bluuebunny/crossref_metadata_2025 huggingface dataset:
Sources on the politics of Judaea in the 50s CE: a response to Martin Goodman
Authors: Tomson Peter J.
Published: September 2017

Martin Goodman argues that Josephus’ presentation of 6–66 CE Judaea as a place of growing tensions leading to war with Rome copies Thucydides and is contradicted by his own evidence. This theory is countered at several levels. First, Josephus’
Jewish War
does not imitate Thucydides’ 50-year pre-war period. Second, while
Jewish War
blames the war on the insignificant philosophy of Judas the Galilean and incompetent equestrian governors,
Antiquities
portrays Judas’s movement as a much more dangerous reaction against imperial policy. Third, Paul’s letters to the Galatians and Romans and the Acts of the Apostles reflect a process of increasing pressure in Judaea for Gentile Christians to accept circumcision and Jewish law. This phenomenon is reminiscent of the Hasmonean ‘politics of circumcision’ and is also evidenced in some ‘zealot’ interventions at the beginning of the war recorded by Josephus. Hence during the 50s CE, Judaea did see tensions with Gentiles rising.
The Jewish elite of Sepphoris in late antiquity: indications from burial inscriptions
Authors: Ashkenazi Jacob , Aviam Mordechai
Published: September 2017

The inscriptions from the cemeteries of Sepphoris serve as a vivid reflection of Jewish life and culture in this vibrant city of late antique Palestine. Two of these burial inscriptions are studied in this article: a bilingual inscription (Greek and Aramaic) and a Greek inscription that was uncovered more than a century ago and mistakenly read as a dedicatory inscription from an unexcavated synagogue. Reading the first one and rereading the second introduces us to senior Jewish officials in the Roman provincial and imperial administration. It affords us a unique glance into the social and cultural background of the Jewish elite of Sepphoris at the turn of the fourth–fifth centuries, at a time when the Christianization of the Roman administration had accelerated and Jews were forced once again to deal with questions of identity and introspection.
Between convention and innovation: a study of thematic and literary features of three Sedarim for Wayyosha of the tenth and eleventh centuries
Authors: van Bekkum Wout , Katsumata Naoya
Published: September 2017

This article is based on the edition and study of three lengthy compositions for the Seventh Day of Passover (Wayyosha – Exod. 14:30). These compositions are outstanding in length and show parallel characteristics in structure and content. Recent publications of these three Sedarim offer introductions to structural characteristics and describe ways of inserting all the opening words from Canticles, Exodus 15 and Judges 5. Now that we have these poems at our disposal, we address questions about the place and time of their emergence and use. We analyse these compositions within one context, and discover interesting fusions of motifs and themes, which are at times taken from rabbinic sources or otherwise invented by the composers themselves. Three text samples from the same two stanzas demonstrate the various levels of connection. We believe that local or regional custom was involved in writing this poetry within a restricted period of time.
Pengaruh Variasi Waktu Penguapan Terhadap Kinerja Membran Selulosa Asetat pada Proses Ultrafiltrasi
Authors: Amiyati Dewi Rara , Indarti Dwi , Muflihah Yeni Maulidah
Published: September 2017

Penelitian ini mempelajari pengaruh variasi waktu penguapan terhadap kinerja membran selulosa asetat. Pada proses ultrafiltrasi, selulosa asetat dibuat dengan menambahkan polietilen glikol (PEG) sebagai agen pembentuk pori membran dan meningkatkan nilai fluks membran. Pembuatan membran selulosa asetat dilakukan dengan metode inversi fasa. Variasi waktu penguapan yang digunakan selama 0, 1, 3, dan 5 menit. Membran selulosa asetat yang terbentuk dikarakterisasi meliputi uji porositas, fluks dan rejeksi. Hasil penelitian menunjukkan waktu penguapan selama 5 menit menghasilkan membran yang lebih rapat. Hasil pengukuran porositas, fluks dan rejeksi terhadap dekstran 500 kDa berturut-turut sebagai berikut: 53,35%; 4,078 (L/jam.m2) dan 92,917%.

Kata Kunci: Porositas, Selulosa Asetat,Waktu Penguapan.
Penerapan Algoritma Winnowing Pada Sistem Rekomendasi Penentuan Dosen Pembimbing Skripsi (Studi Kasus Program Studi Sistem Informasi)
Authors: Jarwati J. , Prihandoko Antonius Cahya , Yulia R Windy Eka
Published: September 2017

Sistem rekomendasi penentuan dosen pembimbing tugas akhir menggunakan algoritma winnowing merupakan sistem yang bertujuan untuk membantu komisi bimbingan menentukan dosen pembimbing. Rekomendasi yang dihasilkan berupa nama dosen yang memenuhi syarat untuk menjadi dosen pembimbing sesuai dengan aturan yang ada pada Program Studi Sistem Informasi. Sistem ini berisikan daftar dosen program studi sistem informasi dan kata kunci penelitian yang pernah dilakukan dosen. Algoritma winnowing digunakan untuk mencari dan menghitung jumlah kata yang sama dalam setiap kata kunci yang dibandingkan. Setiap rekomendasi yang dihasilkan berdasar pada jumlah kesamaan antara kata kunci yang dibandingkan dalam bentuk persentase yang diurutkan dari persentase tertinggi sampai dengan terendah. Sistem rekomendasi ini dibangun berbasis website agar dapat digunakan dengan mudah oleh komisi bimbingan, akademik dan dosen. Algoritma winnowing dipilih karena memiliki keunggulan yakni dapat menangani permasalahan pencocokan string yang bervariasi serta waktu komputasi yang cepat. Pembuatan sistem ini dibangun mengadopsi dari model Waterfall. Sistem rekomendasi penentuan dosen pembimbing ini dirancang dan dibangun dengan 3 (tiga) hak akses, yaitu akademik dan komisi bimbingan dan dosen dengan berbagai fitur yang dapat memudahkan penggunanya. Hasil dari penelitian ini, sistem mampu mengimplementasikan algoritma winnowing untuk membantu komisi bimbingan menentukan dosenpembimbing skripsi sesuai dengan aturan dan kompetensi yang dimiliki dosen.

Kata Kunci: Algoritma Winnowing, Sistem Rekomendasi, Dosen Pembimbing Skripsi
Penerapan Metode Certainty Factor Untuk Sistem Pakar Diagnosis Hama Dan Penyakit Pada Tanaman Tembakau
Authors: Arifin Mohammad , Slamin S. , Retnani Windi Eka Yulia
Published: September 2017

Proses budidaya tanaman tembakau dipengaruhi oleh berbagai faktor, salah satunya adalah faktor hama dan penyakit. Umumnya, masalah petani membedakan antara hama dan penyakit, hal ini karena sebagian besar petani kekurangan informasi dan masih mengandalkan pengalaman petani lain untuk mengatasi masalah hama dan penyakit yang ada. Sering terjadi kesalahan dalam membedakan antara hama dan penyakit, seperti hama diberantas dengan obat untuk penyakit (fungisida), sebaliknya, penyakit diberantas dengan obat hama (insektisida). Sebagai hasil dari hama dan penyakit yang tidak terkontrol dan terus menyerang tanaman, sehingga merugikan banyak biaya dan usaha. Pada penanganan hama dan penyakit, dibutuhkan konsultan pertanian yang mampu mendiagnosa hama dan penyakit pada tanaman tembakau. Dalam penelitian ini, sistem pakar diagnosis hama dan penyakit pada tanaman tembakau dibangun untuk membantu mendiagnosa jenis hama atau penyakit yang menyerang tanaman tembakau, serta memberikan berbagai solusi untuk hama atau penyakit. Metode yang digunakan pada sistem pakar ini adalah metode Certainty Factor. Metode Certainty Factor dipilih karena metode ini cocok dalam proses penentuan identifikasi hama dan penyakit, dan hasil dari penerapan metode ini adalah persentase. Persentase sistem disini merupakan tingkat akurasi penentuan penyakit atau hama yang menjangkiti tanaman tembakau. Penentuan persentase dipengaruhi oleh nilai MB yang didapat dari sistem dan nilai MD yang didapat dari penilaian seorang pakar. Berdasarkan penelitian yang dilakukan, penentuan hama atau penyakit yang menyerang tanaman tembakau dipengaruhi oleh pemilihan gejala. Persentase pada konsultasi sistem pakar diambil dari hasil tertinggi pertama dan kedua, sebagai alternatif hama lain atau penyakit yang menyerang tanaman tembakau.

Kata Kunci: Hama dan Penyakit, Sistem Pakar, Certainty Factor, Tembakau
Optimalisasi Daya dan Energi Listrik pada Panel Surya Polikristal Dengan Teknologi Scanning Reflektor
Authors: Utomo Hery Setyo , Hardianto Triwahju , Kaloko Bambang Sri
Published: September 2017

Energi surya merupakan salah satu energi yang dapat dikonversi menjadi energi listrik, yaitu panel surya (photovoltaic solar). Ada beberapa jenis sel surya masing-masing memiliki kelebihan dan kekurangan. Dalam penelitian ini dirancang panel surya dengan cermin datar teknologi reflektor scanning dengan empat reflektor pada empat sisi. Teknologi scanning reflektor ini bekerja dengan mencari titik daya maksimum dalam kondisi tertentu dengan menggerakan reflektor sisi timur dan barat. Proses scanning dilakukan setiap 30 menit sekali waktu pengujian pukul 07.30 WIB hingga 14.30 WIB. Dengan penambahan cermin teknologi reflektor pemindaian datar pada panel surya menyebabkan peningkatan arus dengan rata-rata 0,7533 ampere dan peningkatan nilai daya rata-rata 10,201 watt dibandingkan dengan tanpa menggunakan reflektor. Dengan melihat nilai efisiensi, panel surya yang menggunakan reflektor dengan teknologi scanning reflektor telah meningkatkan efisiensi dengan rata-rata 6,362%. Untuk besar selisih energi yang dihasilkan teknologi scanning reflektor dalam rentang waktu tujuh jam diperoleh nilai 191,012.62 joule dibandingkan tanpa reflektor.Kata Kunci: Panel surya, reflektor, scanning, photovoltaic.
Formação territorial enquanto instrumento de afirmação das fronteiras entre São Paulo e Minas Gerais nos séculos XVIII e XIX. A freguesia de N. S. da Conceição do Bom Sucesso do Rio Pardo
Authors: Ferreira Rafael Augusto Silva , Pereira Renata Baesso
Published: September 2017

O presente artigo discute a formação de parte da região nordeste paulista a partir da criação da freguesia de Nossa Senhora da Conceição do Bom Sucesso do Rio Pardo (Caconde), elucidando o processo de ocupação do território, enquanto afirmação da fronteira entre as Capitanias e, posteriormente, Províncias de São Paulo e Minas Gerais. O trabalho parte da definição teórico-metodológica da constituição de rede de cidades, enquanto forma de consolidar a ocupação dos territórios no Brasil Colônia e Império. A gênese dos conflitos ligados à definição da fronteira na região envolve os novos descobertos auríferos, a abertura de caminhos e a criação de novas freguesias e vilas. O trabalho adota uma abordagem macrorregional para compreender as relações territoriais, definindo a formação da paisagem a partir da sobreposição dos diferentes tempos históricos.
Por uma arqueologia da paisagem: mobilidade e enraizamento em perspectiva americana
Authors: Bueno Beatriz Piccolotto Siqueira
Published: September 2017

A historiografia sobre o processo de urbanização no Brasil no período colonial pautou-se, em geral, pelo estudo das vilas e cidades em detrimento dos demais núcleos de povoamento que pontuavam territórios cumprindo diferentes papéis. Lugares, arraiais, capelas, freguesias, julgados, bairros rurais, aldeias indígenas, aldeamentos missioneiros, pousos, registros, passagens, barreiras, fazendas, sítios, currais e fortalezas ficaram obscurecidos em meio à rarefeita rede de vilas e cidades. A historiografia tampouco deu atenção à natureza da multifacetada teia de comunicação que articulava esses núcleos – rios, córregos, veredas, trilhas, caminhos e calçadas – que permitiam ou dificultavam fluxos e contatos interregionais, em meio à difícil e plural geografia física e humana que até hoje caracteriza as nossas diversas paisagens culturais. Uma série de mapas presta-se de maneira exemplar à reconstituição de uma trama perdida no tempo, por meio de recursos de informática contemporâneos, propiciando estudos quantitativos mais pormenorizados que certamente fundamentarão um olhar qualitativo mais minucioso com foco nas dinâmicas e práticas cotidianas, no ritmo das viagens, na distância entre as localidades, nas dificuldades de contato, no fluxo dos rios, nas barreiras impostas pela topografia e a vegetação ou por grupos humanos, nos pontos de paragem para descanso e pedágio, etc. A visão de conjunto propiciada pelo exame de certos mapas permite assim reconceituar noções como a de “rede” e de “urbano” no Brasil-Colônia, analisando aspectos gerais e especificidades regionais, as diversas escalas, modalidades e temporalidades, propiciando novas hipóteses sobre enraizamento e mobilidade no processo histórico de ocupação e devassamento do território colonial. Estudos dessa natureza realizados por uma nova safra de autores podem assim nos ajudar a responder a pergunta que orienta este artigo: em que medida a colonização do Brasil foi mais urbana e menos arquipelágica do que parecia à primeira vista?
Caminhar na Trilha Norte-Sul: infraestrutura verde entre o Parque da Água Branca e o Horto Florestal em São Paulo [SP]
Authors: Maruyama Cíntia Miua , Franco Maria Assunção Ribeiro
Published: September 2017

A infraestrutura verde propõe uma visão alternativa para as cidades com urbanização cinza tradicional. Dentre os diversos benefícios propiciados por esta abordagem estão a amenização dos efeitos das ilhas de calor urbanas, o manejo sustentável das águas da chuva e a melhoria dos transportes não motorizados. Por outro lado, calçadas dotadas de arborização e com dimensões adequadas fornecem condições de conforto urbano ao pedestre. O presente artigo faz parte do Projeto FAPESP Nº 2015/10597-0 Infraestrutura Verde para a Resiliência Urbana às Mudanças Climáticas da Cidade de São Paulo, sob responsabilidade de Maria de Assunção Ribeiro Franco.   Neste artigo, investiga-se a suposição de que bons passeios públicos possam estimular a prática da caminhada, pois exercícios físicos regulares são importantes para a saúde da população e, dentre as diversas modalidades possíveis, a caminhar é uma forma econômica de se exercitar e ao alcance da maioria das pessoas. Os objetivos deste trabalho foram: analisar as condições das calçadas e os hábitos relativos ao hábito da caminhada, assim como os locais onde isto é efetivado; os costumes referentes ao uso das praças e parques; avaliar os efeitos das ilhas de calor no trecho em estudo. A metodologia envolveu a análise da adequação física e da arborização urbana das calçadas, num trecho entre o Parque da Água Branca e a região do Horto Florestal em São Paulo/SP. Por meio da aplicação de questionários foi verificada a percepção dos usuários em relação aos assuntos mencionados. De forma geral, os resultados da pesquisa com usuários indicaram que 35% dos entrevistados não se sente bem no ato de caminhar e a principal alegação apresentada foi a inadequação das calçadas. Por outro lado, 80% dos usuários sinalizaram haver mais disposição para caminhar se houver mais arborização nas vias. Os resultados da pesquisa confirmaram a hipótese em determinados trechos e há a necessidade de realizar melhorias a fim de adequar as calçadas e a arborização para incentivo das caminhadas. Também foi detectada a necessidade de aumentar a segurança das praças da área de estudo, bem como criar mais opções de lazer e esporte para a população. Por fim, foram observadas ilhas de calor na área de estudo, as quais coincidiram com os locais onde a arborização foi avaliada como crítica. Possibilidades de mitigação dos efeitos destas ilhas de calor dentro de uma infraestrutura verde incluem plantio maciço de árvores e outros estratos de vegetação, adoção de tetos verdes e pavimentos brandos nas vias.
Los planes federales de vivienda en el área metropolitana de Buenos Aires
Authors: Chiara Camila , Virgilio María Mercedes Di , Aramburu Florencia
Published: September 2017

El objetivo del artículo es reflexionar en torno a la implementación de políticas habitacionales en el Conurbano Bonaerense, particularmente los Planes Federales, en relación con las políticas habitacionales implementadas en la región en los últimos años. El análisis se construye, mediante datos secundarios, a partir de una desagregación minuciosa de las características que estos Programas adquirieron en cada municipio en el período comprendido entre el anuncio oficial y principios del 2014. En este sentido, busca iluminar qué municipios implementaron estas políticas, mediante qué subprograma lo hicieron, qué tipología de obras ejecutaron, y en qué estado de avance se encuentran. Ello a partir de la puesta en diálogo con la situación habitacional que presenta el Conurbano Bonaerense.
Negociaciones, permanencia y construcción cotidiana en villas: villas la lonja, cildáñez y castañares, Buenos Aires, 1958-1967
Authors: Massidda Adriana Laura
Published: September 2017

Este artículo toma tres villas históricas en Buenos Aires – Villas La Lonja, Cildáñez y Castañares – para analizar procesos de transformación espacial en villas durante sus primeras décadas de crecimiento y asimismo las dinámicas de desplazamiento impulsadas por el Estado. Se propone que pueden distinguirse al menos dos tipos de dinámicas, interrelacionadas, en torno a la disputa por el espacio urbano en villas: la de la movilización y la de la procura diaria de los servicios básicos. Segundo, se propone que las villas que lograron mayor consolidación, tanto espacial o material como organizativa, fueron las que lograron permanencia en el territorio en el largo plazo. Se trata de una investigación histórica basada en el análisis de fuentes primarias y de archivo originales.
La antigüedad de asentamientos informales como factor de diferenciación sociespacial - un caso de estudio de la ciudad de México
Authors: Castillo Milton Montehano
Published: September 2017

Los asentamientos informales han formado parte de los modelos de estructura urbana y diferenciación socioespacial de la ciudad latinoamericana en los últimos treinta años. Sin embargo, el crecimiento, consolidación y heterogeneidad creciente de este tipo de asentamientos los ha convertido no solo en un elemento más de la ciudad, sino en una ciudad en sí. A pesar de los retos que tales ciudades informales presentan en términos de planificación y gestión, no ha habido ningún intento por modelar su estructura y transformación. Por ello, en este artículo se propone la lectura histórica como base para entender la diferenciación socioespacial de la ciudad informal. El caso de estudio es Ciudad Nezahualcóyotl, México; una ciudad de origen informal de más de un millón de habitantes y más de cincuenta años de transformación, lo que permite identificar algunos elementos de diferenciación intraurbana.
Clínica Psicodinâmica do Trabalho com Gestores de uma Unidade de Taquigrafia Parlamentar
Authors: Facas Emílio Peres , Fischer Héden Cardoso Rodrigues , Ghizoni Liliam Deisy
Published: September 2017

Resumo
É apresentada uma prática em clínica Psicodinâmica do Trabalho com gestores da área de taquigrafia de uma organização pública. Foram analisadas a organização do trabalho, a mobilização subjetiva, o sofrimento, as defesas e as patologias. Foram feitas nove sessões coletivas com oito gerentes. Concluiu-se que os participantes estão submetidos a uma organização do trabalho focada na produtividade e na excelência da prestação dos serviços. Não há espaço para a subversão do trabalho prescrito e flexibilidade no modo de conduzir as tarefas. Há espaço de negociação para solucionar os problemas advindos do trabalho real, permitindo que o gerente coloque a criatividade e a subjetividade para lidar com o prescrito. A possibilidade de enfrentar os constrangimentos do trabalho dá espaço às vivências de prazer, que são intensificadas pelo reconhecimento no trabalho.
Palavras-chave: Psicodinâmica do Trabalho; Gerente; Taquigrafia; Excelência na Gestão.
Entre Entre espelhos e jardins. A mina para abrir céu como lugar de trabalho.Aponte de uma Antropologia de trabalhar
Authors: Soraire Florencia
Published: September 2017

Nos focalizando nas relações sociais que propicia a mineração para abrir céu que quando gera trabalho, da perspectiva da Antropologia de trabalhar, que nós chegamos isso primeiramente que um nós entendemos para trabalhar e como o contexto contraditório está no que registra a prática na Argentina, da Administração de recursos humanos. Nós reconstruímos a mina como trabalho" "lugar, pelos testemunhos de homens e mulheres que os habitaram. Nós mostramos o posicionamento geográfico deles/delas e o temporalización deles/delas da prática. Nós concluímos com uma série de notas no problema observado
Marcas na subjetividade do trabalhador contemporâneo
Authors: Andrade dos Santos Rute , Scopetc dos Santos Franciele Monique
Published: September 2017

Este artigo pretende fazer uma articulação entre o modelo econômico flexível e as condutas sociais do trabalhador contemporâneo. O modelo econômico flexível se fundamenta na nova forma flexível de acumulação do capital que se deu em confronto ao Fordismo. Para dialogar com a teoria, apresenta-se como objeto de investigação a pesquisa com trabalhadores de uma empresa privada do estado do Tocantins. Como método de pesquisa utilizou-se a análise qualitativa e a investigação social, realizando 12 entrevistas com os sujeitos sociais pesquisados. Como resultado concluiu-se a necessidade de entendimento do regime econômico vigente e suas formas de capturar o trabalhador contemporâneo, provocando marcas profundas em sua subjetividade.
Intellectual property is a key for innovations
Authors: Tsukerblat D. M.
Published: September 2017

To ensure the effective functioning of the national innovation system it is required an appropriate innovation infrastructure, which is a set of economic entities providing technical, informational, human, financial, organizational-methodical and (or) other support to subjects of innovative activity necessary to create knowledge, technologies, transformation them into new products and services. A key part of the regional innovative infrastructure is a structure of patent information support of innovation processes undertaken by the State Public Scientific Technological Library of the Siberian Branch of the Russian Academy of Sciences. Analytical and patent information play a leading role in strategic planning and management of innovation and intellectual property, scientific-technological and marketing problems, understanding the general level of achievements in the field of science and technology. In this regard, the most important activity of infrastructure elements of the innovation patent information support is to ensure access of economic entities to a variety of resources to effectively address issues of protection, disposition and use of rights to results of intellectual activity. These elements of the innovation infrastructure should become so called «connecting bridges» from knowledge to innovation. The author proposes the exchange mechanisms for commercialization of scientific-technological developments. Launching the project Novosibirsk Center to Support Innovation and Technology created on the base of the State Public Scientific Technological Library of the Siberian Branch of the Russian Academy of Sciences plans to change the approach to innovations that should help to solve the regional basic problems.
An Analysis of Dynamic Vibrations: The Invariant Normal Curvature Wave Equation
Authors: Afas Keith C. , Moschandreou Terry
Published: September 2017

This paper attempts to address the phenomenon of normal vibrations, (referred to as dynamic vibrations) occurring on a surface which is already in vibrational motion due to other kinematic phenomena. Such a surface will have a metric tensor, normal, and ambient velocity which diverges from the surface’s original various dynamic tensorial descriptors. This paper formulates the wave equation defined in a coordinate space, and extends the equation to observe vibrations on a surface with the use of the Laplace-Beltrami operator in a tensorial fashion drawing on conventions from the newly established Calculus of Moving Surfaces (CMS). The Paper then identifies the way which these normal vibrations will manifest within ambient space. Finally, a counter-intuitive relation between the magnitude of such dynamic vibrations and dynamic surface’s time-dependent mean curvature presents itself, for which dynamic vibrations superimposed on original dynamic motion will eliminate the other, and the surface remains static under an arbitrary initial motion. From this condition, resubstitution within the wave equation yields a novel coupled PDE system which within contains the time-evolution of the surface’s mean curvature and its dynamic vibrations. This analysis can have application for algorithms designed for mechanical stabilization during seismic activity, as well as analyzing stabilization algorithms for other various applications and can also have application with respect to biotechnological innovations for analyzing properties defined on the surface of cell-Like biological entities such as metabolism, lipid content, and actin dynamics.
A New Proof of Smoryński’s Theorem
Authors: Tyszka Apoloniusz
Published: September 2017

We prove: (1) the set of all Diophantine equations which have at most finitely many solutions in non-negative integers is not recursively enumerable, (2) the set of all Diophantine equations which have at most finitely many solutions in positive integers is not recursively enumerable, (3) the set of all Diophantine equations which have at most finitely many integer solutions is not recursively enumerable, (4) analogous theorems hold for Diophantine equations D(x1, …, xp) = 0, where p ∈ N\{0} and for every i ∈ {1, …, p} the polynomial D(x1, …, xp) involves a monomial M with a non-zero coefficient such that xi divides M, (5) the set of all Diophantine equations which have at most k variables (where k ≥ 9) and at most finitely many solutions in non-negative integers is not recursively enumerable.
Extensions and Enhancements to "The Secure Remote Update Protocol" (SRUP)
Authors: Poulter Andrew John , Johnston Steven J. , Cox Simon J.
Published: September 2017

This paper builds on previous work introducing the Secure Remote Update Protocol (SRUP)—a secure communications protocol for Command & Control applications in the Internet of Things, built on top of MQTT. This paper builds on the original protocol, and introduces a number of additional message types: adding additional capabilities to the protocol. We also discuss the difficulty of proving that a physical device has an identity corresponding with a logical device on the network, and propose a mechanism to overcome this within the protocol.
ANALYSIS OF EFFECT OF PROFITABILITY, ASSETS STRUCTURE, SIZE OF COMPANIES, AND LIQUIDITY TO CAPITAL STRUCTURES IN MINING COMPANIES LISTED IN INDONESIA STOCK EXCHANGE PERIOD 2012 - 2015
Authors: Ahmad Gatot Nazir , Lestari Ripa , Dalimunthe Sholatia
Published: September 2017

The purpose of this study is to analyze the effect of profitability, structure assets, firm size and liquidity to the capital structure of mining companies listed on the Indonesia Stock Exchange for the period 2012-2015. Sampling technique using purposive sampling. Data analysis technique used in this research is panel data regression. The results showed that partially profitability had negative and significant effect to capital structure, asset structure had positive and significant effect to capital structure, firm size had positive and significant effect to capital structure, and liquidity had negative and significant effect to capital structure. Simultaneously profitability, asset structure, firm size and liquidity have a significant effect on capital structure.
A Failure to Communicate: Are University Websites Readable?
Authors: Taylor Zachary W.
Published: September 2017

The readability of university-authored websites is an area wholly unexplored by higher education research and constitutes a crucial gap in the literature. The purpose of this study was to examine the readability of university-sponsored webpages of 30 four-year public American universities (n = 300), comprising three of the largest university systems in the country. The results suggest that the vast majority of university-authored webpages are unreadable by prospective postsecondary students, and institutions in the same university system wildly vary the readability of their documents. Implications for policy, practice, and future research are addressed.
Complicated Total Knee Arthroplasty in a Patient with Klippel-Trenaunay-Weber Syndrome
Authors: Joseph Elias G. , Ernest Emily P. , Dietz Matthew J.
Published: September 2017

Case:

A 66-year-old Caucasian man with Klippel-Trenaunay-Weber syndrome (KTWS) presented with chronic changes related to the KTWS, along with worsening pain and motion associated with residual damage from an episode of spontaneous septic arthritis that occurred 1 year prior. He underwent total joint arthroplasty with a rotating hinged knee implant.

Conclusion:

Arthroplasty is a treatment option for patients with KTWS; however, there are risks that must be considered. This case report outlines the management of a patient with KTWS and a history of septic arthritis.
KURVA PERTUMBUHAN SAPI PERAH FRIES HOLLANDS DARI LAHIR SAMPAI UMUR KAWIN PERTAMA DENGAN MODEL MATEMATIKA LOGISTIC
Authors: Salman Lia Budimulyati , Noor Ronny Rachman , Saefuddin Asep , Talib Chalid
Published: September 2017

Tujuan utama dalam pembuatan model kurva pertumbuhan adalah untuk deskripsi dan prediksi. Tujuan deskripsi merupakan upaya untuk bisa mempermudah interpretasi dari proses pertumbuhan ternak menjadi hanya beberapa parameter, sedangkan tujuan prediksi lebih fokus bagaimana metode untuk memprediksi dari beberapa parameter. Adapun tujuan penelitian ini adalah untuk membuat model kurva pertumbuhan sapi perah Fries Hollands dari lahir sampai siap kawin yang sesuai dengan situasi dan kondisi skala industri peternakan sapi perah. Data bobot badan sapi betina yang digunakan dalam penelitian ini merupakan hasil penimbangan bobot badan dari sapi perah Fries Hollands yang dipelihara oleh PT Taurus Dairy Farm Sukabumi dari tahun 2001 sampai 2011, sejumlah 1221 ekor, individu yang mempunyai data lengkap dari lahir sampai umur kawin pertama sebanyak 373 ekor. Sedangkan untuk data BPPTU Baturraden 214 ekor data kelahiran sampai ternak siap untuk dikawinkan pertama kali dari 2010 sampai 2011. Data dianalisis menggunakan program SAS 9.2 dengan prosedur NLIN (Non Linear). Kurva yang dihasilkan dapat dipakai sebagai standar kurva pertumbuhan sapi perah Fries Hollands di Indonesia dari lahir hingga siap kawin. Model matematik Logistic dapat dipakai untuk menduga kurva pertumbuhan karena mempunyai tingkat akurasi yang tinggi dengan nilai koefisien determinasi (R2) lebih dari 90%.
IDENTIFIKASI VARIETAS TANAMAN KUNYIT MENGGUNAKAN SISTEM PAKAR
Authors: Bursatriannyo Nfn
Published: September 2017

In Conjunction with the increasing of plant genetic resources development, the number of accessions of the turmeric plant is also increasing, making it difficult to differentiate between varieties, due to similar appearances. This research aimed to develop an expert system to identify the varieties of turmeric (Turina-1, Turina2, and Turina-3). Knowledge acquisition for building the expert system is performed in conjunction with an expert from the Indonesia Spices and Medicinal Research Institute. The knowledge acquisition process resulted in 13 input variables to describe a variety. The input inference process divides these 13 variables into two types: fuzzy and non-fuzzy. The non-fuzzy variables are: color of flowers, the base of leaf, and the flesh color of the rhizome which were used to decide whether the input description represents a Turina-1, Turina-2, Turina-3 variety or a non-variety. The remaining 10 fuzzy variables are: number of flowers per stem, plant height, number of tillers, leaf length, leaf width, rhizome weight per hill, number of parent rhizome, the number of primary roots, secondary roots and the levels of curcuma, which are used to determine whether the input description represents a Turina-1, Turina-2 or Turina-3 variety, using the Mamdani method for Fuzzy Inference System (FIS). In the testing phase, we used 100 data, which were already labeled according to the decision by the expert. The result shows that the system was able to correctly identify 89 of the input data.
ANALISIS EFISIENSI TEKNIS, EFISIENSI EKONOMIS DAN DAYA SAING PADA USAHATANI BAWANG MERAH DI KABUPATEN NGANJUK-JAWA TIMUR: SUATU PENDEKATAN EKONOMETRIK DAN PAM
Authors: Waryanto Budi
Published: September 2017

Shallot is an important vegetable commodity for most Indonesian people. Shallots production is not yet able to supply the domestic consumption, and some is still met through imports. The challenge to produce shallots will be more complex, such as: the desire of consumers to high-quality products and environmentally friendly, as well as competition with similar products in the era of free trade. Based on these reasons, research has been done and the purpose of this study was to analyze the factors affecting shallots production, measuring the level of technical efficiency and economical efficiency. The study was conducted in Nganjuk District by taking 179 respondents from four sub districts. Interviews were conducted in October and November 2013, planting shallots April unti August 2013. Methods of analysis using the stochastic frontier production function to look at the effect of inputs on shallots production, followed by the analysis of technical efficiency (TE), allocative efficiency (AE) and economical efficiency (EE), and the final analysis of competitiveness using the Policy Analysis Matrix (PAM). The independent variable inputs consist of land (X1), seeds (X2), NPK fertilizer (X3), organic fertilizer (X4), labor (X5) and pesticides (X6). The analysis showed all independent variables significantly affected shallots production, where the value of the elasticity of the independent variable X2 is the highest, amounting to 0.2822. The analysis also obtained an average value of TE is equal to 0.808 means farmers are efficient, although there are farmers who are still not efficient. Although TE has been achieved, but is economically inefficient, because the average value of EE only 0.509. From PAM results it can be seen that farming shallots in this study has a competitive advantage but do not yet have a comparative advantage.
SIDIK LINTAS DALAM PENENTUAN KARAKTER SELEKSI JAGUNG TOLERAN CEKAMAN KEKERINGAN
Authors: Efendi Roy , Aqil Muhammad , Makalau Andi Takdir , Azrai Muhammad
Published: September 2017

Information on characteristics related to drought tolerance is particularly important for improving hybrid maize yield. The present study was conducted with 62 genotypes involving tolerant, moderate, susceptible and very susceptible, for post flowering drought tolerance of hybrid maize. An experiment was conducted to determine the characteristics association between grain yield and its components and their direct and indirect effects to the yield. The research was arranged in a randomized completed block design with three replications. Drought stress treatment was started from flowering (50 days after planting, dap) until milk-dough stage (80 dap). The result indicated significant and positive association of grain yield with plant height, ear position height, stalk diameter, leaf area, leaf angle, the percentage of leaf senescence, leaves rolling score, ear length, ear diameter, number of grain/ear and shelling percentage were correlated with the yield under drought stress. Grain yield was strongly correlated with plant height, leaf area, ear length, ear diameter, and shelling percentage. Indirect effect on grain yield under drought conditions were found for the following parameters: stalk diameter, leaf angle, percentage of leaf senescence, leaf rolling scores and number of seeds/ear.
Guest Editorial: We Need To Celebrate Our Successes if We Want the Next Generation To Be Part of Our Future
Authors: Geddes Alistair
Published: September 2017

Guest editorial

The prolonged downturn in commodity prices that started in the summer of 2014 has seen more than 350,000 people globally lose their jobs in the oil and gas industry to date. However, as BP’s mantra “lower for longer” evolves into Shell’s phrase “lower forever” and we adapt to the reality of working with an oil price around $50/bbl, signs of recovery are beginning to occur.

The US shale sector, with its relatively low operational expenditure costs and rapid rig up time, has led that revival, and it is anticipated that deepwater projects, which have also experienced cost reductions over the past 3 years, will follow in time.

However, in line with every other time this cyclical sector has come out of a downturn, the anticipated increase in activity is matched by concerns over how and where the industry will find the recruits required to fuel a resurgence, either through attracting former employees back or encouraging new, young people to join.

Attempts to attract new employees can be hampered by negative perceptions of oil and gas in some parts of the world. This challenge was reinforced recently by a poll from Ernst & Young (EY) among 1,200 consumers and 100 industry executives in the US. Held in the first quarter of this year, the US Oil and Gas Perception poll found that only 26% of Generation Z (aged 16–19) and 45% of millennials (aged 20–35) without a set career path found jobs in the industry appealing. A surprising 39% of teenagers actually ranked it as “very unappealing.” Two out of three believed the industry causes problems rather than solves them and just 36% thought it had a positive effect on local and global communities. Furthermore, the majority from the younger generation perceived oil and gas jobs to be blue collar, dangerous, and physically demanding, and just 39% thought it provided long-term financial stability.

Such assumptions do not extend to every corner of the world (there is generally considerable interest and enthusiasm in Africa and Asia, for example), but one could argue that a perception challenge toward the benefits of working in oil and gas does exist within societies in Western Europe and North America.

As an industry, our efforts to promote the positive and exciting aspects of our job have often fallen short of convincing the wider public of the crucial role oil and gas plays in sustaining the global economy and modern life. As a result, compared with other industries, we do have to work harder to recruit for some roles. Maybe we take for granted the technical achievements that many companies make to overcome ever-more-complex challenges and that often astound the outside world when it hears of them?
Finding Your Next Sweet Spot Using Dirty DNA
Authors: Jacobs Trent
Published: September 2017

Biodentify is a Netherlands-based startup that wants to help oil and gas explorers zero in on sweet spots using microbial DNA. Unlike another new DNA analytical method, which uses drill cuttings as samples to learn about unconventional productivity drivers, the approach this firm is focused on uses soil samples taken just a foot below the surface to search for good drilling locations.

The company’s technology is borrowed from a still emerging medical science breakthrough that uses saliva to test for tumors as opposed to a much more invasive biopsy. In looking for alternative uses, it was thought the same process could be used to predict oil and gas deposits based on microbial reactions to micro-seepages of gas molecules.

Through oxidation, certain microbes will thrive on gas seepages, while others will find the rising gases to be toxic and die. Either outcome provides a usable signal that a machine learning model can turn into an easy-to-interpret prediction map.

“Many say it’s too good to be true—what’s the link between the surface and what’s down there,” said Chris Te Stroet, the director of technology and operations at Biodentify. “The causal link is that you have a hydrocarbon accumulation—the sweet spots—and a highly mobile area, probably because of a good natural fracture network.”

Te Stroet, who has led commercialization efforts of new oil and gas technologies since the mid-1990s, said a single sample may contain as many as 300,000 microbial species—most of which are newly discovered. But Biodentify has found that only 50 to 200 of them serve as key indicators of a positive or negative signal.

With hundreds of samples in hand a map is then produced to help explorers derisk potential drilling locations. The company says its analytical method is 70–90% accurate; the high end of that range is achievable if information can be gleaned from existing wells in the target area.

Validation Study Hits Close to the Mark

Despite a limited track record, the company is confident in its accuracy thanks in part to a blind study it performed with an unconventional operator in the Haynesville Shale of western Louisiana. The work was done in a producing field and was 72% accurate in predicting sweet spots.

When actual production data were included in a final modeling exercise, that figure jumped to 86% and 31 “virtual” drilling locations were identified within a sweet spot where the operator had drilled 27 high-producing wells.
Adding the Human Touch to Oilfield Apps
Authors: Jacobs Trent
Published: September 2017

As time goes by, an increasing number of new processes that oil and gas companies want to push to their workforce will come in the form of an app. This is true for field technicians as well as production engineers.

But just as with anytime change is introduced, the improvements these apps are intended to deliver may not be lasting—or realized at all—without strong internal acceptance.

ChaiOne is a Houston-based app developer that has built its business around this conundrum. In its 9 years, the company has worked for several of the upstream industry’s most recognizable names including ExxonMobil and Schlumberger.

Chief Executive Officer Gaurav Khandelwal said the company’s success lies in its bottoms-up strategy, which begins with the end user and “understanding their problems, stresses, frustrations, and emotions.”

This work relies on teams of behavioral psychologists, anthropologists, and software interaction engineers who are tasked with figuring out new ways for workers to save time and money for their companies. Like others who promise efficiency improvements to the oil and gas business, a lot of ChaiOne’s efforts are centered around reducing how much time is spent on regular working hours and overtime.

“When we take the user-experience-driven approach, and send people into the field to study a process, often we find tremendous amounts of waste in the way things are being done,” explained Khandelwal, adding that, “In 4 to 6 weeks, we can find millions of dollars in savings in these companies.”

Smarter Field Repair

Many of the software products that ChaiOne has created cannot be discussed thanks to the industry’s penchant for nondisclosure agreements. But among those that it can speak freely about is CygNet, which was developed for inter-national service company Weatherford.

This iPhone app connects with oilfield SCADA systems to show engineers production trends or to relay important alarms. Khandelwal said operators who use the app—12 of which supplied input to steer its development—are now using fewer field technicians to deal with routine oilfield problems.

When a worker is on his way back from a repair job, it is not unusual for another problem to arise at a wellsite just 10 minutes away. In the past, Khandelwal said that the technician would likely be unaware of a nearby failure, and because dispatch did not know they were close by, an additional crew would be sent out. With the CygNet app, the reverse is now true for its users. When a repair team is out on location and a nearby well sets off an alarm, CygNet sends a geo-targeted notification. And just as important, the app can also help them decide if the issue needs to be attended to at all.
Multiwell, Multiphase Flowing Material Balance
Authors: Shahamat M. S. , Clarkson C. R.
Published: September 2017

Flowing-material-balance (FMB) analysis is a practical method for determining original hydrocarbon volumes in place. It is attractive because it enables performing material-balance calculations without shutting in wells to obtain estimates of reservoir pressure. However, with some exceptions, its application is limited to single-phase oil and/or gas reservoirs over limited pressure ranges during depletion. In unconventional reservoirs, reservoir and/or production complexities may further restrict FMB use. Among these complexities are significant production/injection of water, production resulting in higher gas/oil ratios (GORs) and pressure drawdowns, geomechanical effects, and multiwell-production effects. As a result, application of the conventional FMB to unconventional reservoirs may lead to significant errors in hydrocarbons-in-place estimation.

This paper first discusses the application of conventional FMB to the analysis of single-phase or multiphase flow in single or multiwell scenarios, and then provides a new, comprehensive version of the FMB to address the previously mentioned complications. For the new FMB, pseudopressure is used to account for two-phase oil/gas flow. In addition, by use of a general material-balance equation, water production/injection and multiwell effects are included in the analysis. The new FMB-analysis approach is validated by comparing results with numerical simulation of multifractured horizontal wells (MFHWs). These comparisons demonstrate that, not only gas production, but also water production/injection can have a significant effect on the calculated original-in-place hydrocarbon volumes. The new FMB-analysis approach provided herein successfully accounts for all flowing phases in the reservoir, and is demonstrated to be applicable for multiwell scenarios.

The methodology presented in this paper maintains the simplicity of FMB, yet accounts for multiphase flow and multiwell complications. The developed FMB and the presented approach can be used by reservoir engineers to reasonably determine the original volumes of hydrocarbons in place in both conventional and unconventional reservoirs.
Legume Addition to Perennial Warm‐Season Grass Swards Increases Harvested Biomass
Authors: Jakubowski Andrew R. , Casler Michael D. , Jackson Randall D.
Published: September 2017

The adoption of perennial warm‐season grass crops for bioenergy production faces significant social, economic, and agronomic challenges. The inclusion of legumes in warm‐season grass swards may increase productivity, reduce weed pressure and the need for fertilizer inputs, and allow farmers greater management flexibility. The objectives of this study were (i) to evaluate whether the overseeding of red clover (Trifolium pratenseL.) in warm‐season grass swards can improve biomass yields and reduce weed cover, (ii) to determine if biomass yield gains arise from increased N availability or the biomass production of the legume crop, and (iii) to determine whether switchgrass (Panicum virgatumL.) or big bluestem (Andropogon gerardiiVitman.) accessions respond differently to red clover overseeding. Once established, red clover addition increased biomass yields in unfertilized swards to levels equivalent to fertilization with 112 kg N ha−1and reduced weed cover by 7%. The yield gains with clover addition were consistent irrespective of the warm‐season grass accession tested and were attributable to the production of biomass by the clover. The incorporation of legumes in mixtures with perennial warm‐season grasses can and should play a part in improving the viability of these cropping systems. Future studies should consider alternative planting, harvesting, and weed control in a long‐term experimental framework to refine management of legume and warm‐season grass mixtures.