bluuebunny/crossref_metadata_2025 huggingface dataset:
“BARTER” MECANISMO ESTRATÉGICO NO AGRONEGÓCIO: UMA APROPRIAÇÃO DO TEMA EM EIXOS TEMÁTICOS PARA DIRECIONAMENTO DE NOVAS PESQUISAS
Authors: Linhares Flávio Sérgio , Campos João Luís Antunes , Junior Luiz Gonzaga de Castro
Published: August 2022

“Barter” consiste em uma operação em que o produtor tem a possibilidade de trocar a sua produção por insumos que serão utilizados durante o processo produtivo. Diante disso, este estudo buscou propor uma estrutura de eixos temáticos sobre o tema que poderá nortear uma agenda de pesquisas futuras. Para atingir esse objetivo, foi realizada uma revisão integrativa de literatura dos estudos que abordam sobre as operações de “Barter” no mercado como processo estratégico. Os resultados foram consistentes, sendo possível estabelecer cinco eixos temáticos que compõem a matriz conceitual e empírica sobre os estudos que abordam sobre o tema: (i) motivações para o uso de “Barter”; (ii) fatores determinantes da operação; (iii) riscos inerentes à operação; (iv) vantagens da utilização desse mecanismo; e (v) desafios e dificuldades da operação. Assim, foi identificada uma heterogeneidade temática dos estudos e recomenda-se que futuras pesquisas sejam direcionadas para melhor entendimento desses componentes temáticos, principalmente sobre os desafios e dificuldades enfrentadas pelos praticantes. Uma das características identificada na literatura é que operações de “Barter” são realizadas quando há falta de liquidez no mercado, tornando-se, portanto, uma alternativa de financiamento. Assim, os resultados encontrados podem estimular práticas dessa operação, principalmente em períodos de crises. Foi demonstrado que esse tipo de operação evoluiu nos últimos anos, mas ainda carece de estudos sobre os seus benefícios e aplicabilidade tanto para o setor produtivo quanto para as revendas de insumos.
Novel Simplified Numerical Simulation Method for Modeling Bleed Holes in Supersonic Inlets
Authors: Wang Changsheng , Eri Qitai , Kong Bo , Wang Yong , Ding Wenhao
Published: August 2022

A novel simplified numerical simulation method for bleed holes in supersonic inlets was developed to estimate the bleed mass flow rate and simulate the flowfield structure in the bleed region. First, the Prandtl–Meyer expansion theory was employed to calculate the location of the barrier shock and reconstruct the flow structure inside the bleed hole. Next, a novel discrimination algorithm was developed to distinguish the grids connected to the bleed hole in the bleed zone instead of directly modeling the hole opening and plenum chamber. Finally, the bleed mass flow rate was obtained based on the boundary-layer properties in the bleed region and the fitting scaled coefficients. This method was also evaluated by performing numerical simulations for a series of different bleeding situations. For all the examined cases, the simulation results were in good agreement with the experimental data, and the number of grid points’ requirement for modeling the bleed hole as compared with the fully resolved method was considerably reduced. Moreover, the proposed method was successfully applied to simulate porous bleed systems in a mixed-compression supersonic inlet. This illustrates that the proposed method is expected to be a useful engineering tool for designing the bleed system of the supersonic inlets.
PENGARUH PENDIDIKAN KESEHATAN TENTANG COVID-19 KEPADA KEPALA KELUARGA TERHADAP PERILAKU PENCEGAHAN COVID-19 DI WILAYAH KERJA PUSKESMAS BANJAR I
Authors: Fitri Agisti Raudlatul , Yuningsih Aneng , Rosmala Fenty
Published: August 2022

Organisasi Kesehatan Dunia (WHO) menyatakan bahwa Covid-19 telah menjadi penyakit pandemi di seluruh dunia. Indeks Pembangunan Manusia yang dikembangkan oleh United Nations Development (UNDP) mencakup tiga indikator utama, yakni : pendidikan (education), kesehatan (health), dan ekonomi (economy). Penelitian ini bertujuan untuk mengetahui pengaruh pendidikan kesehatan tentang Covid-19 kepada kepala keluarga terhadap perilaku pencegahan Covid-19 di Wilayah Kerja Puskesmas Banjar I. Rancangan penelitian yang dilaksanakan oleh penulis yaitu menggunakan pre-experimental design dengan jenis one-group pretest posttest design. Populasi yang digunakan adalah seluruh kepala keluarga yang ada di Desa Balokang dengan jumlah 3.764 KK. Pengambilan sampel pada penelitian ini menggunakan teknik purposive random sampling. Hasil penelitian menunjukkan bahwa kenaikan nilai rata-rata perilaku kepala keluarga tentang pencegahan Covid-19 adalah 8,37 setelah diberikan pendidikan kesehatan. Nilai Pvalue yang diperoleh dari hasil uji statistik adalah 0,000 < 0,05 yang artinya ada pengaruh pendidikan kesehatan tentang Covid-19 kepada kepala keluarga terhadap perilaku pencegahan Covid-19 di Wilayah Kerja Puskesmas Banjar I. Penelitian selanjutnya diharapkan untuk melakukan penelitian lanjutan terhadap indikator menjaga jarak dan mengurangi mobilitas yang memiliki nilai rata-rata yang menurun untuk diketahui faktor-faktor yang mempengaruhi indikator tersebut.The World Health Organization (WHO) has declared that Covid-19 has become a worldwide pandemic disease. Human Development Index developed by United Nations Development includes three main indicators, that is : Education, Health, and Economy. This study is aimed at learning about Covid-19’s effect on the family head’s Covid-19 preventive behavior in the workplace of The Banjar I health center. The design of this study was carried out by the author using a pre-experimental design of one group pretest posttest design. The population used was the entire family’s head in Balokang village with 3.764 family’s head. Sampling retrieval on this study uses an adhesive purposive random sampling. Studies have showm that an increase in the average family’s head behavior on Covid-19 prevention was 8,37 after being given a health education. The Pvalue that comes from a statistical test is 0,000 < 0,05 which suggest that there were Covid-19 health education on the family head as to Covid-19 preventive behavior in the region of The Banjar I health center. Further study is expected to do further study of the indicators of distance keeping and reducing average rates of mobility to see the factors affecting the indicators.
Cytotoxic effect of partially purified conotoxin from Conus virgo on Human Colon Cancer cell line HT-29
Authors: Ganesan Dhana Sekaran , Munusamy Sudanthiradevi , Chinnasamy Arulvasu
Published: August 2022

The present study focused on partial purification of conotoxin from the crude venom of Conus virgo and tested for its anticancer potential against human colon cancer cell line HT-29. The screening of crude venom was carried out using human cancer cell lines such as MCF-7 and HT-29 by MTT method. The result showed IC50 for HT-29 at 40 μg/ml for 24 h. incubation whereas MCF-7 cell line failed to show the decreased cell viability (71% cell viability at a maximum concentration of 140 μg/ml). The conotoxin was purified using DEAE-cellulose column chromatography; purified fraction-1 exhibited significantly decreased cell viability at 20, 40, 60, 80, 100, 120 and 140 ng/ml concentrations in HT-29cells and IC50 was found at 120 ng/ml for 24h. incubation. In Cytomorphological observation, distinct cellular changes such as cell shrinkage, loss of adherence and loss of colony formation were observed. The nuclear morphological damages were observed in propidium iodide staining. DNA fragmentation was observed in the treatment of fraction-1 on HT-29 cells when compared to control cells using agarose gel electrophoresis. Based on these findings, the fraction 1 conotoxin induced the nuclear damage and caused cell death in HT-29 cells, so it could be a good candidate for colon cancer chemotherapy.
Immobilization of porcine pancreatic lipase on Celite: optimization using a full factorial experimental design
Authors: Saihi Y. , Benouis S. , Kraim K. , Ferkous F.
Published: August 2022

In this study, Celite was used as a stable, low-cost and eco-friendly support for the immobilization of porcine pancreatic lipase (PPL). A full factorial design (24) was applied to examine the effect of four operating factors affecting the immobilization process, namely medium pH, contact time, immobilization temperature and Celite/PPL ratio. The hydrolytic activity of the immobilized PPL was chosen as the response variable. The optimal immobilization parameters for maximum activity: y=0.2064 mmol.min-1.g-1 were obtained at pH=5 for 30 min at 4°C and a PPL/Celite ratio of 1/1 (w/w). Stability in terms of pH is in the range of 8.0-9.0, the optimal temperature that endangers the proper enzyme activity is 40°C.
Green synthesis of propylene oxide directly from propane
Authors: Kube Pierre , Dong Jinhu , Sánchez Bastardo Nuria , Ruland Holger , Schlögl Robert , Margraf Johannes , Reuter Karsten , Trunschke Annette
Published: August 2022

The chemical industry faces the challenge of bringing emissions of climate-damaging CO2 to zero. However, the synthesis of important intermediates, such as olefins or epoxides, is still associated with the release of large amounts of greenhouse gases. This is due to both a high energy input for many process steps and insufficient selectivity of the underlying catalysed reactions. Surprisingly, we found that the oxidation of propane at elevated temperature over inert materials such as boron nitride and silicon dioxide leads to the formation of significant amounts of propylene oxide in a mixture with propylene, with unexpectedly small amounts of CO2 being formed. Fragile products are usually synthesised on highly specific surfaces, which is associated with strong interactions. We demonstrate that rapid reaction over unspecific interfaces entails im-portant consequences for the synthesis of products prone to overoxidation. Process simulations reveal that the combined synthesis of these two important chemical building blocks is technologically feasible. Our discovery leads the ways towards an environmentally friendly production of propylene oxide and propylene in one step. A complex catalyst development is not necessary.
Tuning the rare-earth UiO-66 metal–organic framework platform for white light emission
Authors: Ajoyan Zvart , Bicalho Hudson A. , Donnarumma P. Rafael , Howarth Ashlee J.
Published: August 2022

Metal–organic frameworks (MOFs) have received notable attention owing to their structural diversity, permanent porosity, and high surface areas. In addition to these properties, rare-earth (RE) MOFs have the added feature of tunable photoluminescence dictated by the identity of the metal ion and organic linker in the RE-MOF. Herein, we explore the tunable photoluminescent properties of RE-UiO-66 by synthesizing and characterizing mono-, bi- and tri-metal RE-UiO-66 analogues where RE = Tb(III), Gd(III), and Eu(III), to ultimately design a white light emitting MOF. The photophysical properties of this series of MOFs are explored and, as a proof of concept, the tri-metal Tb:Gd:Eu-UiO-66 is used as a surface coating on a UV light emitting diode (LED) to give a white light emitting device.
Bioinspired Gradient Poly(ionic liquid) Ionogels for Ionic Skins with an Ultrawide Pressure Detection Range
Authors: Zhang Xiaoyu , Zeng Sheng , Hu Zhenyu , Liang Xing , Sun Qi , Huang Jia , Zu Guoqing
Published: August 2022

Recently, with the increasing demand for artificial skins and human bodily motion/physical signals monitoring, flexible pressure sensors with a wide detection range are urgently needed. Transparent and stretchable gels with ionic conductivities are considered to be ideal candidates for flexible pressure sensors. However, the gel-based pressure sensors usually show a relatively narrow detection range, which significantly limits their practical applications. Herein, we report an unprecedented bioinspired highly flexible modulus/conductivity-dual-gradient poly(ionic liquid) (PIL) ionogel, which is achieved by constructing three layers of PIL ionogels with different monomer concentrations via a layer-by-layer gelation method. The flexible pressure sensor based on the gradient PIL ionogel exhibits an ultrabroad detection range of 10 Pa-1 MPa. This wearable pressure sensor is highly stable in environments and able to monitor both the tiny pressures as low as 10-100 Pa and the high pressures up to 0.1-1 MPa during human body movements. This work provides a powerful strategy for the preparation of flexible gradient materials that are promising for wearable electronics with a wide pressure detection range.
A database to compare possible MOFs for volumetric hydrogen storage, taking into account the cost of their building blocks
Authors: Villajos Collado Jose Antonio , Bienert Martin , Gugin Nikita , Emmerling Franziska , Maiwald Michael
Published: August 2022

Physical adsorption at cryogenic temperature can increase the density of the stored hydrogen at a lower pressure than conventional compressed gas systems. This mechanism is also reversible and involves faster kinetics than chemical storage. Materials with certain structural and porous properties are necessary for volumetrically efficient hydrogen storage, including large specific surface areas, pore volumes, and appropriated bulk densities. Metal-organic frameworks (MOF) materials are remarkable candidates as adsorbents due to their porous properties and high crystallinity. Large databases like the MOF subset from the CSD or the CoRE-MOF can be used to find the best materials for this application, providing crystallographic information, composition, and porous properties. Herein, we created a database which includes crystallographic and porous properties, metallic and organic composition, and the minimum available cost for their linkers and corresponding suppliers for those for which it was publicly available. The database is also helpful for selecting structures with potential for industrial production and starting material for computational tools like machine learning or artificial intelligence approaches that relate the composition of MOFs with their performance in different applications. A user interface allows for creating customized selections of suitable MOF structures, looking for their porous and crystalline properties, gravimetric and volumetric total uptakes, and metallic and organic composition, as well as properties for the organic linkers like name, molecular mass, price, or presence of specific functional groups. This information was used to select potential structures from up to two metals and two linkers for the volumetric cryostorage of hydrogen.
Poly-N-isopropylacrylamide colloidal arrays as templates for droplet-assisted fabrication of plasmonic nanostructure patterns
Authors: Balderas-Valadez Ruth Fabiola , Nagel Alessandro , Kanehira Yuya , Bald Ilko , Pacholski Claudia
Published: August 2022

Poly-N-isopropylacrylamide colloidal arrays are exploited for site-selective self-assembly of gold nanoparticles on large areas. The soft colloids host the drying process of gold nanoparticle dispersion droplets and leave room for capillary convection and Marangoni convection flow paving the road to a simple bottom-up fabrication strategy for nanostructure arrays.
The Structure and Magnetic Properties of a New Family of 1D Chromium Thiolate Coordination Polymers
Authors: Ritchhart Andrew , Filatov Alexander , Jeon Ie-Rang , Anderson John
Published: August 2022

The synthesis, structure, and magnetic properties of two novel, pseudo-1D chromium thiolate coordination polymers (CPs), CrBTT and Cr2BDT3, are reported. The structures of these materials were determined using X-ray powder diffraction revealing highly symmetric 1D chains embedded within a CP framework. The magnetic coupling of this chain system was measured by SQUID magnetometry, revealing a switch from antiferromagnetic to ferromagnetic behavior dictated by the angular geometrical constraints within the CP scaffold consistent with the Goodenough-Kanamori-Anderson rules. Intrachain magnetic coupling constants JNN of −32 K and +5.7 K were found for CrBTT and Cr2BDT3 respectively using the 1D Bonner-Fisher model of magnetism. The band structure of these materials has also been examined by optical spectroscopy and Density Functional Theory (DFT) calculations revealing semiconducting behavior. Our findings here demonstrate how CP scaffolds can support idealized low-dimensional structural motifs and dictate magnetic interactions through tuning of geometry and inter-spin couplings.
PROPUESTA DE RED DE ABASTECIMIENTO DE AGUA POTABLE EN LA ZONA RURAL DEL MUNICIPIO DE VALENCIA, DEPARTAMENTO DE CÓRDOBA
Authors: Durango Grisales Juan Francisco , Regino Cárdenas Nohelia , Pérez Feria Yainer , Montiel Cardozo William , Bitar Álvarez Jorge David , Arteaga Tatiana , Villegas León José Juan , Aranda Pérez Darío
Published: August 2022

El abastecimiento de agua potable en la comunidad es de suma importancia para el desarrollo de estas, especialmente en la zona rural donde se cuenta con limitación en el acceso al recurso hídrico. El presente proyecto, tuvo como objetivo realizar la modelación del sistema de acueducto de la vereda Rusia 3, zona rural del municipio de Valencia – Córdoba, mediante la herramienta WATERGEMS. Actualmente la zona de estudio no cuenta con una red de acueducto que garantice la demanda y el consumo de agua potable. Con tal fin, se desarrolló el análisis de proyección poblacional, para luego determinar los caudales de diseño según la normatividad vigente (RES 0330-2017) y proponer los alineamientos necesarios para las redes de conducción, impulsión y distribución según la topografía existente; se aplicó el teorema de Darcy-Weisbach para estimar los diámetros óptimos para el sistema de acueducto; de igual forma se determinaron los volúmenes de almacenamiento para satisfacer la demanda de la población. Una de las herramientas más favorables para el diseño de redes de acueducto es WATERGEMS ya que analiza las presiones de cada nodo, simula el flujo de agua en cada tubería y comprueba las velocidades mínimas y máximas exigidas durante la modelación. Finalmente, la metodología empleada mostro resultados satisfactorios en el diseño de la línea de aducción, conducción y la red de distribución siguiendo los requisitos planteados por la resolución 0330 del 2017, obteniendo alternativas viables y comprobando que la herramienta WATERGEMS es de suma utilidad para el diseño y análisis de sistemas similares al estudiado.
THE USE OF SPECIALISED TOOLS TO PROTECT LAW ENFORCEMENT INFORMATION NETWORKS
Authors: Shumilina Vera , Chibizov Roman
Published: August 2022

This article looks at the network defenses used by law enforcement agencies. The elements required by attackers for an attack and their steps are discussed. Programs to detect an attacker are suggested, as well as methods of protection that will prevent the compromise of the entire network. Disadvantages of traditional network defenses in use are discussed.
Studi Kasus: Dinamika Gangguan Psikologis dan Fisik Yang Dialami Pria Pengurus Desa Adat Bali
Authors: Melandari Kadek Isma , Yunanto Taufik Akbar Rizqi
Published: August 2022

Hipertension is dangerous disease that can take the life of the sufferer. Killing sufferers event without symptoms warns everyone to maintain physical health and also mental health. One of the factors that cause hypertension is stress. Including the figures or administrators of the Balinese Traditional Village. The workload is quite heavy and also voluntary (Ngayah) is a source of its own stressor. This Study aims to determine the psychological dynamic that occur in traditional leaders so that it can affected their medical conditions which have an impact on incrasing blood pressure. The method used in the research is case study method with  qualitative approach. The partisipan that involved was one person (N=1). A man 55 years who served as a traditional village leader and carried out duties in village management and suffered high blood pressure. Data was collected by using interview asessment techniques, observation, and also using several psychological instruments to make it easier arrange the psychological dynamic of the participant. The results of this study is the increase of blood pressure experienced by participant is influenced by the presense of strong stressor from dthe social environment.
How Psychological Well-Being during Covid-19 Pandemic in Faculty Teacher Training and Education Ahmad Dahlan University?
Authors: Hartanto Dody , Bhakti Caraka Putra , Rodhiyya Zaenab Amatillah , Kurniasih Cucu
Published: August 2022

The Covid-19 pandemic has impacted the learning process. Changes in interaction patterns in the learning process from face-to-face laerning to online learning affects the psychological well-being of students. This study aimed to determine the description of psychological well-being in students of the Faculty of Teacher Training and Education, Ahmad Dahlan University. For college students, a crucial psychological aspect is psychological well-being, which contributes to academic success and life. This article uses the method of literature study and survey by collecting data from 318 students of Teacher Training and Education Faculty. The data is then analyze using the Ryff’s Psychological Well-Being (RPWB) scale adapted into Indonesian by Amalia. The results showed that of the 318 respondents divided into five category, there are very high category, high category, middle category, low category, and shallow category. The highest number was in high category. However, if the other category were included, the overall picture of Ahmad Dahlan University Faculty Teacher Training and Education students is in the medium category. The result implicates that students still need guidance to improve their psychological well-being condition in order to maintain their college life and personal life during pandemic
Layanan Penguasaan Konten dengan Pendekatan Mujahadah untuk Mereduksi Kecanduan Smartphone pada Anak
Authors: Prasetia Agung Tri , Juliawati Dosi , Pratiwi Suci Monitya
Published: August 2022

Layanan Penguasaan Konten pendekatan Mujahadah melatihkan peserta layanan untuk bersungguh-sungguh memperbaiki kebiasaan yang tidak baik. Penelitian ini bertujuan untuk Menguji perbedaan kondisi kecanduan Smartphone sebelum dan sesudah dilaksanakan layanan penguasaan konten. Metode yang digunakan di dalam peneltian ini yaitu  penelitian kuantitatif pendekatan eksperimen dengan desain one group prettest and posttest design untuk mengungkapkan data  sebelum ekperimen (01) dan sesudah eksperimen (02). Dalam penelitian ini yang menjadi populasi adalah anak-anak usia 7-12 tahun yang berdomisili di Desa Pelayang Raya. Pengambilan sampel dalam penelitian ini adalah proposive sampling yang berjumlah 10 orang anak. Instrument yang digunakan dalam penelitian ini yaitu skala kecanduan Smartphone. Data hasil penelitian di analisis menggunakan uji wolcoxon. Dari hasil penelitian menunjukkan Perbedaan kondisi kecanduan Smartphone sebelum dan sesudah dilaksanakan layanan penguasaan konten dengan pendekatan mujahadah memberikan pengaruh yang positif dengan berkurangnya kecanduan Smartphone membuat anak mulai fokus dalam menjalankan pendidikan. Implikasinya dalam pelaksanaan layanan Bimbingan Konseling memperkaya gaya pelaksanaan layanan yang identik dengan studi keislaman.
Cognitive Distortion While Attending Online Class: Study on Banjar College Student
Authors: Haryadi Rudi , Aminah Aminah , Hayati Sri Ayatina
Published: August 2022

Online learning has begun to take place in Indonesia since March 2020 simultaneously in all educational institutions due to the outbreak of the Covid-19 outbreak. Sudden changes make it difficult for students to process information and lead to various patterns of thinking errors which are known as cognitive distortions. This study aims to reveal the patterns of cognitive distortions that students have during the online lectures. The research design used is a phenomenological qualitative design. Analysis of cognitive distortions was collected through in-depth interviews and document studies to 8 Banjar ethnic students. The results of the study found that there were 3 cognitive distortions, namely: (1) catastrophizing; (2) all-or-nothing thinking; and (3) should statements. The effects of these cognitive distortions include feeling lazy, bored, afraid, uncomfortable, drowsy, shaking, and heart palpitations. In the context of student behavior, students also tend to neglect lectures, access social media, sleep, and go to hang out with friends. Further research is needed to explore student’s cognitive distortions in post-Covid-19 pandemic situation or with diverse populations.
AKUISISI DATA VIBRASI UJI DINAMIK JEMBATAN
Authors: Purboyo Anton Husen , Zarkasi Iwan
Published: August 2022

Abstract

 

Assessment of bridge performance is a primary indicator which could be used in prioritizing bridge main-tenance programs. The dynamic loading test on the bridge is one of the tools that can be used in assessing the performance of the bridge. This dynamic loading test offers convenience and speed as well as accuracy regarding the integrity of the bridge structure and has been commonly used in the operation of the Bridge Monitoring System. This study examines the standard method of implementing the dynamic test vibration data acquisition of the bridge before it is used in interpreting the behavior of the bridge structure. The results indicate that the filtering process must be applied in accelerometer data collection, because the filtering process can remove both frequencies smaller than 1 Hz and noise obtained from accelerometer readings. In addition, the behavior of the first integration shows the same tendency as the initial hypothesis, while the behavior of the second integration does not match the initial hypothesis proposed.

 

Keywords: bridge performance; dynamic loading test; bridge structural integrity; bridge monitoring system; dynamic test vibration data.

 

 

Abstrak

 

Penilaian kinerja jembatan menjadi indikator utama yang dapat digunakan dalam penyusunan prioritas program pemeliharaan jembatan. Pengujian pembebanan dinamik pada jembatan merupakan salah satu alat yang dapat digunakan dalam menilai kinerja jembatan tersebut. Pengujian pembebanan dinamik ini menawarkan kemu-dahan dan kecepatan serta akurasi mengenai integritas struktur jembatan dan telah biasa digunakan dalam penyelenggaraan Sistem Monitoring Jembatan. Pada studi ini dikaji metode baku pelaksanaan akuisisi data vibrasi uji dinamik jembatan sebelum digunakan dalam melakukan interpretasi terhadap perilaku struktur jembatan. Hasil yang diperoleh menunjukkan bahwa proses filtering harus diterapkan dalam pengambilan data accelerometer, karena proses filtering tersebut dapat membuang frekuensi yang lebih kecil dari 1 Hz dan noise yang didapat dari hasil pembacaan accelerometer. Selain itu, perilaku integrasi pertama menunjukkan kecen-derungan yang sama dengan hipotesis awal, sedangkan perilaku integrasi kedua tidak sesuai dengan hipotesis awal yang diajukan.

 

Kata-kata kunci: kinerja jembatan; pengujian pembebanan dinamik; integritas struktur jembatan; sistem mo-nitoring jembatan; data vibrasi uji dinamik.
CAPAIAN KEMANTAPAN JALAN NASIONAL DI BALAI PELAKSANAAN JALAN NASIONAL NUSA TENGGARA TIMUR
Authors: Sowolino Bertho Orbain , Santosa Wimpy
Published: August 2022

Abstract

 

Road preservation aims to ensure that road support for development activities is guaranteed and roads are in a good condition. Good road conditions will affect the quality of the trip, driving comfort, and travel speed that can be achieved. In this study, the achievement of good road condition is assessed based on the existing budget allocation at the East Nusa Tenggara National Road Implementation Center. The proportion of roads in a good condition at the East Nusa Tenggara National Road Implementation Center has consistently increased from 2016 to 2020, increasing by 6.63% over a period of 4 years. The good condition of the road is influenced by the availability of budgets with varying amounts, depending on the preservation activities that are programmed to achieve the expected road condition.

 

Keywords: national road; road preservation; good road condition; budget allocation.

 

 

Abstrak

 

Preservasi jalan bertujuan untuk memastikan bahwa dukungan jalan terhadap kegiatan pembangunan tetap terjamin dan jalan dalam kondisi mantap. Kondisi jalan yang mantap tersebut akan berpengaruh pada kualitas perjalanan, kenyamanan berkendara, dan kecepatan tempuh yang dapat dicapai. Pada studi ini dikaji capaian kemantapan jalan berdasarkan alokasi anggaran yang ada di Balai Pelaksanaan Jalan Nasional Nusa Tenggara Timur. Proporsi jalan dengan kondisi mantap di Balai Pelaksanaan Jalan Nasional Nusa Tenggara Timur terlihat konsisten meningkat dari tahun 2016 hingga tahun 2020, yaitu meningkat sebesar 6,63% dalam kurun waktu 4 tahun. Kondisi kemantapan jalan ini dipengaruhi oleh ketersediaan anggaran dengan besaran yang bervariasi, bergantung pada kegiatan preservasi yang diprogramkan untuk mencapai kondisi mantap yang diharapkan.

 

Kata-kata kunci: jalan nasional; preservasi jalan; jalan mantap; alokasi anggaran.
Propuesta de optimización de la cuenca del Río Anil El mediante herramientas computacionales
Authors: Forero Peña Juliana , Palacios Puentes Javier
Published: August 2022

Esta investigación se realizó con el objetivo de crear una propuesta para la optimización de la cuenca del Río Anil, a partir de una simulación de la hidrología, utilizando herramientas computacionales como Google Collaboratory, Sistemas de Información Geográfica (QGIS) y VAC Systems, proponiendo un diseño sostenible. Por medio de la información suministrada por el IDEAM se diagnosticó el estado de la cuenca del Río Anil El, donde se encontraron diferentes estaciones de monitoreo, las cuales permiten tener datos constantes sobre las épocas lluviosas y secas dentro de las zonas de estudio junto con los caudales correspondientes. Al analizar los resultados obtenidos del estudio de los datos por medio de la herramienta Solver y la correlación de la cuenca con las estaciones cercanas, se observó el comportamiento hidrometeorológico, indicando que el Río Anil es una zona trópico seco, manteniendo precipitaciones altas en los meses de julio, agosto, septiembre y bajas en los primeros meses del año, percibiendo que es constante durante casi todo el año; la cuenca presenta inundaciones en las épocas de lluvia, en las que se evidencia que sufre de precipitaciones altas provocando inundaciones en el municipio de Uramita y veredas cercanas. Finalmente se propuso un diseño sostenible para el aprovechamiento de los recursos hídricos  generados por la capacidad de infiltración de la cuenca del Río Anil El, beneficiando las necesidades de la población.
Aplicación de un modelo de Planificación Colaborativa, Previsión y Reposición (CPFR) en un laboratorio farmacéutico del sector salud
Authors: Ramírez Castañeda Leila Nayibe , Dimas Carmen Vanesa , Reyes Cesar Augusto
Published: August 2022

El presente artículo propone implementar una metodología para el desarrollo de alianzas colaborativas entre el laboratorio farmacéutico en estudio y un cliente VIC (Very Important Customer) del canal cadenas; el cual busca reducir los costos de inventarios y el porcentaje de error en las proyecciones y aumentar el nivel de servicio. El desarrollo del proyecto se divide en cuatro fases: diagnostico, definición de aspectos claves y clasificación ABC multicriterio, elaboración y conciliación de Forescast y, por último, valoración de la eficiencia mostrando análisis de resultados, donde se encontró que la alta variabilidad de la demanda en los productos seleccionados en la caracterización no permite definir un solo modelo de planeación de demanda y, aunque existen herramientas tecnológicas dentro del Laboratorio para estimar el mejor modelo, no llegan hasta el nivel de detalle por Cliente, su alcance es más limitado llegando a definir proyecciones de demanda hasta los productos que comercializa.
La minería de oro sostenible: implicaciones del uso de los residuos como agregado para hormigón
Authors: Casadiego Quintero Efrain , Gómez Ríos Wilmar , R. Monroy Edgar , L. Sánchez Londoño Jeniffer
Published: August 2022

Es necesario extraer una gran cantidad de roca para obtener una cantidad mínima de oro, debido a que el oro se encuentra diseminado en parte por miles en el yacimiento. El proceso de extracción genera de manera significativa producto de desecho sólido debido al triturado del material, lo que genera desechos desde el tamaño bloque hasta la granulometría arenosa y fina. La mayoría de residuos terminan como depósitos en la superficie o en taludes que generan peligro de deslizamientos o daños en el suelo, otra gran parte del material del suelo termina siendo vertido en ríos y arroyos, lo que aumenta la tasa de sedimentación y la deposición de metales pesados. Las áreas que se dedican a la explotación de oro en Colombia se encuentran sobre las Cordilleras de los Andes, cerca nacimientos de agua, lo que genera que una cantidad importante de fuentes de agua se vean afectadas, además, las minas se encuentran en algunos casos cercanas a los páramos como el páramo de Santurban, una importante fuente de agua en el norte de Colombia. Las minas generan entre 5 y 8 toneladas diarias de residuo, lo que hace inmanejable la ubicación del material. Por medio de la petrografía y la difracción de rayos x se encontró un contenido importante de sílice proveniente del cuarzo, plagioclasas y micas.
Enfoque PPGA, Movimientos Sociales y Democracias en América Latina
Authors: Gonzalez Daniel Stiven
Published: August 2022

Las democracias de baja intensidad en América latina atraviesan por un momento de crisis institucional que afecta tanto a gobiernos de izquierda como gobiernos de derecha e impacta negativamente, la calidad de vida de las personas y las comunidades. Nuevas formas de relacionarnos con y en nuestra casa común, florecen como alternativas o propuestas para hacerle frente a las crisis e incertidumbres de nuestra época. Por tales razones, en este artículo de reflexión hacemos mención y destacamos, el enfoque de Gestión Asociada como parte de la solución, para lograr democracias de alta intensidad e incluso, en otro momento tender puentes hacia la democracia real.
gestión asociada impulsada desde el Estado: las mesas de gestión sociourbana
Authors: De Rosas Herrera Fanny Elena
Published: August 2022

La autora describe la experiencia de las mesas de gestión asociada para la inclusión urbana promovidas por un programa gubernamental de construcción de obras de infraestructura y equipamiento urbano en la provincia de Mendoza, Argentina, durante los años 2008 y 2015. Expone la adecuación de la familia de metodologías de planificación y gestión asociada (PPGA) elaboradas en la Facultad Latinoamericana de Ciencias Sociales (FLACSO). Describe herramientas utilizadas y la institucionalización de las prácticas de los actores territoriales durante el periodo. En las reflexiones y conclusiones pone en debate la importancia del rol de los estados populares para la construcción de sociedades más justas e igualitarias.
Espiritualidad, mística y el acontecimiento del amor eficaz
Authors: Useche Aldana Oscar , Amouriaux Jean Michel , Ochoa-Gómez J. Alfredo
Published: August 2022

En esta edición de la revista Polisemia se presentan estudios desde perspectivas diversas sobre un problema de alta complejidad: la espiritualidad y sus múltiples relaciones. Esta puede ser leída desde la visión teológica y desde la eficacia de un amor que se encarna en el bien común. La espiritualidad sse aborda en esta edición de POLISEMIA como una apuesta por la vida en la que se configura una posibilidad abierta para aquel que desea y decide emprender un viaje hacia el espíritu.
entrevista como artefacto de lectoescritura
Authors: Angelina Oliveira Alejandro Bautista , Zarza Vanina Evelyn
Published: August 2022

El presente artículo de investigación se ubica en el marco de los procesos de recepción/producción textual en el contexto de la universidad pública argentina. A partir de una práctica pedagógica, desde la lingüística textual y ciertos estudios de interfaz, se propone abordar la producción de textos académicos mediante el uso de la entrevista como artefacto de lectura para la redacción de textos que presentan una orientación argumentativa, con el fin de direccionar la producción escrita e impulsar el desarrollo idiosincrásico de enunciados. En cuanto a lo metodológico, se trabajó con los niveles descriptivos de la lingüística textual, su interfaz y la relación que se establece entre el discurso solicitado en la producción y el dispositivo puesto en acción para la misma. Como resultado, se evidencia que las preguntas que orientan la redacción son dispositivos de escritura, ya que tienen la capacidad de activar el uso de conectores, formas verbales y léxicas no presentes en la entrevista fuente. Por tanto, se pone en discusión el uso de dichas preguntas guía para abordar otros artefactos de lectura y sus implicancias en el desarrollo de la escritura académica y, en específico, la redacción de tipos textuales de mayor extensión. Así pues, se llega a la conclusión de que las producciones textuales presentan tanto secuencias enunciativas por la resonancia del texto fuente en la memoria de los estudiantes como secuencias inéditas por recursos que se activan en ellos, dadas las preguntas relacionadas con la entrevista fuente, que dinamizan el proceso de escritura.
Memorias de un viaje por las escuelas normales superiores
Authors: Echeverri Sánchez Jesus Alberto
Published: August 2022

En este artículo se parte de presentar una experiencia de fundación de las escuelas normales superiores que, en el marco de varios proyectos de investigación, ofrece un camino para comprender lo que significan los viajes, en este caso a través de la literatura, el cine y la historia, para habilitarnos con encuentros pasionales, esos que ofrecen en el olor, el tacto y la vista condiciones para contemplar la posibilidad de ser maestro e instaurar otros registros de la experiencia de investigación, no inscrita en tramas burocráticas, sino como un ejercicio de la memoria y el cuerpo que transforma el ejercicio de ver, oír, palpar en herramientas para develar los sentidos.
Regulatory reliance pathways during health emergencies: enabling timely authorizations for COVID-19 vaccines in Latin America
Authors: van der Zee Ivar T. , Vreman Rick A. , Liberti Lawrence , Garza Mario Alanis
Published: August 2022

Objectives.

To map the timing and nature of regulatory reliance pathways used to authorize COVID-19 vaccines in Latin America.

Methods.

An observational study was conducted assessing the characteristics of all COVID-19 vaccine authorizations in Latin America. For every authorization it was determined whether reliance was used in the authorization process. Subgroups of reference national regulatory authorities (NRAs) and non-reference NRAs were compared.

Results.

56 authorizations of 10 different COVID-19 vaccines were identified in 18 countries, of which 25 (44.6%) used reliance and 12 (21.4%) did not. For the remaining 19 (33.0%) it was not possible to determine whether reliance was used. Reference agencies used reliance less often (40% of authorizations with a known pathway) compared to non-reference agencies (100%). The median review time was just 15 days and does not meaningfully differ between reliance and non-reliance authorizations.

Conclusions.

This study demonstrated that for these vaccines, despite reliance pathways being associated with numerous rapid authorizations, independent authorization review times were not considerably longer than reliance reviews; reliance pathways were not a prerequisite for rapid authorization. Nevertheless, reliance pathways provided rapid authorizations in response to the COVID-19 emergency.
Método estrutural para aferir o curso pandêmico do SARS-CoV-2 em ambientes escolares
Authors: Higgins Silvio Salej , Luna Adrian Hinojosa , Rabelo Andreia Maria Pinto , Santos Reinaldo Onofre dos , Ferreira Vanessa Cardoso
Published: August 2022

A pandemia da COVID-19 tem levantado uma série de dilemas para os gestores públicos, sendo a reabertura das escolas uma das decisões mais complexas. O presente artigo apresenta uma microssimulação do curso da pandemia considerando vários cenários dentro dos limites de uma sala de aula na cidade de Belo Horizonte, Brasil. Utilizou-se um modelo de suscetíveis-infectados-recuperados (SIR) integrado a um modelo de grafos aleatórios, associando características epidemiológicas a fatores sociométricos e sociodemográficos. Foram utilizadas as taxas de contatos sociais projetadas para o Brasil pelo projeto europeu POLYMOD e adaptadas para a cidade de Belo Horizonte para simular o número de contatos entre os indivíduos seguindo uma distribuição de Poisson. A simulação tomou como referência 20 alunos e suas famílias. Os cenários projetados discriminaram três faixas etárias com as suas respectivas taxas diárias de contatos sociais: 0 a 5 anos (0,01), 6 a 14 anos (1,80) e 15 a 19 anos (0,20). As simulações demonstraram diferenças claras para os grupos etários considerados, dependendo do número de infectados iniciais e do uso ou não de máscara no espaço escolar. Os resultados confirmam que a ausência de medidas adequadas de mitigação eleva de forma considerável o risco de contágio na comunidade escolar.
Mortalidad por cáncer, arsénico y nitratos en aguas de consumo y superficies sembradas en Argentina
Authors: Duarte Leandro Emanuel , Delgado Florencia , Di Leo Néstor Cristian , Bertone Carola Leticia , Franci Alvarez María , Montico Sergio , Oliva Alejandro
Published: August 2022

Objetivo.

La mortalidad por cáncer en la región centro de Argentina está dentro de las más elevadas del país. Dos posibles escenarios ambientales podrían explicar esta situación, su actividad agrícola y la calidad del agua de consumo. El objetivo del estudio es evaluar la interacción existente entre estas variables.

Métodos.

Estudio retrospectivo de diseño ecológico. Se analizaron decenios de superficies sembradas totales (SST) y el porcentaje de población expuesta a niveles elevados de arsénico y nitratos en aguas de consumo en relación con las tasas de mortalidad total (TMT) y órgano-específicas (TME); se calculó el coeficiente de correlación de Spearman.

Resultados.

Se hallaron correlaciones positivas y significativas entre los dos primeros decenios de SST y el primer decenio de TMT, así como correlaciones con cáncer de pulmón, páncreas y colon en hombres; y con cáncer de colon en mujeres. Los niveles elevados de arsénico se asocian con las TMT en ambos sexos y en todos los decenios, aunque de manera específica con cáncer de pulmón en hombres. No se hallaron correlaciones significativas con nitratos.

Conclusiones.

La asociación entre las SST y las TMT y TME presentan mayor intensidad cuanto más cerca están entre ellas temporalmente, y expresan un mayor impacto de los cultivos más antiguos. La asociación entre las TMT y el consumo de aguas arsenicales, así como la hallada en TME de pulmón en hombres y colon en mujeres, muestran que esta exposición histórica es central para entender las condiciones epidemiológicas regionales. Se deben explorar fuerzas sinérgicas entre estas variables.
Klasifikasi Isyarat Bahasa Indonesia Menggunakan Metode Convolutional Neural Network
Authors: Al Rivan Muhammad Ezar , Hartoyo Suryanto
Published: August 2022

Bahasa Isyarat Indonesia adalah isyarat kata yang awalnya diambil dari isyarat yang disampaikan oleh anak tunarungu. Bahasa isyarat adalah hal yang biasa bagi orang tuli dan bisu, tetapi tidak asing bagi orang biasa. Untuk itu diperlukan perantara alternatif yang dapat menjadi penerjemah antara penyandang tunarungu dan tuna wicara sertamasyarakat biasa. Penelitian ini bertujuan untuk mengklasifikasikan sistem isyarat bahasa Indonesia menggunakan metode Convolutional Neural Network dengan arsitektur VGG (Visual Geometric Group)-16 dan Alexnet. Data terdiri dari huruf A sampai dengan huruf Z yaitu 320 data uji, 1600 data latih, dan 320 data validasi, dan data akan diubah ukurannya menjadi ukuran 224 x 224 piksel, dilanjutkan dengan grayscale dan augmentasi. Hasil pengujian VGG-16 menunjukkan bahwa klasifikasi menggunakan VGG-16 dengan optimasi Adam mendapatkan tingkat akurasi tertinggi, yaitu 99,32% untuk setiap huruf, 91,18% untuk keseluruhan. Sedangkan hasil klasifikasi menggunakan VGG-16 dengan optimasi SGD mendapatkan tingkat akurasi terendah, yaitu 98,85% untuk setiap huruf dan 84,96% untuk keseluruhan. Sedangkan dari hasil pengujian AlexNet terlihat bahwa hasil klasifikasi menggunakan AlexNet dengan Adam optimizer mendapatkan tingkat akurasi tertinggi, yaitu 99,16% untuk setiap huruf dan 89,04% untuk keseluruhan. Sedangkan hasil klasifikasi menggunakan AlexNet dengan pengoptimal SGD mendapatkan tingkat akurasi terendah, yaitu 97,33% untuk setiap huruf dan 68,33% untuk keseluruhan.
Perbandingan Algoritma K-Means dan K-Medoids untuk Pengelompokan Daerah Produksi Kakao
Authors: Abidin Nur Awalia Syukri Zainal , Avila Rizna Dwi , Hermatyar Arudji , Rismayani Rismayani
Published: August 2022

Kakao ialah salah satu komoditas unggulan dari sektor perkebunan bahkan produksi kakao dinilai mampu meningkatkan devisa negara. Di Indonesia khususnya Provinsi Sulawesi Selatan memiliki produksi kakao yang besar dimana hampir semua Kabupaten/Kota yang terdapat di Sulawesi Selatan memproduksi kakao. Tujuan dalam melakukan penelitian ini ialah untuk melakukan pengelompokan daerah produksi kakao pada Provinsi Sulawesi Selatan. Adapun algoritma yang digunakan yakni K-Means serta K-Medoids, yang mana K-Means mengelompokan data dengan cara membagi kedalam beberapa cluster berdasarkan ciri yang sama. Sedangakan algoritma K-Medoids memilih objek yang nyata untuk mewakili cluster. Pada penelitian ini kedua algoritma tersebut dibandingkan dengan menggunakan satu dataset. Perbandingan dilakukan dengan melihat nilai Davies-Bouldin Index (DBI) pada RapidMiner. Kemudian hasil yang didapatkan berdasarkan penelitian ini adalah pengelompokan menggunakan algoritma K-Means lebih efektif daripada menggunakan K-Medoids dalam pengelompokan daerah produksi kakao Provinsi Sulawesi Selatan. Dengan nilai DBI yang didapatkan K-Means dan K-Medoids memiliki nilai DBI masing-masing sebesar 0,292 dan 0,365.
Segmentation and Formation of Customer Regression Model Based on Recency, Frequency and Monetary Analysis
Authors: Cristover Ronaldo , Toba Hapnes , Suteja Bernard Renaldy
Published: August 2022

During this pandemic, the number of customers of a securities company has increased quite high. This requires securities companies to conduct analysis related to security customer data against transaction data so that the company can find out the segmentation of registered customers and also so that companies can predict the transaction patterns of customers in the company. In processing transaction data, the RFM (Recency, Frequency, Monetary) model can be used as a way to group customers according to their business values. After doing the modeling using RFM, the data is clustered using the K-Means algorithm to find out the segmentation in the RFM model in each group. The RFM model that has been clustered will produce segments based on the RFM group. In this data, a linear regression analysis process is carried out where each group and segment is analyzed and predicted related to variables such as recency, monetary and frequency. The results of data grouping, customer segmentation and also predictions with linear regression can be one of the company's references to make a business decision. From the linear regression process carried out on the RFM attributes, a prediction of the monetary value of the existing recency value is generated and the monetary value of the frequency can also be known with a fairly good error rate.