bluuebunny/crossref_metadata_2025 huggingface dataset:
RESENHA: MEYER, Victor. Determinações históricas da crise da economia soviética. Salvador: EDUFBA, 1995. p.183.
Authors: Motta de Lima Adelaide
Published: September 2023

Após um longo período de estudos voltados para a compreensão do pensamento marxista e do ideário socialista, Victor Meyer dispõe-se à tarefa de rediscutir as razões que levaram a economia soviética a desintegrar-se. Sem se desprender de suas convicções metodológicas apresentadas inicialmente, Meyer preocupa-se em analisar a experiência da União Soviética, um exemplo de economia planificada que não resistiu, a despeito de sua existência por mais de meio século, tendo como motivação maior, nas palavras do próprio autor, compreender sob quais condições pode então vigorar uma economia desse tipo.
ABORTO: A PROBLEMÁTICA EM FEIRA DE SANTANA-BAHIA
Authors: Costa Souza Vera Lúcia
Published: September 2023

Este trabalho apresenta, na primeira parte, resultados de um levantamento da situação do aborto no Município de Feira de Santana, a partir do registro de ocorrência de curetagem pós-aborto em institui- ções hospitalares da sede do Município e, na segunda parte, a caracte- rização da mulher que abortou, a caracterização do aborto e os tipos de complicações apresentadas por essas mulheres. A reflexão sobre esses dados por parte das autoridades sanitárias e profissionais de saúde conclui-se, deve promover estratégias de implementação dos programas de planejamento familiar e prevenção de gravidez indesejada.
CONSUMO DE ORTHEZIA PRAELONGA DOUGLAS, 1891 (INSECTA: ORTHEZIIDAE) POR OXYSTYLA PULCHELLA SPIX, 1827 (GASTROPODA: BULIMULLIDAE) EM LABORATÓRIO
Authors: Cruz Jucelho Dantas , Marques Oton Meira , Souza do Nascimento Antonio
Published: September 2023

Este trabalho teve o objetivo de estudar a quantidade de ninfas e adultos de Orthezia praelonga Douglas, 1891, consumidas pelo caracol rajado Oxystyla pulchella Spix, 1827, bem como a preferência desse molusco em relação aos estádios de desenvolvimento da praga. Os dados foram obtidos no Laboratório de Entomologia do Centro Nacional de Pesquisa de Mandioca e Fruticultura Tropical (CNPMF/EMBRAPA) no município de Cruz das Almas-BA, a partir de 20 caracóis confinados em placas de Petri. Os resultados permitem concluir que, O. pulchella prefere alimentar-se da forma jovem de O. praelonga podendo ser utiliza- do no manejo integrado desta importante praga da citricultura.
Dual-mode LiDAR SoC with an on-chip interframe filter and common optical platform design for keystone correction and auto-focus
Authors: Wang Jier , Yu Hengwei , Yin Chiang Patrick
Published: September 2023

This paper presents an innovative methodology that incorporates direct time-of-flight technology into intelligent sensing for projectors, along with a lightweight, dual-mode optically integrated LiDAR system. The proposed LiDAR system-on-chip, which utilizes a single-photon avalanche diode and time to digital converter with 0.13 µm bipolar CMOS DMOS technology, integrates an on-chip interframe filter, a common optical platform design, and a lightweight keystone correction assist algorithm. This comprehensive integration enables the system to achieve a measurement range of 11 m with 1% relative precision (simulations indicate the potential to achieve 30 m) in auto-focus mode. Additionally, it facilitates high frame-per-second keystone correction within a range of ±30∘ with an error of ±2∘ under illumination conditions of 20 klux.
Frequency tunable single photon diode based on giant atom coupling to a waveguide
Authors: Cai Guoqing , Lu Yunning , Ma Xiao-San , Cheng Mu-Tian , Huang Xianshan
Published: September 2023

The single photon scattering properties in a waveguide coupling to a giant atom with a three-level system are investigated theoretically. One of the transitions of the giant atom couples to the waveguide at two points while the other one is driven by a classical field. Using the analytical expressions of the single photon scattering amplitudes, the conditions for realizing perfect single photon nonreciprocal scattering are discussed in both Markovian regime and non-Markovian regime. In the Markovian regime, the perfect non-reciprocity can be realized by adjusting the external classical field, the energy dissipation of the giant atom, the phase difference between the two coupling strengths and the accumulated phase resulting from the photon propagating between the two coupling points. In the non-Markovian regime, the non-reciprocal scattering phenomenon becomes more abundant due to the time delay. However, the analytical results show that the perfect non-reciprocity can still be achieved. When the incident photon is resonant with the giant atom, the nonreciprocity can be switched by controlling the classical field. For the non-resonant single photon, one can adjust the Rabi frequency of the classical field to obtain the perfect non-reciprocal single photon transmission. Our work provides a manner to realize a frequency tunable single photon diode.
Optical vector fields with kaleidoscopic quasicrystal structures by multiple beam interference
Authors: Tuan Pi-Hui , Huang Ling-Qi
Published: September 2023

An easily accessible approach is proposed to create structured beams with various quasicrystal structures and polarization distributions based on multi-beam interference. By controlling the azimuthally-dependent polarization for Q evenly and circularly distributed beams to be interfered, the intensity and polarization structures for the generated quasicrystal field with Q-fold rotational symmetry are flexibly adjusted. Using the diffraction theory for interfering Q vector Gaussian beams, an analytical wave function is derived to reconstruct the polarization-resolved intensities and the distributions of Stokes parameters measured in the experiment. With good agreement between the numerical and experimental results, the derived wave function is further employed to characterize the propagation-variant states of polarization, providing fundamentally important information for the vector quasicrystal beams.
Fabrication and characterization of indium fluoride multimode fused fiber couplers for the mid-infrared
Authors: Séguin Alexis , Becerra-Deana Rodrigo Itzamná , Virally Stéphane , Boudoux Caroline , Godbout Nicolas
Published: September 2023

Results of the fabrication and characterization of optical fiber couplers made of multimode step-index fluoroindate (InF3) fibers are presented. The fabrication setup was customized for this type of glass with a constant source of controlled nitrogen flow heated to a target temperature with an accuracy ±1°C. Combined with a novel fast fusion approach and with excellent control of the viscosity throughout the process, the clean gas flow and well-controlled temperature enable the fabrication of fused fiber couplers absent of any noticeable crystallization. A coupling ratio of 45/55 was achieved, with an excess loss of 0.35 dB, at 1.7 µm. To the best of our knowledge, this represents the first low excess loss (<1 dB), multimode, InF3 fiber couplers.
Terahertz diffractive imaging with saturated data inpainting
Authors: Tsiplakova Elizaveta G. , Perraud Jean-Baptiste , Guillet Jean-Paul , Mounaix Patrick , Petrov Nikolay V.
Published: September 2023

Multiplane iterative phase retrieval is a promising approach to diffraction imaging, which accurately determines the topographic and internal characteristics of various objects. Nevertheless, the detection systems used often have a limited dynamic range, resulting in overexposure of recorded intensity distributions. In this Letter, we present a novel, to the best of our knowledge, reconstruction algorithm that inpaints saturated areas on the measured intensity datasets and reliably retrieves wave complex amplitude. The proposed technique can be used in various spectral ranges, while we have tested it in the terahertz frequency range, where the problem of sources and detectors is most acute. We show that retrieved amplitude and phase distributions have a quality comparable to that of the images reconstructed from the reference high dynamic range technique. Herewith, the proposed approach seriously simplifies the process of data acquisition, what expands the possibilities in the design of measurement tools and studies of dynamic scenes.
Erbium-doped fiber amplifier (EDFA)-assisted laser heterodyne radiometer (LHR) working in the shot-noise-dominated regime
Authors: Li Jun , Xue Zhengyue , Shen Fengjiao , Wang Jingjing , Li Yue , Wang Guishi , Liu Kun , Chen Weidong , Gao Xiaoming , Tan Tu
Published: September 2023

A near-infrared (NIR) laser heterodyne radiometer (LHR) using a 1603 nm distributed feedback (DFB) laser, associated with an erbium-doped fiber amplifier (EDFA), used as a local oscillator (LO) was developed. The EDFA was customized for automatic power control to amplify and stabilize the LO DFB laser power, which allowed to reduce baseline fluctuation and thus make the processed atmospheric transmission spectrum with higher precision. The operation of the EDFA-assisted LHR with a shot-noise-dominated performance was analyzed and experimentally achieved by optimizing the LO power. The performance of the developed LHR was evaluated and verified by measuring an atmospheric CO2 absorption spectrum, and the atmospheric CO2 column abundances were then retrieved based on the optimal estimation method (OEM). The results were in good agreement with the Greenhouse Gas Observation Satellite (GOSAT) data. The EDFA-assisted LHR firstly reported in this Letter has a potential to further improve the measurement precision of atmospheric greenhouse gases using ground-based LHR remote sensing.
Balloon-like optical fiber sensor for simultaneous displacement and temperature measurement based on an anti-resonance mechanism
Authors: Zhang Yaxun , Huang Zhiliang , Liu Yuxin , Li Wenmi , Tang Xiaoyun , Liu Zhihai , Zhang Yu , Yuan Libo
Published: September 2023

We propose and experimentally demonstrate a balloon-like optical fiber sensor with an anti-resonance mechanism for the simultaneous measurement of displacement and temperature. The sensor consists of a hollow-core fiber spliced between two single-mode fibers and bent into a balloon-like shape. The balloon-like structure not only increases the contrast of the spectral lines but also improves the displacement sensitivity. Theoretical and experimental results show that the incidence angle of light varies with the change in displacement, resulting in the variation of spectral intensity based on the anti-resonance mechanism. In addition, the temperature change causes the wavelength drift of the spectrum. Thus, by separately demodulating the intensity and wavelength of this sensor, it is possible to measure displacement and temperature simultaneously. The sensitivity of the displacement and temperature of the sensor is 0.043 dB/µm and 20.94 pm/°C, respectively. The proposed optical fiber sensor has a compact structure and simple preparation, making it an ideal choice for simultaneous measurement of displacement and temperature in the fields of micro-manufacturing and structural monitoring in the future.
Fever-like temperature bursts promote competence development via an HtrA-dependent pathway in Streptococcus pneumoniae
Authors: Maziero Mickaël , Lane David , Polard Patrice , Bergé Mathieu
Published: September 2023

Streptococcus pneumoniae(the pneumococcus) is well known for its ability to develop competence for natural DNA transformation. Competence development is regulated by an autocatalytic loop driven by variations in the basal level of transcription of thecomCDEandcomABoperons. These genes are part of the early gene regulon that controls expression of the late competence genes known to encode the apparatus of transformation. Several stressful conditions are known to promote competence development, although the induction pathways are remain poorly understood. Here we demonstrate that transient temperature elevation induces an immediate increase in the basal expression level of thecomCDEoperon and early genes that, in turn, stimulates its full induction, including that of the late competence regulon. This thermal regulation depends on the HtrA chaperone/protease and its proteolytic activity. We find that other competence induction stimulus, like norfloxacin, is not conveyed by the HtrA-dependent pathway. This finding strongly suggests that competence can be induced by at least two independent pathways and thus reinforces the view that competence is a general stress response system in the pneumococcus.
Determinants of Covid-19 vaccine uptake among the elderly aged 58 years and above in Kericho County, Kenya: Institution based cross sectional survey
Authors: Anino Calvince Otieno , Wandera Immaculate , Masimba Zachary Ondicho , Kirui Collins Kipkosgei , Makero Carjetine Syallow , Omari Phanice Kerubo , Sanga Philip
Published: September 2023

Hesitancy to Covid-19 vaccine is a global challenge despite the compelling evidence of the value of vaccine in preventing disease and saving lives. It is suggested that context-specific strategies can enhance acceptability and decrease hesitancy to Covid-19 vaccine. Hence, the study determined uptake and determinants of Covid-19 vaccine following a sustained voluntary vaccination drive by Kenyan government. We conducted institution based cross-sectional survey of 1244 elderly persons aged 58 to 98 years in the months of January, February and March, 2022. A multinomial logistic regression analysis was used to investigate determinants of Covid 19 vaccine uptake. The predictor variables included socioeconomic and demographic characteristics, convenience and ease of access of the vaccine, collective responsibility, complacency and the three dimensions of confidence; trust in safety, trust in decision makers and delivery system. The findings are reported as the adjusted odd ratio (AOR) at 95% confidence interval (CI). Significant level was considered at p <0.05. The results from the multinomial logistic regression analysis indicated that advanced age and presence of chronic disease were associated with increased odds of doubt on Covid 19 vaccine, while long distance from vaccination centers was associated with increased odds of delay in vaccination. Overall, the findings of this study provided valuable insights into the factors influencing vaccine hesitancy among the elderly population in Kenya and will inform the development of targeted interventions to increase vaccine acceptance and uptake in this population.
Successful outcomes for patients with drug-resistant tuberculosis despite civil unrest and COVID-19 in Haiti
Authors: Vilbrun Stalz Charles , Souroutzidis Ariadne , Walsh Kathleen F. , Ellis Joshua , Guiteau Colette , Delva Sobieskye , Joissaint Guy , Joseph Patrice , Pape Jean William , Koenig Serena P.
Published: September 2023

Globally, treatment outcomes for people with multi-drug/rifampin-resistant tuberculosis (MDR/RR-TB) are sub-optimal, with MDR/RR-TB programs further weakened due to the COVID-19 pandemic, and in Haiti, by severe civil unrest. We assessed the impact of these disruptions on treatment outcomes at GHESKIO, in Port-au-Prince, Haiti. We conducted a retrospective analysis including all adults (age ≥18 years) who initiated MDR/RR-TB treatment at GHESKIO from 2010 to 2020. We assessed predictors of poor treatment outcome using multivariable logistic regression, adjusting for baseline characteristics and year of treatment. 453 patients initiated treatment for MDR/RR-TB at GHESKIO. Median age was 31 (IQR: 25, 40), 233 (51.4%) were male, and 100 (22.1%) were living with HIV. Three hundred sixty-nine patients (81.5%) achieved cure, 42 (9.3%) died, 40 (8.8%) were lost to follow-up and 2 (<1%) failed treatment. HIV status was associated with poor treatment outcome (aRR: 1.65 (95% CI: 1.09, 2.48)) but there was no difference by year of treatment initiation. Outcomes for patients with MDR/RR-TB remained outstanding, even during the COVID-19 pandemic and severe civil unrest in Haiti. We attribute this resilience in care to the adaptability of program staff and provision of economic and psychosocial support.
Hypnotic suggestion versus sensory modulation of bodily awareness
Authors: Apelian C. , Terhune D. B. , De Vignemont F.
Published: September 2023

Bodily awareness arises from somatosensory, vestibular, and visual inputs but cannot be reduced to these incoming sensory signals. Cognitive factors are known to also impact bodily awareness, though their specific influence is poorly understood. Here we systematically compared the effects of sensory (bottom-up) and cognitive (top-down) manipulations on the estimated size of body parts. Toward this end, in a repeated-measures design, we sought to induce the illusion that the right index finger was elongating by vibrating the biceps tendon of the left arm whilst participants grasped the tip of their right index finger (Lackner illusion; bottom-up) and separately by hypnotic suggestion (top-down), with a sham version of the Lackner illusion as an active control condition. The effects of these manipulations were assessed with perceptual and motor tasks to capture different components of the representation of body size. We found that hypnotic suggestion significantly induced the illusion in both tasks relative to the sham condition. The magnitudes of these effects were stronger than those in the Lackner illusion condition, which only produced a significantly stronger illusion than the sham condition in the perceptual task. We further observed that illusion magnitude significantly correlated across tasks and conditions, suggesting partly shared mechanisms. These results are in line with theories of separate but interacting representational processes for perception and action and highlight the influence of cognitive factors on low-level body representations.
Desiccation of ecosystem-critical microbialites in the shrinking Great Salt Lake, Utah (USA)
Authors: Frantz Carie , Gibby Cecilia , Nilson Rebekah , Stern Cole J. , Nguyen Maggie , Ellsworth Cody , Dolan Hank , Sihapanya Alvin , Aeschlimann Jake , Baxter Bonnie K.
Published: September 2023

Great Salt Lake hosts an ecosystem that is critical to migratory birds and international aquaculture, yet it is currently threatened by falling lake elevation and high lakewater salinity resulting from water diversions in the upstream watershed and the enduring megadrought in the western United States. Microbialite reefs underpin the ecosystem, hosting a surface microbial community that is estimated to contribute 30% of the lake’s primary productivity. We monitored exposure, desiccation, and bleaching over time in an area of microbialite reef. During this period, lake elevation fell by 1.8 m, and salinity increased from 11.0% to 19.5% in open-water portions of the outer reef, reaching halite saturation in hydrologically closed regions. When exposed, microbialite bleaching was rapid. Bleached microbialites are not necessarily dead, however, with communities and chlorophyll persisting beneath microbialite surfaces for several months of exposure and desiccation. However, superficial losses in the mat community resulted in enhanced microbialite weathering. In microbialite recovery experiments with bleached microbialite pieces, partial community recovery was rapid at salinities ≤ 17%. 16S and 18S rRNA gene sequencing indicated that recovery was driven by initial seeding from lakewater. At higher salinity levels, eventual accumulation of chlorophyll may reflect accumulation and preservation of lake material in halite crusts vs. true recovery. Our results indicate that increased water input should be prioritized in order to return the lake to an elevation that submerges microbialite reefs and lowers salinity levels. Without quick action to reverse diversions in the watershed, loss of pelagic microbial community members due to sustained high salinity could prevent the recovery of the ecosystem-critical microbialite surface communities in Great Salt Lake.
Pre-service ESL teachers and undocumented students in the United States
Authors: Cramer Gregory J.
Published: September 2023

This article describes a teacher education course that attempts to raise pre-service English as a second language (ESL) teacher candidates’ awareness of undocumented students in US schools. Candidates completed a critical pre-reflection on the first day of class and a critical post-reflection on the last day of class. In the intervening period teacher candidates participated in guided reflective practice to help them process scholarly books, peer-reviewed articles, documentary film and first-person narratives regarding undocumented students and their families. The pre-data indicate most teacher candidates are unaware of undocumented students and the issues they face in school and society. The post-data suggest that encouraging teacher candidates to critically reflect on information regarding undocumented students has potential to make candidates more effective teachers of undocumented students.
Acculturation and integration over time: Russian-speaking teachers 30 years after the great immigration to Israel
Authors: Gindi Shahar , Erlich Ron Rakefet
Published: September 2023

This mixed-methods study examined the sense of belonging of Russian-speaking immigrant teachers, who immigrated to Israel in the 1990s from the Former Soviet Union (FSU). The study has two methodological parts. In the first part, 57 Russian-speaking teachers were compared to a national sample of Hebrew-speaking teachers on demographics and self-efficacy. In the second part, 34 of the 57 Russian-speaking teachers answered an acculturation questionnaire and two open-ended questions. The findings, both quantitative and qualitative, indicate positive integration of FSU immigrant teachers in Israel. Their feelings towards the school team and management were no different than those of other teachers. The teachers described a sense of belonging through shared care for students, shared content-related teamwork, friendships and school events. Differences were found in favour of veteran Israeli teachers in the percentage of homeroom teachers and managerial positions. Conclusions about migration and accommodation within the education system are discussed.
Application of Computational Modeling in Mechanics
Authors: Upasani Shreeniket
Published: September 2023

Teaching using computer simulations can be one of the efficient ways to make students understand the physics concept easily. Abundant existing work available to students in this area is not easily understandable for novice learners which lead to the inception of this project. This topic involves taking certain concepts from mechanics like projectile motion, simple harmonic motion, and gravitation, etc. with in-depth study and creating simulations of those concepts in python programming language, i.e. creating models which are at a reasonable degree of accuracy. The methodology comprises of 3 main stages which include i) background study of physical phenomena, ii) literature review to deeper understanding of chosen concepts and designing the models on paper with the actual implementation in Python, iii) analysis and conclusion. The outcome of the project is the creation of an Open-Access library which will be easily comprehensible with a basic understanding of physics.
Rhythm in Sport: Adapted rhythmic training to optimize timing and enhance performance in athletes
Authors: McCrary James Matthew , Gould Michael
Published: September 2023

Precise timing, the ability to control exactly when something should be done, integrates physical characteristics like strength, power, and technique into highly skilled sporting actions. Despite timing’s indispensability to peak athletic performance, there exist few timing-specific training methods. ‘Rhythm in Sport’ is a new training approach which adapts exercises from drummers, the elite timing experts, to athletes. This progressive series of rhythmic exercises cultivates a detailed, ‘top down’ cognitive framework of time which enhances movement precision. Use cases demonstrate broad applications of Rhythm in Sport across individual and team sports.
Vivência de um cursinho de educação popular de Iturama, Minas Gerais, em decorrência da pandemia de Covid-19
Authors: Santos Micael Junio dos , Velasques Jecika Maciel , Freitas Leandro Barbosa de , Pimentel João Vinícius Albuquerque , Manoel Gabriel Gustavo Galvão
Published: September 2023

Pelas dificuldades de inserção no mercado de trabalho, mesmo com o incentivo governamental no acesso ao ensino privado, o ensino superior público tem se tornado cada vez mais cobiçado. Esses fatores culminam no propósito da educação popular, em minimizar diferenças educacionais vivenciadas por alunos em situação de vulnerabilidade, baseada na metodologia freiriana. Como ferramentas para este propósito, surge a proposta de Cursinhos de Educação Popular como uma iniciativa de apoio na preparação destes alunos para a entrada no meio universitário. O presente relato de experiência visa abordar a trajetória do Cursinho de Educação Popular, em Iturama-MG, durante a pandemia de Covid-19, englobando a reformulação e a adaptabilidade dos métodos de ensino tradicional. Ainda, o relato apresenta os resultados obtidos durante essa trajetória até a aprovação nas universidades.
Do barro à música
Authors: Santos Marília
Published: September 2023

O Alto do Moura, maior centro de Arte Figurativa das Américas, é um bairro da cidade de Caruaru, conhecido principalmente pela produção da arte figurativa do barro. Além do artesanato do barro, há vários outros tipos de expressões, a maioria com música, que são realizadas pelos moradores do lugar – ou por outras pessoas que vão ali para fazer tais expressões acontecerem – dentre elas: Reisado, Bacamarte, poesia, pífano, entre outras. Um dos aspectos das expressões artísticas e culturais realizadas no Alto do Moura é a relação com a arte figurativa do barro e com as Festas Juninas. Este artigo, que tem como objetivo discutir como essas expressões estão se modificando para continuarem existindo, é um recorte de uma pesquisa qualitativa, com procedimentos metodológicos etnográficos e trabalho de campo, baseados em entrevistas semiestruturadas, observações e vivência pessoal. Parte dos dados foi obtida por meio do trabalho realizado para o “Inventário do Ofício dos Artesãos e Artesãs em Barro do Alto do Moura – Caruaru-PE”. É possível notar que, para se manterem vivas, as expressões do Alto do Moura transitam entre o novo (mudança) e o velho (tradição), arte figurativa do barro e Festas Juninas.
Licenciatura em Educação do Campo
Authors: Veronese Monaise Cristina Borges Silva , Sivieri-Pereira Helena de Ornellas , Miranda Camila Lima
Published: September 2023

Neste trabalho discute-se as representações sociais que alicerçam as motivações dos estudantes para o ingresso no curso de Licenciatura em Educação do Campo (LECampo) da Universidade Federal do Triângulo Mineiro. Os instrumentos utilizados para a construção dos dados foram: questionário, entrevista e grupo focal. Para a interpretação das informações, utilizamos a Análise de Conteúdo, proposta por Bardin. Como resultado, elencou-se algumas categorias, entre elas, a “Escolha da Profissão”, discutida neste artigo. Verificou-se que a motivação dos alunos para cursar a LECampo é fruto da influência do meio em que vivem e da representação social de que esse curso oferece uma grande oportunidade de inserção no Ensino Superior, resultando em mudança de vida para os jovens e adultos do campo. Ficou claro, ainda, que o ingresso no curso contribui para reverter um quadro histórico de desigualdade no acesso dos camponeses à educação.
ANALISIS KEBUTUHAN JARINGAN DISTRIBUSI 20 KV UNTUK MEMENUHI PELANGGAN INDUSTRI BARU 15 MW KAWASAN RANDU GARUT
Authors: Tazkia Hasna Rahma
Published: September 2023

GI Randu Garut has two transformers with a capacity of 2 x 60 MVA and has 14 existing feeders. PT. PLN UP3 Semarang received a new customer application for the industrial area on Jl. Mt. Kelir Raya 56, Karanganyar, Kec. Monument, Semarang City, Central Java. Installation of customer power is carried out in stages, at an initial stage of 15 MW. Analysis of the need for a 20 kV distribution network is needed to meet the customer's power demand. Meeting the demand for connecting new customers with a power of 15 MW requires supplies from 2 feeders, namely RDT09, an existing feeder with a length of 2430 meters, and building a new feeder RDT16 with a length of 2,419 meters. The RDT09 and RDT16 feeders will be supplied by transformer 2 GI Randu Garut. 15 MW is charged to transformer 2 resulting in transformer 2 capacity will change from 55.5% to 83.3%. After adding 15 MW of load, the voltage drop at the feeder end of RDT 09 is 1.20% and RDT 16 is 1.05%. The voltage drop on the existing 14 feeders is at a value of 0.20% to 5.38%. The voltage drop value still meets the SPLN 72 standard in 1987, which is below +5% and -10%. The power loss of the Randu garut GI after adding 15 MW of load to 1,208.9 kW or 1.56%.
PENGISI DAYA BATERAI LiFePO4 SEBAGAI SUMBER ENERGI PADA SEPEDA LISTRIK
Authors: Pradhana Mahendra Aryo
Published: September 2023

Saat ini, baterai lithium-ion telah menjadi teknologi baterai pilihan untuk perangkat portabel, kendaraan listrik dan penyimpanan jaringan. Teknologi rechargeable battery atau baterai isi ulang pada baterai jenis lithium-ion semakin membantu memenuhi kebutuhan manusia. Proses pengisian pada baterai isi ulang dilakukan dengan mengalirkan arus terus-menerus hingga tegangan baterai bertambah sampai nilai tertentu karena pengisian berlebihan dapat merusak baterai sehingga baterai tak dapat bertahan lama. Oleh karena itu diperlukan spesifikasi pengisian yang tepat pada setiap baterai agar baterai tidak berlebihan saat dilakukan pengisian. Ada beberapa metode dalam pengisian normal baterai, salah satunya adalah CC-CV (Constant Current - Constant Voltage) yaitu metode pengisian baterai dengan mengkombinasikan Constant Current dan Constant Voltage secara bergantian. Pada penelitian ini penulis meneliti tentang pengujian pengisian daya pada baterai dengan metode Constant Current (CC) dan Constant Voltage (CV) dengan charger. Charger baterai ini dapat diatur untuk melakukan Constant Current (CC) dengan nilai 6 A dan Constant Voltage (CV) dengan nilai 0 – 43 V. Pengisian dilakukan selama 54 menit dengan tegangan awal pada baterai sebesar 35,12 V diisi dengan metode Constant Current dimana arus dijaga sebesar 6 A selama 42 menit. Setelah itu beralih menjadi mode Constant Voltage dimana tegangan dijaga sebesar 42 V hingga arus mendekati 0 A.
Andean Tubers, Morphological Diversity, and Agronomic Management: A Review
Authors: Steffanny Sanchez-Portillo  , Salazar Sánchez Margarita del Rosario , Solanilla-Duque Jose Fernando , Rodríguez Herrera Raúl
Published: September 2023

Andean tubers refer to a variety of roots and underground stems cultivated in the Andean region, which spans a significant portion of South America. Among these tubers are Arracacia xanthorrhiza, Tropaeolum tuberosum, Oxalis tuberosa, and Ullucus tuberosus. These tubers exhibit resistance to pests, extreme environmental conditions such as drought or frost, and various soil types. It also displays morphological diversity in terms of shape, color, and size, as well as nutritional variation depending on the specific variety grown and the type of propagation employed. While some agronomic requirements are similar for these tubers, others differ due to factors such as crop management, fertilization techniques, plant characteristics, and other influences that contribute to species-level variations. Therefore, it is important to understand the optimal cultivation conditions for achieving high production yields, comprehending the range of tuber variability, and exploring potential applications for these Andean tubers. It is worth noting that there is a lack of up-to-date information on this subject, highlighting the need for further research and exploration. Efforts have been made to classify and differentiate each tuber based on specific physical characteristics, utilizing reported taxonomic data. This classification system assists producers in distinguishing between the various tuber species and their respective varieties.
Review: Sylfeini Cyfieithu Testun: Cyflwyniad i Gyfieithu Proffesiynol by Ben Screen, Gwasg Prifysgol Cymru 2021, 266 pp
Authors: Listewnik Marta
Published: September 2023

REVIEW:Sylfeini Cyfieithu Testun: Cyflwyniad i Gyfieithu Proffesiynol by Ben Screen, Gwasg Prifysgol Cymru 2021, 266 pp.Review by MARTA LISTEWNIK, PhD, Adam Mickiewicz University, Poznań
A single center prospective study: Influences of different hip flexion angles on the measurement of lumbar spine bone mineral density by dual energy X-ray absorptiometry
Authors: Yan Lisheng , Cai Donglu , Zhuang Huafeng , Lin Yongjun
Published: September 2023

To investigate whether there is an influence on the results of lumbar spine bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA) under three different hip flexion angles (90°, 45°, 0° of hip flexion). We collected a total of 60 outpatients, including 44 females (56.4 ± 5.7 years) and 16 males (50.2 ± 13.7 years). The DXA results of the lumbar spine were scanned and analyzed in three different positions with hip flexion of 90°, 45°, and 0°. We found that there was no significant difference in the area of interest, bone mineral content, BMD, and vertebral body height of the lumbar vertebral body measured by DXA in three hip flexion positions of 90°, 45°, and 0°; Pearson’s correlation analysis showed that lumbar BMD in hip flexion 90° was correlated with it in hip flexion 45° (r = 0.998, P＜0.01) and in hip flexion 0° (r = 0.996, P＜0.01) respectively. There was no statistically significant difference in the diagnosis of BMD between 90° and 45° hip flexion (P = 0.903), which was the same as 90° and 0° hip flexion (P = 0.822). Therefore, we conclude that different hip flexion angles can be used in lumbar BMD detection by DXA, which is beneficial to patients who have difficulty in hip flexion, especially for elderly patients with osteoporosis.
Mechanistic-Empirical Properties and Long-Term Potential of Warm Mix with Cecabase
Authors: Anand Sanchit , Gaur Arun , Singh Shatrunjay Yash
Published: September 2023

The production, laying, and storage of asphalt mixtures is one of the primary causes of pollution from activities associated with road infrastructure. Lowering the manufacturing temperature of bituminous mixes without impairing or lowering their mechanical performance is necessary for the cleaner production of these mixes. The asphalt paving industry is always looking for technologies to improve the material’s performance, increase construction efficiency, save resources, and promote environmental responsibility. Warm-mix asphalt (WMA) is one such technology that is currently being tested. WMA refers to a collection of technologies that allow for a decrease in the temperatures at which asphalt mixes are prepared and applied. Although WMA has generally performed well up to this point, further research is required to confirm that WMA pavement life is equal to or longer than hot-mix asphalt (HMA) pavement life, maybe via long-term pavement performance prediction. The purpose of this research is to initially prepare a warm mix using Cecabase in varying proportions and then to use collected laboratory and field data as inputs into the IITPAVE and Highway Development and Management (HDM-4) tools to determine if there are statistically significant variations in the pavement design and deterioration when comparing WMA and HMA. In this investigation, Cecabase was added to vicosity grade 40 binder at concentrations of 0.2 %, 0.3 %, 0.4 %, and 0.5 % and compacted at 100°C. Marshall Mix Design was also conducted to determine the optimum binder content of the mix. The study’s findings show that, despite being subjected to environmental exposures and heavy traffic, the warm-mix sections performed as well as or better than the control hot-mix sections. The performance of the warm-mix sections appeared to be enhanced in terms of pavement deterioration due to increased compaction and less oxidation of binder as a result of lower manufacturing and placement temperatures.
Voltage- and Calcium-Gated Membrane Currents Tune the Plateau Potential Properties of Multiple Neuron Types
Authors: Neveu Curtis L. , Smolen Paul , Baxter Douglas A. , Byrne John H.
Published: September 2023

Many neurons exhibit regular firing that is limited to the duration and intensity of depolarizing stimuli. However, some neurons exhibit all-or-nothing plateau potentials that, once elicited, can lead to prolonged activity that is independent of stimulus intensity or duration. To better understand this diversity of information processing, we compared the voltage-gated and Ca2+-gated currents of three identified neurons from hermaphroditicAplysia californica. Two of these neurons, B51 and B64, generated plateau potentials and a third neuron, B8, exhibited regular firing and was incapable of generating a plateau potential. With the exception of the Ca2+-gated potassium current (IKCa), all three neuron types expressed a similar array of outward and inward currents, but with distinct voltage-dependent properties for each neuron type. Inhibiting voltage-gated Ca2+channels with Ni+prolonged the plateau potential, indicatingIKCais important for plateau potential termination. In contrast, inhibiting persistent Na+(INaP) blocked plateau potentials, empirically and in simulations. Surprisingly, the properties and level of expression ofINaPwere similar in all three neurons, indicating that the presence ofINaPdoes not distinguish between regular-firing neurons and neurons capable of generating plateau potentials. Rather, the key distinguishing factor is the relationship betweenINaPand outward currents such as the delayed outward current (ID), andIKCa. We then demonstrated a technique for predicting complex physiological properties such as plateau duration, plateau amplitude, and action potential duration as a function of parameter values, by fitting a curve in parameter space and projecting the curve beyond the tested values.

SIGNIFICANCE STATEMENTPlateau potentials are intrinsic properties of neurons that are important for information processing in a wide variety of nervous systems. We examined three identified neurons inAplysia californicawith different propensities to generate a plateau potential. No single conductance was found to distinguish plateau generating neurons. Instead, plateau generation depended on the ratio between persistent Na+current (INaP), which favored plateaus, and outward currents such asIKCa, which facilitated plateau termination. Computational models revealed a relationship between the individual currents that predicted the features of simulated plateau potentials. These results provide a more solid understanding of the conductances that mediate plateau generation.
Investigación Educativa, Políticas Públicas y Práctica Docente. Triángulo de Geometría Desconocida
Authors: Zorrilla Margarita
Published: September 2023

El documento se encuentra organizado en cinco partes. En la primera se exponen los argumentos sobre la relación entre investigación educacional y su uso para la toma de decisiones. La segunda parte plantea el tema de las relaciones entre la investigación educacional, la práctica docente y las políticas públicas. La tercera parte es una reflexión sobre la relación entre investigación, práctica docente y políticas desde la perspectiva de la investigación educacional. En el cuarto apartado señala cuestiones relativas a la divulgación (trans-misión) de la investigación educacional a diferentes audiencias. En la última parte el autor concluye sobre el tema.Descriptores: Investigación educativa, calidad y equidad educativa, educación pública. Educational Research, Public Policies and Teaching Practice.  The Unknown Geometry TriangleThis document is organized in five parts. In the first part the author exposes arguments on the relation among educational research and the use of it to take decisions. The second part rises on the subject of relations hold between educational research, teaching practice and public policies. The third part is a reflection on the relation between research and teaching practice standing from the educational research point of view. The fourth argues about the divulgation (trans-mission) of the educational research to different audiences. On the final section, the author presents hers and Muñoz Repiso’s conclusions on the subject. Keywords: Educational research, quality, equity, public education
Valores y Autonomía del Centro Docente
Authors: Muñoz-Repiso Mercedes
Published: September 2023

La intención de estas páginas es trasmitir una sola idea: el tema de los valores procurando no teorizar ni repetir lo ya dicho en otros lugares, ni entrar en cuestiones estrictamente prácticas, relativas al quehacer diario de las escuelas. Tan sólo pretende dar algunas pinceladas que sirvan de reflexión y recordatorio o llamada de atención, situar estas reflexiones en el contexto español actual y echar un vistazo a algunas preocupaciones europeas sobre este tema.Referencia original:Muñoz-Repiso, M. (1994). Valores y autonomía del centro docente. En A. Villa (coord.), Autonomía institucional de los centros educativos: presupuestos, organización y estrategias (pp. 351-364). Bilbao: Universidad de Deusto.Descriptores: Autonomía, valores, centro docente. Values and Autonomy of the Teaching CenterThe intention of these pages is to pass on a single idea: the value, trying not to theorize neither to repeat what has already been said in other places, nor to enter strictly practical questions, regarding the daily tasks of the schools. It only tries to give some brush-strokes that serve as reflection and reminder or call of attention, to locate these reflections in the present Spanish context and to throw a look to some European concerns on this subject.Key words: Autonomy, values, teaching center.
Análisis de las Redes Sociales Mediante la Visión de la Comunidad Educativa desde una Perspectiva Micropolítica
Authors: Trujillo Torres Juan Manuel , Cáceres Reche María Pilar
Published: September 2023

Reconocer el valor del establecimiento de redes colaborativas comunitarias en la actualidad se convierte en una necesidad y al mismo tiempo en una oportunidad para la mejora de las dinámicas de desarrollo de las organizaciones educativas. Pero, en muchas ocasiones, esos procesos colaborativos no son del todo transparentes y por ello, una visión micropolítica para su entendimiento y aprehensión parece oportuna. Este análisis consecuente puede ofrecer luces y advertir y considerar las sombras que puedan limitar los procesos innovadores y de mejora de nuestros centros educativos. Nuestro estudio es un ejemplo de ello a través de un proceso de investigación etnográfica.
Ampliando el Territorio: Algunas Claves sobre la Participación de la Comunidad Educativa
Authors: Traver Martí Joan A. , Sales Ciges Auxiliadora , Moliner García Odet
Published: September 2023

En este artículo nos acercamos al proceso de construcción de una escuela más comunitaria, intercultural e inclusiva, cimentada en procesos de participación democrática de la comunidad, desde la perspectiva del equipo de investigación. El objetivo básico del proyecto general es impulsar la transformación de cada centro en una escuela intercultural inclusiva mediante procesos de investigación-acción orientados desde una perspectiva sociocomunitaria. Siguiendo las pautas de la investigación-acción participativa diseñamos un bucle de intervención educativa de cadencia anual. La finalidad es visualizar y conseguir transformaciones reales en un curso académico, que nos den la medida de que el cambio y la mejora no solamente son necesarios, sino posibles. Para la recogida de información y el análisis de los datos hemos utilizado técnicas de investigación cualitativa con una orientación crítica y transformadora. Para ello hemos realizado entrevistas y grupos de discusión con los diferentes sectores de la comunidad educativa, y grupos mixtos de análisis y trabajo. En el análisis de los datos hemos realizado un análisis de contenido apoyándonos en el sistema Nudist 7.0. Desde la reflexión sobre la experiencia vivida empezamos a entender cuáles son las principales dificultades, los obstáculos y las potencialidades que encontramos en este camino singular.Como resultado de este análisis identificamos algunos eslabones, que en forma de permisos o puertas de acceso, han marcado hitos significativos en este camino. La estructura de poder, la profesionalización de la institución y la mediación familiar definen los tres primeros eslabones por los que transitar. El liderazgo democrático, la implicación del profesorado y el ejercicio comprometido de la docencia, y las perspectivas sociocomunitarias en educación constituyen respectivamente tres claves que identificamos para avanzar en esta dirección. Claves que nos acercan al planteamiento deweyano de entender la escuela como un lugar único para vivir la democracia de manera participativa.
La Participación del Profesorado en un Proceso de Mejora en el Marco de “Una Escuela para Todos”
Authors: Martín Bris Mario , Muñoz Martínez Yolanda
Published: September 2023

El presente trabajo muestra el proceso llevado a cabo durante dos años (2007-2009), en el marco de un proyecto de colaboración entre un centro educativo de Educación Infantil y Primaria y el Departamento de Didáctica de la Universidad de Alcalá, cuya finalidad es la participación de la Comunidad Escolar, especialmente el profesorado, en un proceso interno de mejora de la calidad educativa. Las estrategias de cambio educativo, en este caso, se basan en la autoevaluación, reflexión y compromiso del profesorado en relación a una serie de medidas organizativas y metodológicas que se dirigen a crear las bases de una escuela inclusiva. A través de dos fases diferenciadas se va dando forma a una propuesta de mejora cuyos resultados se detallan en el presente artículo;  una primera basada en un análisis colectivo de la práctica docente como iniciación a la reflexión, a través de grupos de discusión con los docentes, entendiendo el análisis de la práctica como método de formación del profesorado;  de esta primera fase se extraen una serie de medidas dirigidas a la mejora de la calidad educativa con la idea de Educación para Todos como base. Dichas medidas tendrán su aplicación en la práctica en la segunda fase del Proyecto.
Utilização do Modelo CIPP na Avaliação de Programas Sociais: O caso do Projeto Educando para a Liberdade da SECAD/MEC
Authors: Bandeira Andriola Wagner
Published: September 2023

O artigo relata o uso do Modelo CIPP para avaliar o 2º Ciclo do Projeto Educando para a Liberdade(SECAD/MEC), implementado em seis Estados brasileiros, e que considerou quatro dimensões: o Contexto (macro, meso e micro), os Insumos (humanos e materiais), os Processos e os Produtos. Para tal, foi desenhada pesquisa ex post-facto direcionada a obter dados relevantes acerca das dimensões referidas, a partir das seguintes audiências: gestores e agentes de unidades prisionais; professores; alunos reclusos; técnicos estaduais envolvidos com a educação prisional. Os resultados demonstram que a efetividade social das atividades educacionais está consubstanciada nas mudanças qualitativas de natureza individual, que vêm sendo verificadas pelos vários protagonistas sociais que lidam com os alunos reclusos.
Calidad en la Educación Superior: Un Análisis Reflexivo sobre la Gestión de sus Procesos en los Centros Educativos de América
Authors: Villarruel Fuentes Manuel
Published: September 2023

El concepto de calidad y su establecimiento dentro de las instituciones educativas de nivel superior impone una serie de requisitos que hacen de él un problema a resolver. Los esfuerzos por alcanzar su comprensión y aseguramiento se han orientado hacia el adoctrinamiento del recurso humano, basados en la retórica academicista, lo que a llevado incluso a ignorar las concepciones rectoras que provienen de las ciencias sociales. Como es obvio, esta postura pragmática no contribuye a aclarar las causas que originan las resistencias sociales al tratar de implementarlo.