bluuebunny/crossref_metadata_2025_split huggingface dataset:
Étude de l'enthalpie de démixtion d'un verre
Authors: Lallement Jean , Herbert Jean , Anthony-Barbier Anne-Marie 
Published: July 2019

Enthalpy variation of an immiscibility in a glass was studied by measuring the heat of solutions of the glass samples of different thermal history. The glass used for this study is a sodium borosilicate having a composition : 60 % SiO₂, 30 % B₂O₃ and 10 % Na₂O (mole %). Heat treatments of glass samples were at 650° C, 675° C and 700° C. Durations of the treatment were varied from 1 /4 to 96 hours. ∆[dem] is equal to the difference between the heat of solution of the non immiscible glass and that of immiscible one. Measurements of ∆H were performed with a Calvet' s microcalorimeter by using aqueous solution of HF 10 % at 50° C. The results of these measurements were compared with observations by an optical microscope, by an electron microscope and by a scanning electron microscope.
The study indicates that the immiscibility of this glass proceeds in three stages : unmixed glass containing thermal strain, crystallization of the surface occuring several hours after the beginning of the immiscibility and finally very slow evolution of the second immiscibility.
Beispiele zum Einfluss der Bildungsbedingungen auf Natürliche Mischkristallgleichgewichte
Authors: Klemm D. D. , Snethlage R. , Weber-Diefenbach K. 
Published: July 2019

Cet article illustre premièrement, l'influence marquante de la pression partielle d'oxygène sur les domaines de solutions solides en système FeO-Fe₂O₃-Cr₂O₃. La pression partielle P[O₂] régnant dans un système de rapport Fe/Cr fixé peut agir sur la formation des phases du type chromite, pour faire s'écarter notablement leur composition de ce rapport.
Deuxièmement, que les solutions solides jusqu'ici étudiées dans le système pseudobinaire PbS-Bi₂S₃ ne contribuent pas à la compréhension de la genèse des sulfosels plomb-bismuth naturels en raison des faibles quantités de Cu, Fe, Ag et Sb qui ne peuvent être représentés dans ce système.
Troisièmement, on montre que la formation de plagioclases métamorphiques dont la composition est fonction de la température ne dépend pas nécessairement de la chimie de la roche totale. Dans de nombreux cas il est possible d'illustrer les relations entre les compositions des plagioclases et hornblendes coexistants. Le Ca, Al, Na et Si de ces deux phases s'échangent d'après les conditions physico-chimiques ambiantes. Les variations de température de cette réaction à deux phases ne peuvent en aucun cas être comparées au géothermomètre des plagioclases déterminé expérimentalement.
The alkali feldspar solvus : the case for a first-order break on the K˗limb
Authors: Martin Robert F. 
Published: July 2019

Les limites de miscibilité dans le système NaAlSi₃O₈-KAlSi₃O₈ sont importantes vu le rôle central que jouent les feldspaths alcalins perthitiques dans l'écorce terrestre. Cette étude exploite le fait que les feldspaths synthétisés en milieu hyperalcalin atteignent leur état d'équilibre plus rapidement que les feldspaths cristallisés à partir de compositions stœchiométriques ou hyperalumineuses. Ce phénomène a pour résultat d'améliorer les raies de diffraction sur un cliché de poudre, et de permettre ainsi le calcul des paramètres réticulaires des feldspaths coexistants. La composition N[Or] et le degré d'ordre ∆ (bc) des feldspaths synthétisés à 2,5 kbar sont déterminés. Les feldspaths potassiques accusent, vers 475° C, une discontinuité importante en N[Or], que nous croyons être l'expression métastable de la transformation monoclinique˗triclinique. On n'observe aucun signe de développement d'une phase triclinique. La discontinuité apparaît aussi dans les feldspaths synthétisés à 5 et 10 kbar. Au point de vue du degré d'ordre, les feldspaths sodiques, après 10 jours à 375° C, rappellent l'albite ordonnée, tandis que les feldspaths potassiques se rapprochent plutôt de l'orthose. La vitesse de recristallisation dans la transformation désordre → ordre ne dépend pas de la teneur en sodium pour les feldspaths potassiques, ni la teneur en potassium pour les feldspaths sodiques.
Correlations between the unit˗cell dimensions and the chemical and structural parameters in plagioclases and alkaline-earth feldspars
Authors: Bruno Emiliano , Facchinelli Aurelio 
Published: July 2019

Lors d'un précédent travail, on a mis en évidence expérimentalement l'existence d'une solution solide métastable dans les feldspaths Ca₁₋ₓ⎕ₓ.Al₂₋₂ₓSiAl₂₊₂ₓO₈ (0 < x < 0,17 et 1 < Si/Al < 1,4). Les caractéristiques chimiques et structurales des plagioclases calciques lunaires indiquent la présence d'une même solution solide dans les échantillons naturels. On a comparé les modifications du réseau dans cette solution solide avec les variations de dimensions de la maille des plagioclases dans le domaine An₁₀₀-An₆₇ (1 < Si/Al < 1,4) afin d'obtenir des informations sur les corrélations entre paramètres chimiques et paramètres cristallins. Une comparaison avec le comportement d'autres feldspaths et de feldspaths analogues substitués permet de mettre en évidence l'intérêt de prendre en considération la coordination du cation non tétraédrique pour donner une interprétation structurale des corrélations entre l'état structural, la composition chimique et les constantes du réseau dans les feldspaths.
Experimental study of silicon and aluminium ordering phenomena in aluminosilicates
Authors: Senderov E. E. 
Published: July 2019

Les aluminosilicates du type tectosilicate peuvent être considérés comme des solutions solides dans lesquelles le phénomène de mise en ordre des Si et Al se produit lorsque la température s'abaisse. La persistance de phases présentant un désordre métastable rend ce phénomène difficile à observer. Les conditions qui gênent la formation et la conservation de cristaux métastables favorisent en même temps l'obtention des espèces ordonnées. Ces conditions comprennent l'utilisation de minéraliseurs, de mélanges, de matériaux de départ cristallins et non pas amorphes, de germes, de longues durées des expériences. Différentes combinaisons de ces conditions permettent d'obtenir de la natrolite une zéolite à charpente ordonnée, de l'analcime stœchiométrique, dans laquelle l'ordre dans la distribution des Si et Al est supposé, de l'albite basse température, du microcline (associé à la kalsilite). La natrolite a été synthétisée dans le domaine 100° à 200° C, l'analcime stœchiométrique à 250-350° C, l'albite basse température à 300-450° C, le microcline à 200° C. La pression est fournie par la pression de vapeur saturante à 2 000 atmosphères. Les limites supérieures de stabilité sont : 300° C pour la natrolite, 400° C pour l'analcime stœchiométrique, 700° C pour l'albite ordonnée. Les données ne permettent pas de savoir si la transition désordre˗ordre de l'albite est continue ou discontinue. La formation des solutions solides de l'analcime peut être le résultat d'une croissance métastable. L'alcalinité de la solution au contact des cristaux a l'effet catalytique le plus important sur les transformations ordre-désordre. Dans le cas de l'albite basse température, les taux de transformation à 300-350° C sont approximativement proportionnels à la concentration des ions dans la solution initiale. L'énergie d'activation du processus de mise en ordre, dans ces conditions, est d'environ 10 kcal/mole. Cependant, avec l'accroissement de la température, la différence entre l'influence d'une solution alcaline et celle de l'eau pure ajoutée à l'aluminosilicate initial diminue pour devenir nulle à 550° C. Les données sur la cinétique permettent d'évaluer la durée nécessaire pour la mise en ordre de l'albite et de comparer la probabilité de conservation de la forme désordonnée, dans les conditions naturelles, à différentes températures.
Sur les composés Na3TO4 (T = Nb, Ta et Ru). Structure cristalline de Na3Nb O4
Authors: Darriet Jacques , Galy Jean 
Published: July 2019

Na₃TO₄ with T = Nb, Ta, Ru crystallize in the monoclinic system, space group C2/m (Z = 8). The structure is an ordered NaCl lattice with three different types of cationic ordering in string parallel to the b — axis.
The structure is compared with that of Na₃BiO₄ and Na₃SbO₄.
Sur une variété orthorhombique de Cs2VF6. Préparation et structure cristalline
Authors: Waltersson Kjell , Wilhelmi Karl-Axel , Carpy Alain , Galy Jean 
Published: July 2019

Cs₂VF₆ crystallizes in the orthorhombic system, space group Ccmm. The parameters are : a = 15.267 Å, b = 6.479 Å, c = 7.001 Å. The caesium atoms are inserted between isolated (VF₆)²⁻ octahedra (R = 0.030).
Differential thermal and thermogravimetric analyses of the Bahariya iron ore deposits, Egypt
Authors: Tosson Salama , El-Mahdy O. R. , Saad Nadi A. 
Published: July 2019

The iron ore deposits of the Bahariya Oasis, Western Desert, generally occur as irregularly shaped bodies replacing the Lower Lutetian limestone. The present work is carried out to ascertain the mineralogy of the Bahariya iron ore deposits and the associated gangue minerals by differential thermal and thermogravimetric analyses.
The ores consist mainly of goethite, hematite and amorphous hydrated ferric oxide and, in certain places, subordinate amounts of lepidocrocite, pyrolusite, psilomelane and manganite. Some iron and copper sulphides were also detected in few samples. Several non-opaque minerals were recorded in small amounts admixed with the ore minerals, namely : amorphous silica, quartz, gypsum, chamosite, nontronite, glauconite, calcite, dolomite, breunnerite and halite. The DTA curves illustrate the various thermal characteristics and thermal changes either chemically or structurally. The percentage of goethite, both poorly and well crystallized, were estimated using the DTA data obtained.
Consumption tendencies of foods of animal origin in Hungary
Authors: Balogh Viktória 
Published: July 2019

One of the most important indices of the population's food consumption are the quantities of the consumed foods expressed in a natural measure. In the course of my examination from the 1980 years I examined how our dietary habits changed. I was able to demonstrate it by the time series examination well, in which years and in a what kind of measure these consumer changes occurred. The trend analysis was in it onto my help, that let me be allowed to depict his beat as the changes of the food consumption visual.In his totality the Hungarian population nutritional and from his consumer customs we may relate that the present nourishment increases it unambiguous the diet pendant the risk of illnesses, furthers their development, aggravates their effect, and contributes to the population's adverse health conditions powerful.It was over in some years, in a decade on a unfortunate manner, we lost the natural instinct of the selection of the food in a considerable part. Our diet fundamental the narrower and the customs of wider environment, his rules, the social values, beliefs define it. Because of this to feed it is necessary to study it.The changed and the health-conscious nourishment would be important for him herding back into a upturned dietary habit correct bed with a wide circle recognizing him with the population, his role could be big for the healthy, or functional foods. The nourishment gives his pleasure likewise while we take over healthy foods.The recognition of the changes of the demand and accompanying him with attention could be the domestic food producers' fundamental interests. The consumer types and the market segments should be mapped, that they suitable marketing a strategy can be aimed at it, and into the direction of the healthy nutrition to push away, and would be need onto an efficient informative campaign, onto an advertisement message formulated well, onto the making aware of this, that let the advertisement supply an educational function in one.
Examination of requirements of labour market, connected with competencies of agrienvironmental engineers and nature protection engineers
Authors: Mocsáriné Fricz Julianna 
Published: July 2019

The most important goal of firms is to supply demand of their economic partners. To make it successfully, highly qualified human resource is needed. The quality of human resource is determined not only by qualification, command of a language, professional experience, practise, but extant competencies that can also be developped. To choose the expectant employee, it is not enough to have intelligence and proficiency. It is also decesive to examine particular competencies. All of these will define the employee’s achievement that can be the right way to the success ofthe enterprise. It is need to make the cooperation between higher education institutions and employers closer. As a result of this, employers can know theirs ways about possibilities of the new higher educational training system. They can use professional knowledge, competencies of the Bologna system’s graduates at different pointsof the economic life. The higher education institutions can revise their training systems considering requirements of labour market. According to these requirements, they can form syllabus in order to train auspicious experts.
Islamic (accounting) ethics education: Learning from shalat
Authors: Kamayanti Ari 
Published: July 2019

Abstrak
Artikel ini bertujuan untuk mengungkap penyesatan profesionalisme konvensional sebagai salah satu etika akuntansi dalam hal etika Islam, dan memberikan solusi melalui praktik shalat. Dengan studi naratif-intervensi di tiga kelas akuntansi pada tingkat sarjana dan pascasarjana, intervensi atau terobosan dari cara pembelajaran rutin digambarkan. Ditemukan bahwa pandangan konvensional tentang melihat pendidikan formal telah menjadi penghalang untuk menerapkan cara-cara Islam. Studi ini memberikan kritik terhadap profesionalisme akuntan serta proposal tentang bagaimana melakukan pendidikan Islam dalam sistem konvensional dan sekuler. Upaya berkelanjutan akan membantu siswa untuk menyadari bahwa melayani Tuhan adalah puncak profesionalisme. Konsep profesionalisme dalam etika akuntansi juga harus diperluas dalam definisinya.AbstractThis article aims to reveal the misdirection of conventional professionalism as one of accounting ethics in terms of Islamic ethics, and provides a solution through the practice of shalat. By narrative-interventionism study in three accounting classes in undergraduates and postgraduates levels, the intervention or break through from routine way of learning was portrayed. It is found that conventional view of seeing formal scheduled education has become a barrier to apply Islamic ways. This study provided critics towards accountants’ professionalism as well as a proposal of how to conduct Islamic education within the conventional and secular system. A continuous effort will help the students to realize that to serve God is the pinnacle of professionalism. The concept of professionalism in accounting ethics should therefore also be extended in its definition.
Determinan nilai perusahaan
Authors: Djuharni Darti , Rajani Vanyah Jessica 
Published: July 2019

Abstrak Tujuan penelitian ini adalah untuk mengetahui pengaruh Good Corporate Governance (GCG), profitabilitas, dan leverage terhadap nilai perusahaan. Metode yang digunakan adalah analisis regresi linier berganda dengan jumlah sampel sebanyak 39 dari 13 perusahaan sub sektor pertambangan. Hasil penelitian menunjukkan Good Corporate Governance, yang diproksikan dengan kepemilikan institusional dan kepemilikan managerial, profitabilitas dengan proksi Return On Equity (ROE), dan leverage menggunakan proksi Debt to Equity Ratio (DER) berpengaruh terhadap nilai perusahaan.
Abstract The purpose of this study is to determine the effect of Good Corporate Governance (GCG), profitability, and leverage on firm value. The method used is multiple linear regression analysis with a total sample of 39 out of 13 mining sub-sector companies. The results of the study indicate Good Corporate Governance, which is proxied by institutional ownership and managerial ownership, profitability with proxy Return On Equity (ROE), and leverage using the proxy Debt to Equity Ratio (DER) to affect the value of the company.
HUBUNGAN HARGA DENGAN KEPUASAN PASIEN DI RUMAH SAKIT BHAKTI MEDICARE, CICURUG, KABUPATEN SUKABUMI
Authors: Hasrul Hasrul 
Published: July 2019

The purpose of this study is to determine the presence or absence of price relationships with patient satisfaction in Bhakti Medicare, Cicurug, Sukabumi. The population of this research is 130 Bhakti Medicare’s patients, Cicurug, Sukabumi consisting of patients in Jasmine Room, Rose Room, Dahlia Room and Orchid Room. This amount fulfills the minimum sample for Slovin formula. The collected data is then processed using simple correlation and multiple correlation techniques using SPSS software. The results show that there is positive relation between price and satisfaction with correlation coefficient value equal to (ry.1) = 0,679, while price contribution to patient satisfaction equal to r2 = (ry.1)2 = 46,2%. In addition, price contribution is considered strong against patient satisfaction which means increased price will ensure patient satisfaction in Bhakti Medicare hospital, Cicurug, Sukabumi regency. In the most important dimension of price variable, the relationship is the dimension of "payment period" (X14) which has the strongest relationship with "consistency" dimension (Y3) on patient satisfaction variable with correlation coefficient 0,641. Therefore it can be concluded that the price dimension that most determine patient satisfaction at Bhakti Medicare Hospital, Cicurug, Sukabumi Regency is the dimension of price.
PENINGKATAN KINERJA GURU MELALUI PENGEMBANGAN MOTIVASI KERJA DAN EFEKTIVITAS KOMUNIKASI ANTAR PRIBADI
Authors: Yusnita Nancy 
Published: July 2019

Penelitian ini bertujuan untuk menemukan upaya-upaya yang dapat dilakukan melalui analisis i hubungan antara motivasi kerja dan efektivitas komunikasi antar pribadi baik secara sendiri-sendiri maupun secara bersama-sama dengan kinerja guru Sekolah Dasar Negeri di Lingkungan Kecamatan Bogor Tengah. Penelitian ini merupakan penelitian korelasional yang terdiri atas dua variabel bebas yaitu motivasi kerja dan efektivitas komunikasi antar pribadi dan satu variabel terikat yaitu kinerja. Metode penelitian yang digunakan adalah metode survey yang dilaksanakan di 13 Sekolah Dasar Negeri di Lingkungan Kecamatan Bogor Tengah dengan responden terdiri dari 98 orang guru yang berstatus pegawai negeri sipil. Teknik pengambilan sampel dilakukan dengan menggunakan teknik sampel acak proporsional (proportional random sampling). Teknik analisis data menggunakan teknik korelasi dan regresi linier sederhana serta korelasi dan regresi ganda. Berdasarkan hasil penelitian ini, dapat dinyatakan bahwa peningkatan kinerja dapat dilakukan dengan cara meningkatkan motivasi kerja melalui peningkatan pada aspek: berorientasi pada tujuan; kegigihan menyelesaikan pekerjaan; usaha mencari umpan balik; harapan meraih keberhasilan; keterlibatan dengan tugas yang dikerjakan; kemauan mengembangkan diri serta pengembangan efektivitas komunikasi antar pribadi melalui peningkatan pada aspek: saling percaya; saling terbuka; tatap muka; saling menghargai; kejelasan pesan; umpan balik.
Pengaruh corporate governance, dan faktor-faktor lainnya terhadap manajemen laba
Authors: FIRNANTI FRISKA 
Published: July 2019

The objective of this research is to obtain empirical evidence of board of independence, institutional ownership, board of size, managerial ownership, profitability, firm size, audit quality, audit committee, and leverage as independent variables to earnings management. Earning management as dependent variable in Indonesian manufacturing companies.The research period is three years from 2012-2014 and population in this research is all listed companies in Indonesian Stock Exchange. Samples are obtained through purposive sampling method, listed manufacturing companies in Indonesian manufacturing companies meet the sampling criteria, resulting 185 data. Multiple linear regressions is used as the data analysis method in this research.The result of this research shows that profitability, firm size, audit quality, and leverage statistically have effect on the earningsmanagement. While other variables such as board of independence, institutional ownership, board of size, managerial ownership, and audit committee have no effect on earnings management.
Incidencias de la Tecnología web 2.0 en el contexto de la gobernanza y la gobernabilidad
Authors: Chirinos Martínez Ana Cristina , Perozo Martín Rubén Ulises 
Published: July 2019

Recibido: 11 de abril del 2019Aprobado: 29 de mayo del 2019La Web 2.0 se considera como la evolución vislumbrada en Internet, desde las webs tradicionales a las aplicaciones dirigidas a usuarios, cuyo uso ha sido la interacción y redes sociales; que pueden servir contenido introduciendo webs interactivas y visuales. El presente artículo tiene como objetivo analizar los enfoques teóricos referentes a la Web 2.0, contribución en la rendición de cuentas en la gobernanza, gobernabilidad; gobierno abierto, transparencia y la participación ciudadana La metodología consistió en efectuar un recorrido sobre artículos arbitrados e investigaciones científicas sobre el desarrollo de diversas aplicaciones en Internet a partir de fuentes primarias. Concluyéndose que el uso de la Web 2.0 debe apuntar a mejorar las relaciones de los gobiernos con sus ciudadanos, otras dependencias gubernamentales y con la empresa privada, para elevar los niveles de confianza de los ciudadanos en sus gobiernos y eliminar la opacidad en los procesos administrativos y de rendición de cuentas.
STUDI POPULASI BAKTERI RESISTEN MERKURI DI DAERAH ALIRAN SUNGAI TONDANO, KELURAHAN KETANG BARU, MANADO
Authors: Manampiring Aaltje E. , Keppel Billy J. 
Published: July 2019

Kadar merkuri yang tinggi di perairan umumnya dapat mempengaruhi keadaan biota termasuk bakteri yang resisten terhadap merkuri. Penelitian deskriptif yang menggunakan metode cross sectional bertujuan untuk menguji resistensi bakteri di aliran sungai Tondano, Kelurahan Ketang Baru, Manado terhadap merkuri. Escherichia coli dan Bacillus careus (isolat1,1 dan 2,2) hanya dapar tumbuh pada konsentrasi HgCl2 0,02%. Lactobacillus sp. dan Veillonella parvula (isolat 1,2 2,1 3,1 dan 3,2) tumbuh pada konsentrasi HgCl2 0,06%. Lactobacillus sp. (isolat 3,1) saja yang tumbuh pada konsentrasi HgCl2 0,1% dan tidak ada bakteri yang mampu tumbuh pada konsentrasi HgCl2 0,2%. STUDY ON POPULATION OF MERCURY-RESISTANT BACTERIAIN THE WATERSHED AREA OF TONDANO RIVER,KELURAHAN KETANG BARU, MANADOHigh concentration of mercury in the watershed area can affect biota condition, including mercury-resistant bacteria. This descriptive research with cross-sectional method aimed to evaluate the mercury-resistance of bacteria in watershed area of Tondano, Kelurahan Ketang Baru, Manado. Escherichia coli and Bacillus careus (isolates 1,1, dan 2,2) were able to grow in HgCl2 0,02%. Lactobacillus sp. and Veillonella parvula (isolates 1,2 2,1 3,1 and 3,2) grow in HgCl2 0,06%. Lactobacilus sp. (isolate 3,1) only grow in HgCl2 0,1% and none of bacteria could grow in HgCl2 0,2%.