bluuebunny/crossref_metadata_2025 huggingface dataset:
Effectiveness Learning Model Mind Mapping, Discussion, and Role Playing in Learning Outcomes Nursing Student in Community Nursing
Authors: Sismulyanto Sismulyanto , Putra Made Mahaguna
Published: January 2019

Introduction: Low graduation rates UKNI (Indonesian nurses Competency Test) encourages nursing students for their innovative teaching model. MDR learning methods (Mind mapping, discussion and role play) is a new teaching method and innovative that can improve student understanding. The purpose of this study was to determine the effect of learning the MDR model towards the understanding of the students in the subject of community nursing. Methods: This study uses a pre-experiment approach pre-post test. Sample of this study was 50 7th-semester student. All students who followed the MDR learning model were given practice questions then followed this learning model and measured again using practice questions. Results: Analysis of data using statistical test paired t-test. Distribution of respondents by sex is 15 people (30 %) men and 35 (70%) of women. Average male student GPA was 3.1, average female student GPA was 3.3. Conclusions: The results show that there are differences in the pre and post (mean = 35.46). Learning MDR Model improves critical thinking, motivation and makes learning fun.Keywords : Mind Mapping, Nursing, Education, Discussion, Role Playing
Diversitas Gastropoda pada Akar Mangrove di Pulau Sirandah, Padang, Sumatera Barat
Authors: Riyandi Hirzan , Zakaria Indra Junaidi , Izmiarti Izmiarti
Published: January 2019

Currently, there are a lot of activities in Sirandah Island, such as tourism activities and deforestation to support the activities. Mangrove forest distruction makes a useable area might have negative effect to mangrove ecosystem itself or mollusc community. This research was conducted on mangrove roots area from February until October 2016. The aim of this research is to know the diversity of Gastropods on the roots of the mangrove. This research was conducted using survey method and purposive sampling method to collecting data. We recorded 8 genera of Gastropods belong to 8 families, named Cerithium, Conus, Ellobium, Littorina, Melongena, Nerita, Cymatium and Turbo. The highest abundance was found in the genus of  Littorina with 59.33 individuals/tree. Based on location, abundance ranged from 4.33-60.33 individuals/tree with the highest abundance on mangrove roots of Barringtonia asiatica. Diversity indices of Gastropods on mangrove roots in Sirandah Island ranged from 0.77 to 1.42 which is relative low range.
Analisis Dampak Lalu Lintas Kawasan Industri Studi Kasus PT Banten Energy International, Kecamatan Kramatwatu Kabupaten Serang
Authors: Mutharuddin Mutharuddin , Muharnmadun Haris
Published: January 2019

Kajian analisis dampak lalu lintas, adalah pekerjaan penting yang harus dilakukan sebelum kawasan industri dibangun. Data dalam kajian ini diperoleh melalui survai lalu lintas, kemudian dilakukan analisis tarikan dan bangkitan lalu lintas, sebaran pergerakan dan dilakukan simulasi kinerja lalu lintas tanpa dan dengan pengembangan, rekomendasi implementasi rencana dan dampak manajemen, tanggung jawab pemerintah dan pengembang atau penanganan pembangunan dan pemantauan dampak dan rencana evaluasi. Metode yang digunakan dalam penelitian ini adalah metode MKJI (1997). Dalam pelaksanaan pemodelan, dilakukan beberapa skenario bahwa kondisi yang ada sebelum operasi, selama konstruksi, operasi dan setelah 5 tahun operasi. Berdasarkan kondisi, manajemen lalu lintas dan rekayasa yang akan direncanakan. Pemodelan dilakukan pada ruas JI.Raya Tonjong arah ke Bojanegara dan arah ke Kramatwatu serta ruas Jl. Frontage Tol arah ke Tol Cilegon Timur dan arah ke PT.BEi, dilakukan beberapa skenario bahwa kondisi yang ada sebelum operasi, selama konstruksi, operasi dan setelah 5 tahun operasi. Berdasarkan kondisi, manajemen lalu lintas dan rekayasa yang akan direncanakan, dari hasil peramalan dan analisis diperoleh hasil bahwa pada tahun 2014 kondisi lalulintas pada kondisi pelayanan rata-rata B di semua arah, namun pada tahun 2019 terdapat 2 ruas jalan dengan tingkat pelayanan F dan satu arah dengan pelayanan E, sedang pada tahun 2024 ada 4 ruas jalan dengan tingkat pelayanan F.
Analisis Implementasi Sistem Pengamanan Kapal dan Pelabuhan Yang Terbuka Untuk Perdagangan Luar Negri
Authors: Malisan Johny
Published: January 2019

International Maritime Organization (IMO) telah mengeluarkan berbagai code untuk menjamin keselamatan dan keamanan pelayaran. Salah satu diantaranya adalah keamanan operasional kapal dan fasilitas pelabuhan yang dituangkan dalam bentuk ISPS Code (code for international ship and port facility security), namun penerapannya belum optimal terutama karena ketidaksiapan dari operator maupun regulator dengan bebagai alasan yang semestinya dapat diatasi. Oleh karena itu penelitian ini menganalisis penerapan aturan/ koda pengamanan kapal dan fasiltias pelabuhan dari beberapa aspek seperti sarana dan prasarana, sumberdaya manusia, manajemen pengamanan kapal dan pelabuhan, metode pengamanan, serta aspek finansial pengamanan kapal dan pelabuhan. Analisis ini dilakuan berdasarkan metode analisis SWOT terhadap keseluruhan aspek tersebut. Hasil akhir dari kajian ini berupa strategi-strategi penerapan yang antara lain meliputi: peningkatan profesionalisme SDM yakni SSO, PFSO dan CSO; peningkatan ketersediaan sistem dan perangkat komunikasi dan peralatan keamanan seperti CCTV, VTIS, metal detector; mengoptimalkan peran dan tanggung jawab port security melalui kerjasama antar perusahaan pelayaran dan pelabuhan serta instansi terkait lainnya; mengoptimalkan peran dan tanggung jawab keamanan serta mewujudkan metodologi penilaian keamanan dan rencana maupun prosedur tindakan aksi pengamanan di pelabuhan.
Prioritas Pengembangan Terminal Penumpang Bandar Udara Sultan Hasanudin Makassar
Authors: Purnama M Herry
Published: January 2019

Bandar udara Sultan Hasanudin di Makasassar merupakan bandar udara intemasional terbesar di Pulau Sulawesi. Bandar udara yang yang terletak dekat jantung ibukota Propinsi Sulawesi Sela tan ini diperkirakan akan melayani pergerakan penumpang sebanyak 13 juta penumpang pada tahun 2015 seperti dilansir oleh National Single Window -Airportnet Direktorat Jenderal Perhubungan Udara Kementerian Perhubungan. Pengembangan luas terminal di suatu bandar udara meliputi keberangkatan, check in area, ruang tunggu, dan baggage claim area. Oleh sebab itu, proses perencanaan pengembangan memerlukan perhitungan yang tepat terkait dengan peningkatan jumlah pergerakan penumpang pada setiap tahunnya. Pengolahan data dalam penelitian ini memanfaatkan model perhitungan sesuai dengan Standar Peraturan Direktur Jenderal Perhubungan U dara Nomor SKEP .77 /VI/ 2005, tentang persyaratan teknis pengoperasian fasilitas teknik bandar udara. Dari hasil pengolahan data pengembangan terminal Bandara Intemasional Sultan Hasanuddin Makassar perlu diprioritaskan pada hall keberangkatan dan baggage claim area yang saat ini 2.169 m2, seharusnya 3.210 m2. Sehingga perlu dilakukan pengembangan seluas 1.041m2. Selain itu perlu juga diprioritaskan pengembangan terhadap luas baggage claim area yang saat ini 641 m2, dibutuhkan menjadi 732 m2.
Penerapan Konsep Aerotropolis Dalam Pengembangan Bandar Udara Sepinggan - Balikpapan
Authors: Yusuf Muhammad , Kusumawati Dedes
Published: January 2019

Transportasi merupakan sektor penting untuk keterhubungan antar wilayah baik dalam suatu negara ataupun antarnegara. Salah satu moda transportasi yang sangat berkembang pesat saat ini adalah moda transportasi udara dengan didukung pembangunan infrastruktur bandar udara yang memadai dan berkualitas. Konsep tata letak bandar udara yang berada di pinggiran kota dan kurang terintegrasi dengan pusat kota menjadi salah satu faktor ketidakoptimalan peran bandar udara. Konsep aerotropolis, yang telah diterapkan di bandar udara utama kelas dunia, merupakan daerah yang terintegrasi dengan bandar udara dimana semua jenis aktivitas disediakan dan ditingkatkan oleh bandar udara. Bandar udara itu sendiri merupakan nucleus dalam fungsi utama ekonomi dengan tujuan akhir menyokong daya saing kota, penciptaan kerja, dan kualitas hidup. Pokok permasalahan dari penelitian ini yaitu untuk melihat kemungkinan penerapan konsep aerotropolis di Bandar Udara Sepinggan-Balikpapan dengan mempertimbangkan berbagai aspek. Sampai saat ini, belum ada bandar udara yang menggunakan konsep aerotropolis di Indonesia. Penelitian ini menunjukan bahwa Bandar Udara Sepinggan masih dalam rangka persiapan penerapan konsep airport city untuk menuju ke konsep aerotropolis karena masih banyak karakteristik aerotropolis yang belum terpenuhi.
Analisis Kesiapan Angkutan Laut Dalam Pelaksanaan Asean Economic Community Tahun 2015 (Studi Kasus Makassar Dan Bitung)
Authors: Malisan Johny
Published: January 2019

Tujuan penelitian untuk menganalisis permasalahan terkait kesiapan armada nasional menyongsongpenerapan Asean Economic Community 2015. Hal ini dimaksudkan untuk mendapatkan gambaran skenariolangkah-langkah strategi terutama dalam menghadapi Asean Single Shipping Market sebagai bagian dariKomunitas Ekonomi Asean. Metode penelitian yang digunakan adalah deskriptif yang dilengkapi denganwawancara dan kuesioner. Lokasi penelitian Bitung dan Makassar. Sampel yang digunakan meliputi regulatordan operator pelayaran yang berada dikedua lokasi tersebut. Selanjutnya data dianalisis denganmenggunakan systems thinking melalui scenario planning dalam rangka melihat langkah strategis yang perludisikapi terkait pemberlakuan Komunitas Ekonomi ASEAN 2015.Hasil penelitian menyatakan bahwa masih dijumpai beberapa kelemahan antara lain kompetensi danprofesionalisme SDM pelayaran, kondisi armada nasional, kemampuan freight forwarding, kesiapan fasilitasinfrastruktur pelabuhan, pelayanan bongkar muat dan storage/ warehousing. Oleh karena itu, skenario yangperlu dilakukan mencakup peningkatan kualitas dan profesionalisme SDM pelayaran, pemberiankemudahan finansial (pajak) dan bea masuk untuk kepentingan industri pelayaran dan perkapalan,peningkatan kinerja sarana dan prasana pelayaran serta peningkatan kinerja dan standar teknis keselamatankapal.
Pemberdayaan Pelayaran Rakyat Untuk Angkutan Antar Pulau Dalam Rangka Pengembangan Wilayah Kepulauan Di Kawasan Timur Indonesia
Authors: Malisan Johny , Puriningsih Feronika Sekar
Published: January 2019

Dengan dukungan regulasi (Inpres 5/2005 dan UU/17/2008) Pemerintah berkomitmen untuk mempertahankan pelayaran rakyat yang merupakan warisan budaya bangsa. Namun, keberadaannya terancam punah karena daya saing yang rendah akibat kualitas pelayanan dalam hal keselamatan dan pengawakan yang belum memadai. Kenyataan ini menunjukkan adanya kelemahan baik dari sisi internal pelayaran rakyat maupun sisi eksternal misalnya kebijakan pemerintah maupun faktor lainnya. Penulis melakukan analisis dari sisi internal pelayaran rakyat yakni kemampuan kapal berlayar pada beberapa kondisi cuaca dan gelombang. Pada gugus kepulauan di wilayah Timur Indonesia, armada pelayaran rakyat yang umumnya digunakan berukuran 150 GT.  Hasil analisis terhadap kapal-kapal tersebut membuktikan kemampuannya mengatasi kondisi cuaca(gelombang dan angin), terlihat dari kondisi lengan stabilitas kapal masih memenuhi persyaratan dan momen stabilitas lebih besar dari momen yang ditimbulkan oleh adanya pengaruh gelombang dan cuaca. Oleh karena kekuatan sesungguhnya adalah perbaikan faktor internal dalam diri pelayaran itu sendiri yakni alat keselamatan, kualitas bahan baku kapal dan pengawakan kapal. Perbaikan internal akan berdampak pada kepercayaan penguna jasa terhadap pemberdayaan pelayaran rakyat terutama untuk pelayanan wilayah kepulauan.
Simulation of a Solvate Ionic Liquid at a Polarisable Electrode with a Constant Potential
Authors: Coles Samuel W. , Ivanistsev Vladislav
Published: January 2019

In this article we discuss the nanostructure and calculated the capacitance of a solvate ionic liquid–electrode interfaces, where the electrode has a constant potential, and is thus inherently polarisable. Lithium ions from the lithiumglyme solvate ionic liquid are found within 0.5 nm of the electrode at all voltages studied, however, their solvation environment varies with voltage. Our study provides molecular insight into the electrode interface of solvate ionic liquids, with many features similar to pure ionic liquids. A comparison with previous studies of the same electrolyte using the fixed surface charge boundary condition is also illuminating, informing future computational studies of electrolyte–electrode interfaces.
Atomic Layer Deposition of InN Using Trimethylindium and Ammonia Plasma
Authors: Deminskyi Petro , Rouf Polla , Ivanov Ivan G. , Pedersen Henrik
Published: January 2019

InN is a low band gap, high electron mobility semiconductor material of interest to optoelectronics and telecommunication. Such applications require the deposition of uniform crystalline InN thin films on large area substrates, with deposition temperatures compatible with this temperature-sensitive material. As conventional chemical vapor deposition (CVD) struggles with the low temperature tolerated by the InN crystal, we hypothesize that a time-resolved, surface-controlled CVD route could offer a wayforward for InN thin film deposition. In this work, we report atomic layer deposition of crystalline, wurtzite InN thin films using trimethylindium and ammonia plasma on Si (100). We found a narrow ALD window of 240–260 °C with a deposition rate of 0.36 Å/cycle and that the flow of ammonia into the plasma is an important parameter for the crystalline quality of the film. X-ray photoelectron spectroscopy measurements shows nearly stoichiometric InN with low carbon level (< 1 atomic %) and oxygen level (< 5 atomic %) in the film bulk. The low carbon level is attributed to a favorable surface chemistry enabled by the NH3 plasma. The film bulk oxygen content is attributed to oxidation upon exposure to air via grain boundary diffusion and possibly by formation of oxygen containing species in the plasma discharge.
Predicting the Strength of Stacking Interactions Between Heterocycles and Aromatic Amino Acid Side Chains
Authors: Bootsma Andrea N. , Doney Analise C. , Wheeler Steven
Published: January 2019

Despite the ubiquity of stacking interactions between heterocycles and aromatic amino acids in biological systems, our ability to predict their strength, even qualitatively, is limited. Based on rigorous ab initio data, we have devised a simple predictive model of the strength of stacking interactions between heterocycles commonly found in biologically active molecules and the amino acid side chains Phe, Tyr, and Trp. This model provides rapid predictions of the stacking ability of a given heterocycle based on readily-computed heterocycle descriptors. We show that the values of these descriptors, and therefore the strength of stacking interactions with aromatic amino acid side chains, follow simple predictable trends and can be modulated by changing the number and distribution of heteroatoms within the heterocycle. This provides a simple conceptual model for understanding stacking interactions in protein binding sites and optimizing inhibitor binding in drug design.
Luminescence of Polybromide Defects in Cs4PbBr6
Authors: Jung Young-Kwang , Calbo Joaquin , Park Ji-Sang , Kim Sunghyun , whalley lucy , Walsh Aron
Published: January 2019

Cs4PbBr6 is a member of the halide perovskite family that is built from isolated (zero-dimensional) PbBr64- octahedra with Cs+ counter ions. The material exhibits anomalous optoelectronic properties: optical absorption and weak emission in the deep ultraviolet (310 - 375 nm) with efficient luminescence in the green region (540 nm). Several hypotheses have been proposed to explain the giant Stokes shift including: (i) CsPbBr3 phase impurities; (ii) self-trapped exciton; (iii) defect emission. We show -- within the modern first-principles theory of defects -- that many of the low energy point defects in Cs4PbBr6 lead to the formation of polybromide (Br3) species that exist in a range of charge states. We further demonstrate from excited-state calculations that tribromide moieties are photoresponsive and can contribute to the observed green luminescence. Photoactivity of polyhalide molecules is expected to be present in other halide perovskite-related compounds.
Nanohoop Rotaxanes via Active Template Syntheses and Their Potential in Sensing Applications
Authors: Van Raden Jeff , White Brittany , Zakharov Lev N. , Jasti Ramesh
Published: January 2019

The synthesis of nanohoop rotaxanes via two different active template strategies is reported. By preparing triazole-embedded rotaxanes, the observation of metal binding events in both organic and aqueous conditions are readily observed via dramatic changes in nanohoop emission. Inspired by this result, we then describe the design and synthesis of a new type of "self-destructing" nanohoop rotaxane that, in the presence of an analyte, releases a quenched nanohoop macrocycle resulting in a bright fluorescence response. More broadly, this work highlights the conceptual advantages of combining compact π-rich macrocyclic frameworks with mechanical bonds formed via active-template syntheses.
Synthesis of Simplified Azasordarin Analogs as Potential Antifungal Agents
Authors: Wu Yibiao , Dockendorff Chris
Published: January 2019

A new series of simplified azasordarin analogs was synthesized using as key steps a Diels-Alder reaction to generate a highly substituted bicyclo[2.2.1]heptane core, followed by a subsequent nitrile alkylation. Several additional strategies were investigated for the generation of the key tertiary nitrile or aldehyde thought to be required for activity at the fungal protein eukaryotic elongation factor 2. This new series also features a morpholino glycone previously reported in semisynthetic sordarin derivatives with broad spectrum antifungal activity. Despite a lack of activity against C. albicans for these early de novo analogs, the synthetic route reported here permits more comprehensive modifications of the bicyclic core, and SAR studies that were not heretofore possible.
Reaction Networks and the Metric Structure of Chemical Space(s)
Authors: Rappoport Dmitrij
Published: January 2019

In this paper we develop a formal definition of chemical space as a discrete metric space of molecules and analyze its properties. To this end, we utilize the shortest path metric on reaction networks to define a distance function between molecules of the same stoichiometry (number of atoms). The distance between molecules with different stoichiometries is formalized by making use of the partial ordering of stoichiometries with respect to inclusion. Calculations of fractal dimension on metric spaces for individual stoichiometries show that they have low intrinsic dimensionality, about an order of magnitude less than the dimension of the underlying reactive potential energy surface. Our findings suggest that efficient search strategies on chemical space can be designed that take advantage of its metric structure.
MiMiC: A Novel Framework for Multiscale Modeling in Computational Chemistry
Authors: Olsen Jógvan Magnus Haugaard , Bolnykh Viacheslav , Meloni Simone , Ippoliti Emiliano , Bircher Martin P. , Carloni Paolo , Rothlisberger Ursula
Published: January 2019

We present a flexible and efficient framework for multiscale modeling in computational chemistry (MiMiC). It is based on a multiple-program multiple-data (MPMD) model with loosely coupled programs. Fast data exchange between programs is achieved through the use of MPI intercommunicators. This allows exploiting the existing parallelization strategies used by the coupled programs while maintaining a high degree of flexibility. MiMiC has been used in a new electrostatic embedding quantum mechanics/molecular mechanics (QM/MM) implementation coupling the highly efficient CPMD and GROMACS programs but it can also be extended to use other programs. The framework can also be utilized to extend the partitioning of the system into several domains that can be treated using different models, such as models based on wavefunction or density functional theory as well as coarse-graining and continuum models. The new QM/MM implementation treats long-range electrostatic QM-MM interactions through the multipoles of the QM subsystem which substantially reduces the computational cost without loss of accuracy compared to an exact treatment. This enables QM/MM molecular dynamics (MD) simulations of very large systems.
Halide Ion Micro-Hydration: Structure, Energetics, and Spectroscopy of Small Halide–Water Clusters
Authors: Bajaj Pushp , Riera Marc , Lin Jason K. , Montijo Yaira E. Mendoza , Gazca Jessica , Lab Paesani
Published: January 2019

Replica exchange molecular dynamics simulations and vibrational spectroscopy calculations are performed using halide-water many-body potential energy functions to provide a bottom-up analysis of the structures, energetics, and hydrogen-bonding arrangements in X−(H2O)n=3−6 clusters, with X = F, Cl, Br, and I. Independently of the cluster size, it is found that all four halides prefer surface-type structures in which they occupy one of the vertices in the underlying three-dimensional hydrogen-bond networks. For fluoride-water clusters, this is in contrast with previous reports suggesting that fluoride prefers interior-type arrangements, where the ion is fully hydrated. These differences can be ascribed to the variability in how various molecular models are capable to reproduce the subtle interplay between halide-water and water-water interactions. Our results thus emphasize the importance of a correct representation of individual many-body contributions to the molecular interactions for a quantitative description of halide ion hydration.
Low Potential Prussian Blue Analogs: Manganese Hexacyanochromate
Authors: Wheeler Samuel , Capone Isaac , Day Sarah , Tang Chiu C. , Pasta Mauro
Published: January 2019

Prussian blue analogues (PBAs) have recently shown outstanding electrochemical properties ascribable to their unique open-framework crystal structure that allows the reversible insertion of alkali ions with negligible perturbation to the framework itself. Many hexacyanoferrate materials have shown excellent properties and are some of the most promising sodium- and potassium-ion cathode materials in both aqueous and organic electrolytes. However, there is a distinct lack of candidate PBA materials that operate at low potentials as their characteristic crystalline framework shows instability. In this article we characterise the structure and electrochemical behavior of manganese hexacyanochromate which exhibits reversible sodium insertion at - 0.86 V vs. SHE (1.84 V vs. Na+/Na), whilst maintaining the characteristic PBA cubic structure. This is the lowest redox potential of reported PBA materials and shows fast kinetics in a high voltage water-in-salt electrolyte. Further reduction in potential in an organic electrolyte shows decomposition of the crystalline structure.
A Chemical Theory of Topological Insulators
Authors: Martín Pendás Angel , Contreras-García Julia , Pinilla Fernanda , Mella José Daniel , Cárdenas Carlos , Muñoz Francisco
Published: January 2019

This article presents a chemical description of a simple topological insulators model in order to translate concepts such as "symmetry protected", "surface states" to the chemistry vocabulary
Electrochemical remediation of industrial pharmaceutical wastewater containing hormones in a pilot scale treatment system
Authors: Lima Morais Ruiter , Ferreira Garcia Luane , Kussmaul Gonçalves Moreno Emily , Vieira Thomaz Douglas , De Brito Rodrigues Laís , Barroso Brito Lara , Sanz Lobón Germán , Augusto Rodrigues de Oliveira Gisele , Ferreira Rodrigues Marcella , Gontijo Vaz Boniek , Gil Eric De Souza
Published: January 2019

The elimination of residual drugs from pharmaceutical and domestic sources is a growing concern, as they are able to reach water and soil resources and can present environmental and health risks even in very low concentrations. Traditional water and wastewater treatment systems have not been efficient in the removal of these compounds, evidencing the importance of the development of new remediation methods. In view of the applicability and versatility of electrocoagulation techniques in the removal of pollutants, the aim of this work is to evaluate the parameters:  biochemical oxygen demand (BOD), chemical oxygen demand (COD), color, turbidity, algestone acetophenide (AAc) and estradiol enanthate (EEn) using a pilot treatment system, as well as phytotoxicity and Brine shrimp toxicity. The study showed good removal efficiency, comprising remarkable remediation performance assayed through BOD (61.5%), COD (58.6%), color (83.1%), turbidity (96.7%), AAc (77.0%) and EEn (56.7%) after 30 minutes. For toxicity, raw effluent was considered more phytotoxic for lettuce and cucumber seeds when compared to treated effluent.  The results suggest that the pilot prototype was promising, providing an increase in both the germination potential and the root growth of the seeds (Lactuca sativa and Cucumis sativus) and a significant decrease in the acute toxicity to Artemia salina.
Chromium speciation in leather samples: an experiment using digital images, mobile phone and environmental concepts
Authors: Costa Vinícius , Neiva Ariane , Pereira-Filho Edenir
Published: January 2019

This study proposes a new and simple method for Cr speciation and Cr(VI) determination in leather samples using digital images. The experiments were performed using a mobile phone and a free app called PhotoMetrix that was used to obtain and process data. The results obtained from PhotoMetrix were compared to reference methods using UV−Vis spectroscopy. A statistical evaluation between both proposed and the reference methods using two-sample t-test did not show a significant difference at a 95% confidence level. Bovine leather samples (4 samples) tanned with Cr salts and ovine leather samples (3 samples) tanned with vegetable tannin were analyzed. The proposed method presented limits of detection (LOD) and quantification (LOQ) of 0.6 and 2 mg/kg, respectively. In addition, the proposed method using PhotoMetrix and digital images can provide undergraduate students an opportunity to learn topics such as quantitative analyses, environmental chemistry, speciation chemistry, image processing and treatment of statistical data. The results demonstrated that the proposed method can be applied to routine analyses and in experimental analytical chemistry courses.
Printable Table of Contents. JITE: IIP, Volume 18, 2019
Authors: Cheong Christopher
Published: January 2019

Table of Contents of the Journal of Information Technology Education: Innovations in Practice, Volume 18, 2019
Growth and esterase activity of Fusarium culmorum grown in di(2- ethyl hexyl) phthalate in liquid fermentation
Authors: Ríos-González Naomi Surellem , González-Márquez Ángel , Sánchez Carmen
Published: January 2019

Di (2-ethyl hexyl) phthalate (DEHP) is a plasticizer present in various products, mainly those made with PVC. This phthalate has attracted attention due to its important participation in the contamination of the environment. It has been reported as an endocrine-disrupting compound in mammals. Fusarium culmorum is
a phytopathogenic fungus able to degrade DEHP, because it produces esterases, which are enzymes capable to break down ester bonds present in the structure of phthalates. In this research, growth, protein content and esterases activity by biochemical tests and polyacrylamide gel electrophoresis were characterized for F.
culmorum grown in DEHP-supplemented (100 and 1500 mg/L) media as the only carbon source in liquid fermentation. F. culmorum showed higher biomass production and esterase activity in medium supplemented with 1500 mg of DEHP/L. Zymography revealed that bands with esterase activity were observed after 24 h and 48 h in media supplemented with 1500 and 100 mg of DEHP/L, respectively. It was shown that DEHP is an inducer of esterases and that this compound was used as carbon and energy sources by F. culmorum. This fungus can secrete specific esterase to breakdown high concentrations of DEHP, being a promising organism for bioremediation of DEHP-polluted environments in both aquatic and terrestrial ecosystems.
P. Turin Provv. 3581: An Eighteenth Dynasty Letter from the Valley of the Queens in Context
Authors: Gabler Kathrin , Soliman Daniel
Published: January 2019

This contribution offers the first description, transcription, translation and commentary of a hieratic letter, P. Turin Provv. 3581, and discusses its social context on the basis of the named individuals in the message. In addition, the delivery route of the letter and its find-spot are analysed. The document can be dated to the Eighteenth Dynasty and may have been found in or near one of the tombs from this period in the Valley of the Queens. Seemingly sent from Thebes by the overseer of the treasury Djehutynefer, the letter provides new insights into the administration of Eighteenth Dynasty burials, and indicates that Ineni, the mayor of Thebes, was still involved with the construction of tombs at this time.

ملخص البحث:

تقدم هذه المساهمة الوصف والنصوص والترجمة والتعليق الأولي على البردية الهيراطيقية "(بردية رقم 3581 المتحف المصري في تورينو) "(P. Turin Provv. 3581)، وتناقش سياقها الإجتماعي بناء على الأفراد المذكورين بالرسالة. علاوة على ذلك، فقد تم تحليل مسار توصيل الرسالة وموقع إكتشافها. يمكن أن يرجع تاريخ هذه الوثيقة إلى الأسرة الثامنة عشر وقد تكون قد وجدت في أحد مقابر هذه الفترة بوادي الملكات أو بالقرب منها. كما يتضح من الرسالة، التي يبدو وأنه قد تم ارسالها من طيبة من قبل كبير مراقبي الخزينة "جحوتي نفر"، أنها تقدم رؤى جديدة حول إدارة مراسم الدفن الخاصة بالأسرة الثامنة عشر، وتشير أيضًا إلى أن "إينيني"، عمدة طيبة، كان لا يزال مشتركًا في بناء المدافن في تلك الفترة.
Hak Penambangan Pasir Oleh Masyarakat Lokal di Kecamatan Plosoklaten Kabupaten Kediri
Authors: Bahroni Achmad
Published: January 2019

Penelitian ini bertujuan untuk mengetahui dasar hukum masyarakat lokal dalam melakukan kegiatan penambangan pasir, mengetahui pandangan masyarakat setempat terhadap kegiatan penambangan pasir di Kecamatan Plosoklaten Kabupaten Kediri dan mengetahui kebijakan pemerintah terhadap pelaksanaan hak dan kewajiban atas kegiatan penambangan pasir di Kecamatan Plosoklaten Kabupaten Kediri. Obyek penelitian ini dilakukan di wilayah Kabupaten Kediri, tepatnya di Kecamatan Plosoklaten Kabupaten Kediri, dengan cara pengumpulan data ada dua cara, yaitu metode penelitian kepustakaan dan lapangan yang terdiri dari wawancara dan observasi dilapangan. Data yang dipergunakan dalam penelitian adalah data Primer yaitu data yang diperoleh langsung dari lapangan dengan menggunakan teknik wawancara, dan data sekunder berupa studi kepustakaan.Analisis data yang digunakan adalah analisis kualitatif dengan penarikan kesimpulan secara deskriptif, dan hasil penelitian yang diperoleh adalah dasar hukum penguasaan oleh masyarakat lokal terhadap kegiatan penambangan pasir yang dilakukan di Kecamatan Plosoklaten Kabupaten Kediri yaitu penguasaan secara fisik yag terjadi secara alamiah dan turun temurun, tetapi dasar hukum penguasaan secara fisik saja tidak cukup untuk mengolah dan memanfaatkan sumber daya alam yang ada dalam hal ini masyarakat yang penambangan pasir harus mempunyai ijin Pertambangan Rakyat (IPR) yang diberikan oleh pemerintah setempat dalam hal ini pemerintah daerah Kabupaten Kediri seperti yang tercantum dalam Pasal 1 Ayat 10 Undang-undang No. 4 Tahun 2009 tentang Pertambangan Mineral dan Batu Bara.
The casting process and high temperature oxidation resistance of high chromium cast iron grate bar
Authors: Zhiru Chen , Lei Xu , Linwei Zhao , Youchao Wang , Changyun Li , Guofa Mi
Published: January 2019

The solidification process of a high chromium cast iron grate bar used for sinter machine was simulated, and high temperature oxidation resistance was also investigated. The simulation result shows that sequence solidification can be achieved and no shrinkage cavity and porosity were observed. Based on the analysis of the microstructure, it could be known that the grate bar was well protected by the Fe3O4、Fe2O3 and Cr2O3 oxide films at temperatures lower than 800°C.
Correlation between seismic wave velocity, rock porosity and maximum principal stress based on the laboratory test data
Authors: Chai Jinfei , Wu Shunchuan , Tibbo Maria
Published: January 2019

In order to determine the internal relationships among seismic wave velocity, axial pressure, and rock porosity, the rock samples taken from
NRS170143 borehole of the Nickel Rim South mine are tested using a Hoek
type triaxial cell equipped with axial linear variable differential transducers (LVDTs) and a data acquisition module. The empirical expression between seismic wave velocity and rock pressure is fitted based on the laboratory test data of rock samples. Then, P-V model P-φ model and φ-ε model are created to analyze the laboratory test data. The
results show that: (1) the relationship between axial pressure and rock
porosity can be represented by a new empirical equation φ=a*e-b*P-c. With an increase of axial pressure, the value of rock porosity gradually
decreases below the straight line φ=1% and close to 0. The P-φ model can be a good judge if the pressure has reached the maximum compression pressure in the process of rock compression experiment; (2) The P wave velocity and S wave velocity exponentially increase with increasing axial pressure; Rock porosity and crack density parameter exponentially decrease with increasing axial pressure; (3) there is a linear positive correlation between the ratio of rock porosity to crack density parameter and the ratio of crack thickness to crack length. (4) the relationship between Vp and Vs in each compression test can be fitted to
the linear equation Vp=a*Vs+b; for all different samples of NR170143, the ratios (M) of Vp to Vs ranges from 1.35 to 1.85. In summary, the P-V
model, P-φ model, φ-ε model and Vp-Vs-φ model can intuitively reflect the relationship among seismic wave velocity, axial pressure and rock porosity.
Powerful mobile nodes for enhancing wireless sensor networks' security and lifetime
Authors: Salah Med Saïd , Maizate Abderrahim , Ouzzif Mohamed , Toumi Mohamed
Published: January 2019

To maintain the proper functioning of critical applications based on Wireless Sensor Networks, we must provide an acceptable level of security while taking into account limited capabilities of the sensors. In this paper we proposed a mobile approach to secure data exchanged by structured nodes in cluster. The approach is based on mobile nodes with significant calculation and energy resources that allow cryptographic key management and periodic rekeying. However, mobility in wireless sensor networks aims to increase the security and lifetime of the entire
network. The technical methods used in this paper are based on cryptography elliptic curves and key management through a balanced binary tree. To compare the performance of the proposed approach with other mobile algorithms, we focused on the following metrics: the energy
consumed by normal sensors and cluster heads, the number of packets exchanged during key installation, time to generate and distribute cryptographic keys, and the memory used by the different sensors to store keys.
A nanodiamond for structural biomimetic scaffolds
Authors: Aversa Raffaella , Petrescu Relly Victoria Virgil , Apicella Antonio , Petrescu Florian Ion Tiberiu
Published: January 2019

Bio-mechanically active scaffolds for tissue engineering combining hydrophilic polymeric matrix and nano-diamond fillers properties are presented and discussed in this paper. The resulting scaffolding materials revealed remarkable mechanical and biological properties to be
exploited in advanced biomedical applications. The novel hybrid material is based on 2 and 5 volume % of detonation nano-diamond particles in a hydrophilic poly-(hydroxyl-ethylmethacrylate) matrix. According to its mechanical and biological properties, the nanocomposite
shows a hybrid nature. The base analytical procedures for the preparation of the hybrid nanocomposites and some preliminary mechanical
characteristics are presented. The proposed hybrid system has been considered for potential biomimetic, osteoconductive and osteoinductive scaffolds application in bio-mechanically active bone scaffolds for osteoblast and stem cell differentiation and growth. These more rigid hybrid nano-composites are predicted to possess improved mechanical strength overcoming the mechanical weaknesses of traditional hydrogels clinically utilized for bone regeneration.
Sistemas de informações agrometeorológicas da FUNCEME
Authors: Sakamoto Meiry Sayuri , Andrade Fernando César Moura de , Martins Eduardo Sávio Passos Rodrigues , Carvalho Margareth Sílvia Benício de Souza
Published: January 2019

A agricultura é um dos setores que mais se ressentem da variabilidade e irregularidade das chuvas, típicas do clima semiárido que predomina no Estado do Ceará. Embora seja menos dependente do que a agricultura de sequeiro, culturas irrigadas também sofrem os impac­tos, principalmente, em períodos prolongados de seca quando os reservatórios não recebem aporte de água significativo. Neste artigo são apresentados os principais Sistemas de Infor­mação Agrometeorológica desenvolvidos pela FUNCEME para subsidiar a tomada de decisão para uma gestão sustentável no setor agrícola. São soluções tecnológicas disponibilizadas pela internet e que permitem identificar áreas com potencial de plantio em função da quali­dade da estação chuvosa, estimar o rendimento das culturas de forma antecipada, decidir o momento de plantar e realizar o manejo da irrigação com base nas condições atmosféricas.
AgroClimate – Ferramentas para gestão de riscos climáticos em agricultura
Authors: Fraisse Clyde , Andreis Jose Henrique , Borba Thiago , Cerbar Vinicius , Gelcer Eduardo , Pavan Willingthon , Pequeno Diego , Perondi Daniel , Shen Xiaozhen , Staub Caroline , Uryasev Oxana , Wagner Ana Paula
Published: January 2019

O risco climático é um fator importante a ser considerado na produção agrícola. Produtores rurais estão sempre expostos a ocorrência de anomalias do clima, principalmente anomalias dos níveis de precipitação durante a safra. A informação climática, juntamente com previsões do tempo e do clima, pode ser usada para reduzir riscos, aumentar a eficiência no uso de insumos e a rentabilidade da atividade agrícola. Todavia, o simples fato de fornecer previsões climáticas não é suficiente, produtores precisam incorporar a informação climática no processo de tomada de decisões. O sistema AgroClimate (http://agroclimate.org) foi desenvolvido por pesquisadores e extensionistas de um consórcio de universidades no sudeste dos Estados Unidos com o objetivo de fornecer informações climáticas de forma integrada com os seus efeitos na agricultura no sentido de facilitar o uso deste tipo de informação por produtores rurais da região. As ferramentas incluídas no sistema AgroClimate estão classificadas em seis categorias: clima, rendimento de culturas, manejo de pragas e doenças, calculadores de graus dia e horas de frio, e pegadas de carbono e hídrica. Resultados de pesquisas conduzidas na Universidade da Florida pelo grupo AgroClimate são constantemente incorporados no sistema melhorando as informações fornecidas e contribuindo para aumentar a resiliência da atividade agrícola na região a variabilidade e mudanças climáticas.
Impacto da quantidade e frequência de chuva no rendimento da soja
Authors: Radin Bernadete , Schönhofen André , Tazzo Ivonete Fátima
Published: January 2019

A soja (Glycine max L.), importante cultura no cenário agrícola brasileiro, apresenta elevada variação interanual do rendimento de grãos no Estado do Rio Grande do Sul (RS). Geralmente, a maior parte desta inconstância é devido à irregularidade da quantidade e frequência da precipitação. Neste trabalho, correlacionou-se o rendimento de grãos de soja em seis municípios do RS de 2005 a 2012 com o acumulo da precipitação trimestral de outubro a abril e avaliou-se também o número de dias com chuva e consecutivos sem chuva e seus possíveis efeitos na produtividade da cultura. De acordo com os resultados, 81% da variação do rendimento de grãos pode ser explicada pela precipitação ocorrida de janeiro a março, quando as plantas se encontram em estádio de floração e enchimento de grãos. O aumento no número de dias consecutivos sem ocorrência de chuva ou diminuição do número de dias com chuva agrava o efeito da baixa quantidade de precipitação e impacta negativamente no rendimento da cultura da soja.
Delimitação de regiões agroclimaticamente homogêneas no Brasil
Authors: Monteiro José Eduardo Boffino de Almeida , Victoria Daniel De Castro , Almeida Samira Luns Hatum de , Oliveira Aryeverton Fortes de , Esquerdo Júlio César Dalla Mora , Maciel Renato José Santos , Nakai Alan Massaru , Sibaldelli Rubson Natal Ribeiro , Evangelista Balbino Antonio , Cuadra Santiago Vianna , Evangelista Silvio
Published: January 2019

Uma dificuldade para a elaboração de estudos de zoneamento no Brasil é a inconsistência espacial e temporal das séries de dados meteorológicos no país. O objetivo deste trabalho é delimitar um conjunto de regiões agroclimaticamente homogêneas (RH), baseadas em um processo de agrupamento posteriormente assistido por indicadores espaciais complementares, de forma a permitir zoneamentos espacialmente precisos com menor número de pontos de observação. Uma primeira aproximação das RH foi gerada a partir dos resultados do zoneamento agrícola de risco climático para uma cultura agrícola hipotética, representativa das características médias da maioria dos cultivos anuais do Brasil, gerado a partir de 3500 estações pluviométricas e 1100 estações de temperatura. O agrupamento de elementos para delimitação de regiões foi definido com base na duração e no início dos períodos de plantio. A segunda aproximação consistiu na reavaliação das ZH, aplicando fusão, subdivisão ou reposicionamento de fronteiras das feições iniciais em SIG, utilizando indicadores complementares de altitude, declividade, climatologia de chuvas pelo TRMM, e índice de vegetação otimizado (EVI) e derivados. Foi observado elevado grau de concordância entre as feições da primeira aproximação e os indicadores auxiliares nas regiões com alta densidade de estações. Dessa forma, a metodologia proposta de delimitação assistida se mostra muito promissora para indicar maior detalhamento espacial mesmo em regiões com baixa densidade de estações.
Influência dos sistemas de condução no microclima da videira ‘Chenin blanc’
Authors: Lira Michele Mirian Calixto de , Silva Leide Oliveira Dayane da , Vale Clara Nívea Costa do , Leão Patrícia Coelho de Souza , Moura Magna Soelma Beserra de
Published: January 2019

Objetivou-se analisar a sazonalidade do microclima, índice de área foliar (IAF) e fração da radiação fotossinteticamente ativa interceptada (fPARi) pela videira ‘Chenin Blanc’ em diferentes portas-enxertos nos sistemas de condução em lira e espaldeira no Submédio do Vale São Francisco. O experimento foi realizado durante dois ciclos de produção (2015.2 e 2016.1). Os tratamentos foram representados pelos sistemas de condução lira e espaldeira, e seis porta-enxertos (IAC 313, IAC 572, IAC 766, SO4, Paulsen1103 e Harmony). Foram instaladas duas estações meteorológicas no centro de cada sistema de condução para avaliação da temperatura e umidade relativa do ar, saldo radiação, radiação solar global incidente, radiação solar global refletida, radiação fotossinteticamente ativa, temperatura dos cachos, umidade do solo e temperatura do solo. Nas videiras foram determinados o IAF, a fPARi, a produção e o número de cachos por planta. As condições microclimáticas seguiram o comportamento esperado de sazonalidade das estações do ano com variações entre os sistemas de condução de acordo com a fase de desenvolvimento da videira. O IAF e fPARi foram mais elevados no sistema de condução em lira, para ambos os ciclos produtivos, com diferenças significativas entre porta-enxertos. O sistema de condução em lira incrementou a produção e o número de cachos por planta, obtendo-se uma relação área foliar: massa de cachos no ciclo do 1º semestre de 2016 que evidencia videiras bem equilibradas. Os resultados obtidos serão complementados com outros relativos a qualidade das uvas e dos vinhos da ‘Chenin Blanc’ no Submédio do Vale do São Francisco.
Microclima e evapotranspiração de tomate em dois sistemas de produção no vale do São Francisco
Authors: Campeche Luís Fernando de Souza Magno , Franca Rubem José da Fonte , Leitão Mário De Miranda Vilas Boas Ramos , Silva Jucicléia Soares da , Paz Vital Pedro da Silva
Published: January 2019

O presente trabalho teve como objetivo avaliar o microclima e evapotranspiração de tomate cereja, em ambiente protegido e a céu aberto. O delineamento experimental utilizado foi em blocos casualizados, no esquema fatorial 3 x 3, com 4 repetições, com aplicação de três lâminas e três intermitências de irrigação. Duas estações meteorológicas automáticas foram instaladas nas áreas de cultivo do tomateiro e uma terceira, em ambiente gramado, equipadas com sensores para obtenção de valores de temperatura e umidade relativa do ar, velocidade e direção do vento e radiação solar.  As variáveis climáticas temperatura e umidade do ar não apresentaram diferenças significativas entre os ambientes de cultivo protegido e a céu aberto, diferente da velocidade do vento e radiação global que se mostraram inferiores em relação ao ambiente a céu aberto. A evapotranspiração da cultura no ambiente de cultivo protegido foi inferior a evapotranspiração de referência determinada no ambiente gramado e a evapotranspiração da cultura obtida para o ambiente de cultivo a céu aberto. A radiação global incidente no dossel do tomateiro e a velocidade do vento foram as variáveis climáticas que mais influenciaram a ETc, nos ambientes protegido e a céu aberto. A ETc do tomateiro nos dois ambientes pode ser estimada com base nos valores de ETo determinados em outras condições semiáridas e de cultivo irrigado.
Avaliação de métodos para estimativa da evapotranspiração de referência no estado do Piauí
Authors: Andrade Junior Aderson Soares de , Silva Clescy Oliveira da , Sousa Valdemício Ferreira de , Ribeiro Valdenir Queiroz
Published: January 2019

O estudo objetivou estimar a evapotranspiração de referência (ETo) por métodos que utilizam menor número de variáveis meteorológicas, comparando-os com o método padrão Penman-Monteith. Os dados meteorológicos foram fornecidos pelo Instituto Nacional de Meteorologia (INMET) de 19 estações automáticas localizadas no Estado do Piauí. A estimativa da ETo foi feita para os períodos seco e chuvoso do ano, pelos métodos de Hargreaves & Samani (HS), Priestley-Taylor (PT), Thornthwaite (TH), Thornthwaite com temperatura efetiva (THtef) e Penman-Monteith FAO (PM-FAO). O estudo foi modelado utilizando-se o delineamento inteiramente casualizado para cada estação meteorológica automática. Os métodos estatísticos utilizados na análise foram: teste de Tukey ao nível de 5% de probabilidade (para as médias de ETo), correlação de Pearson, teste de Fisher, regressão linear, coeficiente de Willmott e índice de confiança ou desempenho. O método de PT apresentou desempenho de “bom” a “ótimo” em quase todos os municípios avaliados, notadamente, no período chuvoso. O método de TH não apresentou desempenho satisfatório com relação a PM-FAO. A adoção da correção da estimativa de ETo por TH pelo emprego da temperatura efetiva (THtef) eleva o nível de desempenho das estimativas de ETo com relação a PM-FAO.