bluuebunny/crossref_metadata_2025 huggingface dataset:
PEMODELAN KUALITAS AIR DENGAN PARAMETER BOD DAN DO PADA SUNGAI CILIWUNG
Authors: Budiman Arif
Published: June 2019

Sungai merupakan salah satu sumber daya air alami yang harus dijaga dan dilindungi dari penyebab pencemaran. Oleh karena itu diperlukan upaya pengawasan dan monitoring kualitas air sungai. Tujuan penelitian ini adalah untuk mengetahui hubungan penyebaran polutan dengan BOD (Biological Oxygen Demand) dan DO (Dissolved Oxygen) di perairan. Konsentrasi DO dan BOD pada aliran sungai ditentukan dengan program QUAL2K. Perangkat lunak ini dapat mensimulasikan parameter kualitas air yang menggunakan rumus matematis Streeter-Phelps. Validasi juga dilakukan agar diperoleh hasil simulasi yang lebih mendekati ke nilai dari data observasi. Hasil yang diperoleh dari validasi menunjukkan nilai penyimpangan sebesar 14% untuk BOD dan 24% untuk DO. Setelah model valid, kemudian dilakukan simulasi dari skenario pengaruh pengelolaan beban pencemar dan kondisi sungai untuk menjaga kualitas air sungai. Skenario ini adalah untuk peningkatan pelayanan sanitasi sebesar 50, untuk penggelontoran melaui Bendungan Katulampa dan melayani 100% buangan air limbah domestik di 6 kelurahan di bagian hulu dengan membuat IPAL di kelurahan Babakan Pasaru . Skenario yang paling efektif adalah skenario ketiga yaitu dengan menambahkan IPAL. Konsentrasi BOD pada skenario ini turun sebesar 0.4 mg/L. Skenario ini berubah secara lebih kontinyu.
Keyword : BOD, DO, pollutant loads, Qual2k, validation, scenario
PERENCANAAN PENGUMPULAN DAN PENGANGKUTAN SAMPAH DI KECAMATAN TANGERANG, KOTA TANGERANG
Authors: . Ratnaningsih , Purwaningrum Pramiati , Pusparani Amelia
Published: June 2019

Kecamatan Tangerang mempunyai luas wilayah sekitar 1.578,5 Ha, dengan jumlah penduduk sebesar 148.771 jiwa, Berdasarkan data Dinas Kebersihan dan Pertamanan Kota Tangerang, total timbulan sampah di Kecamatan Tangerang
pada tahun 2010 sebesar 333,25 m 3 /hari dan yang terangkut sebesar 239,94 m 3 /hari, sehingga tingkat pelayanan di Kecamatan Tangerang sebesar 72%. Tujuan dari penelitian ini adalah untuk merencanakan suatu sistem pengumpulan
dan pengangkutan sampah yang lebih efektif dan efisien dengan mencari alternatif dari sistem pengelolaan sampah. Terdapat 2 alternatif yang direncanakan untuk pengelolaan sampah. Alternatif I, yaitu dengan menghitung dump truck sesuai dengan kebutuhan yang diperlukan. Sedangkan, alternatif II dengan perubahan jalur angkut dan pembangunan TPST. Periode perencanaan direncanakan untuk 10 tahun mendatang hingga tahun 2020 yang dibagi dalam 2 (dua) tahap, yaitu Tahap I (Tahun 2014) tingkat pelayanan 76% dan Tahap II (Tahun 2019) tingkat pelayanan menjadi 83%. Pemilahan direncanakan dilakukan di sumber dengan membedakan sampah organik dan anorganik. Pola pengumpulan sampah untuk permukiman dengan rumah permanen kategori A menggunakan pola individual langsung dan pola individual tidak langsung. Untuk permukiman dengan rumah permanen kategori B dan permanen kategori C
menggunakan pola komunal tidak langsung dan pola individual tidak langsung. Untuk non permukiman menggunakan pola individual langsung. Pengangkutan sampah berdasarkan jalur jalan armada yang sudah ditentukan. Sampah yang
telah terkumpul dari pola individual langsung maupun pola individual tidak langsung dibawa ke TPA Rawa Kucing. Pada perencanaan ini direncanakan pembangunan TPST untuk pengolahan sampah. Pembangunan TPST tersebut
berlokasi di Kelurahan Cikokol, dikarenakan masih adanya lahan kosong untuk tempat pengolahan. Sampah yang akan diolah di TPST sebesar 40% dari total timbulan sampah. Tujuan Pembangunan TPST ini juga berupaya mengurangi
sampah yang dibuang ke TPA Rawa Kucing di Kecamatan Tangerang.

Keywords:  waste, collection, transportation, TPST
FOTOKATALISIS ORGANIK KMnO 4 , SURFAKTAN DAN AMONIAK DALAM INLET WADUK MUARA BARU, JAKARTA UTARA, MENGGUNAKAN SINAR UV DENGAN KATALISATOR TiO 2 0,1%
Authors: Lindu Muhammad , . Ratnaningsih , Ardyarini Sekartaji Putri
Published: June 2019

Telah dilakukan studi fotokatalisis terhadap sumber air sungai yang memasuki Waduk Pluit, Muara Baru, Jakarta Utara, yang akan digunakan sebagai sumber air baku air bersih. Terpantau nilai surfaktan, organik KMnO 4 , dan amoniak tinggi berkisar masing-masing 1.8 mg/L, 54 mg/L, dan 1.11 mg/L. Berdasarkan Permenkes Air Bersih No. 416/MENKES/PER/1X/1990, bahwa penggunaan langsung sumber air tersebut sebagai air baku menggunakan metode
konvensional, seperti koagulasi, flokulasi dan sedimentasi berpotensi menghasilkan air olahan yang tidak sesuai dengan baku mutu air bersih. Oleh karena itu pada penelitian ini dilakukan studi fotokatalisis untuk menurunkan kadar-kadar berlebih. Penelitian dilaksanakan di Laboratorium Lingkungan selama bulan Agustus 2011 hingga September 2011. Penelitian dilakukan dalam reaktor batch dengan ukuran 30x20 cm, menggunakan lampu UV-C 15 watt x 2, dan TiO 2 berupa suspensi. Selama percobaan air di suplai udara dengan aerator 220v/100v 18 watt. Studi dilakukan untuk mengetahui pengaruh fotokatalisis sebagai fungsi volume reaktor dan waktu, variasi volume 2-6 liter dan waktu fotokatalisis 0, 5, 15, 30, 45 dan 60 menit dan pengambilan sampel 10 kali. Dari hasil penelitian bahwa volume fotokatalisis yang terbaik adalah 3 liter untuk penurunan kadar organik KMnO 4 dan 4 liter untuk surfaktan dengan efisiensi penyisihan berkisar antara 6.1%-14.8% organik dan 59.8%-87.2% surfaktan, pada waktu fotokatalisis 60 menit. Penurunan kadar organik cenderung mengalami penurunan tetapi fluktuatif. Penurunan kadar surfaktan berbanding lurus dengan waktu. Persamaan kecepatan reaksi untuk surfaktan lebih cenderung pada orde satu dengan konstanta kecepatan reaksi 0,027; 0,023; 0,017; 0,029; 0,02. Sebaliknya pengaruh fotokatalisis terhadap amoniak cenderung meningkatkan kadar amoniak, hal ini diakibatkan adanya
reaksi fotoreduksi. Nilai awal amoniak 1.16 mg/L menjadi 4.93 mg/L pada volume reaktor 4 liter, selama 60 menit. Pengaruh waktu terhadap amoniak, pada awal 5 menit pertama kadar amoniak meningkat, setelah itu terjadi penurunan yang cenderung fluktuatif.

Kata kunci : fotokatalitik, senyawa organik, amoniak, surfaktan, efisiensi
STUDI PENGOLAHAN LUMPUR INSTALASI PENGOLAHAN AIR MINUM TAMAN KOTA - JAKARTA BARAT
Authors: Alfa Julian Dedi , Lindu Muhammad , . Winarni
Published: June 2019

Instalasi pengolahan air minum (IPA) Taman Kota, Jakarta Barat, memiliki kapasitas disain 200 liter/detik, dan air baku berasal dari Cengkareng Drain dan terdapat unit prasedimentasi sebelum air baku masuk ke IPA. Digunakan IPA konvensional yang dilengkapi dengan unit bio filter untuk mengabsorbsi zat organik di air baku. Lumpur berasal dari unit sedimentasi yang dibuang secara rutin setiap 10 menit dengan volume lumpur rerata 144,93 m3/hari dan pada kondisi maksimum 628,30 m3/hari, unit biofilter yang dibuang secara berkala saat dilakukan pengurasan bak yaitu 150,10 m3/hari, serta unit saringan pasir cepat yang membuang air bekas backwash filter secara berkala dan dalam waktu yang singkat sebesar 468,86 m3/hari. Mempertimbangkan perbedaan karakteristik lumpur yang dihasilkan, direncanakan 2 unit tanki penampung (ekualisasi) terpisah yaitu tanki pertama menerima lumpur sedimentasi serta tanki kedua menerima lumpur pengurasan bio filter dan air bekas backwash filter. Memperhatikan luas lahan yang tersedia, maka lumpur sedimentasi yang terkumpul di tanki penampung dipompa menuju ke unit thickener dan selanjutnya ke unit dewatering mekanik. Studi perbandingan dilakukan terhadap 3 opsi peralatan dewatering mekanik dengan mempertimbangkan volume lumpur yang dapat direduksi, biaya investasi, serta biaya operasional dan energi.   Peralatan dewatering mekanik terpilih adalah belt filter press yang mereduksi lumpur sedimentasi menjadi 4,20 m3/hari, dan pada kondisi maksimum menjadi 18,20 m3/hari. 

Keywords: water treatment plant, sludges, backwashed water, dewatering
MODEL TRANSFER PENGETAHUAN ARSITEKTUR TRADISIONAL RUMAH GADANG MINANGKABAU
Authors: Fitriza Rozi
Published: June 2019

Keberadaan Rumah Gadang, sebagai rumah adat suku Minangkabau, tidak terlepas dari perantukang tuo yang tetap menjaga keunikan teknik arsitektur tradisional Rumah Gadang. Agareksistensi Rumah Gadang tetap terjaga, maka harus ada usaha pewarisan pengetahuan arsitekturtradisional. Tulisan ini bertujuan menggambarkan proses transfer pengetahuan arsitekturtradisional Rumah Gadang dari tukang tuo ke generasi penerusnya. Data mengenai proses transferpengetahuan ini penulis peroleh melalui wawancara dengan tukang tuo. Hasil wawancaramenunjukkan 3 (tiga) tahapan utama dalam proses transfer pengetahuan arsitektur tradisionalRumah Gadang. Tahapan proses transfer pengetahuan tersebut bersesuaian dengan teori belajarsosial dan teori belajar sosio-kultural. Hal ini menunjukkan bahwa sangat memungkinkan untukmenjaga kelestarian teknik arsitektur tradisional Rumah Gadang sebagai sebuah local genius.
“Evil Women” and the Paradox of the “Mother Earth” in Lara Foot Newton’s Tshepang: The Third Testament
Authors: Mekusi Busuyi
Published: June 2019

Existing narratives in African literature have substantiated the precarious positions and positioning of female characters who, often times, are constructed as “evil,” monstrous, vindictive, etc. Whereas other artistic productions sympathetic to the conditions of women in African literature have tried to neutralise this despicable femininity through the configuration of effective, productive, urbane and positive social and political female agency, the notion of “evil women” still looms large. Black female characters in South African drama are burdened, in multiple ways, beyond the idea of race and ethnicity, as they are subjected to the whims and caprices of socio-cultural, political and economic disadvantageous orders. It is given the foregoing that this article seeks to interrogate the construction of “evil women” in Lara Foot Newton’s Tshepang: The Third Testament. Using the attributes and manifestations that inhere in the symbolism of “mother earth” in Africa, which has been successively violated and remains divided against itself, the article argues that the commodification of a notable female character in Tshepang: The Third Testament, Margaret, has a negative impact that nurtures evil in her. Margaret is accused of starting the circle that eventually leads to the rape of Baby Siesie (Tshepang) by Alfred Sorrow, who was abused earlier by Margaret. Relying on the manifestations of ecocriticism as they relate to the interrelation between humans and the environment, the article submits that what obtains in most African societies is the reality of an “evil environment,” and by extension an “evil society,” as the proposition of an “evil woman” cannot stand, being that, just like the unpleasant reactions of “mother earth” to the people who degrade her, what the “evil woman” manifests is an aggregation of the treatment meted out to her. The article concludes that caution is required from all players to tame acts of evil in post-apartheid South African society.
50 MANAGEMENT OF COFFEE LEAF MINER: SPRAY VOLUME, EFFICACY OF CARTAP HYDROCHLORIDE AND IMPACT ON PARASITISM
Authors: Melo Thiago Lima , Raetano Carlos Gilberto , Nery Moizés Silva , Cardoso Adriana Dias , Moreira Aldenise Alves , Leite Suzany Aguiar , Jesus Thamires Francisca de , Silva Wesley Gil Oliveira , Castellani Maria Aparecida
Published: June 2019

The leaf miner is a key pest of coffee and the use of insecticides for its control results in high water consumption. The objective in this study was to evaluate the quali-quantitative aspects of reduced spray volumes with and without the addition of adjuvant, the efficacy of the insecticide cartap hydrochloride in the control of the pest and its effects on the parasitism. Two experiments were carried out in coffee plantations in São Desiderio, BA. Initially, solution of Brilliant Blue tracer (0.15% p v-1) of the 43, 112, 146 and 309 L ha-1 volumes was sprayed with and without the soybean oil methyl ester adjuvant (0.25 % v v-1). Before spraying, water-sensitive cards were fixed to the plants and subsequently used for analyze the droplet spectrum in Gotas 1.0 software. The tracer deposit was determined by spectrophotometry. Posteriorly, the insecticide cartap hydrochloride (0.5 kg a.i. ha-1) was applied in the same volumes and types of spray used in the first test. Infestation rates of pest and parasitism were evaluated before and after application of the insecticide. The quali-quantitative aspects of the sprays were affected by the volume of spray applied, by the adjuvant and by the interaction of the factors. The intermediate volumes yielded better spraying quality without the presence of the adjuvante, with higher number and desity of drops. The spraying volume affected the depoisto the Brilliant Blue tracer in a linear and positive form. The efficacy of the insecticide was prolonged with the lowest volume spray and with adjuvant and its impact on parasitism varied with the volume applied and time after application.
Enformasyon Çağında Türkiye
Authors: TUNÇ DEVECİ Tülin , DEMİR Eylül Ece
Published: June 2019

Bilgi ve iletişim teknolojileri (BİT) hem kendi sektöründe hem de diğer sektörlerde üretkenliğin ve yeniliğin artmasını sağlamaktadır. Bu şekilde, BİT’ler ekonomik büyüme ve kalkınma açısından önemli bir sektör olmaktadır. Enformasyon çağında artan iletişim ağları ile birlikte toplumlar içinde ve toplumlar arasında enformasyon alışverişi hız kazanmıştır. Bu süreç dünya ile bütünleşen Türkiye’de ve diğer birçok ülkede ekonomik ve toplumsal boyutta değişim başlatmıştır. Bu çalışmada TÜİK ve TÜBİSAD tarafından yayınlanan bilgi ve iletişim teknolojileri verileri üzerinden toplumsal ve sektörel bir analiz yapılmaktadır. Sonuç olarak, Türkiye’nin bilgi ve iletişim teknolojileri ürünleri talebi hızla artarken, üretiminin bu sürecin çok gerisinde kaldığı belirlenmiştir.
ESTUDO SOCIOAMBIENTAL DA BACIA DO RIO PARDO: IRRIGAÇÃO, MONOCULTURAS E CRISE HÍDRICA
Authors: Cunha Joaci De Sousa , Oliveira Gilca Garcia , Andrade Maicon Leopoldino de
Published: June 2019

Resultado de pesquisa realizada pelo Centro de Estudos e Ação Social, o presente relatório expoe de forma direta, sem maiores análises, os resultados da investigação realizada por seus autores a respeito da problemática socioambiental na bacia hidrográfica do rio Pardo, especialmente em suas porções média, no sudoeste da Bahia, e alta, no norte de Minas Gerais.

De Porto de Santa Cruz, em Cândido Sale saté, até desaguar em Canavieiras, o rio Pardo percorre  345 km em terras baianas do seu trajeto total de 565 km. É verdade que a cada período com menos água. Não por causa exclusiva da redução das chuvas. Mas porque agora suas águas têm dono, ou será que poderíamos dizer expropriadores?...
A DIGNIDADE HUMANA EM CENTROS DE ATENÇÃO PSICOSSOCIAL DO NORDESTE BRASILEIRO
Authors: Barbosa Milena Rocha Nadier , Pitta Ana Maria Fernandes
Published: June 2019

Este ensaio tem por objetivo discutir as limitações morais (KANT, 1980, 1997, 2003) para efetivação dos princípios da política de saúde mental. Para tanto, foram estudados dados obtidos com o projeto Avaliar CAPS Nordeste, uma ação em parceria interinstitucional entre Universidade Federal da Bahia, UFBA, e a Universidade Católica do Salvador, UCSAL cujos objetivos eram mapear a cobertura assistencial e avaliar a situação de CAPS do nordeste do Brasil em relação ao respeito aos direitos humanos de usuários, familiares e profissionais no cotidiano desses Centros de Atenção Psicossocial. Os dados utilizados nesse trabalho referem-se às reclamações de usuários e familiares nesses serviços. Tais dados foram analisados mediante a uma breve revisão de literatura sobre a concepção política dos direitos humanos e a moral que a fundamenta. A análise termina por revelar que são entraves de ordem moral e não necessariamente os políticos ou de ordem prática que impedem a garantida dos direitos humanos nessas instituições.
High-Temperature Synthesis of CdSe-Based Core/Shell, Core/Shell/Shell, and Core/Graded-Shell Nanoplatelets for Stable and Efficient Narrowband Emitters
Authors: Rossinelli Aurelio A. , Rojo Henar , Mule Aniket S. , Aellen Marianne , Cocina Ario , De Leo Eva , Schäublin Robin , Norris David J.
Published: June 2019

Colloidal semiconductor nanoplatelets exhibit exceptionally narrow photoluminescence spectra. This occurs because samples can be synthesized in which all nanoplatelets share the same atomic-scale thickness. As this dimension sets the emission wavelength, inhomogeneous linewidth broadening due to size variation, which is always present in samples of quasi-spherical nanocrystals (quantum dots), is essentially eliminated. Nanoplatelets thus offer improved, spectrally pure emitters for various applications. Unfortunately, due to their non-equilibrium shape, nanoplatelets also suffer from low photo-, chemical, and thermal stability, which limits their use. Moreover, their poor stability hampers the development of efficient synthesis protocols for adding high-quality protective inorganic shells, which are well known to improve the performance of quantum dots.

Herein, we report a general synthesis approach to highly emissive and stable core/shell nanoplatelets with various shell compositions, including CdSe/ZnS, CdSe/CdS/ZnS, CdSe/CdxZn1–xS, and CdSe/ZnSe. Motivated by previous work on quantum dots, we find that slow, high-temperature growth of shells containing a compositional gradient reduces strain-induced crystal defects and minimizes the emission linewidth while maintaining good surface passivation and nanocrystal uniformity. Indeed, our best core/shell nanoplatelets (CdSe/CdxZn1–xS) show photoluminescence quantum yields of 90% with linewidths as low as 56 meV (19.5 nm at 655 nm). To confirm the high quality of our different core/shell nanoplatelets for a specific application, we demonstrate their use as gain media in low-threshold ring lasers. More generally, the ability of our synthesis protocol to engineer high-quality shells can help further improve nanoplatelets for optoelectronic devices.
Asymptotic Behavior of the Hartree-exchange and Correlation Potentials for Fractional Electron Numbers in Atoms
Authors: Gould Tim , Pittalis Stefano , Toulouse Julien , Kraisler Eli , Kronik Leeor
Published: June 2019

We report on previously unnoticed features of the exact Hartree-exchange and correlation potentials for atoms with fractional electron numbers. We show that these potentials, when treated separately, can reach non-vanishing asymptotic constant values in the outer region of spherical, spin unpolarized atoms. In the next leading order, the potentials resemble Coulomb potentials created by effective charges which have the peculiarity of not behaving as piecewise constants as a function of the electron number. We provide analytical derivations and complement them with numerical results using the inversion of the Kohn-Sham equations for interacting densities obtained by accurate quantum Monte Carlo calculations. The present results expand on the knowledge of crucial exact properties of

Kohn-Sham systems, which can guide development of advanced exchange-correlation approximations.
Cu-Catalyzed Hydroboration of Benzylidenecyclopropanes: Reaction Optimization, (Hetero)Aryl Scope, and Origins of Pathway Selectivity
Authors: Medina Jose , Kang Taeho , Erbay Tuğçe , Shao Huiling , Gallego Gary , Yang Shouliang , Tran-Dubé Michelle , Richardson Paul , Derosa Joseph , Helsel Ryan , Patman Ryan , Wang Fen , Ashcroft Christopher , Braganza John , McAlpine Indrawan , Liu Peng , Engle Keary
Published: June 2019

The copper-catalyzed hydroboration of benzylidenecyclopropanes, conveniently accessed in one step from readily available benzaldehydes, is reported. Under otherwise identical reaction conditions, two distinct phosphine ligands grant access to different products by either suppressing or promoting cyclopropane opening via β-carbon elimination. Computational studies provide insight into how the rigidity and steric environment of these different bis-phosphine ligands influence the relative activation energies of β-carbon elimination versus protodecupration from the key benzylcopper intermediate. The method tolerates a wide variety of heterocycles prevalent in clinical and pre-clinical drug development, giving access to valuable synthetic intermediates. The versatility of the tertiary cyclopropylboronic ester products is demonstrated through several derivatization reactions.
Catalytic, Transannular Carbonyl-Olefin Metathesis Reactions
Authors: Riehl Paul , Nasrallah Daniel , Schindler Corinna
Published: June 2019

A new class of Lewis acid-catalyzed carbonyl-olefin metathesis reactions is described that complements existing protocols for related ring-closing, ring-opening, and intermolecular transformations. These transannular carbonyl-olefin metathesis reactions rely on FeCl3 as an inexpensive Lewis acid catalyst and are mechanistically distinct from previously developed protocols for ring closing, ring-opening and intermolecular metathesis. Specifically, carbonyl-ene and carbonyl-olefin metathesis reaction paths are competing to ultimately favor metathesis as the thermodynamic product. Importantly, we show that distinct Lewis acid catalysts are able to differentiate between these pathways to enable the selective formation of transannular carbonyl-ene or carbonyl-olefin metathesis products thus providing a valuable approach to the molecular editing of naturally occurring complex molecules. Additionally, these results are expected to enable further advances in catalyst design for carbonyl-olefin metathesis to ultimately develop efficient and high-yielding catalytic carbonyl olefination reactions.
Modification of Chitosan Based on Computer Simulation and Its Application as Biomaterial
Authors: Heggnnavar Gurmohinder
Published: June 2019

Modification of chitosan has become an important means to obtain chitosan polymers with better properties. In recent years, the application properties of chitosan have been greatly improved by modification, crosslinking, grafting and other modification methods. In order to improve its poor solubility and weak stability and expand its application scope, physical and chemical methods are often used to modify chitosan. As an important natural biomaterial, the modification and application of chitosan have attracted wide attention. This paper briefly summarizes the degradation and modification methods of chitosan at home and abroad and its research results in biomedicine. The interaction of the interface of the knife polymer composite system and the bonding effect of the coupling agent on the interface of the composite were analyzed by computer simulation. The simulation results show that the interaction between the surface and the three polymer segments is the strongest. These results indicate that chitosan is a kind of biomaterial with excellent performance and has broad application prospects.
Synthesis of Conjugated Triynes via Alkyne Metathesis
Authors: Manguin Romane , Curbet Idriss , Clermont Anthony , Quelhas Alexandre , Müller Daniel S. , Roisnel Thierry , BASLE Olivier , Trolez Yann , MAUDUIT Marc
Published: June 2019

The synthesis of conjugated triynes by molybdenum-catalyzed alkyne metathesis is reported. Strategic to the success of this approach is the utilization of sterically-hindered diynes that allowed the site-selective alkyne metathesis to produce the desired conjugated triyne products. The steric hindrance of alkyne moiety was found to be crucial in preventing the formation of diyne byproducts. This novel synthetic strategy was amenable to self- and cross-metathesis providing straightforward access to the corresponding symmetrical and dissymmetrical triynes with high selectivity (up to 98%).
FIRM VALUATION CONCEPT AND DISCOUNTED CASH FLOW METHOD: A COMPARISON OF STOCK MARKETS
Authors: BASCI Esref Savaş
Published: June 2019

Company (or firm) valuation – an evaluation process of a company to appreciate the value of a company’s right in this company or business. There are two objective and subjective aspects of value. The subjective value is the value determined by individuals and desires. For example, it is a subjective decision that the investor assesses the competitor over the normal to be monopoly in the market. The objective value is the value determined by the cost and benefits of the goods and services.Although there are many performance measures that measure company success, none is as comprehensive as value. There is a strong and linear relationship between a company’s market value and its discounted cash flows. Because earnings are used to generate the income statement, they cannot be used to measure cash flows.Firm valuation means seeking the goal of the firm which is listing it on the Stock Exchange. Real value of the firm can be calculate with different methodologies. These methods are related to future expectations or background of the firm’s financial data. Discounted Cash Flow (DCF) Method is one of the firm valuation methods used all around the world and it is accepted by the experts.Market value is also used for comparison and performance measurement purposes. Valuation of a company’s future expectations, current status, mergers or acquisitions is extremely important. Even the firm value can be used to compare the capital markets of countries. In our study, capital markets and total market values of selected countries are compared. The increase in the share price increases the market value of the company. Therefore, the aim of the firms should be to increase the shareholder value or to take decisions to increase the stock price.
DOES THE USE OF STRATEGIC MANAGEMENT ACCOUNTING TECHNIQUES CREATES AND SUSTAINS COMPETITIVE ADVANTAGE? SOME EMPIRICAL EVIDENCE
Authors: OYEWO Babajide , AJIBOLADE Solabomi
Published: June 2019

This study examined the extent to which the usage of strategic management accounting (SMA) techniques such as customer accounting and competitor accounting can create and sustain competitive advantage, with a focus on the manufacturing sector in Nigeria. Data obtained from the annual reports of fifty-six (56) publicly-quoted companies covering a 10-year period (2008-2017) were analysed using descriptive statistics, cluster analysis, cross tabulation, Chi-square test of association, and discriminant analysis. Whereas the frequency of high-adopters of customer-based and competitor-focused techniques was less than those of low-adopters, the adoption rate of SMA was noted to be generally moderate. Further, the usage of SMA positively and significantly impact competitive advantage. The observation that intense users of SMA were able to consistently outperform competitors at both the industry- and sector- level in the long-term supports the conclusion that to a large extent, SMA usage can both create and sustain competitive advantage. Seeing that it is not the mere adoption of SMA that sustains competitive advantage but its intense usage, organisations seeking strategies to improve their competitiveness may consider the rigorous application of SMA.
Synthesis of FexZn1-xCr2O4 brown ceramic pigment by starch-assisted sol-gel process
Authors: Tuyen Tran Ngo , Quyen Nguyen Duc Vu , Lam Tran Bao
Published: June 2019

In the present paper, the ceramic pigments FexZn1-xCr2O4 (x = 0 ¸ 1) were synthesized with the starch-assisted sol-gel method. The resulting pigments were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and CIE L*a*b* color measurement. The results show that FexZn1-xCr2O4 pigments form at sintering temperature of 1100 OC for 60 minutes. The ACr2O4 spinel (A: Zn, Fe) and FeCrO3 perovskite phase with excellent crystallinity appears. The brown color intensity increases gradually with the increase of the number of substituted Fe2+ cations. The pigments meet industrial requirements in terms of physicochemical characteristics.
Mineral compositions of magmatic dikes cutting across Khe Phen granites (Huong Tra, Thua Thien Hue, Central Vietnam)
Authors: Thuy Nguyen Thi , Le Huyen Nguyen Thi , Ngoc Tram Nguyen Thi , Nghia Le Hai
Published: June 2019

The Khe Phen granite quarry located in Huong Tra district (Thua Thien Hue province) has been confirmed as a part of the Ba Na granitoid complex (G/K2bn), mostly composed of two-mica granite and porphyritic granite. Field survey data show that the granites here are cut across by five distinct narrow dikes (about 50–70 cm wide), including granite pegmatite, granite aplite, aplite, granodiorite, and lamprophyre. The mineral compositions of the granite pegmatite and aplite dikes are similar to those of the host granite, which is mainly comprised of quartz (27–35%), orthoclase (45–58%), plagioclase (4–15%), biotite (1–3%), and a few opaque minerals. Meanwhile, the granodiorite and lamprophyre dikes are melanocratic and compositionally much more mafic, particularly lamprophyre, evidenced by a presence of hornblende (50–55%), plagioclase (33–40%), quartz (3–15%), calcite (5–17%), etc. The origin and emplacement age of the latter dikes have not been reported so far and thus, are needed for further studies based on geochemical and isotopic data.
Kesiapan UMKM Dalam Implementasi SAK EMKM Pengrajin Mebel DesaCatak Gayam, Mojowarno
Authors: Lestari Evi Puji
Published: June 2019

SAK EMKM merupakan standar akuntansi yang dikhususkan untuk entitas yang tidak memiliki akuntabilitas publik seperti UMKM. SAK EMKM mulai diberlakukan sejak tanggal 1 Januari 2018. SAK EMKM diterbitkan untuk mempermudah UMKM dalam menyusun laporan keuangan. Penelitian ini dimaksudkan untuk mengetahui kesiapan UMKM dalam mengimplementasikan SAK EMKM.Metode penelitian yang digunakan adalah metode deskriptif kualitatif, yang bertujuan untuk menggambarkan kondisi riil UMKM pengrajin mebel. Data yang digunakan yaitu, data primer yang diperoleh melalui teknik observasi, wawancara, dan dokumentasi pada 3 UMKM pengrajin mebel Desa Catak Gayam Kecamatan Mojowarno yang mewakili kriteria sebagai usaha mikro, kecil, dan menengah. Teknik analisis data menggunakan analisis model Miles dan Huberman.Hasil penelitian pada 3 UMKM pengrajin mebel yaitu UD DJ, UD Abadi Jaya Mebel, dan Mebel Morodadi ditemukan bahwa ketiga UMKM tersebut belum siap menerapkan SAK EMKM dalam laporan keuangan mereka. Hal tersebut dikarenakan ketiganya belum mengetahui dan memahami tentang SAK EMKM, belum pernah membuat laporan keuangan yang berpedoman pada standar akuntansi keuangan, tidak ada pegawai khusus untuk menyelenggarakan pembukuan.
中西医结合治疗老年功能性便秘的新思路
Authors: 孙 永毅
Published: June 2019

目的：探索中西医结合治疗老年人功能性便秘的新思路。方法：根据治疗顺序选择2017年3月至2018年1月收治的78例功能性便秘老年患者。首先接受治疗的39名患者接受聚卡波非钙治疗，并作为对照组。然后设研究组，在对照组的基础上，采用中医疗法观察临床疗效。结果：研究组总有效率为94.8％，对照组总有效率为79.4％（P＜0.05）。结论：中西医结合治疗老年人功能性便秘更为有效。
Physicochemical properties and sensory evaluation of yogurt nutritionally
enriched with papaya
Authors: Othman N. , A. Hamid Hazren , Suleiman N.
Published: June 2019

Yogurts are one of the most consumed dairy products, especially in Western and Middle
East countries. Papaya is an abundant tropical fruit that contains much higher levels of
vitamins and minerals than other tropical fruits. The aim of this work was to develop a
protein-rich papaya-flavored yogurt as an inexpensive, nutritionally balanced, healthy
snack. The influenced of adding papaya puree at different percentages (5, 10, 15, 20, 25%)
on physicochemical and rheological have been explored. This work also investigated
consumer preferences in relation to these yogurts, using ratings made by thirty Malaysian
participants on a five-point hedonic scale. The addition of papaya to the pure yogurt (up to
25% by weight) increased the product’s crude protein content by up to 46% and reduced
its fat content by up to 27%. Nevertheless, the addition of 20% of papaya puree to the
yogurt was the most preferred according to sensory evaluation. On most of the attributes
tested, participants gave higher ratings for the yogurt nutritionally enriched with papaya
than for the pure yogurt. The enrichment of natural yogurt with papaya puree showed to
be effective with higher nutritional characteristics.
Actividad antioxidante in vitro, de diferentes extractos del fruto de Physalis peruviana L. (aguaymanto)
Authors: Chau Miranda Gina , Herrera-Calderón Oscar , Condorhuamán Figueroa Martin
Published: June 2019

Objetivo. Evaluar la actividad antioxidante in vitro de los diferentes extractos obtenidos del fruto de Physalis peruviana L. (aguaymanto) y fruto fresco mediante el método DPPH, ABTS; los componentes fitoquímicos cualitativamente y cuantificar el contenido ácido ascórbico (vitamina C). Materiales y Métodos. Se obtuvo el extracto acuoso y acuoso liofilizado a partir del fruto de Physalis peruviana L., y el zumo fresco del cual se determinó el screening fitoquímico preliminar, la captación del radical DPPH, ABTS y el contenido de ácido ascórbico. Resultados. En el screening fitoquímico se hallaron compuestos fenólicos, flavonoides, alcaloides, saponinas y aminoácidos. El fruto y los extractos evidenciaron moderada capacidad antioxidante frente al trolox y presentó un porcentaje de capacidad antioxidante menor al 50% frente al trolox. A partir del porcentaje de inhibiciónconcentración en el DPPH y mediante un análisis lineal se determinó la CI50; Se demostró que el extracto acuoso liofilizado posee mayor capacidad antioxidante (20,55 µg/mL) en comparación con el extracto acuoso y fruto fresco. Mediante el método del ABTS también se observó mayor capacidad antioxidante del extracto acuoso liofilizado (2,48 ± 0,04 µmol trolox/g muestra), pero presentó menor cantidad de vitamina C en comparación con el extracto acuoso y fruto fresco. Conclusiones. El extracto acuoso liofilizado posee mayor capacidad antioxidante y menor cantidad de ácido ascórbico en comparación con el extracto acuoso y el fruto fresco y la mayor cantidad de vitamina C se encuentra en el fruto fresco.
A Study of Small and Medium - Scale Enterprises (SMES) Owners’ Resources Mobilisation and Innovative Culture in South-West, Nigeria
Authors: Bukki Abolaji Olugbenga , Oguntimehin Yekinni Abiodun , Adeyemi 'Muyiwa
Published: June 2019

This study examined resource mobilisation and innovative culture of small and medium-scale enterprises (SMEs) owners in South-West, Nigeria. Five research questions were raised. The study adopted the descriptive survey research design. The sample comprised one thousand, four hundred and seventeen (1417) SME owners / managers out of which one thousand, three hundred and eighty-two (1382) responded appropriately, this showed 97% response rate. Data were collected using two instruments; these are Resource Mobilisation Questionnaire (r = 0.85) and Innovative Culture Scale (r = 0.68). Data were analysed using descriptive statistics, Pearson Product Moment Correlation and Independent t test.The results showed that SME owners possessed high level of resource mobilisation and innovative culturein South-West, Nigeria. Significant relationship existed between resource mobilisation and innovative culture of SME Owners’ in South-West, Nigeria. Furthermore, there was significant difference in the score on resource mobilisation of SME Owners while no significant difference existed in the score on innovative culture of SME Owners in South-West, Nigeria. Based on the findings, it was recommended among others that Government agencies should create strategies to improve resource mobilisation. This, in turn, will upgrade and enhance innovation among SMEs.
Kajian Penerapan Aturan Klasifikasi Pada Laminasi Struktur Konstruksi Lambung Kapal Ikan Fiberglass 3 GT
Authors: Marzuki Ismail , Zubaydi Achmad , Ma'ruf Buana
Published: June 2019

Material fiberglass masih menjadi alternatif dalam pembuatan kapal di Indonesia, hal ini terlihat dari banyaknya kapal ikan berbahan fiberglass pesanan KKP pada tahun 2016. Penelitian ini bertujuan untuk melakukan tinjaun sejauh mana penerapan aturan klasisfikasi pada proses produksi pembangunan kapal ikan 3 GT dengan melakukan pengujian kuat tarik dan kuat tekuk terhadap spesimen laminasi kapal ikan FRP 3 GT yang diambil dari dua galangan yang sedang membangun kapal ikan pesanan Kementrian Kelautan dan Perikanan (KKP) tahun 2016, dimana proses pembangunannya mengacu pada persyaratan pengujian dalam Biro Klasikasi Indonesia (BKI) tahun 2015, yang memakai International Standard (ISO) 527-4 (1997) untuk uji tarik, dan ISO 14125 (1998) untuk uji bending. Spesimen yang akan di uji masing-masing diambil dari bagian lunas (keel), alas (bottom) dan sisi (side). Secara keseluruhan hasil yang diperoleh dalam penelitian ini adalah mengevaluasi dari laminasi struktur konstruksi yang pada penerapanya tidak memenuhi dari aturan klasifiaksi dan juga memeberikan alterbatif susunan laminasi optimal untuk diterapkan dalam pembangunan kapal ikan 3 GT berbahan fiberglass. Penelitian ini juga nantinya dapat berkonstribusi dalam penyususnan standarisasi untuk kapal-kapal fiber berukuran kecil.
Sandwich Panel Manufacturing Method In Form of Test Specimens For Ship Construction
Authors: Utomo Edy , Zubaydi Achmad , Budipriyanto Agung
Published: June 2019

Sandwich panel as a composite materials require special method of manufacture, to produce the best of physical condition. This study give the manufacturing process of sandwich panel for the purpose of testing the strength of material. Sandwich panel created with molding method for simplify the process of work and can be repeated if a failure occurs. Saveral failures occur in creating process until preparation specimen process that are influenced by saveral things, such as damage caused by the temperature of the sun, difference in viscosity between the layers of the conditions faceplate (smooth and rough), and the method of cutting the sandwich panel which requires cutting methods at low temperatures and does not produce the high vibration to avoid damage to the material before material strength test were performed.
Desain Propeller Kapal Selam 29 meter Dengan Menggunakan Propeller B-Series
Authors: Kusuma Cahya , Ariana I Made
Published: June 2019

Kapal selam mini 29 meter dengan diameter  hull 3 meter dan displacement 130T sangat cocok untuk perairan Indonesia barat yang dangkal karena memiliki beberapa kelebihan. Perhitungan powering terutama tahanan kapal dilakukan dengan menggunakan metode MIT dan metode kapal pembanding untuk mendapatkan koefisien Admiral. Berdasar dari hasil perhitungan kedua metode tersebut dilakukan perancangan propeller. Propeller didesain dengan menggunakan Propeller B series. Penggunaan propeller B-series lebih disebabkan karena kelengkapan data dan informasi performa serie tersebut bila dibandingkan dengan seri propeller lainnya.  Dari analisa kebutuhan thrust dan ketersediaan daya mesin, maka propeller B5-60 ternyata layak dipakai sebagai propulsor kapal selam mini 29 m.
Kajian Waktu Evakuasi Dengan Metode Simplified Pada Kapal Perintis
Authors: Priohutomo Kusnindar , Rolly Budi
Published: June 2019

Salah satu penyebab besarnya korban jiwa dalam sebuah kecelakaan kapal di jalur pelayaran adalah dikarenakan kurangnya informasi mengenai jalur atau rute evakuasi yang harus dilalui penumpang bila terjadi kecelakaan. Oleh sebab itu kajian mengenai jalur evakuasi utama didalam sebua kapal saat terjadinya kecelakaan perlu dilakukan dengan cermat. Terutama untuk kapal yang mengangkut banyak penumpang seperti kapal perintis. Pada paper ini akan dibahas mengenai kajian waktu evakuasi penumpang di kapal dengan metode simplified berdasarkan ketetapan dari IMO. Agar dapat mengetahui apakah waktu yang diperlukan penumpang untuk keluar dari kapal sudah memenuhi standart dari IMO. Beberapa parameter dibuat tetap seperti kecepatan orang berjalan yaitu 0.8 m/s. Dari hasil perhitungan yang dilakukan, waktu evakuasi seluruh penumpang pada kapal perintis masih dibawah standart dari IMO yaitu sekitar 56 menit 22 detik. Dimana titik kritis terdapat pada main deck dan titik kepadatan terdapat pada corridor di lantai tiga atau crew deck. Dimana terdapat 118 orang yang berkumpul untuk menuju tangga ke lantai empat atau bridge deck
Kajian Pemanfaatan Energi Arus Laut Di Indonesia
Authors: Kasharjanto Afian , Rahuna Daif , Rina Rina
Published: June 2019

Masih belum banyak lembaga penelitian yang melakukan kegiatan penelitian tentang potensi energi arus laut di Indonesia. Tetapi mengingat cadangan sumber energi fosil yang semakin lama akan terus berkurang, maka penelitian tentang potensi energi ini harus terus dilakukan .Untuk tujuan tersebut, Pemerintah telah mengeluarkan sejumlah kebijakan agar penelitian mulai lebih fokus pada pengembangan energi terbarukan khususnya dari laut, mengingat Indonesia sebagai Negara Kepulauan yang memiliki banyak Selat.Pemerintah telah berkomitmen untuk dapat meningkatkan kontribusi Energi Baru Nasional dari 17% saat ini menjadi 23 % pada tahun 2025 nanti. Turut berkontribusi dalam semangat tersebut,Balai Teknologi Hidrodinamika (BTH) telah meng-inisiasi kegiatan penelitian sumber energi arus laut melalui penelitian berbagai tipe turbin Poros vertikal sejak  tahun 2006. Terakhir pada tahun 2017 telah dilakukan uji kinerja Turbin Ganda (twin turbine) di Jembatan Suramadu.Meskipun belum mencapai hasil maksimal, tetapi hasilpenelitian tersebut diharapkan dapat meng-inisiasi dan dijadikan sebagai referensi bagi kegiatan penelitian Turbin arus laut lainnya. Penelitian juga telah menghasilkan dua buah sertifikat Paten. Paper ini hanyalah sebagai informasi perkembangan penelitian energi arus laut di BTH dan prospek ke depannya bagi pengembangan penelitian di Indonesia
Algoritma Filter Kalman Pada Pengukuran Beban Motor DC Dengan Metode Labview
Authors: Syamsuar Sayuti
Published: June 2019

Pemodelan matematika dan sistem identifikasi merupakan suatu proses yang lengkap dalam industry atau system dinamika. Demikian juga halnya struktur-struktur model linier mempunyai banyak kegunaan sebagai langkah awal dalam pengetahuan pemodelan dan aplikasi sistem kontrol Lab View menggunakan algoritma Filter Kalman pada eksperimen motor DC di laboratorium. Analisa dalamdomain waktu (t) , kita menggunakan fungsi ramp, step dan sinusoidal sebagai fungsi input (t) terhadap model matematika orde 2 dari pembebanan dinamik motor DC. Dan, kita memperoleh respons waktu (t) yang berosilasi dengan faktor redaman (ζ) yang berbeda-beda pada kasus ini. Metodologi ini dapat dikembangkan ke arah analisa stabilitas dan pengendalian pada kapal dan pesawat udara.
Optimalisasi Penempatan Sensor Untuk Pengukuran Distribusi Tekanan Model Kapal Bersayap
Authors: Nasir Muchammad , Syafiul Ahmad
Published: June 2019

Efek fenomena hidrodinamika yang perlu dikaji dalam perancangan operasional proses pendaratan model WISE (Kapal bersayap) di air adalah masalah hydrodynamic impact pada konfigurasi badan (main hull) dan pontoon, untuk itu perlu dilakukan uji model proses landing pada model kapal bersayap tersebut.  Untuk mengetahui hydrodynamic impact pada main hull dan pontoon model kapal bersayap di pasang beberapa sensor tekanan. Sebelum dilakukan Pemasangan sensor perlu dilakukan Simulasi pemodelan dengan menggunakan program komputer dengan menggunakan metode elemen hingga (FEM). Pada simulasi pemodelan ini main hull dan pontoon model kapal bersayap digambarkan dalam bentuk 3 Dimensi. Dari hasil simulasi dapat diperoleh distribusi tekanan yang terjadi pada main hull dan pontoon pada saat model dijatuhkan ke air, sehingga dapat digunakan sebagai acuan untuk optimalisai penempatan sensor tekanan pada model kapal bersayap.
Perancangan Sistem Autopilot untuk Kontrol Kemudi Model Kapal Mengunakan Programable Automatic Controller Ni Compactrio
Authors: Yuniati Yuniati
Published: June 2019

Perancangan sistem autopilot pada sebuah alat/sistem kemudi mempunyai peranan sangat penting, yang nantinya akan mempengaruhi hasil akhir dan kinerja sistem kemudi yang akan dijalankan. Paper ini membahas tentang perancangan sebuah sistem kontrol/pengendali otomatis yang dapat diprogram dengan menggunakan CompactRIO NI cRIO sebagai perangkat yang menjalankan sistem Autopilot. Perancangan sistem autopilot ini divalidasi melalui simulasi uji zig-zag model kapal dan dari hasil validasi ini didapatkan bahwa sistem kontrol ini berfungsi dan mampu melakukan lintasan zig-zag sesuai yang diharapkan.
Strategi Daya Saing Industri Galangan Kapal Surabaya
Authors: Hidayat Taufik
Published: June 2019

Perkembangan industri galangan kapal nasional pada dua dekade terakhir sangat lambat. Tingkat produktivitas dan kapasitas yang rendah menyebabkan industri galangan kapal nasional tidak berdaya saing. Daya saing industri galangan kapal nasional dipengaruhi oleh daya saing industri dan daya saing nasional, sehingga permasalahan industri galangan kapal harus dipecahkan secara komprehensif, disertai langkah-langkah strategik dan sistematis agar dapat bersaing secara berkesinambungan. Seperti yang diadopsi oleh sebagian besar industri galangan kapal terkemuka di dunia, strategi korporasi dan bisnis diperlukan untuk membuat industri galangan kapal mempunyai daya saing yang berkelanjutan. Sifat alami yang berbeda dengan industri lain membuat industri galangan kapal membutuhkan formulasi strategi khusus. Model formulasi Yardstrat dapat memformulasikan strategi korporasi dan bisnis pada industri galangan kapal karena dikembangkan berdasarkan karakteristik bisnisnya. Formulasi ini terdiri dari tiga tahapan (input stage, matching stage, dan decision stage). Sebagai input identifikasi factor-faktor internal dan tingkat respon perusahaan terhadap factor-faktor eksternalnya dilakukan melalui kuesioner responden yang di evaluasi oleh expert judgement. Penelitian ini menghasilkan pilihan - pilihan strategi untuk menciptakan daya saing yang berkelanjutan. Hasil dari formulasi menyimpulkan bahwa perlunya penguasaan terhadap pasar domestik, pemfokusan pengembangan produk tertentu, dan integrasi-integrasi antar pelaku pasar.
Bringing method to the madness: An example of integrating social science qualitative research methods into NVivo data analysis software training
Authors: Swygart-Hobaugh Mandy
Published: June 2019

It is not uncommon for researchers who wish to delve into qualitative data analysis to be lacking in qualitative methods training. Data professionals who support these aspiring qualitative researchers are well positioned to recognize and develop resources, training, and services to address this methods gap. This article describes a specific training session aimed at bridging this gap: a collaboration between a sociology professor and the author that integrates a qualitative methodological framework with specific features of NVivo qualitative data analysis software that complement and facilitate research guided by that framework. This article (1) outlines how this collaboration came to be; (2) describes the roles that the sociology professor and the author play in the collaboration, including specific examples from the training session; and (3) offers a reflection on the experience, including successes and growth possibilities going forward.
Where is QDA hiding? An analysis of the discoverability of qualitative research support on academic library websites
Authors: Cain Jonathan , Cooper Liz , Demott Sarah , Montgomery Alesia
Published: June 2019

This study explores the discoverability of qualitative research support services, using a purposive sample of academic library websites (n=95). These services were hard to find on most of the websites in our sample.  In this paper, we outline the site characteristics that make discoverability easy or hard.  Previous studies on qualitative resources at academic libraries have not addressed this topic.  Our study fills this gap in the literature.  Our aim is to provide information that can help libraries to improve the visibility of their resources for qualitative researchers and their students.