bluuebunny/crossref_metadata_2025 huggingface dataset:
PENGARUH LATIHAN PLYOMETRIC DOUBLE LEG SPEED HOP DAN SINGLE LEG BOUNDING TERHADAP KECEPATAN TENDANGAN SABIT PADA ATLET PUTRA PERGURUAN PENCAK SILAT AL-HIKMAH AR-RAHIIM KABUPATEN DELI SERDANG
Authors: Hayati Rizka , Endriani Dewi
Published: December 2021

Tujuan penelitian yang ingin dicapai dalam penelitian ini adalah untuk mengetahui pengaruh latihan plyometric double leg speed hop dan single leg bounding terhadap kecepatan tendangan sabit pada atlet putra perguruan al-hikmah ar-rahiim kabupaten deli serdang tahun 2021. Metode penelitian yang digunakan adalah quasi eksperimen. Sampel yang digunakan dalam penelitian ini adalah atlet perguruan al-hikmah ar-rahiim sebanyak 10 orang. Dari analisis hasil data yang telah dilakukan dapat disimpulkan terdapat pengaruh yang signifikan bahwa melalui latihan plyometric double leg speed hop dan single leg bounding dapat meningkatkan kecepatan tendangan sabit pada atlet putra perguruan pencak silat al-hikmah ar-rahiim kabupaten deli serdang, dengan analisis hipotesis dari data pre-test dan post-test hasil kecepatan tendangan sabit diperoleh thitung sebesar = 7,05 serta dengan nilai ttabel sebesar = 1,83 dengan α = 0,05 (thitung > ttabel) atau (7,05 > 1,83). Hal ini berarti Ho ditolak Ha diterima.
PENGEMBANGAN ALAT BANTU LATIHAN UNTUK PENJAGA GAWANG OLAHRAGA FUTSAL
Authors: Syahni Raja , Azandi Filli , Nur Mawardi
Published: December 2021

Penelitian ini bertujuan untuk mengembangkan alat bantu latihan untuk penjaga gawang olahraga futsal. Metode penelitian yang digunakan pada penelitian ini adalah penelitian pengembangan. Subjek penelitian ini yaitu atlet club Hero FC, Saudara FC, dan Garuda FC berjumlah 30 orang diperoleh dengan teknik random sampling. Hasil dari penelitian menunjukkan bahwasannya alat bantu latihan untuk penjaga gawang olahraga futsal ini sudah dalam kategori valid dan layak untuk digunakan. Pengembangan alat bantu ini berupa beban berbentuk blok beban dengan dimensi 8x4x4 cm berjumlah 4 buah dan memiliki berat 300 gram setiap blok beban. Belok beban ini dimasukkan pada kantung beban yang akan digunakan oleh atlet. Penggunaan beban pada lengan membuat efektifitas latihan penjaga gawang menjadi meningkat karena dapat berlatih fisik sekaligus teknik dalam sekali lathan. Penggunaan alat ini dapat meningkatkan kekuatan lengan penjaga gawang untuk menghalau bola masuk kedalam gawang. Penggunaan alat ini praktis dan mudah sehingga sesuai dengan program latihan karena beban pada alat dapat dikurangi sesuai kebutuhan latihan setiap atlet.
PENGEMBANGAN LEMBAR KERJA PESERA DIDIK BERBASIS EMANCIPATORY QUESTION UNTUK SISWA KELAS XI SMA
Authors: Nadila Nadila , Nasution Abd Haris , Simanjuntak Yuni Artha
Published: December 2021

Penelitian ini bertujuan untuk mengembangkan produk berupa lembar kerja peserta didik berbasis emancipatory question untuk siswa kelas XI SMA berdasarkan penilaian ahli materi, ahli media dan ahli evaluasi pembelajaran sejarah serta penilaian guru juga siswa. Dalam pelaksanaannya penelitian ini menggunakan metode penelitian dan pengembangan (R&D) model Borg and Gall. Prosedur pengembangan yang digunakan pada penelitian ini meliputi 9 (sembilan) tahapan yaitu : (1) tahap potensi dan masalah, (2) pengumpulan data, (3) desain produk, (4) validasi desain, (5) revisi desain, (6) uji coba produk, (7) revisi produk, (8) uji coba pemakaian, dan (9) revisi produk. Subjek dalam penelitian ini terdiri dari 3 (tiga) siswa kelas XI MIA2 untuk uji coba kelompok kecil, 6 (enam) siswa kelas XI MIA1 untuk uji coba kelompok sedang, dan 30 siswa kelas XI IIS1 untuk uji coba kelompok besar di SMA Swasta Cerdas Murni. Metode yang digunakan untuk menganalisis data adalah dengan teknik deskriptif kualitatif yang diungkapkan dalam distribusi skor dan kategori skala penilaian. Hasil penelitian dan pengembangan ini menunjukkan bahwa produk yang dikembangkan berupa lembar kerja peserta didik memenuhi validasi oleh ahli materi sejarah mencapai 84,6% dengan kategori sangat valid, ahli media pembelajaran sejarah mencapai 90% dengan kategori sangat valid, ahli evaluasi pembelajaran sejarah mencapai 90% dengan kategori sangat valid, oleh guru pelajaran sejarah mencapai 90% dengan kategori sangat valid dan melihat respon siswa pada uji coba produk (kelompok besar) mencapai 89 dengan kategori sangat valid/sangat layak diguankan. Implikasi dari hasil penelitian ini adalah diperoleh kelayakan lembar kerja peserta didik berbasis emancipatory question untuk digunakan sebagai alat evaluasi pembelajaran sejarah.
MAPPING POLITICAL THEORY USING BIBLIOMETRIC ANALYSIS
Authors: Syaifuddin Muhammad , Suswanta Suswanta , Misran Misran , Abd. Rasyid Syamsul Bahri
Published: December 2021

Politics is a discipline of science that is part of social science. What distinguishes political science from other social sciences is the object studied. The development of research on the theory of political science and politics becomes a question in this paper. Topic mapping and topic classification based on keywords, countries, and themes discussed were the main focus of this research, including visual density based on keywords, showing the level of saturation political science theory. In this study, the data used were data that had been downloaded from the Scopus database with several limitations to limit and be more specific to the results of the discussion. After the documents to be reviewed and analyzed are bibliographical using the VOSViewer and NVivo 12 Plus software, the data is exported .CSV and .RIS formats. This study aims to provide insights into subsequent research on the theory of political science
PERAN DAN SINERGITAS ANTAR AKTOR BADAN USAHA MILIK DESA (BUMDES) TIRTA MANDIRI, DESA PONGGOK, KABUPATEN KLATEN DALAM PERSPEKTIF GOVERNANCE
Authors: Putri Nastasya Aisya , Zetra Aidinil , Putera Roni Ekha
Published: December 2021

Salah satu nawacita Jokowi dan Jusuf Kalla dalam membangun Indonesia adalah membangun Indonesia dari pinggiran dengan memperkuat daerah dan desa. Tujuannya adalah memajukan perekonomian masyarakat desa dan mengatasi kesenjangan pembangunan nasional, yang dapat diwujudkan melalui Badan Usaha Milik Desa. Penelitian ini bertujuan untuk melihat bagaimana peran aktor dan sinergitas aktor dalam membentuk dan menjalankan BUMDes Tirta Mandiri. Penelitian ini menggunakan metode penelitian kualitatif dengan tipe study kasus, agar dapat memberikan pemahaman yang lebih mendalam tentang makna (arti subjek dan penafsiran) dan konteks tingkah laku serta proses yang terjadi pada faktor-faktor yang berkaitan dengan tingkah laku tersebut dan juga mengungkapkan proses kejadian secara mendetail untuk mengetahui peran aktor dan sinergitas ketiga aktor dalam menjalankan BUMDes Tirta Mandiri. Informan berasal dari aktor yang ada di BUMDes Tirta Mandiri. Untuk menguji keabsahan data yang didapatkan dilapangan dilakukan dengan teknik triangulasi sumber. Hasil dari penelitian ini menunjukkan bahwa hubungan antar aktor di BUMDes Tirta Mandiri saling berhubungan dan tidak bisa dipisahkan karena masyarakat sebagai pengguna sekaligus sebagai pengawas dan pemilik modal di BUMDes Tirta Mandiri. Selain itu, aktor-aktor dalam menjalankan BUMDes Tirta Mandiri saling bersinergi sehingga BUMDes Tirta Mandiri menjadi BUMDes yang berhasil.
Pertumbuhan dan Hasil Dua Kultivar Bayam pada Tiga Sistem Budidaya Tanaman Untuk Lahan Sempit
Authors: Mubarok Syariful , Mardatillah Asyifa , Nuraini Anne
Published: December 2021

Pandemi COVID-19 menimbulkan ancaman krisis pangan di seluruh dunia, termasuk di Indonesia. Program budidaya sayuran di lahan sempit pekarangan menjadi upaya Pemerintah untuk mewujudkan ketahanan pangan dalam mengantisipasi ancaman krisis pangan pasca pandemi COVID-19. Tujuan dari penelitian ini adalah untuk mengetahui sistem budidaya hidroponik yang paling baik untuk diterapkan pada bayam Kultivar Maestro dan Mira di lahan sempit pekarangan di DKI Jakarta. Percobaan ini telah dilaksanakan pada bulan September hingga Oktober 2020 di areal pemukiman yang berlokasi di Jalan Kemanggisan Ilir X, Jakarta Barat. Penelitian menggunakan metode Rancangan Acak Kelompok yang terdiri dari dua unit percobaan masing- masing terdiri dari tiga perlakuan, yaitu sistem budidaya konvensional, hidroponik wick dan hidroponik NFT dengan enam belas ulangan. Hasil penelitian menunjukkan budidaya bayam Kultivar Maestro dan Mira pada sistem hidroponik Nutrient Film Technique (NFT) menghasilkan pertumbuhan dan hasil paling baik, ditunjukkan pada jumlah daun, diameter batang, volume akar, panjang akar, luas daun dan berat segar tanaman yang lebih baik dibandingkan sistem budidaya hidroponik wick dan konvensional.@font-face {font-family:SimSun; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-alt:宋体; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 680460288 22 0 262145 0;}@font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:0; mso-generic-font-family:roman; mso-font-pitch:variable; mso-font-signature:-536869121 1107305727 33554432 0 415 0;}@font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:-536859905 -1073732485 9 0 511 0;}@font-face {font-family:"\@SimSun"; panose-1:2 1 6 0 3 1 1 1 1 1; mso-font-charset:134; mso-generic-font-family:auto; mso-font-pitch:variable; mso-font-signature:3 680460288 22 0 262145 0;}p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:""; margin:0cm; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Calibri",sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:SimSun; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-ansi-language:EN-US; mso-fareast-language:ZH-CN;}.MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; mso-fareast-font-family:SimSun; mso-ansi-language:EN-US;}div.WordSection1 {page:WordSection1;}
Serapan nitrogen dan fosfor serta hasil jagung yang dipengaruhi oleh teknik aplikasi pupuk hayati pada Inceptisols
Authors: FITRIATIN BETTY NATALIE
Published: December 2021

Upaya meningkatkan unsur hara nitrogen dan fosfor tanah secara berkelanjutan adalah dengan pemanfaatan agen hayati bakteri penambat N dan bakteri pelarut P. Percobaan pot yang bertujuan untuk menentukan teknik aplikasi pupuk hayati dalam meningkatkan kandungan dan serapan hara N, P  serta hasil tanaman jagung pada Inceptisols Jatinangor dilaksanakan di Lahan Percobaan Laboratorium Kesuburan Tanah dan Nutrisi Tanaman Fakultas Pertanian Universitas Padjadjaran. Pupuk hayati yang digunakan merupakan konsorsium bakteri penambat N (Azotobacter chroococcum, Azospirillum sp.) dan bakteri pelarut P (Pseudomonas malei dan Bacillus subtillis)  . Percobaan menggunakan Rancangan Acak Kelompok (RAK) dengan sembilan perlakuan dan tiga ulangan. Perlakuan terdiri atas kontrol, aplikasi pupuk hayati pada benih (seed treatment) dengan dosis 500 g dan 250 g ha-1, aplikasi di tanah (soil  application) dengan dosis 50 kg dan 25 kg ha-1, dan kombinasinya. Hasil percobaan menunjukkan bahwa teknik aplikasi pada benih, pada tanah dan kombinasinya meningkatkan serapan N dan P serta hasil tanaman jagung. Perlakuan pupuk hayati pada benih  500 g ha-1  + pada tanah 50 kg ha-1 merupakan perlakuan terbaik dalam meningkatkan serapan N sebesar 51% dan serapan P hingga 90% dibandingkan kontrol. Perlakuan pada benih 250 g ha-1  + pada tanah 25 kg ha-1 merupakan perlakuan terbaik dalam meningkatkan hasil sebesar 56% (213,40 g). Teknik aplikasi pupuk hayati yang efisien dapat digunakan untuk meningkatkan produksi tanaman
Efikasi Herbisida Campuran Tienkarbazon Metil 68 g/l dan Tembotrion 345 g/l Terhadap Gulma Berdaun Lebar dan Gulma Golongan Rumput Pada Budidaya Tanaman Jagung (Zea mays L.).
Authors: Kurniadie Denny , Umiyati Uum , Ardhianty Devina Alifia
Published: December 2021

Kompetisi nutrisi akibat kehadiran gulma di area pertanaman jagung dapat menyebabkan kehilangan hasil yang signifikan pada tanaman jagung. Penggunaan campuran herbisida merupakan salah satu upaya dalam mengendalikan gulma serta menghindari pembentukan gulma yang resisten. Tujuan penelitian ini adalah mengetahui pengaruh herbisida Tienkarbazon Metil 68 g/l dan Tembotrion 345 g/l dalam mengendalikan gulma berdaun lebar dan gulma rumput pada pertanaman jagung. Penelitian dilakukan pada bulan Oktober 2020 hingga Januari 2021 di Lahan Percobaan Ciparanje, Fakultas Pertanian, Universitas Padjadjaran, Kampus Jatinangor, Kabupaten Sumedang. Tempat penelitian terletak pada ketinggian ± 752 mdpl. Penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan 7 perlakuan dan 4 ulangan. Perlakuan percobaan terdiri dari herbisida Tienkarbazon Metil 68 g/l dan Tembotrion 345 g/l dosis 150, 225, 300, 375, 450 ml/ha, penyiangan manual, dan tanpa perlakuan. Hasil penelitian yang dilakukan menunjukkan bahwa herbisida berbahan aktif Tienkarbazon Metil 68 g/l dan Tembotrion 345 g/l dimulai dari dosis 150 hingga 450 ml/ha efektif mengendalikan gulma berdaun lebar (Alternanthera sesilis, Cleome rutidosperma, Portulaca oleracea, Eleusina indica), gulma rumput (Digitaria ciliaris, Paspalum conjugatum, dan Amaranthus sp), dan gulma total hingga 6 minggu setelah aplikasi tanpa menimbulkan efek keracunan pada pertanaman jagung. Kata Kunci: Gulma, Jagung, Tienkarbazon metil 68 g/l + Tembotrion 345 g/l.
Formulasi Serum Antioksidan Kombinasi Ekstrak Buah Ceremai dan Kulit Buah Semangka
Authors: Ernawati Eneng Elda , Farida Yunahara , Taurhesia Shelly
Published: December 2021

Ceremai (Phyllantus acidus) mengandung kaemferol, kuarcetin, mirisetin, pylantusol A, pylantusol B, asam sinamat, asam sitrat, asam ascorbat, asam galat, dan asam malat, sedangkan kulit buah semangka (Citrullus lanatus) mengandung retinol, tiamin, riboflavin, niacin, piridoksin, dan asam askorbat. Keduanya mengandung senyawa yang memiliki aktivitas antioksidan. Tujuan penelitian ini adalah membuat formula serum dari kombinasi ekstrak buah ceremai dan kulit buah semangka yang stabil dan tidak mengiritasi serta menguji aktivitas antioksidannya. Buah ceremai dan kulit buah semangka dimaserasi dengan etanol 70%, pelarut diuapkan dengan evaporator. Masing-masing ekstrak pekat buah ceremai dan kulit buah semangka diuji aktivitas antioksidan dengan metode DPPH. Ekstrak buah ceremai (EBC) dan kulit buah semangka (EKBS) dikombinasi ratio 1:1; 2:1 dan 1:2 dan dikembangkan formula serum berdasarkan hasil kombinasi dengan aktivitas antioksidan terbaik. Ratio EBC dan EKBS (2:1) memberikan nilai IC50 terbaik yaitu sebesar 73,775 ppm. Serum F1 mengandung 0.76 g EBC dan 0.5 g EKBS sedangkan F2 adalah dua kali dari F1. Aktivitas antioksidan serum F2 memilki aktivitas terbaik dibandingkan serum F1 dengan nilai IC50 sebesar 8,777% tidak berbeda jauh dengan kontrol positif yaitu produk serum yang telah beredar di pasar yang memiliki nilai IC50 6,342%. Formula serum F1 dan F2 berwarna coklat transparan, dengan aroma khas, pH serum F1dan F2 belum memenuhi standar SNI masing-masing sebesar 3,9 dan 3,7. Kedua formula serum memiliki kestabilan penyimpanan selama 3 bulan pada suhu 25oC dan 4o C. Serum F2  menunjukkan adanya iritasi ringan pada kulit kelinci hal ini dipengaruhi oleh pH serum yang asam.
Clasificación Automática de Sujetos con Deterioro Cognitivo Leve mediante la Caracterización Fractal 3D en Imágenes Cerebrales de Resonancia Magnética
Authors:   , Solis-Poot J.
Published: December 2021

Sixty brain volumes were analyzed from separate magnetic resonance images in two populations: healthy control subjects and subjects with mild cognitive impairment. For each element, the Box Counting algorithm was applied to obtain the characterization of the 3D Fractal Dimension that it presented. In addition, other morphological indices of volume, discrete compactness and surrounding area were added. Finally, a classification strategy is implemented using the Gaussian Process with a radial-based Kernel to compare the correct discrimination in the populations studied. The classifier model after the validation process gave a 60% success rate for the fractal dimension and for the morphological indices. The highest hit rate was when both metrics were combined with 80%. With these results, it is believed that the fractal index could become a biomarker for the prediagnosis of Alzheimer's disease, although for this, more studies are needed in the future.
Comparación de Técnicas de Procesamiento de Video en Diferentes Espacios de Color para la Estimación de la Frecuencia Cardíaca
Authors:   , González Uranga D.
Published: December 2021

Este estudio tiene como objetivo comparar diferentes técnicas de análisis para determinar cuál de ellas proporciona mejores resultados en la estimación de la frecuencia cardíaca a través del procesamiento de video. Las técnicas, en general, consistieron en la extracción de señales de variación de intensidad de color a lo largo del video sobre una región de interés (ROI) del rostro, para luego determinar la frecuencia dominante de estas señales dentro de un posible rango de frecuencias. Se evaluaron tres ROI para averiguar qué región proporciona más información sobre la actividad cardíaca: la frente, la región cigomática y el área de la cara que va desde la parte inferior de los ojos hasta el mentón (área poligonal). Por otro lado, este proyecto también busca determinar cuál de los siguientes espacios de color permite obtener mejores resultados: RGB, YUV, HSI, HSV y CMY. El mejor resultado se obtuvo cuando se aplicó la Transformada de Fourier a la señal extraída del canal verde (del espacio de color RGB) de las imágenes de video, con un error cuadrático medio de 1,5 latidos por minuto y un coeficiente de correlación de Pearson de 0,993.
Análisis de Textura y Aprendizaje Computacional a partir de Microfotografía Chagásica
Authors:   , Rosado Sánchez E. J.
Published: December 2021

El Trypanosoma cruzi es agente causal de la enfermedad de Chagas en América Latina. El análisis de presencia de nidos del parásito en muestras histopatológicas por microfotografía es requerido para determinar el daño en tejido cardíaco y que provoca miocardiopatía crónica. En este trabajo se analizó el uso de técnicas de aprendizaje computacional (redes neuronales convolucionales) en la detección de nidos de amastigotes en músculo cardíaco y la extracción de descriptores de textura de estos nidos para caracterizar y relacionar estos descriptores con la evolución del daño histológico durante la enfermedad de Chagas. Se utilizó un conjunto de microfotografías de modelo murino en etapa aguda: sujetos sanos y sujetos infectados por Trypanosoma cruzi. Para la detección automática de nidos se utilizó una red neuronal convolucional U-Net, donde validando respecto a regiones Gold Standard, esta presentó valores de AUC-ROC entre 0.96-0.97, y se obtuvieron valores de 0.81-0.88 y 0.70-0.78 para los índices de DICE y Jaccard, respectivamente. Se extrajeron características de textura para cada región detectada, utilizando Energía, Homogeneidad, Entropía y Contraste para caracterizar la textura de nidos y su relación temporal la evolución de la fase aguda de la enfermedad. El método desarrollado puede eficientizar la detección de nidos y ser una herramienta de apoyo en el análisis de imágenes histológicas.
Algoritmo de Descomposición Ciega Basado en el Modelo de Mezcla Multi-Lineal
Authors:   , Mendoza Chavarría J. N.
Published: December 2021

Spectral unmixing has proven to be a great tool for the analysis of hyperspectral data, with linear mixing models (LMMs) being the most used in the literature. Nevertheless, due to the limitations of the LMMs to accurately describe the multiple light scattering effects in multi and hyperspectral imaging, new mixing models have emerged to describe nonlinear interactions. In this paper, we propose a new nonlinear unmixing algorithm based on a multilinear mixture model called Non-linear Extended Blind Endmember and Abundance Extraction (NEBEAE), which is based on a linear unmixing method established in the literature. The results of this study show that proposed method decreases the estimation errors of the spectral signatures and abundance maps, as well as the execution time with respect the state of the art methods.
Diseño y control de una cabina automatizada para la captura de imágenes de miembro inferior residual transtibial
Authors:   , López Pérez M. A.
Published: December 2021

This paper presents the design of an automated cabin for thermal image capture. The device aims to improve precision during the capture and processing of the image in an isolated space. The thermographic pictures are used in the analysis of the residual human limb for transtibial amputee subjects. This study could serve as a non-invasive method seeking a correlation between the quality of the socket and the thermal activity on the amputee stump. The proposed cabin provides a standard process to acquire thermal images of the regions of interest from the participant stump reducing human errors, the variance between samples, and provides an isolated workspace to reduce environmental noise. The methodology includes the computed assisted design of all mechanical elements, the electronic instrumentation for the automation, the interface, and the control algorithm to regulate the thermal camera movements, and numerical simulations to depict the functionality.
Emulador de Equinoterapia para la Rehabilitación de Pacientes con Parálisis Cerebral Infantil
Authors:   , Real Sánchez D.
Published: December 2021

Nowadays, animal-assisted therapies are becoming more common in the rehabilitation field, one of the most outstanding is equine therapy or horse-assisted therapy, whose simple principles serve as an effective treatment for patients with infantile cerebral palsy conforming to various studies. Due to the conditions that are particularly necessary to maintain this type of therapy center, it tends to come at a high price, thus limiting its access to different patients. For this reason, a new alternative is presented that provides the same effects as equine therapy, designing an emulator so that this procedure is more affordable and can benefit a substantial number of people. For the outline of the prototype was realized an analysis of the equine gait to create a record and control of data, also a sketch of the electromechanical and monitoring system that will allow recreating the movements of the gait using the data collected. To corroborate the correct implementation of the therapy by checking the output variables, as well as protecting the physical integrity of the patients by verifying the limits and ranges allowed for the main blocks of the system. By comparing the operating principle on which the prototype proposal is based with the fundamentals of conventional therapy with animals, a new alternative could be composed for this procedure that would only require a study that proves its validity once developed.
Administración de Amoxicilina-Ácido clavulánico mediante celulosa bacteriana
Authors:   , Alvarez Flores A.
Published: December 2021

Este artículo aborda el desarrollo de un medio de administración de fármacos, específicamente antibióticos, utilizando celulosa bacteriana en respuesta a problemas detectados en los apósitos utilizados en pacientes con quemaduras, tales como biocompatibilidad, su capacidad para regenerar tejido y su disponibilidad. El proyecto consta de tres partes, la primera consistió en el cultivo de celulosa bacteriana, la segunda se ocupó de la adición de un antibiótico, la amoxicilina y ácido clavulánico y, finalmente, se llevaron a cabo pruebas de antibiograma. Para el cultivo de celulosa bacteriana se preparó una solución de 2 litros, siendo 10% de sacarosa, 2% de té negro y 1% de ácido acético, añadiendo 10% del inóculo de Acetobacter Xylinum. El cultivo se cubrió con una tela esterilizado y se dejó reposar durante 25 días. La capa formada fue extraída e introducida en una solución 0.1 M de NaOH en agua caliente durante 15 minutos, se enjuagó y dejó en un horno durante 20 horas a 50 °C. El fármaco fue añadido, sumergiéndolo en amoxicilina-ácido clavulánico a 0.04M, 0.027M y 0.013M, manteniéndolos en un agitador orbital a 100 rpm durante 44 horas. Para comprobar la liberación del antibiótico y determinar su eficacia contra patógenos como Staphylococcus Aureus y Staphylococcus spp, se realizaron las pruebas de antibiograma. Se identificó que las pruebas que mostraron la mayor tasa de inhibición fueron las de ácido amoxicilina clavulánico a 0,027M, inhibiendo 1143,69 mm2. Se concluyó que es posible emplear la celulosa bacteriana como medio para la administración de fármacos como antibióticos.
Análisis de la dinámica tridimensional de evaporación de gotas sésiles de interés biomédico
Authors:   , Bribiesca A.
Published: December 2021

The structure of the flow inside evaporating sessile droplets of bodily fluids such as urine, blood, and saliva can provide crucial information for medical diagnosis, however the experimental analysis of the evaporation dynamics has proved to be a challenge due to the flow’s three-dimensional and time-dependent nature. In this work we present a method to analyze the 3D+t evaporation dynamics of a sessile droplet using a modified optic microscope coupled with homemade digital image processing and data analysis software. We show how the method works on distilled water droplets and highlight how it will contribute to the analysis of biological fluids.
NeuroPort: Retractor tubular personalizado para cirugías mínimamente invasivas fabricado mediante impresión 3D por estereolitografía
Authors:   , González Leal C. J.
Published: December 2021

NeuroPort is a low cost customized biodevice for minimal invasion surgeries designed within Servicio Neurocirugía UANL and Departamento de Ingeniería Biomédica; and manufactured by stereolithography, a high- resolution 3D printing method. This biodevice provides a channel of approach for subcortical and intraventricular cerebral surgical procedures with an intended use in the treatment of diseases such as brain tumors, anomalies or vascular malformations, parenchymal hematomas, among others. It has a design that minimizes tissue damage by displacing the tissues of the brain during the advance toward the desired abnormality; in addition to its integration with neuronavigational equipment and its own lighting system. All these features designed to make the surgical procedure faster and safer for the patient, facilitating the work of the neurosurgeon.
Identificación de Variables Clínicas Asociadas al Diagnóstico Correcto e Incorrecto en Enfermedades Respiratorias
Authors:   , Siordia-Millán Sinhue
Published: December 2021

In emergency rooms, it is common that several patients present symptoms associated with pulmonary diseases as pneumonia and pulmonary embolism, however, their initial diagnosis presents several challenges: a) both share symptoms, b) the lack of imaging studies at the first diagnosis stage and, c) the amount of data resulting from laboratory analysis are vast to be quickly analyzed. Thus, supporting medical staff through the use of computational tools for detecting clinical variables that are significant on the initial diagnosis, is crucial. Hence, a collaboration with the Centro Medico Nacional de Occidente (CMNO) of the Instituto Mexicano del Seguro Social (IMSS) was established to gather, process, and analyze patients' electronic medical records with a pulmonary embolism or pneumonia diagnosis who were admitted through the emergency room. Data extracting and processing of patients’ medical records (PDF) were performed. Thereafter, a statistical and associative analysis (Apriori) was performed looking for the determination of the clinical variables associated with a correct or incorrect prognosis. As a result, during the patient diagnosis several frequently present variables were identified, pointing out those that whose median values were significantly different for both diseases studied here. Finally, some laboratory variables are suggested to be carefully observed while a patient's initial diagnosis is performed.
La Generación de herramientas genómicas para la investigación y determinación de factores de riesgo genético de obesidad en la población mexicana
Authors:   , Hernández-Rosas F.
Published: December 2021

Genetic predisposition has been shown to play a key role in obesity. Genome-wide association studies (GWAS) have identified multiple loci linked with obesity in various ethnic groups. However, their contribution to obesity in the Mexican population is largely unknown. The aim of this study was to determine if there is evidence of an association between 52 candidate polymorphisms (SNPs) and the susceptibility to develop overweight and obesity in Mexican adults. To achieve this goal, we developed a multiplexed genetic panel to identify 52 SNPs per patient by MALDI-TOF mass spectrometry-based SNP genotyping. To test the genetic panel, we collected DNA samples from the whole blood of 1117 patients from central Mexico. In our study, we found 8 loci associated with the obesity phenotype and the increase in BMI in the Mexican population in genes that encode proteins: Leptin, LINGO2, AP2B transcription factor, and FTO. The results of the work will be used in later stages for the study of specific therapeutic targets to reduce obesity and for the investigation of new genetic factors that could be predictive in the Mexican population.
Avances en el uso de simulaciones computacionales para comprender mejor los efectos biomecánicos del glaucoma
Authors:   , Rosales Medina L. M.
Published: December 2021

The use of computational simulations using the finite element method is a useful tool to observe the effects that intraocular pressure causes on some structures of the eye. Both, the simulations that focus on analyzing the anterior and posterior poles provide data about changes that occur having certain pressure values. Even knowing that the main effects of primary angle glaucoma are palpable in the optic nerve, the usefulness of the results obtained from simulations that focus on studying the cornea or other structures is not ruled out, since these are structures affected since that is where it originates in a glaucoma disease beginning. This review article tries to cover some of the articles focused on computational simulations of the eye and its biomechanical changes due to glaucoma in recent years, as well as to review the considerations that were made in each one to arrive at their respective results.
Uso de capas PML en el Modelado del Campo Acústico de un Transductor HIFU Cóncavo
Authors:   , García-López J. C.
Published: December 2021

High intensity focused ultrasound (HIFU) as a non-invasive technique is under study due to its application in rehabilitation and as oncological therapy. High intensity pressure in a millimetric space generates high acoustic intensity that produces an ablation temperature (> 60 °C). For treatment planning in cancer therapy and systems characterization, it is usual to use computational modeling. Finite Element Method (FEM) is a common tool used to solve acoustic fields produced by HIFU transducers. However, the computational cost could represent an issue; therefore, it is necessary to simplify the model to try obtaining an approximate solution that can be validated. In this work, modeling of the acoustic propagation of a HIFU transducer was made by means of a perfectly absorbing artificial layer named perfectly matched layer (PML). The methodology consisted in the proposal of a minimum distance to place this layer from the region of interest, which keeps a relation to the focal zone. The results showed a decrease in the number of elements used for the solution; consequently, there was a reduction of more than twice the simulation time compared to a reference model. The simulations were validated with experimental acoustic pressure measurements along the propagation axis where the maximum pressure was located at 97 mm. For our model, the maximum pressure reached was found at 97.165 mm, whereas for the other models there was an increase in distance up to 0.62 mm.
Chinese herbal medicines with beneficial effects
Authors: Guo De-an , Wei Wenlong , Yao Changliang , Zhang Jianqing , Bi Qirui
Published: December 2021

Among the vast resources of traditional Chinese medicine (TCM) herbal species, only a handful of Chinese herbs are growing in frigid regions or extreme environment but they have a unique property. The most recognizable TCM herb falling in this category is Panax ginseng, which is widely considered the representative tonic herb with oceans of beneficial effects on human health. In this article, we will introduce several typical Chinese herbal medicines with beneficial effects aiming to arouse broader attention from the scientific community to expand the exploration and exploitation on this for their potential applications to meet the increasingly demanding medical needs.
Ibuprofen treatment for patent ductus arteriosus in preterm infants: a retrospective cohort study in a leading Chinese center
Authors: Chen Jia , Luo Jinghua , Liu Hao , Du Xue , Zhang Shan , Wang Zizhen , He Liu , Feng Zhichun
Published: December 2021

Objective

There is a dilemma of ibuprofen treatment with patent ductus arteriosus (PDA) as to how and when to treat. We aimed to clarify this issue in very preterm infants (VPIs; < 32 weeks).

Methods

This retrospective study included 1 659 VPIs who were diagnosed with PDA according to echocardiographic examinations and cardiovascular dysfunction scoring system (the CVD scoring). The VPIs were classified into six groups (A1, A2, A3, B1, B2, and B3) based on CVD scores (A, < 3, and B, ≥ 3), and treatment with ibuprofen for PDA (1, conservational management; 2, early ibuprofen treatment; and 3, late ibuprofen treatment). Treatment was stopped when PDA was closed, CVD score was zero or PDA needed ligation.

Results

VPIs with CVD scores < 3 had most PDA closure without surgery, and early ibuprofen treatment did not significantly affect PDA closure. VPIs with CVD scores ≥ 3 had some PDA closure after 2 courses of treatment, but closure rates decreased linearly with ibuprofen course (1st 75.2%, 2nd 62.3%, 3rd 50.0%, P < 0.0001), and early ibuprofen treatment (group B2) did not increase PDA closure compared to late ibuprofen treatment (group B3). In these same infants, the longer they were in CVD scores ≥ 3, the more the complications of preterm were increased (retinopathy of prematurity ROP 1st 16.5%, 2nd 23.8%, 3rd 29.6%, P = 0.016; bronchopulmonary dysplasia BPD 1st 15.5%, 2nd 26.7%, 3rd 33.8%, P < 0.0001; intraventricular hemorrhage IVH 1st 20.4%, 2nd 32.4%, 3rd 23.8%, P = 0.015).

Conclusion

Ibuprofen is suggested for PDA closure when the PDA reopens or has developed into the stage when the CVD score ≥ 3.
The Roles of Female Involvement and Risk Aversion in Open Access Publishing Patterns in Vietnamese Social Sciences and Humanities
Authors: Nguyen Minh-Hoang , Nguyen Huyen Thanh Thanh , Ho Manh-Toan , Le Tam-Tri , Vuong Quan-Hoang
Published: December 2021

Purpose

The open-access (OA) publishing model can help improve researchers’ outreach, thanks to its accessibility and visibility to the public. Therefore, the presentation of female researchers can benefit from the OA publishing model. Despite that, little is known about how gender affects OA practices. Thus, the current study explores the effects of female involvement and risk aversion on OA publishing patterns among Vietnamese social sciences and humanities.

Design/methodology/approach

The study employed Bayesian Mindsponge Framework (BMF) on a dataset of 3,122 Vietnamese social sciences and humanities (SS&H) publications during 2008–2019. The Mindsponge mechanism was specifically used to construct theoretical models, while Bayesian inference was utilized for fitting models.

Findings

The result showed a positive association between female participation and OA publishing probability. However, the positive effect of female involvement on OA publishing probability was negated by the high ratio of female researchers in a publication. OA status was negatively associated with the JIF of the journal in which the publication was published, but the relationship was moderated by the involvement of a female researcher(s). The findings suggested that Vietnamese female researchers might be more likely to publish under the OA model in journals with high JIF for avoiding the risk of public criticism.

Research limitations

The study could only provide evidence on the association between female involvement and OA publishing probability. However, whether to publish under OA terms is often determined by the first or corresponding authors, but not necessarily gender-based.

Practical implications

Systematically coordinated actions are suggested to better support women and promote the OA movement in Vietnam.

Originality/value

The findings show the OA publishing patterns of female researchers in Vietnamese SS&H.
Public Reaction to Scientific Research via Twitter Sentiment Prediction
Authors: Shahzad Murtuza , Alhoori Hamed
Published: December 2021

Purpose

Social media users share their ideas, thoughts, and emotions with other users. However, it is not clear how online users would respond to new research outcomes. This study aims to predict the nature of the emotions expressed by Twitter users toward scientific publications. Additionally, we investigate what features of the research articles help in such prediction. Identifying the sentiments of research articles on social media will help scientists gauge a new societal impact of their research articles.

Design/methodology/approach

Several tools are used for sentiment analysis, so we applied five sentiment analysis tools to check which are suitable for capturing a tweet's sentiment value and decided to use NLTK VADER and TextBlob. We segregated the sentiment value into negative, positive, and neutral. We measure the mean and median of tweets’ sentiment value for research articles with more than one tweet. We next built machine learning models to predict the sentiments of tweets related to scientific publications and investigated the essential features that controlled the prediction models.

Findings

We found that the most important feature in all the models was the sentiment of the research article title followed by the author count. We observed that the tree-based models performed better than other classification models, with Random Forest achieving 89% accuracy for binary classification and 73% accuracy for three-label classification.

Research limitations

In this research, we used state-of-the-art sentiment analysis libraries. However, these libraries might vary at times in their sentiment prediction behavior. Tweet sentiment may be influenced by a multitude of circumstances and is not always immediately tied to the paper's details. In the future, we intend to broaden the scope of our research by employing word2vec models.

Practical implications

Many studies have focused on understanding the impact of science on scientists or how science communicators can improve their outcomes. Research in this area has relied on fewer and more limited measures, such as citations and user studies with small datasets. There is currently a critical need to find novel methods to quantify and evaluate the broader impact of research. This study will help scientists better comprehend the emotional impact of their work. Additionally, the value of understanding the public's interest and reactions helps science communicators identify effective ways to engage with the public and build positive connections between scientific communities and the public.

Originality/value

This study will extend work on public engagement with science, sociology of science, and computational social science. It will enable researchers to identify areas in which there is a gap between public and expert understanding and provide strategies by which this gap can be bridged.
Factors Shaping Brand Awareness of Sumba Weaving Products in a Phenomenological Perspective
Authors: Sari Wulan Purnama , Mei Ie Mei Ie , Tunjungsari Hetty Karunia
Published: December 2021

The fashion industry is included in the top three creative industry sectors in Indonesia. The development of the fashion industry is also supported by various parties and is also enlivened by the distinctive fashion of Indonesian traditional fabrics. Several traditional Indonesian fabrics, such as batik, lurik, Lombok songket have successfully penetrated the international market, so the opportunity to continue developing the fashion industry with traditional fabrics is still large. One of them is to use a typical Sumba woven cloth which is not gaining popularity with Sumba as a tourist destination. Therefore, this research was conducted with the aim of digging deeper into the factors that shape the brand awareness of Sumba woven fabrics. This research was conducted using a qualitative approach and phenomenological methods, with data collection using the Focus Group Discussion (FGD) technique. The results showed that the factors that formed brand awareness of Sumba woven fabrics were divided into two, namely internal and external factors. Internal factors are factors that come from the product itself, such as motif, price, color, age of fabric, quality, craftsmen. While external factors come from outside the product, including the power of word of mouth, organizing events (exhibitions), government involvement (regional and central), and showing the identity of the wearer. Industri fashion termasuk dalam tiga besar sektor industri kreatif di Indonesia. Perkembangan industri fashion ini juga didukung berbagai pihak, serta turut diramaikan dengan fashion khas kain tradisional Indonesia. Beberapa kain tradisional Indonesia, seperti batik, lurik, songket Lombok telah berhasil menembus pasar internasional, sehingga peluang untuk terus mengembangkan industri fashion dengan kain tradisional masih besar. Salah satunya adalah dengan menggunakan kain tenun khas Sumba yang kurang mendapatkan popularitas dengan Sumba sebagai destinasi wisata. Oleh karenanya, penelitian ini dilakukan dengan tujuan untuk menggali lebih dalam mengenai faktor yang membentuk brand awareness kain tenun Sumba. Penelitian ini dilakukan dengan menggunakan pendekatan kualitatif dan metode fenomenologi, dengan pengumpulan data menggunakan teknik Focus Group Discussion (FGD). Hasil penelitian menunjukkan bahwa faktor yang membentuk brand awareness atas produk kain tenun Sumba dibedakan menjadi dua, yaitu faktor internal dan eksternal. Faktor internal merupakan faktor yang berasal dari produk sendiri, seperti motif, harga, warna, usia kain, kualitas, pengarajin. Sedangkan faktor eskternal berasal dari luar produk, meliputi kekuatan dari word of mouth, penyelenggaraan event (pameran), keterlibatan pemerintah (daerah dan pusat), dan menunjukkan identitas pemakainya.
ANALISA KINERJA PERUSAHAAN DALAM RANGKA PERSIAPAN SPIN OFF UNIT USAHA SYARIAH PT. ASURANSI ADIRA DINAMIKA
Authors: Suryawadi Eko
Published: December 2021

Penelitian ini bertujuan untuk menganalisa tingkat kesiapan Unit Usaha Syariah PT. Asuransi Adira Dinamika,Tbk  dengan menggunakan metode penelitian deskriptif kuantitatif. Data yang dikumpulkan adalah data sekunder diperoleh dari laporan keuangan tahun 2016-2019. Pengukuran kinerja dilakukan dengan menentukan persentase rasio pencapaian perspektif keuangan pada indikator-indikatornya sebagai dasar pencapaian target keuangan dalam persiapan spin off. Hasil penelitian menunjukkan bahwa kinerja Unit Usaha Syariah PT. Asuransi Adira Dinamika,Tbk  pada tahun 2016 –2019 secara umum dalam kondisi sangat sehat dan memenuhi syarat  untuk melakukan spin off sesuai Undang-Undang No. 40 Tahun 2014 dan POJK No 67/POJK.05/2016.
Deciphering the effect of Natural Fermentation on Nutritional, Anti-nutritional compounds and Antioxidant Activity of Finger millet landraces
Authors: Kazi Tahsin , Sharma Lokesh , Auti Sanjay
Published: December 2021

Fermentation is one of the most important bioprocessing techniques used to enhance nutritional components and a reduction in anti-nutritional compounds. In the present work, germinated and ungerminated grains of white and red –brown finger millet landraces were subjected to 8, 16 and 24 hours of fermentation to find out its response in terms of nutritional, anti-nutritional compounds and antioxidant activity. White and red-brown grains showed significant response to 16 and 24 hours process in terms of nutritional and anti-nutritional changes. Significant reduction in the tannin content (73%) was noted for germinated and un-germinated grains with the enhancement in nutritional compounds. Highest antioxidant activity was noted for germinated (91%) grains of white seed coat color grains. Process of natural fermentation and the microflora produces various endogenous enzymes which causes enhancement and reduction of nutritional and antinutritional compounds. Obtained results prove the importance of fermentation process and conservation of landraces for nutritional security.
Biogenic metallic nanoparticles and their anticancer activities: Biotechnological perspectives
Authors: Pathak Praveen , Sharma Chandra Kant
Published: December 2021

Cancer is considered to be a dreaded disease throughout the world. There are many different types of drugs available to treat this disease. Nowadays, scientists are engaged to develop drugs at the nanoscale. The nano-drugs are found to exhibit more efficiency and accuracy. Nanotechnology is an emerging technology dealing with the development of nano-particles and nanostructures. These substances have acquired significance because of their size, shape and potential efficiency as well as specificity. Nano-particles mediated drugs were very focusing, emerging objective regarding the use of different types of nanoparticles as carrier to treat cancerous tumors and cancer cells. Medicinal lysis or synthesis of nanoparticles with biological procedures has become very much significant due to their specific efficacy and lesser harms compared to other available medicines used for cancer. In this review, green plants, their active compounds and metallic nano-particles are discussed with emphasis on their anticancer activities and properties.
Basketbol ve Voleybolda Tek Taraflı Counter Movement Sıçrama Değerlerinin Karşılaştırılması
Authors: MAKARACI Yücel , UYSAL Abdullah , SOSLU Recep
Published: December 2021

Hücum ve savunmadaki aksiyonların optimum düzeyde gerçekleştirilmesi bakımından basketbol ve voleybolda sıçrama kapasitesi ön plana çıkmaktadır. Bu çerçevede sıçrama esnasında, bacakların performans düzeylerinin ayrı olarak (sağ-sol) incelenmesinin, olası kuvvet ve diğer farklılıklarının belirlenmesi açısından önemli bulgular ortaya koyacağı düşünülmektedir. Çalışmanın amacı basketbol ve voleybolcularda tek taraflı counter movement sıçrama (CMS) değerlerinin karşılaştırılmasıdır. Çalışma grubunu 2020-2021 sezonu Türkiye basketbol ve voleybol liglerinde aktif olarak yer alan toplam 50 erkek sporcu (29 basketbolcu, 21 voleybolcu) oluşturmaktadır. Sporculara standart ısınma protokolünü takiben Kistler Kuvvet Platformu kullanılarak “tek taraflı counter movement sıçrama (CMS)” testi uygulanmıştır. Başarılı olan toplam üç sıçramanın (sağ ve sol bacak) ortalaması kaydedilmiştir. Grupların homojenliği Levene testi; gruplar arasındaki değişkenlerin farkı Independent sample t testi ile belirlenmiş ve anlamlılık değeri p<0,05 olarak kabul edilmiştir. Sonuçlar voleybolcuların özellikle sol bacak CMS testine ait parametrelerde daha iyi skorlara sahip olduğunu göstermektedir. Ayrıca voleybolcuların sağ/sol bacak “sıçrama yüksekliği” ve “aktif sıçrama süresi” parametrelerinde istatistiki olarak daha iyi değerlere sahip olduğu tespit edilmiştir (p<0,05). Temelde sıçrama özelliğinin yoğun olarak kullanıldığı iki branşa ait bulgular incelendiğinde; voleybolcuların dikey sıçrama ile karakterize değerlerde daha iyi sonuçlar ortaya koymasının, tek taraflı sıçramanın voleybolda birçok teknikte baskın oluşu, sporcu profili ve vücut kompozisyonu gibi faktörlerden kaynaklandığı düşünülmektedir.