bluuebunny/crossref_metadata_2025 huggingface dataset:
El wahabismo. La religión como elemento legitimador del poder político en Arabia Saudí, 1932-2005.
Authors: Lorenzo Cuesta José Antonio
Published: December 2020

La relación entre el wahabismo y el poder político saudí ha sido cercano y solidario desde la fundación del primer Estado saudí hasta la actualidad. Sin el apoyo de los Saud al wahabismo este no habría logrado la posición de predominio en el mundo islámico de la península arábiga. Sin el apoyo del wahabismo a la casa de Saud es poco probable que esta dinastía hubiese conseguido el control político del país. El wahabismo proporcionó la base sobre la cual los Saud reclamaron la legitimidad tanto para unificar los diversos territorios que conformaban Arabia como para ostentar el gobierno sobre los mismos. Sin embargo, esta relación simbiótica, ha tenido también un elemento restrictivo, puesto que el Gobierno ha tenido que actuar siempre dentro del círculo prescrito por los ulemas wahabitas para mantener su apoyo, políticas consideradas ofensivas por la sensibilidad religiosa del wahabismo se han evitado por parte del poder político.
Auge y declive de la actividad arrocera en Sinaloa, México: 1960–2010
Authors: Frías Sarmiento Eduardo , Calderón Guzmán Blanca Jeanette
Published: December 2020

La investigación que desarrollamos sobre el arroz en México refleja la importancia que tuvo el producto para una de las zonas agrícolas más importantes del país, como es el caso de Sinaloa, un espacio que por más de cien años se ha considerado el granero de México por su elevado volumen en la producción de maíz, garbanzo y otros granos como el arroz, gramínea que se introdujo en la entidad a mediados del siglo XX y que alcanzó su esplendor de 1960 a 1990. Su cultivo capturó el interés de los grandes empresarios agrícolas de la región, pues vieron en este cereal un nicho de oportunidades que repercutían en la producción, industrialización y en la comercialización del grano y de sus derivados. En poco tiempo Sinaloa se convirtió en la entidad productora de arroz más importante del país, al grado de conformar un sistema agroalimentario con características representativas de los distritos agroindustriales. Sin embargo, por el efecto de las políticas neoliberales que permitían la importación de arroz de otros países, así como las sequías y otros factores que no favorecieron al cultivo interno, a partir de 1990 la actividad perdió importancia en Sinaloa hasta desaparecer del paisaje en el 2010.
Vivir de la tierra. Organización, conflicto y cambio en la Catalunya agraria: la Unió de Pagesos, 1973-1979
Authors: Ferrer González Cristian , Puig Vallverdú Guillem
Published: December 2020

La Unió de Pagesos se constituyó a finales del franquismo como una experiencia sindical unitaria, democrática e independiente, tanto de los partidos políticos como de los poderes económicos. El proceso de construcción como central del campesinado catalán estuvo atravesada por las dinámicas centrífugas que afectaron al conjunto del antifranquismo durante la transición a la democracia. Sin embargo, la Unió de Pagesos llegaba a 1979 camino a la consolidación y siendo de las pocas organizaciones unitarias exitosas del periodo. En este artículo exploramos el origen, construcción y consolidación del sindicato campesino en un contexto de cambio político del que también fue un agente imprescindible en el campo catalán.
La Universidad Pública y su rol en la pandemia COVID-19: laboratorios de diagnóstico al servicio de la red nacional de laboratorios de influenza y otros virus respiratorios
Authors: Toro Rosana , Unzaga Juan Manuel , Marquez Gonzalo , Panei Javier , Bosch Alejandra , Docena Guillermo , Abba Martín Carlos , Hozbor Daniela
Published: December 2020

La enfermedad por coronavirus 2019 (COVID-19) se informó por primera vez en Wuhan, China, el 31 de diciembre de 2019, declarándose emergencia de salud pública de importancia internacional en primera instancia y posteriormente elevada a la categoría de pandemia. Ante la grave situación sanitaria producto de la propagación del SARS-CoV-2, el Ministerio de Salud de la Provincia de Buenos Aires y la Universidad Nacional de La Plata establecieron un convenio de cooperación con la finalidad de que la Universidad Nacional de La Plata provea capacidad diagnóstica al sistema sanitario. Luego de un período de adecuación de los laboratorios e implementación de protocolos se inició tempranamente con el diagnóstico del SARS-CoV-2, habiendo procesado a fines de septiembre de 2020 más de 32.000 muestras provenientes de diversos Municipios de las Regiones Sanitarias I, II, IV, VI, X y XI de la Provincia de Buenos Aires. Los laboratorios participantes de las Facultades de Ciencias Exactas, Ciencias Médicas y Ciencias Veterinarias forman parte de los Laboratorios de referencia de COVID-19 de la Provincia de Buenos Aires y articulan dicha labor con diversas actividades de investigación, docencia y desarrollo con la finalidad de proveer soluciones al sistema de salud en el contexto de la pandemia.  de salud en el contexto de la pandemia.
Fortalecimiento de las capacidades de diagnóstico e investigación del Laboratorio de Salud Pública de la Facultad de Ciencias Exactas (UNLP), integrado a la red de diagnóstico de SARS-CoV-2 de la Provincia de Buenos Aires
Authors: Docena Guillermo H.
Published: December 2020

Desde que se informó el primer caso de enfermedad por COVID-19 en China, en diciembre de 2019, y se declaró la crisis sanitaria y luego la pandemia, los sistemas de Salud debieron adaptar sus estructuras para realizar diagnóstico, vigilancia, monitoreo de la respuesta inmune y evaluación de la protección inmune post-infección o post-vacunación. En este escenario el Grupo COVID Exactas, a través del Laboratorio de Salud Pública, de la Secretaría de Extensión de la Facultad de Ciencias Exactas, montó un laboratorio de diagnóstico para realizar la detección del RNA viral en muestras de pacientes mediante su amplificación RT-qPCR. Para paliar la falta de disponibilidad de reactivos y simplificar la extracción del RNA se encaró el desarrollo de un sistema basado en nanopartículas magnéticas recubiertas de sílice, que no requieren el uso de centrifuga. Al mismo tiempo, el grupo Serología comenzó a monitorear anticuerpos séricos IgG específicos, mientras que el grupo Investigación comenzó a desarrollar inmunoensayos para detección de IgG/IgM/IgA específicos y caracterización de espectros infrarrojo y fluorescente en muestras de orina. En este contexto de gravedad sanitaria la UNLP y el Ministerio de Salud de la Provincia de Buenos Aires (PBA) firmaron un convenio de cooperación y trabajaron en la adecuación de laboratorios, coordinación de distribución de muestras, provisión de reactivos e insumos y diseño de estrategias conjuntas de vigilancia para aportar soluciones al sistema de salud en el contexto de pandemia. Asimismo, el interés del Gobierno de la PBA por los desarrollos de los institutos de la UNLP y de doble dependencia UNLP-CONICET, dio lugar a otro convenio tripartito con finalidades específicas.
Desarrollo de un esterilizador de aire UV-C para el control de la transmisión aérea del COVID-19
Authors: Manuel Macias , Luchetti Cesar Gabriel , Kitrilakis Alicia , Pelizza Sebastian , Laborde Juan , Ayala Miguel , Zubieta Martín
Published: December 2020

En el contexto de la pandemia porCOVID-19, y considerando que existe una transmisión área del virus, que la OMS tardó en reconocer, pero que hoy está comprobado, decidimos desarrollar un Esterilizador de Aire con una combinación específica de Filtros Especiales y el uso de Luz UV-C.

Luego del desarrollo del esterilizador (Belerofonte I), se realizaron pruebas biológicas, con Virus, Bacterias, Hongos y Esporas, para ver su efectividad en esterilizar ambientes. Luego de los resultados contundentes obtenidos, y de las pruebas de flujo de aire realizadas en Ingeniería, el equipo se escaló a un tamaño más pequeño, logrando las mismas prestaciones (Belerofonte II). Con el segundo prototipo se repitieron las pruebas, mostrando la misma efectividad.

Si bien el desarrollo se enmarca en la pandemia por COVID-19, sería de utilidad a largo plazo, dadas sus prestaciones, para evitar infecciones intrahospitalarias, y que podría ser aplicable a consultorios, transporte público, locales comerciales, entre otros.
Book Review Nikolai Petrovich Popov, Rossiia i Amerika: “Priamaia Sviaz’”. Vospominaniia Amerikanista i Sovietologa [Russia and America: “The Direct Connection.” Recollections of an Amerikanist and Sovietologist]. Moscow: Knig-Izdat, 2020.
Authors: Clemens Jr. Walter C.
Published: December 2020

Better Red than dead?” This question was still being debated in Europe when the first batch of US grad students arrived in the USSR under terms of the cultural exchange signed by Willliam Lacy for the US State Department and Soviet Ambassador Georgii Zarubin on January 27, 1958. Most of the twenty American students arrived at Moscow State University (MGU) in September, but a few went to Leningrad State University. Their Soviet counterparts went to Harvard and Columbia—the only US universities the Soviets deemed on a par with MGU and Leningrad. As one of those at MGU, I proposed to the History Faculty that I research “Soviet Disarmament Policy, 1917-1934,” for my Ph.D. at Columbia. A sign of future trouble, when the department typed the title in Russian, it came out as “The Soviet Struggle for Disarmament.” On the positive side, the department assigned as my adviser a retired diplomat specializing in disarmament, Boris Efimovich Shtein, out of favor in the late Stalin years because he had been close to another Jew suspected of pro-Western leanings, Maksim Litvinov.
Self-Efficacy Belief and the Influential Coach: An Examination of Collegiate Athletes
Authors: Weight Erianne , Lewis Megan , Harry Molly
Published: December 2020

Self-efficacy beliefs related to the performance of a task have been identified as strong predictors of performance success. Research has hypothesized that the most influential contextual factor in athlete self-efficacy development is the athlete-coach relationship, yet there is little research on this relationship. The purpose of this study was to examine collegiate athletes’ perceptions of the prevalence of transformative and destructive coaches, the teaching methods athletes perceive to be transformative (strengthening self-efficacy belief), and the influence of coaching methods on sport self-efficacy belief. Just over two-thirds of the athletes expressed having transformative coaches while over one-third experienced coaches they defined as destructive, with many of these coaches utilizing overtly abusive tactics. This positive and negative exposure was significantly related to athlete self-efficacy belief. Transformative coaching methods were highlighted which add to the body of sport management research by highlighting how coaches influence performance beliefs of their athletes.
Insights into EFL Teachers’ and Students’ Perspectives on Communicative Skills Represented in English Textbooks
Authors: Tu Tran Phan Ngoc , Thao Tran Quoc
Published: December 2020

Course books play an integral part in the process of teaching and learning in general and that of English language teaching and learning. Additionally, it is vital to choose appropriate course books for students to develop their communicative skills. In the context of Vietnam, the new English textbooks for high school students have been designed in an attempt to enhance the communication competence among Vietnamese high school students. Within such a context, this study aims at exploring EFL teachers and students’ perspectives on communicative skills represented in the new English textbooks grade 10. This study involved 42 students in answering a questionnaire and 5 teachers in responding the interview questions. The findings indicated that the new English textbooks grade 10 could improve their communicative skills. Specifically, the activities designed in the textbooks reinforced the communicative skills among students. Furthermore, language provided in the textbooks is appropriate and conducive for students, and the subject and content could aid students’ communicative skills. Such preliminary findings are hoped to contribute to a better understanding of the new English textbooks in English language learning in Vietnamese context.
The Value of the Patient History in the Periodic Health Evaluation: Patient Interviews Capture 4 Times More Injuries Than Electronic Questionnaires
Authors: Nabhan Dustin , Taylor David , Hedges Andrew , Bahr Roald
Published: December 2020

Objective

To assess the value of the patient interview and electronic questionnaire methods of health history data collection in elite athletes.

Design

Cohort study.

Methods

A retrospective chart review compared health history data collected by questionnaire and by interview in a cohort of 142 athletes who participated in a periodic health evaluation at the US Olympic & Paralympic Training Center sports medicine clinic. The main outcome measure was number of injuries reported by either interview or written questionnaire.

Results

Six hundred twenty-six injuries were reported by interview and 157 by questionnaire. The mean ± SD number of injuries reported per participant was 4.4 ± 4.2 by interview and 1.1 ± 1.3 by questionnaire (difference, 3.3; P<.001). Capture rate by method was similar across sexes and for both Olympic and Paralympic athletes. More injuries were reported by interview than by questionnaire for all injury categories, except for concussions and surgeries.

Conclusion

Patient interviews capture 4 times as many past or current injuries than electronic questionnaires in athletes training for the Olympic and Paralympic Games. Questionnaires provide incomplete health history information in this patient population. J Orthop Sports Phys Ther 2021;51(1):46–51. Epub 11 Dec 2020. doi:10.2519/jospt.2021.9821
Avaliação da independência funcional, qualidade de vida e frequência dos sintomas de depressão em mulheres sobreviventes ao câncer de mama
Authors: Tertuliano Amanda Novaes Vieira , Vieira Renata Alvarenga , Ferraz Leidiléia Mesquita , Bittencourt Jaqueline Ferreira Ventura , Grincenkov Fabiane Rossi dos Santos , Carvalho Simone Meira
Published: December 2020

Objetivo: Avaliar a independência funcional, qualidade de vida e frequência de sintomas depressivos em mulheres sobreviventes ao câncer de mama e verificar a presença de associação entre incapacidade funcional, qualidade de vida e a presença de sintomas depressivos. Métodos: Trata-se de um estudo observacional, transversal, com uma amostra de conveniência composta por 23 mulheres submetidas à mastectomia ou quadrantectomia com ou sem abordagem axilar. Os instrumentos utilizados foram questionário sociodemográfico, DASH, WHOQOL-bref, e HADS, que avaliavam, respectivamente, a funcionalidade do membro superior, qualidade de vida, e sintomas depressivos. Resultados: A função do membro superior apresentou um percentual 82,60% de incapacidade entre as participantes do estudo e foi associada a domínios físicos e ambientais de qualidade de vida. A qualidade de vida apresentou declínio no domínio físico e o domínio psicológico foi o melhor avaliado. Os sintomas depressivos foram observados em 47,83% das participantes. Conclusão: A incapacidade funcional e os sintomas depressivos foram muito frequentes em mulheres sobreviventes ao câncer de mama. A incapacidade funcional foi associada aos domínios da qualidade de vida, mas não se associou a presença de sintomas depressivos. Destaca-se a importância da detecção e intervenção precoce dos comprometimentos que os tratamentos do câncer de mama podem desencadear.
Intrasellar cysticercosis cyst treated with a transciliary supraorbital keyhole approach – A case report
Authors: Cuellar-Hernandez J Javier , Valadez-Rodriguez Alan , Olivas-Campos Ramon , Tabera-Tarello Paulo , Juan-Orta Daniel San , Segura-López Roberto , Fleury Agnès
Published: December 2020

Background:

Neurocysticercosis is the most common parasitic disease affecting the central nervous system. Isolated sellar cysticercosis cysts are rare and can mimic other sellar lesion as cystic pituitary adenoma, arachnoid cyst, Rathke cleft cyst, or craniopharyngioma. The surgical resection is mandatory because the cysticidal drugs are ineffective, however, new microsurgical approaches are emerging to reduce complications and need to test in this condition. We present a patient with a sellar cysticercosis cyst treated by transciliar supraorbital keyhole approach.

Case Description:

A 45-year-old female with presented with chronic severe headaches, progressive deterioration of 6 months in visual acuity and bitemporal hemianopia. The pituitary hormonal levels were normal. Magnetic resonance findings showed a sellar and suprasellar cyst and underwent a microsurgical supraorbital transciliar keyhole approach for lesion resection. Pathologically, the lesion demonstrated a parasitic wall characterized by wavy, dense cuticle, and focal globular structure, surrounding inflammatory reaction with plasma cells. Postoperatively, the patient recovery fully neurologically.

Conclusion:

Intrasellar cysticercosis cyst causes significant neurological deficits due to its proximity to the chiasm, optic nerves, pituitary stalk, and the pituitary gland. Surgical section is an effective treatment. The supraorbital keyhole craniotomy offers satisfactory exposure, possibility of total resection with dissection of the supra and parasellar structures, short operative time, less blood loss, short hospital stay, and good overall surgical outcome.
APLIKASI DIAGNOSIS PENYAKIT AYAM BROILER DENGAN SISTEM PAKAR MENGGUNAKAN METODE CERTAINTY FACTOR
Authors: , Ilhamsyah Dwi Cahyo Kuncoro
Published: December 2020

Pengendalian terhadap penyakit ayam dilakukan oleh para peternak dengan mengetahui gejala awal penyakit yang terjadi. Selain penyakit ayam, kurangnya tenaga ahli di sekitar area peternakan menjadi masalah tersendiri bagi peternak. Kurangnya pengetahuan dan informasi yang dimiliki peternak mengenai penyakit yang menyerang ayam menyebabkan peternak terlambat untuk menangani penyakit. Penelitian ini membangun sebuah aplikasi sistem pakar diagnosis penyakit ayam broiler dengan sistem pakar menggunakan metode certainty factor yang akan membantu peternak untuk mendeteksi penyakit ayam broiler. Aplikasi sistem pakar yang dibangun berbasis web, metode certainty factor berfungsi memberikan nilai gejala terhadap penyakit dan nilai jawaban yang diperoleh dari seorang pakar. Keluaran yang dihasilkan aplikasi berupa jenis penyakit ayam broiler, faktor terjadinya penyakit dan cara penanganan penyakit. Pengujian aplikasi dilakukan dengan membandingkan data dari peternak meggunakan aplikasi dengan hasil diagnosa pakar sebanyak 30 sampel ayam, dari 30 data yang diuji 25 sampel ayam hasilnya sama dengan diagnosa pakar sedangkan 5 data uji berbeda dengan daignosa pakar. Sehingga nilai kemungkinan dalam mendiagnosa penyakit ayam broiler sebesar 83%.Kata kunci: certainty factor, penyakit ayam broiler, sistem pakar, diagnosa
PREDIKSI JUMLAH KEBUTUHAN OBAT MENGGUNAKAN METODE LEAST SQUARE BERBASIS WEBSITE (STUDI KASUS: UPTD PUSKESMAS PONTIANAK SELATAN)
Authors: , Rahmi Hidayati Maissy Della Danianty , Cucu Suhery
Published: December 2020

Pusat Kesehatan Masyarakat (Puskesmas) merupakan fasilitas pelayanan kesehatan ditingkat pertama pada masyarakat. Pelayanan kesehatan menjadi produktif jika sesuai dengan kebutuhan masyarakat, salah satunya adalah ketersediaan obat. Puskesmas menyimpan persediaan obat untuk penggunaan selama satu bulan dan membuat perencanaan permintaan obat selama satu bulan berikutnya. Saat ini perencanaan permintaan obat untuk penggunaan pada bulan berikutnya masih dilakukan berdasarkan perkiraan oleh petugas Puskesmas. Hal ini menyebabkan perencanaan persediaan obat tidak akurat karena terdapat sebagian obat mengalami kelebihan dan sebagian lainnya mengalami kekurangan. Oleh karena itu perlu adanya suatu sistem yang dapat digunakan untuk memprediksi jumlah kebutuhan obat pada bulan berikutnya, sehingga dapat dijadikan acuan permintaan obat ke Dinas Kesehatan. Metode yang digunakan untuk memprediksi jumlah kebutuhan obat adalah metode Least Square. Data aktual pemakaian masing-masing dari 20 jenis obat dan hasil prediksi pemakaiannya setiap bulan dalam satu tahun bervariasi, terdiri dari trend cenderung konstan, trend naik, dan trend turun. Dalam penelitian ini, perhitungan nilai error dari perbandingan data aktual dan nilai trend menggunakan Mean Absolute Percentage Error (MAPE). Rata-rata persentase nilai akurasi keberhasilan sistem prediksi jumlah kebutuhan obat menggunakan metode Least Square adalah 93,49%.Kata kunci: Puskesmas, Penggunaan Obat, Prediksi, MAPE, Least Square.
SISTEM MONITORING KUALITAS UDARA SECARA REALTIME DENGAN PERINGATAN BAHAYA KUALITAS UDARA TIDAK SEHAT MENGGUNAKAN PUSH NOTIFICATION
Authors: , Suhardi Ikhwan Prayoga , Dedi Triyanto
Published: December 2020

Udara merupakan suatu campuran gas yang terdapat pada lapisan yang mengelilingi bumi. Kualitas udara penting untuk kehidupan makhluk hidup terutama bagi manusia. Pada penelitian ini dibuat suatu sistem monitoring kualitas udara secara realtime. Selain melakukan monitoring sistem ini juga akan mengirimkan push notification kepada pengguna ketika kualitas udara berada pada kategori tidak sehat, sangat tidak sehat atau berbahaya. Sistem yang dibuat akan melakukan pengukuran PM10, pengukuran karbon monoksida, deteksi asap, pengukuran suhu dan kelembapan udara. Pengukuran konsentrasi PM10 menggunakan sensor GP2Y1010AU0F, pengukuran karbon monoksida menggunakan sensor MQ-7, deteksi asap menggunakan sensor MQ-2 serta pengukuran suhu dan kelembapan menggunakan sensor DHT-11. Proses pengiriman data ke server menggunakan NodeMCU yang telah terhubung ke jaringan wifi dan internet. Sistem yang dibuat telah berhasil melakukan monitoring kualitas udara secara realtime dan pengiriman push notification kepada pengguna. Penentuan kualitas udara di tentukan oleh nilai pengukuran PM10 dan karbon monoksida. Kualitas udara tidak sehat berada pada rentang pengukuran 101 sampai 199. Kualitas udara kategori sangat tidak sehat berada pada pengukuran 200 sampai 299. Kualitas udara kategori berbahaya berada pada pengukuran lebih dari 300. Untuk satuan pengukuran PM10 yaitu g/m3 dan satuan pengukuran karbon monoksida yaitu ppm.Keywords: Monitoring, Push Notification, Kualitas Udara, PM10, Karbon Monoksida, Asap, Suhu dan Kelembapan.
PENERJEMAHAN BAHASA ISYARAT MENGGUNAKAN METODE GENERALIZED LEARNING VECTOR QUANTIZATION (GLVQ)
Authors: , Dwi Marisa Midyanti Dwi Gustiar , Sampe Hotlan Sitorus
Published: December 2020

Komunikasi merupakan kegiatan untuk berinteraksi dan berhubungan satu sama lainnya. Aktivitas komunikasi dapat dilakukan ketika pelaku komunikasi saling memahami bahasa yang digunakan. Umumnya bahasa yang digunakan merupakan bahasa verbal. Namun bagi penderita tunarungu, sulit untuk berkomunikasi menggunakan bahasa verbal. Keberadaan bahasa isyarat dapat membantu komunikasi antara penderita tunarungu dengan sesama penderita tunarungu atau penderita tunarungu dengan orang normal atau sebaliknya. Kemajuan teknologi memungkinkan masyarakat yang sebelumnya tidak mengerti bahasa isyarat dapat belajar untuk mengenalinya melalui sebuah sistem penerjemahan. Adapun bahasa isyarat yang digunakan adalah sistem isyarat bahasa Indonesia (SIBI). Agar bahasa isyarat dapat diterjemahkan oleh sistem, maka dilakukan penelitian ini menggunakan metode jaringan saraf tiruan Generalized Learning Vector Quantization (GLVQ). Metode ini digunakan untuk mendapatkan bobot terbaik yang akan digunakan untuk mengenali pola huruf bahasa isyarat pada sistem.  Penggunaan metode GLVQ dalam sistem penerjemahan bahasa isyarat mendapatkan akurasi tertinggi pegujian data latih sebesar 68,32% dari 546 data dan akurasi pengujian data uji sebesar 71,37% dari 234 dengan menggunakan nilai alpha sebesar 0,9. Kata kunci: bahasa isyarat, citra, glvq, jaringan saraf tiruan.
KEANEKARAGAMAN KEPITING BIOLA (Uca spp.) DI EKOSISTEM MANGROVE DESA PASIR KABUPATEN MEMPAWAH KALIMANTAN BARAT
Authors: Actuti Niqki , S,S.i, M.S.i Apriansyah , Nurdiansyah Sy Irwan
Published: December 2020

Ekosistem  mangrove merupakan sumber daya pesisir memiliki habitat untuk berbagai jenis biota salah satunya kepiting biola. Kepiting biola (Uca spp.) adalah salah satu biota khas mangrove berperan penting dalam menjaga keseimbangan rantai makanan dan siklus nitrogen dalam ekosistem mangrove. Tujuan dari penelitian ini untuk Mengetahui keanekaragaman jenis Uca spp. yang berada di Desa Pasir. Penelitian ini menggunakan metode purposive bedasarkan skema atau jalur MMP yang berada di Desa Pasir, di buat 4 plot pengamatan. Hasil penelitian menunjukan bahwa terdapatnya 3 spesies Uca yaitu spesies dari Uca forcipata, U. dussuimeiri dan U. rosea, dengan keanekaragaman dan keseragaman rendah serta dominansi tinggi. Dominansi tertinggi terdapat pada plot 4 yang didominansi oleh Uca forcipata, sedangkan 3 plot lainnya tergolong sedang. Faktor yang mempengaruhi tinggi rendahnya indeks keanekaragaman, keseragaman dan dominansi yaitu kondisi lingkungan meliputi pH tanah, kondisi substrat, pasang surut dan vegetasi mangrove serta pengaruh aktivitas manusia.
AKTIVITAS AMILOLITIK MIKROFUNGI ENDOFIT SERASAH DAUN DAN DAUN MANGROVE AVICENNIA DI DESA SUNGAI BAKAU KECIL KABUPATEN MEMPAWAH
Authors: Retno Mayang Sari , S.Si., Apt., M.Si Warsidah , Sofiana Mega Sari Juane
Published: December 2020

Penelitian ini bertujuan untuk mendapatkan jenis mikrofungi endofit yang berpotensi memiliki aktivitas amilolitik dari serasah dan daun mangrove Avicennia. Mikrofungi endofit diisolasi pada media Potato Dextrose Agar diperoleh 42 isolat yang didominasi oleh isolat genus Aspergillus dan Penicillium. Skrining aktivitas amilolitik menggunakan media Glukosa, Yeast extract, Pepton, Starch Agar dan diuji dengan larutan iodin yang akan terbentuk zona bening pada media jika positif memiliki aktivitas amilolitik. Tujuh belas dari 42 isolat ditemukan memiliki aktivitas amilolitik. Kemampuan amilolitik yang paling besar didapat pada beberapa isolat berdasarkan zona beningnya, yaitu Fusarium ventrichosum, Aspergillus parasiticus, dan Oidiodendron cerealis.
Studi Batimetri dan Pasang Surut Di Kawasan Perairan Batu Burung Kota Singkawang Selatan Kalimantan Barat
Authors: Syamsudin Syam , Kushadiwijayanto Arie Antasari , Risko Risko
Published: December 2020

Pantai Batu Burung yang terletak di Desa Sedau Kota Singkawang Selatan Kalimantan Barat yang merupakan salah satu kawasan pariwisata, tempat mencari ikan, dan sarana transportasi air. Oleh sebab itu, informasi terkait kondisi hidrografi perairan ini sangat penting dalam menunjang aktivitas, pemanfaatan, dan pembangunan Pantai Batu Burung. Penelitian ini bertujuan untuk mengkaji kondisi kedalaman (batimetri) dan pasang surut. Survei lapangan dilakukan Batu Burung pada bulan Juni 2018. Pengukuran kedalaman dilakukan menggunakan Ecohosounder Garmin Gps Map 585, dan pasang surut menggunakan palm pasut selama 15 hari. Hasil pengukuran kedalaman menunjukkan bahwa kedalaman di Pantai Batu Burung memiliki kisaran sebesar 2-6 meter. Berdasarkan klasifikasi lereng, kondisi topografi di daerah ini termasuk dalam katagori landai. Tipe pasang surut di Pantai Batu Burung, berdasarkan bilangan formzahl adalah campuran condong harian ganda ( mixed mainly semi diurnal tides). Komponen pasang surut yang paling dominan adalah M2 dengan nilai amplitudo -0,29 m. Amplitudo komponen K1, O1, dan S2, secara berurutan adalah -0,24, 0,18 m dan 0,09 m.
Identifikasi dan Kepadatan Mikroplastik pada Sedimen di Mempawah Mangrove Park (MMP) Kabupaten Mempawah, Kalimantan Barat
Authors: Simamora Chinda Setia Lestari , Warsidah Warsidah , Nurdiansyah Syarif Irwan
Published: December 2020

Salah satu ekosistem mangrove yang diduga tercemar mikroplastik yaitu, Mempawah Mangrove Park (MMP) di Kabupaten Mempawah, Kalimantan Barat. Tujuan dari penelitian yaitu untuk mengetahui jenis dan kepadatan mikroplastik pada sedimen di Mempawah Mangrove Park (MMP), Kabupaten Mempawah, Kalimantan Barat. Hasil penelitian mendapatkan empat jenis mikroplastik, yaitu fiber, fragmen, film dan microbead. Mikroplastik memiliki kepadatan tertinggi pada stasiun I, diikuti oleh stasiun III, stasiun IV dan stasiun II. Identifikasi mikroplastik di Mempawah Mangrove Park (MMP) menunjukkan kedalaman 20-30 cm memiliki kepadatan mikroplastik lebih tinggi dibandingkan kedalaman 0-10 cm dan 10-20 cm. Uji Kruskal-Wallis yang telah dilakukan menunjukkan kepadatan jumlah mikroplastik antar stasiun dan kepadatan mikroplastik antar kedalaman tidak menunjukkan perbedaan yang signifikan (Asimpg. Sig. 0,059 > 0,05).
Fluorescence lifetime predicts performance of voltage sensitive fluorophores in cardiomyocytes and neurons
Authors: Boggess Steven , Lazzari-Dean Julia , Raliski Benjamin , Mun Dong Min , Li Amy , Miller Evan
Published: December 2020

Voltage imaging with fluorescent indicators offers a powerful complement to traditional electrode or Ca2+-imaging approaches for monitoring electrical activity. Small molecule fluorescent indicators present the unique opportunity for exquisite control over molecular structure, enabling detailed investigations of structure/function relationships. In this paper, we tune the conjugation between aniline donors and aromatic π systems within the context of photoinduced electron transfer (PeT) based voltage indicators. We describe the design and synthesis of four new voltage-sensitive fluorophores (VoltageFluors, or VFs). Three of these dyes have higher relative voltage sensitivities than the previously-reported indicator, VF2.1.Cl. We pair these new indicators with existing VFs to construct a library of voltage indicators with varying degrees of conjugation between the aniline nitrogen lone pair and the aromatic π system. Using a combination of steady-state and time-resolved fluorescence spectroscopy, cellular electrophysiology, fluorescence lifetime imaging microscopy (FLIM), and functional imaging in mammalian neurons and human cardiomyocytes, we establish a detailed link between the photophysical properties of VF dyes and their ability to report on membrane potential dynamics with high signal-to-noise. Anilines with intermediate degrees of conjugation to the aromatic π system experience intermediate rates of PeT and possess the highest absolute voltage sensitivities. Measured using FLIM in patch-clamped HEK cells, we find that the absolute voltage sensitivity of fluorescence lifetime (∆τfl per mV) provides the best predictor of dye performance in cellular systems.
In silico screening for natural ligands to non-structural nsp7 conformers of SARS coronaviruses
Authors: Blasco Rafael , Coll Julio
Published: December 2020

The non-structural protein 7 (nsp7) of Severe Acute Respiratory Syndrome (SARS) coronaviruses was selected as a new target to potentially interfere with viral replication. The nsp7s are uniquely conserved small coronavirus proteins having a critical, yet intriguing participation on the replication of the long viral RNA genome after complexing with nsp8 and nsp12. Drugs with potential to interfere with nsp7s have not been described yet. Despite the difficulties of having no previously defined binding pocket, high-throughput blind screening of more than one hundred thousand natural compounds < 400 Dalton of molecular weight docked against the nsp7.1ysy conformer identified hundreds of leads displaying predicted high binding-affinities by AutoDockVina. The leads were then docked to 14 nsp7 available conformers by two different binding scoring algorithms ( AutoDockVina-PyRx and HYDE-seeSAR), to identify consensus top-leads. Further predictive analysis of their physiological/toxicity ADMET criteria (chemical properties, adsorption, metabolism, toxicity) narrowed top-leads to a few drug-like ligands, most of them showing steroid-like structures closely related to some of those being actually used in clinical work. A final optimization by search for structural similarities to the drug-like top-lead, yielded a collection of novel steroid-like ligands with ~100-fold higher-affinity whose antiviral activity may be experimentally validated since they are available. Additionally, these nsp7-interacting ligands and/or their further optimized derivatives, may offer new tools to investigate the intriguing role of nsp7 on replication of coronaviruses
Zero-valent Palladium Single-Atoms Catalysts Confined in Black Phosphorus for Efficient Semi-hydrogenation
Authors: chen cheng , Wei Ou , Kahmeng Yam , Shibo Xi , Xiaoxu Zhao , Si Chen , Li Jing , Pin Lvy , Lu Ma , Haomin Xu , Wei Yu , Hanyan Fang , Chuanhao Yao , Xiao Hai , Koh Ming Joo , Ming Lin , Pennycook Stephen J. , Junling Lu , Yonghua Du , Chenliang Su , Chun Zhang , Lu Jiong
Published: December 2020

Single-atom catalysts (SACs) represent a new frontier in heterogeneous catalysis due to their remarkable catalytic properties and maximized atomic utilization. However, single atoms often bond to the support with polarized electron density and thus exhibit a high valence state, limiting their catalytic scopes in many chemical transformations. Here, we demonstrated that two-dimensional (2D) black phosphorus (BP) act as giant phosphorus (P) ligand to confine a high density of single atoms (eg, Pd1, Pt1) via atomic layer deposition. Unlike other 2D materials, BP with relatively low electronegativity and buckled structure favors the strong confinement of robust zero-valent palladium SACs in the vacancy site. Metallic Pd1/P SAC shows a highly selective semi-hydrogenation of phenylacetylene towards styrene, outperforming high-valence Pt1/P SAC, and also distinct from metallic Pd nanoparticles that facilitate the formation of fully hydrogenated products. Our DFT calculations reveal that Pd atom forms covalent-like bonding with adjacent P atoms, wherein H atoms tend to adsorb over electron-rich region for the subsequent hydrogenation. Zero-valent Pd in the confined space favors a larger energy gain for the synthesis of partially-hydrogenated product over the fully-hydrogenated one. Our work provides a new route towards the synthesis of zero-valent SACs on BP for a wide range of organic transformations.
Characterising Lithium-Ion Electrolytes via Operando Raman Microspectroscopy
Authors: Fawdon Jack , Ihli Johannes , La Mantia Fabio , Pasta Mauro
Published: December 2020

Knowledge of electrolyte transport and thermodynamic properties in Li-ion and ”beyond Li-ion” technologies is vital for their continued development and success. Here, we present a method for fully characterising electrolyte systems. By measuring the electrolyte concentration gradient over time via operando Raman microspectroscopy, in tandem with potentiostatic electrochemical impedance spectroscopy, the Fickian ”apparent” diffusion coefficient, transference number, thermodynamic factor, ionic conductivity and resistance of charge-transfer were quantified within a single experimental setup. Using lithium bis(fluorosulfonyl)imide (LiFSI) in tetraglyme (G4) as a model system, our study provides a visualisation of the electrolyte concentration gradient; a method for determining key electrolyte properties, and a necessary technique for correlating intermolecular electrolyte structure with the described transport and thermodynamic properties.
From Starphenes to Non-Benzenoid Linear Conjugated Polymers by Substrate Templating
Authors: Mohammed Mohammed S. G. , Lawrence James , García Fátima , Brandimarte Pedro , Berdonces-Layunta Alejandro , Pérez Dolores , Sánchez-Portal Daniel , Peña Diego , de Oteyza Dimas
Published: December 2020

Combining on-surface synthetic methods with the power of scanning tunneling microscopy to characterize novel materials at the single molecule level, we show how to steer the reactivity of one anthracene-based precursor towards different product nanostructures. Whereas using a two-dimensional Au(111) surface results in the dominant formation of a starphene derivative, the templating effect of a reconstructed Au(110) surface allows the selective growth of non-benzenoid linear conjugated polymers. We further assess the electronic properties of each of the observed product structures via tunneling spectroscopy and DFT calculations, altogether advancing in the synthesis and characterization of molecular structures of notable scientific interest that have been only scarcely investigated to date, as applied to both starphenes and to non-benzenoid conjugated polymers.
Heterocyclic Hypervalent Iodine(III) Compounds with Fused Benziodazole and Tetrazole Rings (I-Substituted Tetrazolo[1,5-b][1,2]Benziodazoles)
Authors: Kumar Rajesh , Sayala Kapil Dev , Lejla Camdzic Lejla , Siegler Maxime , Vaish Avichal , Tsarevsky Nicolay
Published: December 2020

A series of heterocyclic hypervalent (HV) iodine(III) compounds containing fused tetrazole and benziodazole rings, i.e., derivatives of benziodazolotetrazole (BIAT) with various ligands (L) attached to the iodine atom (BIAT-L) were prepared and studied. They were characterized by 1H and 13C NMR spectroscopy, ESI-HRMS, and X-ray crystallography. The thermal stabilities of all BIAT derivatives (L= Cl, OH, OAc, OMe) were studied and the degradation patterns as well as the enthalpies of degradation were measured by thermal gravimetric analysis coupled with differential scanning calorimetry. The reaction of various alkenes with BIAT-Cl in the presence of Cu(OTf)2 at room temperature yielded chloro-tetrazolylated products. The oxidation of thioanisole with BIAT-Cl under various reaction conditions is also reported.
One-Pot, Room-Temperature Conversion of CO2 into Porous Metal−Organic Frameworks
Authors: Kadota Kentaro , Hong You-Lee , Nishiyama Yusuke , Sivaniah Easan , Packwood Daniel , Horike Satoshi
Published: December 2020

We demonstrate the one-pot synthesis of highly porous crystalline metal−organic frameworks, [Zn4O(piperazine dicarbamate)3], an analogue of [Zn4O(1,4-benzenedicarboxylate)3] (MOF-5), directly from atmospheric pressure CO2 gas and piperazine derivatives at 25 °C. The structures showed high CO2 contents over 30 wt% and surface areas of 1270−2366 m2 g−1. We also show that the synthesis is feasible even by the use of 400 ppm of CO2.
Mapping the Space of Chemical Reactions using Attention-Based Neural Networks
Authors: Schwaller Philippe , Probst Daniel , Vaucher Alain C. , Nair Vishnu H , Kreutter David , Laino Teodoro , Reymond Jean-Louis
Published: December 2020

Organic reactions are usually assigned to classes grouping reactions with similar reagents and mechanisms. Reaction classes facilitate communication of complex concepts and efficient navigation through chemical reaction space. However, the classification process is a tedious task, requiring the identification of the corresponding reaction class template via annotation of the number of molecules in the reactions, the reaction center and the distinction between reactants and reagents. In this work, we show that transformer-based models can infer reaction classes from non-annotated, simple text-based representations of chemical reactions. Our best model reaches a classification accuracy of 98.2%. We also show that the learned representations can be used as reaction fingerprints which capture fine-grained differences between reaction classes better than traditional reaction fingerprints. The unprecedented insights into chemical reaction space enabled by our learned fingerprints is illustrated by an interactive reaction atlas providing visual clustering and similarity searching.

Code: https://github.com/rxn4chemistry/rxnfpTutorials: https://rxn4chemistry.github.io/rxnfp/Interactive reaction atlas: https://rxn4chemistry.github.io/rxnfp//tmaps/tmap_ft_10k.html
Identification and evaluation of osteoporosis diseases using X-Ray scan images
Authors: Vinaya B  , Akila C  , Dinesh Babu J  , Sravan Kumar P
Published: December 2020

This study aims to inaugurate the comparison among entire hip bone mineral density (RMD) by dual-energy X-ray absorptiometry (DEXA) and a humble clavicle radiogrammetry complete from the ribcage radiograph that provides the result of extraordinary sensitivity and specificity for forecasting full hip BMD from ribcage radiograph for assessment of osteoporosis. Clavicle Radiogrammetry is a method to measure morphometric dimensions like the other and inner diameter of the clavicle at its mid-shaft. Form these measurements; the following Bone Mass Indices are to be calculated, such as the cortical thickness and the Relative thickness. The Clavicle bone is separated from the digital chest X-ray. The Clavicle bone is identified and separated using Active Shape Model algorithm. After this, the morphometric measurements are done. The outcome of the study is whether the digitized chest X-ray analyzed is helpful in the evaluation of osteoporosis or not.
Study of anti-inflammatory and antiarthritic activities of aqueous and ethanolic plant extracts in animal models
Authors: Raja Sheker K  , Naveen B  , Anil Kumar A  , Abhilash G  , Akila CR
Published: December 2020

The tropical plant generally utilized in conventional Cameroonian medication to assuage and extravagance numerous pathologies. It is boundless in the western district where it is utilized to treat typhoid fever, gastrointestinal issues, and provocative ailments. Rheumatoid joint pain (RA) is a ceaseless, incapacitating, and dynamic immune system sickness in which incessant irritation aide saw with noteworthy bone annihilation and ligament obliteration bringing about critical joint harm and decreased usefulness. This pathology can develop rapidly in an individual and influence a few pieces of the body that become aggravated or amazingly agonizing, especially influencing the old, yet additionally people with a degenerative bone issue or insusceptible framework brokenness. This pathology, which can likewise happen because of the invulnerable framework assaulting the synovial layer, is joined by growing, solidness, torment, and a decrease or loss of joint capacity. The motivation behind this examination is to logically exhibit the mitigating and antiarthritic properties of the fluid and ethanolic concentrates of the shrubberies of Dissotis thollonii. The calming properties were assessed in vitro by restraint tests for cyclooxygenase, 5-lipoxygenase, protein denaturation, extracellular ROS creation, and cell expansion. In contrast, antiarthritic properties were assessed in vivo in rodents utilizing the zymosan An initiated monoarthritis examination and the CFA-prompted polyarthritis model.
Requirement of DNMT1 to orchestrate epigenomic reprogramming for NPM-ALK–driven lymphomagenesis
Authors: Redl Elisa , Sheibani-Tezerji Raheleh , Cardona Crhistian de Jesus , Hamminger Patricia , Timelthaler Gerald , Hassler Melanie Rosalia , Zrimšek Maša , Lagger Sabine , Dillinger Thomas , Hofbauer Lorena , Draganić Kristina , Tiefenbacher Andreas , Kothmayer Michael , Dietz Charles H , Ramsahoye Bernard H , Kenner Lukas , Bock Christoph , Seiser Christian , Ellmeier Wilfried , Schweikert Gabriele , Egger Gerda
Published: December 2020

Malignant transformation depends on genetic and epigenetic events that result in a burst of deregulated gene expression and chromatin changes. To dissect the sequence of events in this process, we used a T-cell–specific lymphoma model based on the human oncogenic nucleophosmin-anaplastic lymphoma kinase (NPM-ALK) translocation. We find that transformation of T cells shifts thymic cell populations to an undifferentiated immunophenotype, which occurs only after a period of latency, accompanied by induction of the MYC-NOTCH1 axis and deregulation of key epigenetic enzymes. We discover aberrant DNA methylation patterns, overlapping with regulatory regions, plus a high degree of epigenetic heterogeneity between individual tumors. In addition, ALK-positive tumors show a loss of associated methylation patterns of neighboring CpG sites. Notably, deletion of the maintenance DNA methyltransferase DNMT1 completely abrogates lymphomagenesis in this model, despite oncogenic signaling through NPM-ALK, suggesting that faithful maintenance of tumor-specific methylation through DNMT1 is essential for sustained proliferation and tumorigenesis.
SustainedHelicobacter pyloriinfection accelerates gastric dysplasia in a mouse model
Authors: O’Brien Valerie P , Koehne Amanda L , Dubrulle Julien , Rodriguez Armando E , Leverich Christina K , Kong V Paul , Campbell Jean S , Pierce Robert H , Goldenring James R , Choi Eunyoung , Salama Nina R
Published: December 2020

More than 80% of gastric cancer is attributable to stomach infection withHelicobacter pylori(Hp). Gastric preneoplastic progression involves sequential tissue changes, including loss of parietal cells, metaplasia and dysplasia. In transgenic mice, active KRAS expression recapitulates these tissue changes in the absence ofHpinfection. This model provides an experimental system to investigate additional roles ofHpin preneoplastic progression, beyond its known role in initiating inflammation. Tissue histology, gene expression, the immune cell repertoire, and metaplasia and dysplasia marker expression were assessed in KRAS+ mice +/−Hpinfection.Hp+/KRAS+ mice had severe T-cell infiltration and altered macrophage polarization; a different trajectory of metaplasia; more dysplastic glands; and greater proliferation of metaplastic and dysplastic glands. Eradication ofHpwith antibiotics, even after onset of metaplasia, prevented or reversed these tissue phenotypes. These results suggest that gastric preneoplastic progression differs betweenHp+ andHp− cases, and that sustainedHpinfection can promote the later stages of gastric preneoplastic progression.
MANAJEMEN SARANA PRASARANA KOMPLEKS STADION JALAK HARUPAT
Authors: Patradilaga Dadi Ginanjar , Munahat Yudha , Nuryadi Nuryadi
Published: December 2020

The research objective was to see the Management of Infrastructure for the Jalak Harupat Stadium Complex. The research subject is the Youth and Sports Agency (BPO). Officials of Dispora, and administrators of UPTD of the Jalak Harupat stadium complex in Bandung Regency, which represent 6 people, 3 administrators of Dispora and 3 administrators of UPTD. The data technique uses the method of observation, interviews, and documentation. The analysis technique uses the Miles and Huberman model, which is called an interactive data analysis technique where data analysis is carried out interactively and continuously until it is complete, so that the data is saturated. The research results are as follows; 1) the development of the Jalak Harupat stadium complex has not been running optimally 2) the Jalak Harupat stadium complex requires a maintenance budget 3) the mobility of supervision in the Jalak Harupat stadium complex is constrained. Based on the various existing problems, the role of the management of youth sports bodies and administrators of the UPTD of the Starling Harupat stadium is very much needed in solving this problem of infrastructure management.
HUBUNGAN DAYA LEDAK LENGAN DAN DAYA LEDAK TUNGKAI TERHADAP KEMAMPUAN SMASH BOLAVOLI
Authors: Kamadi La
Published: December 2020

The problem in this study is the relationship between the explosive power of the arms, the explosive power of the legs and hand eye coordination on the smash ability in the volleyball game of the students of FIK UNM. The population in this study were all students of FIK UNM sports coaching education with a total sample of 30 students who were selected by random sampling. The data analysis technique used is the correlation and regression analysis technique using the SPSS version 16 system at a significant level of 95% or α 0.05. Starting from the results of data analysis, this study concludes that: (1) The correlation between arm explosive power and smash ability in volleyball, proved to be r0 = 0.955 (P <α 0.05), (2) The relationship between limb explosive power and smash ability at volleyball game, proved to be r0 = 0.917 (P <α0.05), (3) The relationship between hand eye coordination and smash ability in volleyball games, proved to be R0 = 0.852 (P <α 0.05), (4) Relationship of arm explosive power , limb explosive power and hand eye coordination on smash ability in volleyball game proved to be r0 = 0.970 (P <α0.05). This can be explained that if a student is supported by good explosive power, leg explosive power and ankle coordination, the student can do a good smash too.