bluuebunny/crossref_metadata_2025 huggingface dataset:
A new water-soluble bactericidal agent for the treatment of polymicrobial infections
Authors: Presentato Alessandro , Piacenza Elena , Scurria Antonino , Albanese Lorenzo , Zabini Federica , Meneguzzo Francesco , Nuzzo Domenico , Pagliaro Mario , Martino Delia Chillura , Alduina Rosa , Ciriminna Rosaria
Published: August 2020

Grapefruit and lemon pectin obtained from the respective waste citrus peels via hydrodynamic cavitation in water only are powerful, broad-scope antimicrobial alternatives to antibiotics against Gram-negative and -positive pathogens. Dubbed IntegroPectin, these pectic polymers functionalized with citrus flavonoids and terpenes show superior antimicrobial activity when compared to commercial citrus pectin. Similarly to commercial pectin, lemon IntegroPectin determined ca. 3 log reduction of Staphylococcus aureus cells, while an enhanced activity of commercial citrus pectin was detected in the case of Pseudomonas aeruginosa cells with a minimal bactericidal concentration (MBC) of 15 mg mL-1. Although grapefruit and lemon IntegroPectin share equal MBC in the case of P. aeruginosa cells, grapefruit IntegroPectin shows boosted activity upon exposure of S. aureus cells with a 40 mg mL-1 biopolymer concentration being sufficient to achieve complete killing of the bacterial cells. Insight on the mechanism of action of these biocompatible antimicrobials and their effect on bacterial cells, at the morphological level, were obtained indirectly through Fourier Transform Infrared spectroscopy and directly through scanning electron microscopy. In the era of antimicrobial resistance, these results are of great societal and sanitary relevance as they open new avenues to develop innovative antimicrobials for the treatment of polymicrobial infections unlikely to develop drug resistance.
Legal Complexities of Entry, Rescue, Seizure and Disposal of Disaster Affected Companion Animals in New Zealand
Authors: Glassey Steve
Published: August 2020

With the increasing societal expectation that animals are afforded greater protection in emergencies, the legal process from entering a property to rescue a companion animal, through to how to dispose of such animals if they remain unclaimed has not been well examined in New Zealand. It is hypothesised that the legal framework for such response is flawed. In this study, each phase of animal disaster rescue is evaluated against four key statues that may apply in each phase, in that does any statute provide clear end to end provisions with clear legal authority to do so. The study found that all statutes evaluated contained flaws and that the current legal provisions are insufficient to provide clear authority for the sequential process of undertaking rescue of animals during emergencies. A major flaw was discovered in the Civil Defence Emergency Management Act 2002 a key statute, that provided for the seizure of property and animals but omitted a procedure for the disposal of such seized things leaving them all in legal limbo. It is recommended that animal disaster laws are updated to be more animal inclusive. The method also may be applicable to assist evaluating animal disaster management legal frameworks in other countries.
Perancangan Dan Implementasi Sistem Keamanan Jaringan Menggunakan Firewall dan Web Proxy Berbasis Mikrotik di SMA Negeri 1 Kota Sukabumi
Authors: Irawan Garry Tria , Djaohar Mochammad , M. Ficky Duskarnaen
Published: August 2020

Dengan diterapkannya program Cyber School di SMA Negeri 1 kota Sukabumi, maka pelayanan jaringan wajibditingkatkan. Pelayanan jaringan yang ada saat ini masih belum maksimal terutama pada bagian pemfilterandan keamanan jaringan. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem keamananjaringan menggunakan firewall dan web proxy berbasis Mikrotik. Penelitian yang dilakukan di SMA Negeri 1Kota Sukabumi bulan Oktober sampai dengan Desember 2014 ini menggunakan metode Research and Development. Membuat aturan firewall dan web proxy selanjutnya menkonfigurasikan aturan tersebut padarouter gateway dan pada tahap terakhir akan melakukan uji tes terhadap setiap aturan yang telah dibuat.Konfigurasi yang diterapkan akan menjatuhkan semua aktivitas paket data yang dianggap membahayakansejumlah port. Mem-blok paket data menuju router gateway dari jaringan lokal maupun jaringan internet selainadministrator. Mem-blok situs â€“ situs porno dan situs lainnya yang dianggap berbahaya. Hasil uji tes danscanning yang telah dilakukan didapatkan bahwa firewall dan web proxy telah berhasil mencatat alamat IPyang mencoba memasuki sistem kedalam address-list dan menolak koneksinya. Sehingga kesimpulannya,menerapkan aturan pada firewall dan web proxy telah dapat mengamankan jaringan dari serangan awalcracker.
Pengembangan Aplikasi Ujian Online Berbasis Website pada Mata Pelajaran Sistem Operasi Kelas X TKJ SMK Negeri 7 Jakarta
Authors: Tristianti Winda , Sastrawijaya Yuliatri , Wibowo Yunanto Prasetyo
Published: August 2020

Sistem Operasi merupakan mata pelajaran produktif wajib dasar yang harus dikuasai siswa program keahlian TKJ di SMK Negeri 7 Jakarta. Feedback yang cepat diperlukan untuk membantu siswa dapat menguasai mata pelajaran tersebut. Mata pelajaran Sistem Operasi memanfaatkan teknologi komputer dan internet dalam proses pembelajarannya. Teknologi tersebut dapat memberikan peluang mata pelajaran Sistem Operasi untuk berinovasi dalam proses evaluasi pembelajaran salah satunya adalah menggunakan aplikasi ujian online berbasis website. Tujuan dari penelitian ini adalah untuk menghasilkan aplikasi ujian online berbasis website pada mata pelajaran Sistem Operasi kelas X jurusan TKJ di SMK Negeri 7 Jakarta yang efektif dan efisien agar dapat digunakan sebagai alternatif evaluasi hasil belajar siswa. Metode penelitian yang digunakan adalah metode penelitian dan pengembangan. Metode pengembangan sistemnya menggunakan metode waterfall. Sistem yang dikembangkan menggunakan bahasa pemrograman PHP dan pengolah basis data MySQL. Website ujian online dapat diakses dengan alamat web www.ujiansmkn7jkt.com. Berdasarkan hasil pengujian sistem terhadap kebutuhan fungsional, diketahui bahwa seluruh fungsi berjalan dengan baik dan sesuai harapan. Pengembangan website ujian online telah melalui tahap evaluasi ahli materi, evaluasi ahli media dan uji coba yang dilakukan oleh seluruh siswa kelas X TKJ SMK Negeri 7 Jakarta. Berdasarkan hasil uji coba, kualitas aplikasi ujian online berbasis website yang telah dikembangkan menurut persepsi 28 siswa adalah 78.4% dari yang diharapkan (100%). Aplikasi ujian online berbasis website yang telah dikembangkan dapat dikatakan cukup baik sehingga dapat digunakan sebagai alternatif model penilaian hasil belajar mata pelajaran Sistem Operasi kelas X TKJ.
Penerapan Strategi PBL untuk Meningkatkan Hasil Belajar Siswa dalam Praktik Pemrograman Web Kelas X RPL di SMK Nasyrul Ulum Pandeglang
Authors: Maesyaroh  , Hanafi Ivan , Sastrawijaya Yuliatri
Published: August 2020

Penelitian ini bertujuan untuk meningkatkan hasil belajar siswa dalam praktik Pemrograman menggunakan strategi Problem Based Learning (PBL) pada siswa X RPL di SMK Nasyrul Ulum Pandeglang. Subjek penelitian ini adalah siswa kelas X RPL berjumlah 35 siswa. Penelitian tindakan kelas ini dilaksanakan dengan menggunakan model kemmis dan Mc. Taggart. Adapun prosedur penelitiannya merupakan siklus yang meliputi perencanaan (plan), tindakan (action), observasi (observe), dan refleksi (reflect). Hasil penelitian siklus I berkaitan dengan kemampuan membuat entri teks yang didalamnya terdapat input teks password, dan input multiline, siklus II berkaitan dengan kemampuan membuat entri pilihan yang didalamnya terdapat input file, radio, checkbox, select dan datalist, sedangkan pada siklus III berkaitan dengan kemampuan membuat style pada teks dan gambar. Dapat disimpulkan hasil belajar meningkat menjadi 100 % atau sebanyak 35 siswa yang memperoleh nilai KKM â‰¥ 76. strategi Problem Based Learning (PBL) pada siklus I pemantau tindakan guru mencapai 73,75 % untuk siswa yaitu 68,33 %, pada siklus II untuk pemantau tindakan guru mencapai 93,75 % sedangkan siswa 92 % dan pada siklus III pemantau tindakan guru mencapai 96, 25 % untuk siswa yaitu 95 %. Berdasarkan hasil penelitian tersebut diperoleh kesimpulan bahwa dengan menggunakan strategi Problem Based Learning (PBL) dapat meningkatkan hasil belajar siswa dalam praktik Pemrograman Web siswa kelas X RPL di SMK Nasyrul Ulum Pandeglang. Implikasi dari penelitian ini adalah bahwa strategi Problem Based Learning (PBL) dapat dijadikan salah satu cara untuk meningkatkan hasil belajar siswa dalam praktik Pemrograman Web siswa kelas X RPL.
Sistem Informasi Manajemen Keuangan Pada LPBB Bintang Solusi Mandiri
Authors: Rahayu Sri , Prasetya Adhi Bambang , Wibowo Yunanto Prasetyo
Published: August 2020

Sistem informasi manajemen keuangan adalah sistem informasi yang digunakan untuk melihat transaksi, laporan dan melakukan proses pencatatan transaksi baik pendapatan maupun pengeluaran yang dilakukan oleh user yang berbeda yaitu manajer keuangan, manajer cabang dan admin. Pembuatan laporan dapat dilakukan secara otomatis oleh sistem tanpa harus memindahkan daftar transaksi ke jurnal secara manual sehingga pembuatan laporan lebih efisien dalam penggunaan waktu dan tenaga. Sebab apabila jumlah pendapatan dan pengeluaran yang terjadi cukup banyak, akan membutuhkan waktu dan tenaga kerja yang banyak untuk melaksanakan pengelolaan pembuatan laporan tersebut. Untuk itu pihak pengelola harus dapat mengatasi masalah tersebut agar proses pengelolaan dapat berjalan dengan cepat dan lancar. Karya akhir ini disusun dengan tujuan peneliti ingin mengembangkan sistem informasi manajemen keuangan pada LPBB Bintang Solusi Mandiri. Proses pengembangan sistem informasi ini menggunakan database, dimana sistem informasi ini menggunakan metode rational unified process (RUP). Setelah sistem informasi berhasil dibangun sistem informasi manajemen keuangan tersebut siap digunakan dan pembutan laporan keuangan yang sebelumnya memerlukan waktu satu bulan dan tenaga serta konsentrasi, sedangkan dengan sistem informasi untuk membuat laporan keuangan hanya membutuhkan waktu kurang dari lima menit. Sistem informasi manajemen keuangan dapat diakses pada host client yang telah terinstall sistem informasi manajemen keuangan dan telah terkoneksi dengan server.
Perancangan Model Gore Menggunakan Metode Kaos untuk Proses Reverse Engineering Sistem Informasi
Authors: Arief Raharjo Hafiez , Widodo  , Ajie Hamidillah
Published: August 2020

Perubahan dan penambahan requirement pada suatu sistem aplikasi perangkat lunak membuat pengembangan pada sistem aplikasi terus dilkukan. Hal tersebut menyebabkan pentingnya dokumentasi requirement sistem dalam upaya pengembangan sistem lebih lanjut dan pemenuhan requirement yang diberikan oleh stakeholder. Penelitian ini bertujuan untuk merancangan model reverse engineering dengan menggunakan model Goal Oriented Requirement Engineering (GORE) dan metode Keep All Objectives Satisfied (KAOS) sebagai alat bantu untuk melakukan analisis dan penelusuran functional requirement pada sistem aplikasi perangkat lunak siap pakai. Hasil penelitian merupakan model reverse engineering dengan menggunakan model GORE dan metode KAOS dalam bentuk diagram yang menjelaskan tahapan untuk melakukan reverse engineering pada sistem aplikasi perangkat lunak. Tahapan reverse engineering dengan menggunakan model GORE dan metode KAOS tersebut, yaitu: (1) Mengambil main goal dari tampilan antarmuka sistem aplikasi (2) Merepresentasikan goal ke dalam parralellogram graph (3) Mengembangkan goal menjadi subgoal (4) Menentukan expectation dan obstacle berdasarkan goal (5) Menentukan agent yang terlibat dalam expectation dan goal (6) Merepresentasikan expectation dan goal yang merupakan suatu requirement. Model reverse engineering menggunakan model GORE dan metode KAOS berhasil diterapkan pada sampel aplikasi modul Mahasiswa siakad UNJ dan mendapatkan 125 functional requirement.
Kinerja Algoritma Canny untuk Mendeteksi Tepi dalam Mengidentifikasi Tulisan pada Citra Digital Meme
Authors: Filsa Nisfal , Widodo  , Prasetya Adhi Bambang
Published: August 2020

Citra digital Meme merupakan sarana penyampaian informasi, teks pada Meme sebagian besar akan bergabung dengan latar pada gambar. Untuk membedakan latar dan teks dapat dilakukan dengan deteksi Tepi. Algoritma Canny merupakan salah satu algoritma deteksi Tepi yang memiliki tingkat kesalahan yang minimum dan menghasilkan citra tepian yang optimal. Salah satu penggunaan deteksi Tepi dapat diterapkan citra digital Meme untuk menentukan wilayah teks yang terdapat pada citra Meme. Hasil algoritma Canny mendeteksi Tepi untuk menentukan wilayah tulisan pada Meme lalu diidentifkiasi menggunakan pengenalan karakter optis (OCR) akan dijadikan perhitungan untuk menilai kinerja algoritma deteksi Tepi Canny. Kinerja algoritma Canny mendeteksi Tepi untuk menentukan wilayah kandidat teks meningkatkan akurasi deteksi tulisan pada OCR (Object Character Recognition) dengan akurasi keberhasilan secara keseluruhan sebesar 65,47% dibandingkan dengan deteksi tulisan langsung menggunakan OCR sebesar 47,91%. Selain itu mengurangi tingkat kesalahan deteksi tulisan pada OCR dengan akurasi kesalahan secara keseluruhan yaitu kehilangan karakter sebesar 34,53% dan kelebihan karakter sebesar 35,98% dibandingkan deteksi tulisan langsung menggunakan OCR dengan akurasi kehilangan karakter sebesar 52,09% dan kelebihan karakter sebesar 52,62. Kinerja algoritma Canny mendeteksi wilayah kandidat teks pada OCR secara keseluruhan meningkatkan akurasi kebenaran dalam mendeteksi tulisan pada citra digital Meme dan mengurangi persentase kesalahan.
Bayes Classifier dan Support Vector Machine dalam Klasifikasi Judul Karya Akhir Mahasiswa Program Studi PTIK UNJ
Authors: Aziz Syahputro Razi , Widodo  , Ajie Hamidillah
Published: August 2020

Penelitian ini dilatarbelakangi dengan dibutuhkannya sistem pengklasifikasian untuk memudahkan pihak Jurusan Teknik Elektro khususnya Program Studi PTIK untuk mengklasifikasikan judul skripsi berdasarkan peminatan. Sebelum sistem dibuat diperlukan pertimbangan dari beberapa algoritma klasifikasi yang ada, maka dari itu penelitian ini memilih 3 algoritma dari 10 algoritma terbaik menurut ICDM tahun 2006. Klasifikasi terhadap dokumen teks pendek seperti judul skripsi mahasiswa memiliki kesulitan tersendiri daripada dokumen teks panjang karena semakin sedikit kata semakin sulit diklasifikasi. Sehingga tujuan dari penelitian ini adalah untuk mengetahui algoritma yang paling efektif untuk mengklasifikasi judul skripsi. Penelitian ini terdiri dari beberapa tahap yaitu pengumpulan data, pengelompokan data melalui angket oleh dosen ahli, pre-processing text, pembobotan kata menggunakan vector space model dan tf-idf, evaluasi dengan k-fold cross validation, klasifikasi menggunakan k-nearest neighbor, naïve bayes classifier, dan support vector machine, dan analisis dengan confusion matrix. Percobaan dilakukan dengan menggunakan 266 data judul skripsi mahasiswa PTIK UNJ dari angkatan 2010-2013, dengan data terakhir berasal dari sidang skripsi pada semester 105(semester ganjil 2016/2017). Hasil dari klasifikasi menggunakan algoritma tersebut didapatkan algoritma yang paling efisien yaitu support vector machine dengan akurasi 82% dari 10 kali percobaan.
Pengembangan Video Profile Pascasarjana Universitas Negeri Jakarta
Authors: Badrun Ubedilah , Prasetya Adhi Bambang
Published: August 2020

Di era keterbukaan dan era teknologi informasi, penting bagi sebuah kelembagaan untuk mensosialisasikan berbagai macam aktivitas dan fasilitas yang ada di lembaga tersebut. Hal ini juga berlaku bagi Pascasarjana Universitas Negeri Jakarta (UNJ). Informasi tentang aktivitas dan fasilitas Pascasarjana UNJ perlu disampaikan kepada masyarakat luas dalam rangka memperkenalkan terhadap publik maupun dalam rangka menarik mahasiswa. UU No. 14 tahun 2008 bahwa informasi merupakan kebutuhan pokok setiap orang bagi pengembangan pribadi dan lingkungan sosialnya, menyangkut hak asasi manusia dalam memperoleh informasi, serta mewujudkan ciri penting di dalam aspek negara yang demokratis.

Perkembangan ilmu pengetahuan dan informasi membuat berbagai aktivitas dan kehidupan sehari–hari tidak lepas dari informasi yang didapat baik dari media cetak maupun media elektronik. Peranan teknologi informasi dan multimedia juga tidak ketinggalan, berbagai informasi ditawarkan dengan bentuk multimedia yang dapat menciptakan presentasi interaktif dan informatif dengan mengkombinasikan teks, audio, video, animasi dan grafik yang digunakan untuk keunggulan bersaing. Pengenalan dunia pendidikan dengan teknologi informasi saat ini sangat diperlukan, karena sebagai sarana informasi untuk para calon mahasiswa program magister dan doktor mengetahui program studi di Pascasarjana UNJ. Informasi ini sangat dibutuhkan oleh calon mahasiswa program magister dan doktor yang akan menimba ilmu, selain itu video profil merupakan salah satu cara untuk sebuah institusi mempromosikan serta menjalin kerjasama dengan dunia luar.
Perancangan Sistem Pendaftaran Siswa Baru Labschool Jakarta Menggunakan Java Netbean
Authors: Wijiyatno Ilham
Published: August 2020

Tujuan perancangan aplikasi system pendaftaran siswa baru ini adalah agar Sistem Pendaftaran Siswa Baru Labschool Jakarta Menggunakan Java Netbean menjadi terkomputerisasi dan menyediakan interface yang dapat mempermudah tugas dalam mengolah data administrasi pendaftaran siswa-siswi baru Labschool Jakarta, dan agar pekerjaan dapat terselesaikan dengan cepat, tepat, akurat guna mengefisiensikan waktu. Metode yang digunakan dalam penelitian ini adalah menggunakan metode grounded research yaitu metodologi penelitian kualitatif yang menekankan penemuan teori dari data observasi empiric dilapangan dengan metode induktif (menemukan teori dari sejumlah data). Dalam penelitian jenis ini, peneliti langsung dating kelapangan tanpa membawa rancangan konseptual, proposisi, atau teori-teori tertentu seperti yang dilakukan pada penelitian kualitatif pada umumnya.
LeRoy Johnson at McGee Bend Reservoir (Lake Sam Rayburn) in 1956
Authors: Jelks Ed
Published: August 2020

McGee Bend was one of some 40 reservoir and dam projects in Texas where salvage archaeological excavations were carried out as part of the nationwide River Basin Surveys program administered by the Smithsonian Institution and the National Park Service between 1947 and 1968 (see Jelks 1965, 2006, 2014, 2017). In 1956, I rented an old vacant farmhouse for our McGee Bend field headquarters where our crew lived without indoor plumbing, and it was there that the photo of LeRoy Johnson bathing in a washtub was taken by one of our crew, Milburn Lathan (Figure 1).
The Ancestral Caddo Cemetery at the H. R. Taylor (41HS3) Site, Harrison County, Texas
Authors: Perttula Timothy
Published: August 2020

The H. R. Taylor site (41HS3) is an ancestral Caddo community cemetery in the lower reaches of the Big Cypress Creek basin in East Texas. The cemetery was used by Caddo peoples affiliated with the Late Caddo period Titus phase (ca. A.D. 1430-1680), probably between ca. A.D. 1600-1680, an archaeological construct. Its affiliation with a specific named Caddo group or tribe is not known, and by the early 18th century much of the Big Cypress Creek basin was not inhabited by Caddo peoples, or peoples of any other American Indian group. The H. R. Taylor site is one of more than 146 Titus phase cemeteries, both family and community in organization and scope, identified from archaeological investigations over the last 100 years of the region’s archaeological record and Titus phase mortuary practices.
Ensuring Requirements for Emissions of Harmful Substances of Diesel Engines
Authors: Kuharonak G. M. , Kapskiy D. V. , Berezun V. I.
Published: August 2020

The purpose of this work is to consider the requirements for emissions of harmful substances of diesel engines by selecting design and adjustment parameters that determine the organization of the workflow, and the exhaust gas cleaning system, taking into account the reduction of fuel consumption. Design elements and geometric characteristics of structures for a turbocharged diesel engine of Д-245 series produced by JSC HMC Minsk Motor Plant (4ЧН11/12.5) with a capacity of 90 kW equipped with an electronically controlled battery fuel injection have been developed: exhaust gas recirculation along the high pressure circuit, shape and dimensions of the combustion chamber, the number and angular arrangement of the nozzle openings in a nozzle atomizer, and inlet channels of the cylinder head. Methods for organizing a workflow are proposed that take into account the shape of the indicator diagrams and affect the emissions of nitrogen oxides and dispersed particles differently. Their implementation allows us to determine the boundary ranges of changes in the control parameters of the fuel supply and exhaust gas recirculation systems when determining the area of minimizing the specific effective fuel consumption and the range of studies for the environmental performance of a diesel engine. The paper presents results of the study on the ways to meet  the requirements for emissions of harmful substances, obtained by considering options for the organization of working processes, taking into account the reduction in specific effective fuel consumption, changes in the average temperature of the exhaust gases and diesel equipment. To evaluate these methods, the following indicators have been identified: changes in specific fuel consumption and average temperature of the toxicity cycle relative to the base cycle, the necessary degree of conversion of the purification system for dispersed particles and NOx. Recommendations are given on choosing a diesel engine to meet Stage 4 emission standards for nitrogen oxides and dispersed particles.
Bases metodológicas de la medición de desarrollo infantil temprano en la Ensanut 100k
Authors: De Castro Filipa , Rojas-Martínez Rosalba , Villalobos Aremis , Shamah Teresa , Vázquez-Salas Ruth Argelia , Armendares Nathalie , Allen-Leigh Betania , Escamilla Alberto , Romero Martin
Published: August 2020

Objetivo. Presentar los métodos realizados para la inclu­sión del módulo de Desarrollo Infantil Temprano (DIT) en la Ensanut 100k. Material y métodos. Con dicho módulo y el cuestionario de menores de cinco años, se obtuvieron indicadores del estado de salud, desarrollo y bienestar de niñas/os en los primeros cinco años de vida. De noviembre a diciembre de 2017, se definió el diseño de la muestra, instrumentos y manuales, y se realizó una prueba piloto. Se capacitó y estandarizó al personal de campo. El levantamiento de información se realizó entre enero y junio de 2018. Re­sultados. Se estudió en el módulo DIT de la encuesta a 3 892 niños/as de 0 a 59 meses de edad. Conclusiones. La capacitación y estandarización del personal de campo, por parte de personal capacitado y estandarizado, minimiza los sesgos de información.
Factores clínicos y demográficos asociados con la mortalidad por dengue en Colombia: estudio de casos y controles
Authors: Pimentel Juan , Zuluaga Germán , Borrero Elizabeth , Andersson Neil
Published: August 2020

Objetivo. Identificar factores demográficos y clínicos asociados con la mortalidad por dengue grave en cinco de­partamentos de Colombia. Material y métodos. Análisis secundario de un estudio de casos y controles basado en pa­cientes admitidos de 2009 a 2013. Los casos fueron pacientes que murieron por dengue y los controles fueron pacientes con dengue grave sobrevivientes a la enfermedad. Se utilizó el procedimiento de Mantel-Haenszel para identificar los factores. Resultados. Analizando 58 casos y 121 controles, cuatro factores fueron asociados con la mortalidad por den­gue: administración hospitalaria de dipirona (RMa=6.38 IC95% 2.41-16.86) y de acetaminofén (RMa=0.25 IC95% 0.10-0.61), presencia de comorbilidad (RMa=3.52 IC95% 1.51-8.18) y consulta previa por el mismo padecimiento (RMa=3.99 IC95% 1.63-9.77). Conclusiones. La administración de dipirona en pacientes con dengue grave se asoció con un aumento del riesgo de mortalidad. Si se considera que la dipirona fue retirada del mercado en 20 países por sus efectos secunda­rios, se puede desaconsejar su uso en el manejo del dengue
¿Qué deberá buscar la regulación de dispositivos de vapeo?: un punto de vista neumológico
Authors: Sánchez-Ríos Carla Paola
Published: August 2020

No disponible
Exposición laboral a Covid-19 en personal de salud
Authors: Medina-Guillen Leonardo Flavio
Published: August 2020

No disponible
Legends of Artificial Lift (2020)
Authors: JPT staff _
Published: August 2020

The SPE Artificial Lift Conference and Exhibition-Americas will be held 25-27 August 2020 in The Woodlands, Texas. The event, an opportunity for energy professionals to gain insights into current trends, grow their networks and connect with leaders, understand field experiences, and explore innovative solutions, will feature a special Legends of Artificial Lift Luncheon. This year, the two individuals who have made outstanding contributions to the field of artificial lift technology are John C. Patterson and Orvel. L. Rowlan.

John C. Patterson

John C. Patterson is hailed throughout the energy industry as a foremost authority on artificial lift, having authored nine technical papers for SPE and holding six patents on artificial lift and facility concepts.

Since joining SPE in 1974, Patterson has primarily been focused on the Production and Operations and Completions disciplines. He served on the 2013 SPE Artificial Lift Forum program committee and both the ALCE-NA ESP and Sucker Rod Pump subcommittees in 2014.

Patterson has been active with the SPE Electrical Submersible Pump (ESP) workshop, in the capacity of chairman for the workshop in 2013 and for 10 years as continuing education director. He has also taught attendees about ESP dismantle, inspection, and failure analysis.

Orvel L. Rowlan

With more than 39 years of service to the oil and gas industry, Orvel L. Rowlan has long been recognized for his many advancements in the area of artificial lift.

Rowlan has authored 14 SPE technical papers and more than 80 research papers for the Southwestern Petroleum Short Course, the Solution Mining Research Institute, the Artificial Lift Research and Development Council, Russian Oil & Gas Technologies magazine, the Canadian Petroleum Society, and SPE.

He holds a US patent on plunger lift analysis and coauthored Gas Well Deliquification, a book for gas well production optimization.
Tectonically Influenced Regions See Complex Stress States, Casing Failures
Authors: Carpenter Chris
Published: August 2020

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 199710, “The Unconventional Unconventionals: Tectonically Influenced Regions, Stress States, and Casing Failures,” by A. Casero, SPE, and M. Rylance, SPE, BP, prepared for the 2020 SPE Hydraulic Fracturing Technology Conference, The Woodlands, Texas, 4-6 February. The paper has not been peer reviewed.

In tectonically influenced regions, potential hydrocarbon traps are subject to complex states of stress. This scenario often translates into severe strike/slip (SS) and thrust-fault or reverse-fault (TF/RF) stress states. The complete paper demonstrates that such complex stress states will affect well completions and hydraulic fracturing directly in a multitude of ways but that, often, some of the more influential consequences are severe casing failures, production-liner restrictions, and complex-fracture-initiation scenarios. Unconventional-resource development in such environments requires that a renewed focus be made in all phases of well design and construction.

Well Integrity

Distinguishing clearly between the two separate issues of well-integrity loss and reservoir-accessibility loss is critical when the presence of casing deformation or failure is considered. When describing casing deformation or failure, it is important to understand that not all of these failures are associated with a loss of well integrity. This is particularly true of any casing failure or deformation within the productive target formation because the target formation is fully outside the primary well barrier envelope.

In the complete paper, the authors refer only to those casing deformations and failures across and within the target productive intervals. Therefore, even if casing deformation results in loss of pressure integrity or partial or complete casing separation as a result of the event itself or because of the remedial actions implemented, this will not compromise actual well integrity. Consider that if the casing deformation occurs in a section that would or could normally be completed with perforations or fracturing, then the casing deformation is outside the primary wellbore barrier.

When such casing deformation occurs in the target area, well accessibility will be affected with regard to time, economics, and production but without health, safety, or environmental consequences. The operational effect can be significant up to and including a total loss of the well and a need to redrill through abandonment or sidetracking and is, therefore, a probabilistic part of development economics. The occurrence of extreme casing deformation within the primary well barrier envelope is extremely rare. Regardless, occurrence of such an event is treated as a major incident and involves all necessary regulatory bodies.
H2 Economy: Hype, Horizon, or Here?
Authors: Feder Judy
Published: August 2020

Clean-burning hydrogen (H2) - and scenarios for a future economy powered by it - is big news at the moment. This is no surprise, given the current environment of low demand for oil, growing unease over greenhouse gas emissions, and projections that post-pandemic stimulus measures could do for hydrogen what stimulus measures after the 2008 financial crisis did for solar power. Oil and gas majors have spent tens of millions of dollars on pilot projects, as have other industrial giants. Germany, which has allocated $10 billion to its nascent hydrogen industry, is one of a growing number of governments whose spending to satisfy climate commitments while restarting their economies could provide a major funding kickstart.

But for the moment, most analysts agree that the future for a hydrogen economy is still uncertain and that the biggest obstacles to scaling will be costs, technology scaleup, and policy.

H2 101 - From Feedstock to Fuel

Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all mass. Today approximately 3% of global energy consumption is used to produce hydrogen, at a rate of more than 110 million tons per year, according to BloombergNEF (BNEF). So, hydrogen production is already a large and thriving industry. Yet, according to the Hydrogen Council, only 0.002% of currently produced hydrogen is used as fuel. Some 90% is used for ammonia production, petroleum refining, and methanol production.

DNV GL, in a recent report on hydrogen as an energy carrier, describes hydrogen as a unique zero-emission energy carrier that can be converted to electrical energy in a fuel cell two to three times more efficiently than in a combustion engine. Hydrogen as an energy carrier can exist in a variety of forms and can be converted from one form to another, while energy sources such as oil and gas are the original resource from which the energy carrier is produced. Hydrogen can be used as fuel for mobility and heating in buildings; to decarbonize industrial processes; and as price support and storage for excess electricity during periods when production output from renewables alone exceeds demand.

BNEF reports in its Hydrogen Economy Outlook that deploying clean hydrogen in the coming decades could reduce up to 34% of global greenhouse gas emissions from fossil fuels and industry at manageable cost. Renewable hydrogen could be produced for $0.70 to $1.60/kg in most parts of the world before 2050 - the equivalent of gas priced at $6-$12/MMBtu, making it competitive with current natural gas prices in Brazil, China, India, Germany, and Scandinavia on an energy-equivalent basis.
Technology Focus: Formation Evaluation (August 2020)
Authors: Ma Shouxiang (Mark)
Published: August 2020

A century after the 1918 flu pandemic, much of the world in early 2020 was experiencing the COVID-19 pandemic lockdown except a few places such as parts of Northern Europe. The reduced global demand for oil was one of the main reasons that the May futures contract for West Texas Intermediate crude fell to an unbelievable low level in late April. It was indeed an unprecedented historical moment. What has this to do with petroleum engineering in general and formation evaluation in particular? A lot.

In the short term, universities would experience significantly reduced enrollments in petroleum engineering and probably geoscience majors. The industry is quickly losing experienced hands and subject-matter experts; thus, activities in innovation and new technology development would suffer. Consequently, limited numbers of professionals and fewer new business impact solutions would be available when needed in the near future when the business comes back. Therefore, we must have a longer-term vision for business planning, balancing short-term challenges with long-term perspectives. This is especially true for professional retention and development.

Individually and collectively, we are currently facing undeniable difficult times. But, as has been said, challenges are also opportunities. It is a proper time for all of us to pause a bit and formulate way-forward plans that suit our needs. It is surely a good time to recharge ourselves with newly emerging skills to meet the anticipated future needs through various resources such as online training and webinars offered by service providers or from professional societies such as SPE.

In any case, oil will still be an irreplaceable resource that the world needs in the foreseeable future, and formation evaluation is a critical subject-matter area that the industry cannot exist without - from resources exploration, to field development, to production, all the way to abandonment.

We should sharpen our tools when we can so we will not be regretful when the time of needs comes.
Preparedness Holds Key to Management of Infectious Diseases Offshore
Authors: Carpenter Chris
Published: August 2020

This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 199458, “Management of Infectious Diseases Offshore,” by Salwan Ibrahim, International SOS, and Andry Nowosiwsky, ExxonMobil, prepared for the 2020 SPE International Conference and Exhibition on Health, Safety, Environment, and Sustainability, originally scheduled to be held in Bogota, Colombia, 28-30 July. The paper has not been peer reviewed.

International SOS has led medical services operations on offshore installations globally and has managed clinical cases in which patients presented with signs and symptoms of known infectious illnesses. In a recent example, three cases of mumps were identified among the work force on an operating oil and gas rig offshore Guyana. The complete paper describes the recommended steps that were followed in the management of the cases. The authors consider these steps to be best practices in infectious disease management on offshore installations.

Disease Overview

Mumps is a viral infection best known for the swelling of the cheeks and jaw seen in patients, a result of infection of the salivary glands. When mumps affects adults, it can lead to complications such as meningitis (inflammation of the lining of the brain and spinal cord) and orchitis (inflammation of the testicles). Initial symptoms include headache, muscle pain, low-grade fever, and malaise. Soon after, painful swelling of the glands in the cheeks and jaw occurs. There is no specific treatment for mumps. It is generally a mild, self-limiting disease that requires only symptomatic management.
Burnout level and associated factors in a Sub-Saharan African medical setting: prospective cross-sectional survey.
Authors: MACKANGA Jean-Rodolphe , MOULOUNGUI Emeline Gracia MOUENDOU , IBA-BA Josaphat , POTTIER Pierre , KOMBILA Jean-Baptiste MOUSSAVOU , BOGUIKOUMA Jean Bruno
Published: August 2020

Background: burnout in the hospital environment is a problem that affects care and training. Often explored in the high-income medical context, burnout is poorly studied in low and middle-income countries characterized by a precarious hospital situation and a high stake linked to the Millennium Development Goals. The aim of our study was to determine in medical practitioners, in a sub-Saharan African country’s medical context, the burnout level and associated factors. Methods: a prospective cross-sectional study by using a self-administered Likert-scale questionnaire addressed to doctors and doctoral medical students in Gabon. Maslach Burnout Inventory scale has been used. Burnout symptoms were defined by high level in at least one of the 3 dimensions. Severe burnout defined by high level in all dimensions. Explored factors: socio-demographic and psychometric. Multiple logistic regression has been performed. Results: among 104 participants, severe burnout prevailed at 1.9% (95% CI: 0.2% -6.8%) and burnout symptoms at 34.6% (95% CI: 25, 6% -44.6%). The associated factors with burnout symptoms: age (OR = 0.86, p = 0.004), clinical activity in a university hospital center (OR = 5.19, p = 0.006), the easy access to the hospital (OR = 0.59, p = 0.012), number of elderly dependents living with the practitioner (OR = 0.54, p = 0.012), place of residence (same borough where the hospital is located: OR = 4.09, p = 0.039) and to be favorable to traditional medicine (OR = 1.82, p = 0.087). Nagelkerke’s R-squared:53.1%. Conclusion: in Gabon, middle-income country, almost one practitioner in two has burnout symptoms. The young age, the university hospital center, the difficulty to access to hospital and to live in the borough where the hospital is located increase the probability of burnout symptoms. These results must put question to relevant authorities regarding health and medical education, to set up: a public transport for practitioners, an optimal primary health care system, a regulation of medical tasks in hospitals, a training in clinical supervision.
Knowledge of malaria prevention and control methods and associated factors among rural households in West Belessa district, North West Ethiopia, 2019.
Authors: Aragie Tsigie Baye
Published: August 2020

Background: In Ethiopia malaria is one of the top ten leading causes of morbidity and mortality. Community knowledge of prevention and control methods had been proven to play an important role in the implementation of effective and sustainable interventions against malaria. This information is limited in the study area. This study aimed to assess knowledge of malaria prevention and control methods and its associated factors among households in West Belessa district, 2019.Methods: Community-based cross-sectional mixed quantitative and qualitative study was conducted from April to June 2019 in West Belessa district, North West Ethiopia. Multistage sampling was used to select an estimated 770 sample size. A structured questionnaire was used for the quantitative component and semi-structured questionnaire for the qualitative component. Quantitative data were collected by interviewing and qualitative data using focus group discussion (FGD). Quantitative data was coded and entered using Epi info software version 7 then exported to SPSS version 20 for analysis. The binary logistic regression model was fitted to identify the associated factors. Odds Ratio (OR) with 95 % Confidence Interval (CI) was used to assess the strength of association. The qualitative data was transcribed manually using the thematic approach.Result: A total of 770 subjects were included in this study with a 99.5% response rate. Of the total respondents, 75.6% had good knowledge of malaria prevention methods. LLINs and IRS were mentioned by 84.7% and 83.7% respectively. Poorest wealth quintiles [AOR= 0.40, 95% CI: 0.23, 0.73], poor wealth quintiles [AOR= 0.38, 95% CI: 0.21, 0.70], and medium wealth quintiles [AOR= 0.41, 95% CI: 0.22, 0.76], living in Menti Kebele [AOR= 3.07, 95% CI 1.85, 5.08], living in Abay tera kebele [AOR= 2.00, 95% CI 1.21, 3.29] were significantly associated with good knowledge. About all of the focused group discussion (FGD) participants agreed that malaria is a preventable disease and mentioned some of the preventive methods.Conclusion: Overall there was relatively high knowledge of malaria prevention and control methods. LLINs and IRS were known malaria prevention methods in West Belessa. Wealth index and respondents living kebele are predictors for knowledge of malaria prevention.
WITHDRAWN: Exploring the Effectiveness of Convolutional Neural Network with Ensemble Technique
Authors: Ghosh Monalisha , Sanyal Goutam
Published: August 2020

Sentiment Analysis has recently been considered as the most active research field in the natural language processing (NLP) domain. Deep Learning is a subset of the large family of Machine Learning and becoming a growing trend due to its automatic learning capability with impressive consequences across different NLP tasks. Hence, a fusion-based Machine Learning framework has been attempted by merging the Traditional Machine Learning method with Deep Learning techniques to tackle the challenge of sentiment prediction for a massive amount of unstructured review dataset. The proposed architecture aims to utilize the Convolutional Neural Network (CNN) with a backpropagation algorithm to extract embedded feature vectors from the top hidden layer. Thereafter, these vectors augmented to an optimized feature set generated from binary particle swarm optimization (BPSO) method. Finally, a traditional SVM classifier is trained with these extended features set to determine the optimal hyper-plane for separating two classes of review datasets. The evaluation of this research work has been carried out on two benchmark movie review datasets IMDB, SST2. Experimental results with comparative studies based on performance accuracy and F-score value are reported to highlight the benefits of the developed frameworks.
The role of antibiotic-loaded bone cement in complicated knee arthroplasty: relevance of gentamicin allergy and benefit from revision surgery, a case control follow-up study and algorithmic approach
Authors: Thomas Benjamin , Benedikt Maria , Alamri Ali , Kapp Florian , Bader Rainer , Summer Burkhard , Thomas Peter , Oppel Eva
Published: August 2020

Background

Antibiotic-loaded (particularly gentamicin) bone cement (BC) is widely used in total joint arthroplasty (TJA) to prevent periprosthetic infections (PPIs), but may itself cause implant failure. In light of a complete lack in literature, the objective was to assess the clinical relevance of gentamicin allergy for failure of cemented total knee arthroplasties in 25 out of 250 patients with positive patch test reactions to gentamicin and otherwise unexplained symptoms by evaluating benefits from revision with change to gentamicin-free cement.

Methods

15 of these 25 patients and their treating orthopaedic surgeons agreed to a re-assessment. They were surveyed regarding interim course of therapy and symptoms, including re-assessment of the Knee Injury and Osteoarthritis Outcome Score (KOOS), and underwent follow-up clinical and radiographic investigations. The initial use of gentamicin-loaded BC was reaffirmed by review of the primary implantation operative reports and respective implant passports. Primary and follow-up KOOS scores were analyzed regarding benefits from revision surgery by comparing nine patients with revision to six without revision.

Results

Mean follow-up time was 38 months. The entirety of patients experienced an improvement of self-reported symptoms, with revision surgery (i.e. switching to gentamicin-free BC or uncemented total knee arthroplasty) yielding significantly greater improvement (p=0.031): the nine revised patients reported a significant symptom relief (p=0.028), contrary to the six unrevised patients (p=0.14). Interestingly, the decision to proceed with revision surgery was significantly correlated with higher symptom severity (p=0.05).

Conclusion

In symptomatic total knee arthroplasty with gentamicin allergy, uncemented revision arthroplasty or change to gentamicin-free BC provides significant symptom relief.
Factors influencing the length of hospital stay during the intensive phase of multidrug-resistant tuberculosis treatment at Amhara Regional State hospitals, Ethiopia: A retrospective follow up study
Authors: Tamirat koku Sisay , Andargie Gashaw , Babel Yaregal Animut
Published: August 2020

Background: The length of hospital stay is the duration of hospitalization, which reflects disease severity and resource utilization indirectly. Generally, tuberculosis is considered an ambulatory disease that could be treated at DOTs clinics; however, admission remains an essential component for patients' clinical stabilization. Hence, this study aimed to identify factors influencing hospital stay length during the intensive phase of multidrug-resistant tuberculosis treatment.Methods: A retrospective follow-up study was conducted at three hospitals, namely the University of Gondar comprehensive specialized, Borumeda, and Debremarkos referral hospitals from September 2010 to December 2016 (n=432). Data extracted from hospital admission/discharge logbooks and individual patient medical charts. A binary logistic regression analysis was used to identify factors associated with more extended hospital stays during the intensive phase of multidrug-resistant tuberculosis treatment.Result: Most patients (93.5%) had a pulmonary form of multidrug-resistant tuberculosis and 26.2% had /TB/HIV co-infections. The median length of hospital stays was 62 (interquartile range from 36 to 100) days. The pulmonary form of tuberculosis (Adjusted odds ratio [AOR], 3.47, 95% confidence interval [CI]; 1.31 to 9.16), bedridden functional status (AOR= 2.88, 95%CI; 1.29 to 6.43), and adverse drug effects (AOR=2.11, 95%CI; 1.35 to 3.30) were factors associated with extended hospital stays.Conclusion: This study revealed that the length of hospital-stay differed significantly between the hospitals. The pulmonary form of tuberculosis decreased functional status at admission and reported adverse drug reactions were determinants of more extended hospital stays. These underscore the importance of early case detection and prompt treatment of adverse drug effects.