yelson Alejandro , Muñoz-Murillo Katherine Lizeth
Published: May 2022

Introducción. La COVID-19 ha sido una de las enfermedades que ha generado mayor carga de enfermedad en el siglo XXI. A la fecha, se estiman más de 280 millones de casos a nivel global. Aún se desconocen muchos aspectos de esta condición, lo que ocasiona controversias sobre el abordaje de pacientes críticamente enfermos. La traqueostomía es una intervención que ha demostrado ser beneficiosa en el manejo de enfermedades respiratorias, sin embargo, existe un vacío en la evidencia sobre la efectividad y seguridad de esta intervención en pacientes críticamente enfermos de COVID-19. Por lo anterior, el objetivo de este estudio consistió en relacionar el tiempo transcurrido desde el inicio del cuadro clínico, durante la intubación y los días de ventilación mecánica, hasta la realización de la traqueostomía, con la supervivencia de pacientes con síntomas sugestivos de COVID-19. Metodología. Estudio retrospectivo de corte transversal, realizado entre marzo del año 2020 y febrero del año 2021 en dos centros hospitalarios de cuarto nivel de la ciudad de Cartagena, Colombia. Incluyó pacientes mayores de 18 años que ingresaron a la unidad de cuidados intensivos por requerimiento de ventilación mecánica invasiva por sintomatología respiratoria viral. Se excluyeron aquellos con historias clínicas incompletas e internados por otras causas respiratorias. Resultados. Un total de 122 pacientes fueron incluidos en el estudio con una mediana de edad de 63 años (RIQ 22; 20-89), siendo el 66.4% (n=81) hombres. No se encontró una correlación significativa entre el número de días desde el inicio del cuadro clínico hasta realización de la traqueostomía (p=0.12), ni entre el tiempo transcurrido desde la intubación endotraqueal hasta la realización de la traqueostomía, con respecto a la supervivencia (p=0.53). Pero sí entre el número de días de ventilación mecánica invasiva y el desenlace final (p=0.02). Discusión. Aunque se ha reportado que la traqueostomía es uno de los procedimientos que acarrea mayores riesgos en el manejo del paciente con sintomatología respiratoria severa, durante la pandemia por COVID-19 la literatura describe que esta intervención aumenta la supervivencia, disminuye el tiempo de requerimiento de ventilación mecánica y reduce la estancia en unidad de cuidados intensivos. El número de complicaciones es muy bajo en comparación al beneficio que otorga y se observó que el comportamiento local es muy similar al reportado en la literatura. Conclusiones. El tiempo desde el inicio de los síntomas o de la intubación endotraqueal hasta la realización de traqueostomía no se correlaciona con la supervivencia de pacientes con sintomatología respiratoria sugestiva de COVID-19 que se encuentran bajo ventilación mecánica y traqueostomizados.
Barreras de acceso a la telemedicina en tiempos de COVID-19, un desafío profesional y gubernamental
Authors: Barragán-Vergel María Fernanda , Ortiz-Labrador Jorge Andrés
Published: May 2022

Estimada Editora:
La pandemia secundaria a la infección por SARS-CoV-2 (COVID-19) aisló durante meses al mundo y produjo un impacto en las cifras de morbilidad y mortalidad. Al 27 de agosto de 2021 se han reportado a nivel mundial 215,047,649 casos y 4,480,486 muertes. En Colombia, para la misma fecha se reportaron 4,899,085 casos y 124,567 muertes (1). Entre las medidas sanitarias para disminuir la propagación de la infección se implementó el aislamiento obligatorio, condición que impulsó a todos los sectores a generar transformaciones. Para el caso del sistema de salud, entre sus estrategias se generó una rápida implementación de la telemedicina (TM).
El término TM se introdujo en 1970 como la “curación a distancia”, definida por la Organización Mundial de la Salud como “la prestación de servicios de atención médica mediante el uso de tecnologías de la información y la comunicación para realizar un diagnóstico, tratamiento y prevención de enfermedades” (2). Los objetivos de la TM son mejorar la calidad del servicio de salud, reducción de los costos de transporte, disminución de los tiempos de espera para la atención y brindar mayor oportunidad de atención a zonas geográficas distantes. Sumado a lo anterior, en el contexto de la pandemia permitió disminuir la exposición a la infección en los pacientes y profesionales en salud (3,4).
Apache Hadoop Architecture, Applications, and Hadoop Distributed File System
Authors: Giri Pratit Raj , Sharma Gajendra
Published: May 2022

The data and internet are highly growing which causes problems in management of the big-data. For these kinds of problems, there are many software frameworks used to increase the performance of the distributed system. This software is used for the availability of large data storage. One of the most beneficial software frameworks used to utilize data in distributed systems is Hadoop. This paper introduces Apache Hadoop architecture, components of Hadoop, their significance in managing vast volumes of data in a distributed system. Hadoop Distributed File System enables the storage of enormous chunks of data over a distributed network. Hadoop Framework maintains fsImage and edits files, which supports the availability and integrity of data. This paper includes cases of Hadoop implementation, such as monitoring weather, processing bioinformatics.
Application of Different Fertilizers Type and Concentration on Growth and Yield of Pakcoy (Brassica Rapa L.) in Hydroponic System
Authors: Fatiha Andhini Siti , Walsen Anthony , Rehatta Herman
Published: May 2022

Nutrition is an important factor for pakcoy cultivation in a hydroponic system so that the growth media should contain appropriate concentration of micro- and macronutrient to support plant growth. This study has been done to determine the different effect of the different liquid organic fertilizer type and concentration compared to AB Mix fertilizer on the growth and yield of pakcoy grown with the Hydroponic System. The experiment was conducted by using completely randomized design consisting of 9 combination treatments of type and concentration of liquid fertilizer.  The treatments were AB Mix Fertilizer with a concentration of 10 ml/l, 12 ml/l, 14 ml/l; Meroke Liquid Fertilizer with a concentration of 16 ml/l, 18 ml/l, 20 ml/l; and Nasa Liquid Organic Fertilizer with a concentration of 5 ml/l, 10 ml/l, 15 ml/l. The results showed that the application of 20 ml/l of Meroke liquid fertilizer significantly increased plant height, number of leaves, leaf area, plant fresh weight, and plant dry weight compared to another treatments. However it did not affect root length.
REGRESI PANEL TINGKAT PENGANGGURAN TERBUKA KABUPATEN/KOTA PROVINSI NUSA TENGGARA BARAT
Authors: Yulianto Safaat , Kurniawan Dinar Ade
Published: May 2022

The main problems that developing countries facing especially Indonesia is the problem of job-field limitations. Increasing the number of people followed by increasing labor force will increase unemployment if it does not balance with increasing in job opportunities. Some research has been conducted to examine factors that affect the unemployment rate, especially open unemployment. The open unemployment may differ from one area to another, as well as changes from time to time, so open unemployment level problems are more accurately analysed using the panel data regression. A significant factor affecting the open unemployment rate in the Southeast Nusa Province is the percentage of the poor and the percentage of the working people 15 years old above high school.
ANALISIS PEMETAAN SARANA DAN PRASARANA PENDIDIKAN DI KABUPATEN MALUKU TENGAH DENGAN MENGGUNAKAN METODE MULTIDIMENSIONAL SCALING
Authors: Lasamahu Dedy S. , Lembang Ferry Kondo , Sinay Lexy J.
Published: May 2022

Pemetaan sarana dan prasarana pada pendidikan telah dijalankan oleh pemerintah selama ini, namun fakta  menunjukkan  bahwa  banyak di antaranya yang kurang memadai dari sisi pemetaan. Penelitian ini bertujuan untuk mengidentifikasi karakteristik yang mempengaruhi sarana dan prasarana pendidikan pada tiap kecamatan di Kabupaten Maluku Tengah dengan membuat pemetaan karakteristik sarana dan prasarana sehingga membantu pemerintah dalam penyesuian bantuan. Digunakan analisis multidimensional scaling, untuk menampilkan objek dan variabel secara simultan (sekaligus) dalam ruang multidimensi dan membandingkan objek berdasarkan kemiripan dan ketidakmiripan pada peta geometri. Hasil yang diperoleh yaitu hal yang mempengaruhi sarana dan prasana pendidikan di Kabupaten Maluku Tengah adalah jumlah Sekolah Menengah Pertama (SMP), jumlah Sekolah Menengah Atas (SMA), jumlah perpustakaan SMP, jumlah perpustakaan SMA, jumlah laboratorium komputer SMP dan jumlah laboratorium komputer SMA yang jumlah bangunannya sangat sedikit. yakni di Kecamatan Pulau Haruku, Kecamatan Amahai, Kecamatan Banda, Kecamatan Tehoru, Kecamatan Telutih dan Kecamatan Teluk Elpaputih. Sedangkan untuk sarana dan prasarana pendidikan di Kabupaten Maluku Tengah yang tidak terpengaruh adalah jumlah Sekolah Dasar (SD) dan jumlah perpustakaan SD. Dengan kesesuaian nilai STRESS sebesar 6,9% dan R2 sebesar 99,95% artinya peta analisis multidimensional scaling yang diperoleh dapat diterima.
PERAMALAN TINGKAT KEMISKINAN DI PROVINSI MALUKU MENGGUNAKAN METODE EXPONENTIAL SMOOTHING
Authors: Latumahina Dephie , Manuputty Angel , Waliulu Megawati Z. , Patiekon Rahania , Siwalette Rensya
Published: May 2022

Kemiskinan adalah situasi yang serba terbatas yang terjadi bukan atas kehendak orang yang bersangkutan. Kemiskinan yang dibilang ekstrim ada di semua kabupaten dan kota di Provinsi Maluku.Pemerintah menetapkan ada 5 kabupaten pada tahun anggaran 2021 yang menjadi contoh dalam upaya penanganan pemerintah. Kabupaten tersebut ialah kabupaten Maluku Tengah, Seram Bagian Timur, Kepulauan Tanimbar, Maluku Tenggara dan Maluku Barat Daya. Pada penelitian ini digunakan data tingkat kemiskinan di Provinsi Maluku tahun 2005-2020. Proses penelitian ini menggunakan metode pemulusan eksponensial, yang digunakan untuk memprediksi tingkat kemiskinan di Provinsi Maluku tahun 2021-2025. Diperoleh metode terbaik untuk peramalan tingkat kemiskinan di Provinsi Maluku adalah metode Holt Linier. Hasil peramlalan tahun 2021-2025 berturut-turut yaitu: Tingkat kemiskinan di Provinsi Maluku pada tahun 2021 diperkirakan sebanyak 18.14, 18.29, 18.44, 18.59, 18.74.
The Perils of the Boomerang Effect: White House Messaging to Deter Border Crossing Backfires
Authors:   Barry University, Valentin-Llopis Mariely , Delgado Jessica ,   Florida International University
Published: May 2022

The Boomerang Effect explains how a given persuasive message produces attitude change in the direction opposite to that intended. We seek to explain how the convergence of Central American migrants at the southwest border since 2014 is, in part, produced by the United States (U.S.) White House messaging misstep. We propose a bottom-up persuasive approach to effectively spread awareness of the dangers of unauthorized border crossing. Instead of state authority voices, local native voices can effectually convey the message. The bottom-up approach of persuasion is a foundational strategy to effectively design a public awareness campaign focusing on ethos. The objective is not to stop immigration, but to educate migrants to (a) identify propaganda and (b) refuse smugglers’ advances. The model considers three main factors: (1) most frequently used and trusted media channels, (2) dynamic influencers and knowledgeable local leaders, (3) competent and trustworthy sources of information.
Pengujian Tahanan Kontak Pemutus Tenaga 70 KV Di Gardu Induk Rengas Dengklok Karawang
Authors: Fikri Muhammad Mursal , Bangsa Insani Abdi , Ilmi Ulul
Published: May 2022

The increasing demand for electric power every year demands to provide reliable electric power. One of the important parts to support the reliability of the electric power system is the substation. Substation is a subsystem of the electric powerdistribution system. One of the materials from the substation is a Circuit Breaker (CB) which is a switch that is used to open or close an electrical circuit under load conditions, and is able to connect or disconnect electrical circuits during normal conditions or when a fault current occurs. The CB needs to be maintained to maintain the reliability of CB. This research aims to determine the value of contact resistance in CB. In this research, data were collected from the last 2 periods of maintenancecarried out at the Rengas Dengklok Substation, PT. PLN (Persero) Karawang.Overall with the maintenance and testing of CB contact resistance, the reliability ofthe CB is maintained and can work normally
Visual Inspection dan Pengujian Tahanan Isolasi Pemutus Tenaga (PMT) Bay 150 KV Kopel
Authors: Afifah Nur , Latifa Ulinnuha
Published: May 2022

Electrical energy is a primary need to supply all aspects of community needs andactivities for electricity. For this reason, maintenance is carried out to improve efficiency, quality, and distribution of electrical power. The PMT at thesubstations is used as a mechanical switch or as a circuit breaker. The methodused in this study was qualitative and quantitative to determine the presence of anomalies in electrical distribution. Based on in service/visual inspection, the condition of the equipment is good visually, and there is no anomalies were found. Testing at an insulation resistance, the rise and fall of the measurement results can be caused by several factors such as the wrong position of the measuring instrument, a dirty insulator body, or high humidity levels.
Penentuan Kapasitas PMT SF6 Pada Bus 70 KV Menggunakan Simulasi Program ETAP
Authors: Widianto Jeri , Hidayat Rahmat , Laksono Arief Budi
Published: May 2022

The electric power system consists of several components, namely generation, distribution, transmission and load. Along with the rapid development of technology in the field of electricity today, a protection system is installed at substations, one of which is a powerbreaker (PMT) at each substation. In the event of a disturbance, the protection relay will detect and instruct the breaker to open or disconnect the circuit from the disturbance, then a circuit breaker will receive a signal from the relay and in the end will decide the circuit according toits current rating. Based on the type of PMT isolation media, PMT is divided into 4 types, one of which is the SF6 gas isolation media type. This type of PMT can be used to cut currents up to 40 KA and in circuits with a voltage of 765 KV. It must be noted that if the current is very large at the time of short circuit, then the thing that must be considered is the capacity of thebreaker itself. To determine the breaker capacity, it is sought from the largest short-circuit current, namely a three-phase short circuit. In finding a three-phase short circuit current can be simulated using the ETAP (Electric Transient Analysis Program) program. ETAP can simulatepower flow and short circuit current. The results of the calculation of the PMT capacity on the 70 KV bus are 0.324 KA and from the results of the calculation and analysis of the PMT it is included in the rating of 12.5 KA where the PMT with the rating value can decide the fault current from 0.9 KA -7.74 KA
Penggunaan Fuzzy Logic Control Untuk Kestabilan Solar Sel Dengan Menggunakan Matlab
Authors: Yudianto Firman , Kurniastuti Ima , Rupawanti BR Nahdia
Published: May 2022

Solar cell are currently needed and have been widely used in Indonesia asan alternative energy to help supply energy. This energy reliability will be moreeffective if the maximum power usage is monitored by measurement andsimulation. FLC is carried out to test the correctness of the value of thesimulink module block with solar cell panels, namely short circuit currenttesting and open circuit voltage testing. The simulation was carried out withirradiation of 1000 W/m2 and a temperature of 25 degrees Celsius withtechnical data of solar cell panels.Result of test the solar panel system that is connected to the load usingthe MPPT system, it is carried out with the same irradiation and temperaturevalues as in the simulation without MPPT. In the system also installed a load inthe form of a resistor. Based on the test results without MPPT, to reach themaximum power point, the FLC output is expected to be close to the value ofthe duty cycle of 1% to 35%.
Optimisasi Steering Control Pada Mobil Listrik Auto-Pilot Menggunakan Metode Bat Algorithm
Authors: Ali Machrus , Haikal Muhammad Agil , Rukslin Rukslin , Nurohmah Hidayatul
Published: May 2022

Optimalisasi gerakan kemudi diperlukan untuk pergerakan kemudi dengan kendaraan. Gerakan yang salah menyebabkan mobil akan menghasilkan kesalahan posisi mobil pada jalur kendaraan. Beberapa studi telah dikembangkan dalam kemudi otomatis sepenuhnya dengan sistem kabel, termasuk yang dikhususkan untuk jalur input, menggunakan teknologi dan lintasan GPS. Pada penelitian ini sistem kemudi menggunakan kontroler PID Penggunaan Artificial Intelligence (AI) sangat membantu dalam mempercepat dan mengoptimalkan proses pengendalian kendaraan. Pada penelitian ini akan dikembangkan model Fully Automatic Steer By Wire System menggunakan 10 Degree Of Freedom (DOF) yang terdiri dari Model Kendaraan 7-DOF dan Model Penanganan Kendaraan 3-DOF. Metode yang digunakan adalah PID yang disetel metode kecerdasan buatan adalah Bat Algorithm (PID-BA). Sebagai pembanding digunakan juga Ant Colony Optimization (ACO), Particle Swarm Optimization (PSO), dan Firefly Algoritm (FA). Selanjutnya, metode ini digunakan untuk merancang mobil listrik nyata. .  Pada kecepatan standar 13,8 km/jam, metode PID-BA memiliki error terkecil sebesar 0,019 m. Metode PID-BA mampu mempertahankan ketepatan lintasan pada kecepatan 75,9 km/jam memiliki error terkecil sebesar 0,234 m. Hasil ini menunjukkan bahwa kondisi kendaraan yang sangat ideal. Penelitian lebih lanjut dapat diikuti dengan kondisi kendaraan yang sebenarnya.
Analisis Aliran Daya dan Stabilitas Sistem Tenaga Listrik Sistem Multi Mesin dengan ETAP
Authors: Budi Laksono Arief , Abidin Zainal
Published: May 2022

Study of the stability of the power system as an important and complex problem in the operation of a power system that is safe from the power system when there are small or large disruptions in the connected power system. This discussion studies load flow and stability analysis while a multi-machine power system with ETAP software.Single diagram system multi-engine system 9-bus system configured in ETAP. For  each multi-machine power system power flow and power flow analysis have been provided a complete tool in ETAP.The results of the load flow data are presented for each case. For the transient stability analysis, the system is simulated with three phase disturbance to earth and single phase interference in ETAP. The combination of AVR, Governor, and PSS maintains synchronization during all types of errors. Variations in rotor angle, bus voltage, and engine speed were studied in each case study. Simulation results are shown through graphical analysis. In the ETAP simulation study explains that the application of PSS can substantially improve the transient stability of the power system.
Pemodelan Matematis Pengaturan Frekuensi Beban Sistem Tenaga Hibrid Turbin Angin-Diesel-PV
Authors: Abidin Zainal -
Published: May 2022

Modeling study mathematically analyzes the wind-diesel-PV hybrid system with PI control for load frequency regulation (LFC). To improve the reliability of electricity supply, renewable energy sources such as wind and solar energy are integrated with a diesel power generation system to supply power for isolated areas. Isolated hybrid power system is designed to minimize mismatch between generation and load consumption. Due to unstable wind generation, solar PV sources, and frequent load changes, there are fluctuations in power generation especially in system frequency and voltage. Conventional PI control is used to adjust the system load frequency to make the frequency drift to the allowable range. This article presents a complete mathematical modeling of a system consisting of a wind turbine induction generator unit, a diesel engine synchronous alternator unit and a solar panel (PV) with MPPT (Maximum Power Point Tracking).
Linguistic Signs of Gender Neutrality in the English and Russian Languages (by the Example of the Internet Publications)
Authors: Bozhenko Yulia Sergeevna , Em Lyudmila Sergeevna , Kalinovskaya Elena Alexandrovna
Published: May 2022

The aim of the study is to identify the linguistic signs of gender neutrality in the English and Russian languages. The examined languages reflect socio-political events and global trends, one of which is the desire for tolerance that makes it necessary to apply the policy of gender neutrality. The scientific novelty consists in revealing the features of the linguistic representation of gender neutrality at the present stage of language development by studying the materials of the Internet publications. As a result of the study, the potential ways of solving the problem of linguistic sexism have been characterized; the linguistic means of gender neutrality manifestation in English and Russian have been identified.