bluuebunny/crossref_metadata_2025 huggingface dataset:
La historia y los estudios rurales a partir de los sesenta: de la descolonización al medio ambiente y la soberanía alimentaria
Authors: Morell Mats
Published: April 2022

Este texto analiza el cambio temático en la historia rural desde los años sesenta del siglo pasado hasta nuestros días. Los primeros escritos se centraron en la transición del feudalismo al capitalismo, en el crecimiento de las condiciones previas del desarrollo industrial a través de desarrollos dentro de la sociedad agraria preindustrial y, en gran medida, en la agencia campesina. Más tarde, el enfoque cambió hacia los estudios que incorporaban temas ambientales, la sostenibilidad (y últimamente la resiliencia) de los sistemas históricos de producción agrícola y también los problemas de soberanía alimentaria. La hipótesis discutida es que muchos de los primeros escritos se inspiraron en la descolonización de las colonias asiáticas y africanas de Europa, la revolución (campesina) en China y el desarrollo de la sociología rural. La tendencia del cambio de enfoque actual se plantea relacionada con el surgimiento de más recientes agendas ambientales y temas relacionados con el libre comercio y el predominio del sector alimentario por parte de las grandes empresas transnacionales. La atención se centra principalmente en la historiografía escandinava.
El campesinado, un sujeto en la historiografía. Notas desde la Galicia del franquismo
Authors: Díaz-Geada Alba
Published: April 2022

Durante las décadas de los sesenta y setenta del siglo xx, los estudios campesinos se ocuparon de una clase social en discusión, cuestionada como sujeto revolucionario y como objeto de modernización. Desde aquel presente de cambio profundo, los historiadores se ocupaban de otra transición: la del feudalismo al capitalismo. Entre aquella etapa y nuestros días se fueron configurando notables mudanzas epistemológicas. En este texto proponemos un ejercicio reflexivo sobre los cambios en los enfoques para pensar las sociedades rurales contemporáneas. Basándonos en el estudio microhistórico de las transformaciones de las comunidades campesinas gallegas del franquismo, traemos a discusión una propuesta conceptual construida a partir de los aportes

de la teoría crítica. Desde ahí, argumentamos, es posible pensar la historia

en conflicto e incorporar lo popular a su comprensión, desvestidos

de prejuicios civilizatorios.
Rojo de vergüenza y condenado por cobarde: masculinidad, honor y duelos en la España decimonónica
Authors: Blanco Rodríguez Elia
Published: April 2022

Mediante el análisis del célebre «duelo de Carabanchel» (1870), este artículo indaga en la construcción de la masculinidad normativa de las clases medias y altas en la España de la segunda mitad del siglo xix, demostrando que la valentía constituía un elemento fundamental para esta identidad de género. En estas páginas se evalúan las dimensiones pública y privada del honor masculino, un valor determinado por la supremacía de lo espiritual sobre la materia y el cuerpo. El trabajo se inscribe en el proyecto de la historia de género que incluye el estudio de las masculinidades.
THE H10N3 INFLUENZA STRAIN: A CANDIDATE FOR THE NEXT PANDEMIC?
Authors: Monawwer Syed Abdullah , Taufiq Haris , Muneeb Muhammed , Meah Khubaib Muhammad Shamim
Published: April 2022

The COVID-19 pandemic has devastated the world's demographics. As of December 2021, the virus has claimed over 5.3 million lives and has caused high morbidity across the globe. As the recently developed vaccines provided some hope of relief, a recent development is a cause of further distress as the first human case of the rare avian influenza A (H10N3) virus was detected in a 41-year-old man from the Zhenjiang province, China. The man has since recovered and has been discharged. The avian influenza A(H10N3) virus belongs to the Orthomyxoviridae family which mainly causes respiratory symptoms with primary viral pneumonia being the main cause of mortality. Genetic analysis on the patient’s bronchoalveolar lavage confirmed the presence of the H10N3 subtype and that the virus had gone under reassortment with multiple other avian strains. Although the virus is deemed incapable of human-to-human spread, further mutations in its genome may allow it to do so. This would lead to a large-scale outbreak and reap calamitous outcomes, causing high morbidity and mortality. Moreover, this would further disrupt daily activities, spiking mental health issues. As the global economy tries to recover from the destitution caused by Covid-19, another pandemic would cripple the already struggling businesses and cause a further loss of livelihood. This calls for increased surveillance in poultry and an upscale in research for vaccine development as well as a contingency plan in case a large-scale outbreak was to occur.
GENDER DIFFERENCE IN AWARENESS AND BEHAVIOURS OF MEDICAL AND DENTAL STUDENTS ABOUT CORONA VIRUS DISEASE (COVID-19) IN PAKISTAN
Authors: Lodhi Fahad Saqib , Rabbani Unaib , Khan Adeel Ahmed , Abrar Saidul , Laraib Ayesha , Irum Saadia
Published: April 2022

Background: Medical and dental students are the future of health workforce and a potential volunteer pool in the COVID-19 crises. This study aimed to assess the level and gender differences in the awareness, attitude and behaviours of medical and dentals students about COVID-19 in Pakistan. Methods: An online cross-sectional survey was conducted among medical and dental undergraduate students in Khyber Pakhtunkhwa province. Data was collected using a structured questionnaire having four sections: socio-demographics, knowledge, attitude and practices. Results: A total of 1770 medical and dental students participated and completed the questionnaire. About 1239 (70%) of the respondents were female and 1526 (87%) were MBBS students. We found that 1685 (95%) of the students had adequate knowledge. Majority, 1565 (89%) of the students was concerned about COVID-19 and 1480 (84%) believed that disease will ultimately be controlled. Only about 1129 (64%) of the participants in our study had adequate practices. Male gender was associated with higher risk of inadequate practices. Conclusion: There were good knowledge and attitudes about COVID-19 among medical and dental students. However, one third of the participants did not have adequate practices and female had better practices than male students. This gap in the knowledge and practice calls for urgent interventions to improve practices.
UNUSUAL INITIAL PRESENTATION OF PRIMARY ANTIPHOSPHOLIPID SYNDROME AS POSTPARTUM SYMMETRICAL PERIPHERAL GANGRENE
Authors: Khan Marium Marufia , Shahid Sana , Zafar Amara , Khan Nudrat Naz , Bhatty Shaheen
Published: April 2022

Antiphospholipid syndrome (APS) is an acquired prothrombic state with recurring thromboembolic and obstetric complications in the presence of antiphospholipid antibodies. Isolated skin manifestation especially symmetrical peripheral gangrene (SPG) in postpartum phase is reported rarely. To highlight this unusual presentation of APS with SPG we present a case of young female who developed SPG on her third postpartum day. Postpartum period runs a high risk of sepsis but development of such extensive and rapid ischemic changes in APS is seen uncommonly.
ARTHRALGIA IN A YOUNG PATIENT: PRESENTATION OF LOFGREN SYNDROME
Authors: Ali Junaid , Zeb Junaid , Shah Maleeha , Jamil Shahid
Published: April 2022

1Department of Medicine, 2Department of Orthopedics, Khyber Teaching Hospital, Peshawar-Pakistan
Lofgren syndrome an acute form of sarcoidosis constitutes erythema nodosum, bilateral hilar adenopathy and arthralgia or arthritis. Here we present a case of a 28 years old young male patient who is a shopkeeper and farmer by profession admitted to inpatient department with chief complaints of bilateral painful nodules on his shins, low grade fever and pain multiple joints on both sides of the body. Suspicion of the Lofgren syndrome was made upon initial evaluation and patient was admitted to inpatient care facility for necessary comprehensive workup. Radiological findings were consistent with bilateral hilar lymphadenopathy and patient was diagnosed with Lofgren syndrome. Patient was started on non-steroidal inflammatory drugs (NSAIDs) with close observation for improvement in response to treatment. After one weak of treatment in hospital, patient was discharged home when his symptoms started to resolve.
VAAFT (VIDEO ASSISTED ANAL FISTULA TREATMENT); NOVEL TECHNIQUE FOR THE TREATMENT OF ANAL FISTULA
Authors: Asim Khan Muhammad , Ullah Rafat , Kamran Haider , Zarin Mohammad
Published: April 2022

Background: VAAFT (Video Assisted Anal Fistula Treatment) is a novel minimally invasive technique for treatment of Fistula in Ano, which claims superior results compared to current treatment modalities due to the added advantage of real time visualization of the fistula tract and internal opening of the fistula using a fistuloscope. Methods: This is cross sectional study in which 84 patients were selected using consecutive non probability sampling. They underwent VAAFT and were followed to assess for primary healing and continence at 6 weeks, and recurrence at 1 year. Results: In this study, 97.6% participants were male. Mean operating time was 24 minutes while Mean VAS was 3.7±2.2. Healing was observed in 83.2% whereas recurrence was found in 10% at one year. All of the patients had normal sphincteric function post operatively. Conclusion: The results of our study affirm other studies in terms of cure rates, sphincter preservation and fistula recurrence. Studies with larger sample size and long term follow up are required to establish the superiority of VAAFT over the other currently available treatment options for anal fistula.
COMPARISON OF TWO DEFINITIONS (p-RIFLE AND KDIGO) FOR PREVALENCE OF ACUTE KIDNEY INJURY AND IN HOSPITAL MORTALITY IN A PAEDIATRIC INTENSIVE CARE UNIT OF PAKISTAN
Authors: Usman Parveen , Qaisar Habib , Haque Anwar ul , Abbas Qalab
Published: April 2022

Background: To compare the Paediatric RIFLE (p-RIFLE) and Kidney Disease Improving Global Outcomes (KDIGO) definitions of acute kidney injury (AKI) for frequency of (AKI) and in-hospital mortality in critically ill children. Methods: Retrospective review of medical records of all patients (aged 1 month – 16 years) admitted in Paediatric Intensive Care Unit from January 2015–December 2016, with length of stay >48 hours, was done. Patients with chronic kidney disease were excluded. Receiver operating characteristic (ROC) curves were used to evaluate the performance of the p-RIFLE and KDIGO criteria to predict the AKI related mortality. Logistic regression analysis was done to determine the association of different variables with mortality in AKI patient based on p-RIFLE, KDIGO. A p-value of <0.05 was considered significant. Results: Out of total 823 patients admitted during the study period, 562 patients were included in the study. Median age was 2 years (Interquartile range 8 years). AKI frequency according to p-RIFLE and KDIGO were 391 (70%), and 372 (66%) respectively. Overall, 106/823 (12.8%) children died during study period, 78 (19.9%) in AKI by p-RIFLE and 76 (20.4%) in AKI by KDIGO died. The area-under- curve for in-hospital mortality for p-RIFLE and KDIGO criteria were 0.525 (p=0.427), and 0.534 (p=0.276), respectively. Conclusion: P-RIFLE is more sensitive compared to KDIGO in diagnosing AKI in critically ill children; identifying a greater number of moderate staged AKI cases. Greater AKI severity is associated with higher mortality in critically ill children.
Analysis of the effect of the covid-19 pandemic on maternal care at the Acobamba hospital - Huancavelica, Perú 2020
Authors: Cardenas-Pineda Lina , Cusi Yaquelina Suñiga , Lopez Ada Larico , Gonzalez Antonio Picoy , Leyva-Yataco Leonardo , Lacho-Gutierrez Pavel , Mantari Alicia Alva
Published: April 2022

o determine the effect of the COVID-19 pandemic on maternal care in the Hospital of Acobamba - Huancavelica, 2020. Methodology: The research was observational, retrospective, and longitudinal with the population being consisted of 27 and 29 pregnant women, 53 and 60 deliveries, 27 and 29 postpartum women during the second trimester of the year 2019 and 2020, respectively. Results: Analysis with pandemic (2020) and without pandemic (2019), pregnant women attended 86.6% and 114.8%; pregnant women controlled (6APN) 62.1% and 88.9%; with full laboratory set 44.8% and 88.9%. During the pandemic, each pregnant woman received 1.8 visits and 3.9 telephone follow-ups, compared to 0.9 visits and no telephone follow-ups. During the pandemic, delivery care reached 236.7% since deliveries from other jurisdictions and by returning migrants were attended and there were 5% of home deliveries, while during the non-pandemic 86.8% and no home deliveries were attended. The first puerperal check-up reached 162.1%, 137.9% compared to 66.7% and 59.3%; visits to puerperal women reached 117.2% compared to 74.1% non-pandemic. The causes of the main emergencies were abortion (22.2%), hypertensive disease of pregnancy (15.3%), fetal distress (8.3%) and hemorrhage during pregnancy (8.3%). Conclusion: COVID-19 pandemic reduced APN, increased delivery and puerperium care, strengthened follow-up of pregnant and puerperal women, increased emergencies and reduced cases of postpartum hemorrhage. The health team responded to the situation with commitment and responsibility). Keywords: COVID - 19, Maternal care, Women health, Pandemic, Pre-natal.
Characterization And Antimicrobial Property Of Nickel Nanoparticle Synthesized Using Leaves Extract Of Launaea Taraxacifolia (African Lettuce)
Authors: Adekanmi Abideen, A. , Akinkunmi Owolabi, Oluwafemi , Ajewole Ifeoluwa, David , Kehinde Lawal, Ibraheem , Micheal Oyero, Gbenga , Young Akinlade Ridwan
Published: April 2022

As an alternative to previously used, costly, and hazardous chemicals, nickel nanoparticles (NiNPs) were manufactured utilizing locally accessible biodiversity plants. The aim of this work is to examine the antibacterial capabilities of nickel nanoparticles generated from Launaea taraxacifolia (African lettuce or wild lettuce). Leaves of African lettuce (Launaea taraxacifolia) were gathered in Esa-Oke, Nigeria's Osun State. In the morning, a sterile container was used to collect urine. The urine sample was evaluated and cultured using C.L.E.D. medium, MacConkey agar, and Sabouraud dextrose agar. Traditional methods including as morphology, gram staining, biochemical analysis, and sugar fermentation were used to identify the isolates. African lettuce was cut into small pieces after being washed in distilled water. A nickel nanoparticle was made using a conventional approach from African lettuce leaf extract. Transmission Electron Microscopy was used to characterize the nanoparticle, which was done via a drop coating method (SEM). The isolates were identified as Klebsiella sp. and Micrococcus sp. using Bergy's manual for bacterial identification. Nickel nanoparticles and African lettuce leaf extract were tested for antibacterial activities against Klebsiella sp. and Micrococcus sp. utilizing agar well diffusion methods. The comprehensive Transmission Electron Microscopy (TEM) photos clearly demonstrate that nickel nanoparticles have identical morphologies and sizes, according to the findings of the study of generated nanoparticles. Nickel nanoparticles with a diameter distribution of 10–20 nanometers are visible in the TEM images. The zones of inhibition for nickel nanoparticles against tested bacterial isolates (Klebsiella sp and Micrococcus sp) were 2 mm and 0 mm, respectively, however the zones of inhibition for Launaea taraxacifolia extract were substantial (5 mm and 7 mm). Plant extracts (Launaea taraxacifolia) showed good inhibition against bacteria when compared to the stated zone of inhibition with generated nickel nanoparticles (Micrococcus sp and Klebisiella sp)
Classroom Crisis in Higher Institutions of Learning under the New Normal: Administrative Coping Strategies
Authors: Musa Abubakar , Kwashabawa Bala Bakwai
Published: April 2022

Educational institutions globally have suffered setback as a result of the COVID 19 pandemic which led to closure of schools for almost a year. This paper examined classroom crisis in higher institutions of learning under the new normal: administrative coping strategies. Secondary data were used to support the points raised in the paper. The data were sourced from print materials and online publications by recognized institutions and individual authors. The paper identified difficulty in the coverage of syllabus, poor knowledge of information and communication technology (ICT), cancelations of conferences, poor network service, inadequate ICT facilities, expensive data coupled with economic hardship, difficulty in social distance observation, pressure from school management, high rate of drop out and increased in workload as challenges facing higher educational institutions under the new normal. It was also identified that online academic activities, blended learning approach, arrangement of extra classes, running of parallel session and adjustment of academic calendar are some of the administrative strategies employed by schools. It was suggested that schools should provide ICT training for both staff and students, provide adequate ICT facilities, ensure stable electricity supply, amongst others.
Understanding the causes, effects, and remediation of salinity in irrigated fields: A review
Authors: Wali Saadu Umar , Gada Murtala Abubakar , Umar Kabiru Jega , Abba Aminu , Umar Abdullahi
Published: April 2022

To boost agricultural production, irrigation will turn out to be more reliant on inadequately described and virtually unmonitored sources of irrigation water supply. Amplified use of irrigation water has resulted in degradation of water and soil quality in numerous areas. The objective of this review is highlighting the causes, effects, and remediation of salinity in irrigated fields. The study analysed some major ions affecting the quality of irrigation water. Precisely, elements including boron, chloride, and nitrogen are harmful to crops. Consequently, it is imperative to detect their origin and consequences. Likewise, there is a need for understanding how they can be removed from irrigation waters. Continuous water quality analysis using chemical indices such as sodium adsorption ratio, sodium percent, residual sodium carbonate, magnesium hazard and permeability index in irrigation water analysis is recommended. The review also highlights the crop tolerance in saline conditions and tolerance limits of individual crops to salinity. Salinity should be monitored for improved irrigation scheme performance. This has necessitated the application of salinity management techniques in irrigation water.
Artificial Intelligence and Deep Learning Applications: A Review
Authors: Ramachandran G. , Kannan S.
Published: April 2022

Deep Learning, a buzz in the artificial intelligence field, is the subset of machine learning. It teaches computers to learn from examples in order to perform a task that is intuitive to humans. It is also known as a deep neural network or deep neural learning. In deep learning, neural networks have a significant role. These are a set of algorithms that we implement to identify relevant relationships in datasets, and they follow the process that imitates the human brain. Neural networks depict the behavior of the human brain and enable computer algorithms to identify trends. It also solves complex problems in the domain of machine learning, AI, and data science.Deep learning deploys artificial neural networks to recognize the hidden patterns of data in the dataset provided. These algorithms are trained over an adequate amount of time and applied to a data set.
A Comparative Study Of Different Topologies Of Transformer less AC-DC Converters
Authors: Manakkal Dr. Sobha , T Rajeenamol P , P Sundaramoothi
Published: April 2022

The need of single stage transformer less high step-down converters is increasing due to the strict current harmonic regulations in the low power applications. Many topologies are reported that have same characteristics. In this paper 6 topologies are compared each other with respect to their features and analyzed their voltage conversion ratio, number of components, intermediate bus voltage etc. This paper should serve as a convenient reference for future work in the field of power electronic transformer less single stage ac-dc converters.
CHINA PAKISTAN ECONOMIC CORRIDOR: A WIN-WIN APPROACH IN A ZERO-SUM REGIONAL ENVIRONMENT
Authors: Syed Zahir , Dr Aamer Raza
Published: April 2022

Pakistan, due to its geostrategic existence, became a fulcrum of the massive Belt and Road Initiative (BRI) through CPEC. The project is anticipated to bring socio-political and economic stability in the region. The project is supposed to revitalize the historical Silk Rout to knock down the social, political, and economic hindrance among Asia, Africa, and Europe. This revolutionary and hi-tech Win-Win enterprise is professed as “the harbinger of a new epoch of congruence and integration” (Mehmood & Sabir, 2020) for Pakistan. CPEC is intended to unlatch many commercial routes across China, South and Central Asia, the Middle east and European region. China is going to have quicker and accessible trade rout with Persian Gulf and other resourceful regions. Pakistan would have enhanced economic stability through Gawadar Port Projects, infrastructural development, economic zones, technological assistance, and other energy generating arrangements. This paper tends to discuss the rudiments of CPEC with the geopolitical and strategic reputation considering the zero-sum unipolar world. It throws light over social, political, and economic dimensions of the project with the consideration of political development and policy consistency of the region. The trade deficit and antidots through CPEC between China and Pakistan with the inclusion of other neighbouring States would be addressed. Hurdles and security constrictions regarding the corridor are highlighted and research based conceivable suggestions have proposed which the governments of both the countries ought to consider.
Keywords: BRI, CPEC, Win-Win scenario, Silk Rout, Trade Deficit, Gawadar Port Project, Persian Gulf, zero sum game. Meritime Routs
PERANCANGAN WEBSITE WISATA KAMPUNG DJAJANG (WKJ) HOMESTAY DAN PENERAPAN KONSEP EDUKATIF DAN KOMUNIKATIF BERBASIS WORDPRESS
Authors: Mochamad Harismanto  , Rudi Hartono  , Abdul Haris
Published: April 2022

Seiring perkembangan jaman dan teknologi, kini internet bukanlah hal baru bagi umat manusia. Jika selama ini dalam menyampaikan informasi masih menggunakan brosur dan pamphlet sebagai sarana, itu terkesan kurang efisien. Di era modern seperti sekarang, semua serba menggunakan teknologi, maka dengan memanfaatkan website dan media sosial dapat mempermudah penyampaian informasi ke seluruh hotel surfer (pencari penginapan/hotel) yang ada di penjuru dunia. Untuk memenuhi kebutuhan konsumen dalam hal pelayanan, penginapan Homestay WKJ memiliki admin yang khusus untuk menerima pesanan tamu. Namun masih menggunakan sistem manual. Hal ini menghambat pelayanan terhadap tamu. Untuk mengatasi masalah itu maka dibuatlah suatu aplikasi pemesanan kamar berbasis website dengan menggunakan bahasa pemrograman HTML, PHP, JavaScript dan MySql dan framework CodeIgniter (CI). Hasil yang diharapkan dari penelitian ini adalah dapat memberikan jalan alternative bagi para pelanggan yang ingin memesan kamar. Serta, memberi kemudahan dalam pengembangan administrasi di penginapan Homestay.
E-COMMERCE KERAJINAN BAMBU PADA TOKO TUMBU LESTARI DI BUMDES GINTANGAN
Authors: Suaebatul Islamiyah  , Muhamad Dedi  , Solehatin
Published: April 2022

Sekarang ini Perkembangan teknologi dan informasi  berkembang dengan sangat cepat, yang berdampak pada kemudahan dalam berbagai bidang pekerjaan salah satunya bidang penjualan. Bumdes tumbu lestari merupakan badan usaha milik desa yang di kelola di desa gintangan yang diresmikan 9 januari 2017 lalu. Sebagian besar modal nya dimiliki oleh desa dan penyertaan langsung dari ekayaan desa. Tujuan penelitian ini untuk membuat sistem informasi penjualan online Kerajinan Bambu pada Toko Tumbu Lestari di bumdes Gintangan, yang nantinya bisa membantu penyajian informasi produk dan meningkatkan penjualan untuk memasarkan produk secara online. Media online merupakan salah satu alat bantu pemasaran bagi pedagang untuk memuat informasi produk mereka agar dikenal oleh banyak orang dan mempermudah meningkatkan kegiatan usaha dalam pengolahan data. Namun di bumdes ini masih belum menggunakan metode media online sebagai pemasarannya. Perancangan website ini dibuat dengan menggunakan wordpress dan MySQL yang selanjutnya dilakukan uji coba dengan localhost dan Mozilla. Pembangunan website ini dapat membantu memberikan informasi penjualan dengan efektif. Dari hasil evaluasi di atas bisa menghasilkan sistem dengan fitur melakukan pencarian barang, pemesanan barang, dan laporan penjualan barang.
Consecuencias ecológicas de la fragmentación sobre la comunidad de mamíferos en la zona de amortiguamiento de la Reserva Nacional Tambopata
Authors: Delgado-Bernal Manuel , Merediz-Durant Carla
Published: April 2022

El objetivo fue conocer las potencialidades y limitaciones del territorio, que sirvan para definir políticas de desarrollo y ordenamiento territorial, así como a la identificación y promoción de proyectos de desarrollo. El estudio se ha elaborado a partir del análisis de la información colectada en campo con la finalidad de realizar un sondeo sobre la diversidad biológica de fauna silvestre y los problemas ambientales que la afectan. Se pudo identificar los atributos de Alto Valor Biológico y Ecológico, con los que cuenta el área de estudio al mantener poblaciones de especies importantes y representativas de la fauna silvestre de la Amazonía sur y conservar la diversidad del paisaje y la naturalidad del bosque, al mantener una gran cantidad de especies forestales que fructifican la mayor parte del año; así como de poblaciones de artrópodos (invertebrados con exoesqueleto), que son el sustento alimenticio de la fauna silvestre. La identificación de zonas para la conservación de la biodiversidad y procesos ecológicos la sustenta como un recurso de alto valor que debemos de conservar.
Evaluación de la aplicación de tecnologías de fermentación y secado de cacao (Theobroma cacao L.) tipo CCN-51 y Criollo
Authors: Gutierrez-Paredes Roy , Gonzales-Fuentes Guisela , Chávez-Pinchi Miguel
Published: April 2022

El cultivo de cacao (Theobroma cacao L.) en la región de Madre de Dios - Perú es pertinente debido a su impacto económico; no obstante, los productores desconocen tecnologías de postcosecha que aseguren calidad en los granos. Es por ello que planteamos como objetivo evaluar las tecnologías de fermentación y secado del grano de cacao tipo CCN-51 y Criollo medidos en su calidad y rendimiento, utilizando fermentadores de cajón y saco, secadores solares de madera cubiertas con mica y tendales de mantas de polipropileno. Para ello, aplicamos un modelo de bloques con arreglo factorial de 3 factores: tipo de cacao, tecnología de fermentación y tecnología de secado, con un nivel de significancia del 5%. Entre los resultados destaca que la mejor tecnología de beneficio de cacao es la fermentación en cajón de madera y secado en secadores solares de madera, concluyendo que el cacao que mejor se comporta en fermentación y secado es el cacao criollo con 80% de grado de fermentación.
Impacto ambiental de los residuos sólidos en una Universidad Amazónica Peruana
Authors: Paredes-Valverde Yolanda , Quispe-Herrera Rosel , Roque-Huamani Jhon , Quispe-Paredes Rosell Darwin
Published: April 2022

El estudio de caracterización de residuos sólidos es una herramienta que proporciona información básica los residuos sólidos, que permite diseñar técnicas en sistemas de almacenamiento, barrido, recolección, transporte y disposición. El objetivo fue realizar el estudio de impacto ambiental que producen los residuos sólidos en la Universidad Nacional Amazónica de Madre de Dios. Realizamos la recolección de datos durante los meses de junio - julio del 2019, en puntos de acopio en los pabellones A, B, clasificamos en forma manual los componentes de los residuos sólidos y pesaron para su cuantificación correspondiente; para el procedimiento sistemático y simplificado de la evaluación de los impactos ambientales de mayor significancia, desarrollamos la matriz multidimensional de Leopold. Los resultados del estudio muestran que los plásticos, papeles y restos de alimentos son los componentes mayoritarios. Concluimos que los restos de alimentos producen mayor impacto en el ambiente.
Diagnóstico económico de plantas medicinales en el distrito de Tambopata
Authors: Paredes-Valverde Yolanda , Quispe-Herrera Rosel , Quispe-Herrera Abelardo , Belisario-Ferrel José Carlos
Published: April 2022

En el distrito de Tambopata no existe institución alguna dedicada a la comercialización, solo a la investigación en plantas medicinales. Por ello, el objetivo de la investigación fue determinar el mercado de las plantas medicinales en el Distrito de Tambopata de la Región de Madre de Dios. El estudio fue tipo y nivel de investigación descriptivo, aplicamos los métodos: analítico, explicativo, estadístico y bibliográfico, la muestra estuvo constituida por 227 demandantes, 29 ofertantes y 15 instituciones. Los resultados de la investigación muestran, que los demandantes compran las plantas como alternativa para el tratamiento de una dolencia o enfermedad; los ofertantes tienen un grupo de ocho plantas que presentan mayor salida en el mercado como el caso de la “uña de gato”, donde el 86.2% ofertan el producto; para el caso de las instituciones solo el 40% de las estudiadas se encuentran involucradas al trabajo con plantas medicinales. Concluimos que la comercialización de plantas medicinales en el distrito de Tambopata es de manera informal y empírica en cuanto a su precio, cantidad demandada y cantidad ofrecida.
Actividad minera y suelos contaminados en el sector de km 100 La Pampa región Madre de Dios
Authors: Cutipa-Chávez Lastenia , Mego-Mego Virne , Cuse-Quispe Jaime , Chávez-Pinchi Miguel , Mamani-Condori Jesualdo , Galindo-Pacherres Javier , Gonzales-Bellido Janet
Published: April 2022

El objetivo de la investigación fue realizar un estudio de suelos y sus efectos de la minería en el sector 100 de la Pampa de la provincia de Tambopata, Región Madre de Dios. La investigación fue de carácter experimental, para ello, se tomaron cuatro muestras de suelos erosionados del km 100 correspondiente a la pampa además una muestra del suelo no erosionado como testigo. En laboratorio obtuvimos resultados que determinaron los parámetros físicos y químicos otros como nitrógeno, metales y otros elementos Concluimos que la textura de los suelos donde existe la actividad minera han perdido considerable cantidad de limo y arcilla, además la acidez de los suelos se ve incrementada ligeramente por dicha actividad.
La producción científica de la UNAMAD a disposición de la comunidad académica y científica
Authors: Rodríguez-Achata Liset
Published: April 2022

El Instituto de Investigación de Recursos Naturales y Medio Ambiente, creado por Ley N°27297, desde su instauración ha sentado las bases para que, dentro de la Universidad Nacional Amazónica de Madre de Dios en base a los lineamientos de la Ley Universitaria N°30220, priorice, planifique, promueva, ejecute y monitoree proyectos de investigación científica y tecnológica (Cervantes Liñán et al., 2019). Este año presentamos a la comunidad local, nacional e internacional el volumen 1 número 1 de su revista “Biodiversidad Amazónica”. La comunidad universitaria en general da reconocimiento al esfuerzo e interés que han puesto los editores y autores de los artículos que aquí se divulgan.
Modeling the default probability of Moroccan companies
Authors: LOTFI Siham , MESK Hicham
Published: April 2022

The financial crisis that has rocked the world in recent years, expressed by the bankruptcy of large international banks (Lehman Brothers in the United States for example), it has led to a questioning of the banking risk management model including credit risk. The objective of our research is to assess the probability of default of firms through a sample that includes 2030 Moroccan companies made up of SMEs and large companies. For this, we used the logistic regression technique which was appreciated in the field of finance mainly in epistemological surveys and credit scoring. This quantitative approach allowed us to measure solvency and at the same time identify healthy borrowers from defaulting borrowers through a number of financial ratios calculated from the balance sheet of the 2015-2017 financial statements.
Maximizing the performance of an organization by its supply chain
Authors: AZARKAN Zineb
Published: April 2022

Supply Chain Management (SCM) becomes so crucial and essential for organizations in order to succeed in any market, but is it always the case? Of course not! There are many examples of even large companies that failed because of wrong management of their supply chain, such as Webvan and Borders. From its conception, planning, and until integration and management, the supply chain must respect few conditions (the 3Ts that compose the effective collaboration) to insure efficiency and success.

Considering the companies with the best practice of supply chain management, such as Nokia, Procter & Gamble, and Wal-Mart, strong collaboration and relationships with partners were always the reason behind their remarkable success. Therefore, the main concern of every organization that is looking to improve its performance should not be just the necessity of integrating and managing the supply chain, but what really matters is how to apply it in the right/efficient way
Reflection on the intention to buy online for better business performance
Authors: El Bayed Sakalli Hanaa , Moumene Safae
Published: April 2022

Faced with increasingly fierce competition and more volatile customers, it is more difficult for companies to sell their products, retain customers and ultimately maximize their business performance. Hence the need to identify the factors explaining the intention to purchase online. A better understanding of these factors will allow companies to put in place the necessary adjustments and the appropriate tools in order to boost their commercial performance. The objective of this article is to highlight a set of determinants of Online purchase intentio from an exploratory qualitative study
Pengaruh Suhu dan Waktu Pemanasan terhadap Nilai HGI pada Sampel Batubara di PT. Bukit Asam Tbk
Authors: Ghony Muhammad Abdul
Published: April 2022

HGI is a laboratory measurement of the ease or difficulty of grinding or pulverizing coal. The grinding index value determines the time and effort required to grind coal to a certain fineness. This test is determined by preparing a certain grain size to be ground using a machine under standard conditions and the amount of coal being crushed is compared to the standard linearity of coal. The HGI standard values ​​that have been certified using ASTM standards are 32, 49, 65, and 95. This study consisted of variables, namely temperature and heating time, and related variables, namely HGI values. HGI data retrieval after heating minutes was carried out on coal samples with heating temperatures of 50˚C, 100˚C, 150˚C and 200˚C and heating times of 30 minutes, 60, 90 minutes and 120 minutes. The condition of the optimum HGI value was obtained at a heating temperature of 100℃ and a time of 60 minutes with an HGI value of 70.2558,. This index is very helpful in assessing the capacity of the mill used to grind coal to the required size for feed to the furnace besides HGI also affects how the coal is distributed in the lifting equipment properly.
PERANCANGAN APLIKASI INVOICE BERBASIS MOBILE STUDI KASUS UMKM
Authors: Agusti Elmo
Published: April 2022

Information technology plays an important role as a medium of information and communication in UMKM activities, one of which is the management of Angkringan stalls in  the Pamulang area, South Tangerang. Based on this research activity, it is very useful for UMKM actors, namely through this mobile based invoice application, UMKM participants can view detailed sales reports without having to record every transaction manually. Through this mobile based invoice application, UMKM participants can print invoice via a bluetooth printer whitout manual writing, and this process can help the transaction management process more efficiently.
PEMANFAATAN MODUL ARDUINO UNTUK MENINGKATKAN HASIL BELAJAR MIKROPROSESOR KELAS XI ELIN DI SMKN 4 PARIAMAN
Authors: Syaiful Muhammad
Published: April 2022

This event will be based on research by the learning outcomes of students who have not yet reached the KKM on subjects of microprocessors in the class XI ELIN SMK Negeri 4 Pariaman. One of the factors that influence student learning outcomes is low yet the availability of media trainers used as alternatives in learning. Therefore it needs to be done by applying the research module the arduino to see the results of student learning. This type of research was Quasi Experimental design with One Group Pretest-Posttest. The subject of this research is on grade XI ELIN SMK Negeri 4 Pariaman are registered on the academic year 2015/2016. In this research the methods of collecting data by using test results of learning in the form of an objective test consisting of a pretest and posttest. The data obtained were analyzed using the formula Gain Score. Based on the results of the study found that the average value of the pretest before the application of the Arduino module 64.48 and posttest average after the application of the arduino module of 76.55. Calculations using the gain score obtained on average an increase of 0.37 meaning has increased student learning results by category. Thus it can be concluded that the application of the arduino module can improve student learning results on subjects of microprocessors in the class XI ELIN SMK Negeri 4 Pariaman.
VARIASI AMPERE TERHADAP KEKUATAN TARIK PADA HASIL PENGELASAN DENGAN POSISI DOWN HAND
Authors: Zulfadly Zulfadly , Ghony Muhammad Abdul
Published: April 2022

Pengaruh yang terjadi pada hasil lasan jika penggunaan ampere tidak tepat ialah akan menimbulkan cacat las, penetrasi yang tidak maksimal, kekuatan lasan akan kalah dengan kekuatan material sehingga lasan menjadi rapuh dan mudah putus, dan terjadi lebarnya diameter pengelasan. survey data-data terkait penggunaan ampere pada pengelasan menggunakan elektroda 7018 diameter 3,2 dengan metode SMAW yang selanjutnya untuk dijadikan acuan untuk di teliti. ampere yang digunakan adalah 100 A, 110 A dan 120A Pada hasil pengelasan ini kemudian dilakukan proses pendinginan dengan media pendingin udara.. Kemudian plate dipotong menjadi beberapa bagian dengan menggunakan mesin cutting. Hasil dari pengujian tarik yang telah dilakukan, ampere yang tepat pada posisi pengelasan down hand dengan menggunakan elektroda E7018 diameter 3,2 pada material ST52-3 plate 10 milli meter yaitu ampere 110 A dengan nilai 528,428 N/mm2.
Uma avaliação comparativa entre métricas de erro em um curso introdutório de programação com Python
Authors: Araujo Luis Gustavo J. , Bittencourt Roberto A. , Chavez Christina F. G.
Published: April 2022

O feedback oferecido por mensagens de erro produzidas por compiladores e interpretadores tipicamente não é suficiente para apoiar os estudantes novatos. A inserção de feedback adicional nestas mensagens, na forma de mensagens de erro melhoradas, pode ser uma solução para melhor apoiar os estudantes novatos na aprendizagem de programação. No entanto, o oferecimento deste feedback adicional necessita de avaliação acerca da sua eficácia. Para esta avaliação, diversas técnicas são utilizadas, desde abordagens manuais a automatizadas, como as métricas de erro dos estudantes. Da literatura, destacamos as métricas Error Quotient (EQ), Watwin Algorithm e Repeated Error Density (RED). Apesar da existência destas métricas, questões relacionadas à avaliação da eficácia das mensagens permanecem em aberto. Neste artigo, objetivamos comparar as métricas existentes e propor uma nova métrica com base nos achados. Para tal fim, foi ofertado um curso introdutório de Python no ambiente PEEF. Por meio dos dados obtidos no ambiente, as métricas foram mensuradas para todos os projetos. Como resultado, ratificamos a dependência de contexto das métricas EQ e Watwin, além da adequação de RED para abordagens de programação introdutória com Python. Entretanto, destacamos algumas limitações desta última e propomos uma nova métrica, RECurrent Error Density (REC), visando melhor responder ao questionamento sobre o impacto das mensagens melhoradas na aprendizagem dos estudantes novatos. Os resultados demonstram que REC consegue mensurar erros em 43,3% dos projetos dos estudantes, atribuindo avaliação a 30,9% de projetos a mais que a métrica RED. Estes resultados demonstram que o fenômeno de recorrência de erro ocorre e não é considerado adequadamente pelas métricas apresentadas.
Panorama Sobre Iniciativas para Promover o Pensamento Computacional no Ensino Superior Brasileiro
Authors: Silva Iago Sinésio Ferris da , Araújo Júnior José Daniel , Pontual Falcão Taciana
Published: April 2022

A consolidação do pensamento computacional (PC) como habilidade fundamental para todos tem sido discutida desde 2006. De lá pra cá, houve um crescimento considerável de iniciativas para a inserção do PC em diversos contextos. No contexto do ensino superior, em especial, o PC ainda é pouco investigado, embora existam documentos oficiais, como proposto pelo CNE/MEC em 2019, que preveem o desenvolvimento de habilidades relacionadas ao PC no currículo das licenciaturas. Partindo desse pressuposto, esta pesquisa objetiva apresentar uma visão geral sobre iniciativas para promover o PC no ensino superior brasileiro. Para isso, foi utilizado um mapeamento sistemático tendo como fonte de dados os anais dos principais eventos de educação em computação e informática na educação no Brasil. No período de 2006 a 2021, foram identificados 10 estudos de PC no ensino superior, com intervenções predominantemente desenvolvidas em cursos de graduação na área de computação. O objetivo mais comum é desenvolver habilidades de PC, e com destaque para intervenções e ferramentas relacionadas a programação, o que é coerente também com a identificação do pilar de pensamento algorítmico como o mais frequentemente abordado, e o enfoque cognitivo do PC como dominante. Há um equilíbrio entre atividades plugadas e desplugadas e as avaliações basearam-se em instrumentos como pré e pós-testes, questionários e entrevistas.
Pensamento Computacional na Oficina ‘Ginástica Cerebral’ para Pessoas Idosas
Authors: Tavares Tainã Ellwanger , da Cruz Marcia Kniphoff , Marques Samanta Ghisleni
Published: April 2022

A expectativa de vida brasileira está aumentando e o público idoso tem demonstrado interesse em manter-se mentalmente ativo. Para contribuir, foi desenvolvida a oficina ‘Ginástica Cerebral’ remota para pessoas idosas. A oficina trabalhou com a solução de desafios, através dos pilares do Pensamento Computacional (PC). A experiência relatada foi avaliada com questionário de satisfação baseado na escala de Likert. Os principais resultados do questionário indicam que 63,2% “gostariam muito” de continuar resolvendo atividades de PC e 36,8% “gostariam”; 84,2% acreditam que resolver atividades com os passos do PC causam “muito impacto” positivo na agilidade de pensamento e 15,8% consideram que causa “algum impacto”; 63,2% afirmam ter “gostado muito” e 36,8% ter “gostado”. Contudo 57,9% dos participantes nunca antes ouviram falar sobre PC. Os idosos demonstraram muito interesse e dinamismo na resolução dos desafios, confirmando que habilidades do PC podem ser evidenciadas em todas as idades.
Uso de um Espaço de Arte e Cultura, como Metáfora de Interação, para Estudo de Aspectos de IHC
Authors: Furtado Elizabeth Sucupira
Published: April 2022

Neste artigo, o espaço Arte e Cultura (A&C) é considerado uma metáfora de interação para o estudo de aspectos da Interação Humano-Computador (IHC), onde a experiência do usuário acontece no espaço e usando o design desse espaço. O design tecnológico é geralmente o único objeto de estudo para aprender conceitos de IHC. Nesse caso, apenas as tecnologias disponíveis em um espaço de A&C seriam estudadas e não todo o espaço, como aqui proposto. Este relato de experiência mostra como é possível ensinar IHC de forma “desplugada”. Essa ideia vai na direção do que Don Norman espera que os computadores sejam para os usuários: invisíveis. Esta pesquisa mostrou que o espaço cultural foi considerado um local para favorecer o desenvolvimento de competências educacionais desejadas. Mostrou também que a metodologia pode ser replicável em outro contexto diferente.
Functionality-Based Mobile Application Recommendation System with Security and Privacy Awareness
Authors: Rocha Thiago , Souto Eduardo , El-Khatib Khalil
Published: April 2022

In this thesis, we propose a functionality-aware system to evaluate and recommend mobile applications with security and privacy awareness. The proposed system has a security layer that evaluates an application and classifies it as being malign or benign. In this way, only applications classified as benign are considered for the functionality-aware recommendation. Also, we employ a technique, called Logical Predicate Mapping (LPM), which allows users to understand the permissions and API calls requested by the app, as well as privacy risks. This information is grouped with other metrics retrieved such as popularity, usability and privacy and shown to users. This way they can decide what to do and understand what can happen.
System Identification Attacks, Model-based Offensives and Countermeasures in Networked Control Systems
Authors: Sá Alan Oliveira de , Carmo Luiz F. R. da C. , Machado Raphael C. S.
Published: April 2022

Sistemas de Controle em Rede, ou Networked Control Systems (NCS), são amplamente utilizados na Indústria 4.0 e no controle de infraestruturas críticas. No entanto, ao mesmo tempo em que oferecem diversas vantagens, os NCSs são propensos a ataques cibernéticos. Este trabalho investiga novas classes de ameaças em NCSs (ataques de Identificação de Sistemas e ofensivas furtivas/baseadas em modelos) e propõe novas contramedidas para mitigá-las. Os resultados indicam que o estudo dos novos ataques apresentados neste trabalho e as contramedidas aqui propostas contribuem para a segurança cibernética dos NCSs.
An Exploratory Study of Biometrics using Trajectory Images of Eye Movements collected by Natural Image as Stimuli
Authors: Brasil Antonio Ricardo Alexandre , Pinto Luiz Alberto , Komati Karin Satie
Published: April 2022

O estudo dos movimentos oculares como biometria começou em 2004 e seu processo típico é capturar movimentos usando imagens de estímulo, tratando esses dados como sinais no tempo seguido de classificação. Este trabalho propõe dois diferenciais, um é o uso do banco de dados DOVES de movimentos oculares coletados usando imagens naturais como estímulo e o outro é o tratamento de movimentos oculares como imagens. São geradas imagens das trajetórias de movimentos oculares, que são a entrada de dois tipos de arquiteturas: uma que usa as técnicas HOG e LBP para extrair características, seguida pelos classificadores SVM, MLP e RF e outra que usa o poder do Convolucional Rede Neural (CNN) VGG-19 e ResNet-50 para a identificação de pessoas. A maior precisão foi de 39,59% com a arquitetura ResNet-50, um resultado comparável ao melhor da competição EMVIC 2014, que usou imagens de rosto como estímulo, de 39,63%.