bluuebunny/crossref_metadata_2025_split huggingface dataset:
Distribution of “Invisible” Noble Metals between Pyrite and Arsenopyrite Exemplified by Minerals Coexisting in Orogenic Au Deposits of North-Eastern Russia
Authors: Tauson Vladimir , Lipko Sergey , Kravtsova Raisa , Smagunov Nikolay , Belozerova Olga , Voronova Irina 
Published: October 2019

The study focused on the forms of occurrence and distribution of hidden (“invisible”) noble metals (NMs = Au, Ag, Pt, Pd, Ru) in the coexisting pyrites and arsenopyrites of four samples of mineral associations from three Au deposits in the north-east of Russia. The unique nature of our approach was the combination of methods of local analysis and statistics of the compositions of individual single crystals of different sizes. This allowed us to take into account the contribution of the surface component to the total NM content and to distinguish the structurally bound form of the elements. The following estimates of the distribution coefficients of the structural (str) and surficial (sur) forms of elements were obtained: D ¯ P y / A s p s t r = 2.7 (Au), 2.5 (Pd), 1.6 (Pt), 1.7 (Ru) and D ¯ P y / A s p s u r = 1.6 (Au), 1.1 (Pd), 1.5 (Pt and Ru). The data on Ag in most cases indicated its fractionation into pyrite ( D ¯ P y / A s p s t r = 17). Surface enrichment was considered as a universal factor in “invisible” NM distribution. A number of elements (i.e., Pt, Ru, Ag) tended to increase their content with a decrease in the crystallite size in pyrite and arsenopyrite. This may be due to both the phase size effect and the intracrystalline adsorption of these elements at the interblock boundaries of a dislocation nature. The excess of metal (or the presence of S vacancies) in pyrite increased Ag and Pt content in its structure and, to a lesser extent, the content of Ru, Pd and Au. Arsenopyrite exhibited a clear tendency to increase the content of Pt, Ru and Pd in samples with excess As over S. Sulphur deficiency was a favourable factor for the incorporation of Ag and platinoids into the structures of the mineral associations studied. Perhaps this was due to the lower sulphur fugacity. Pyrite with excess Fe was associated with higher contents of some NMs. The presence of other impurity elements was not an independent factor in NM concentration.
Socio-Economic Development of Russia in 2018-2020: Recession Threatening Stagnation
Authors: Frenkel A. A. , Tikhomirov B. I. , Sergienko Ya. V. , Surkov A. A. 
Published: October 2019

The article presents the authors’ point of view on the results of the socio-economic development of Russia in 2018 and provides an analytical assessment of forecasts for 2019 and 2020 and estimates for the immediate prospects for the development of the country. The focus is on ensuring the implementation of the May (2018) Decree of the President of the Russian Federation.The authors analyzed the state and conﬁrmed directions to overcome stagnation, ﬁrst of all, by eliminating the lag in the technological level of production and ensuring the growth in labor productivity, enhancing business, investment and consumer activity, increasing the efﬁciency of capital investments as key factors affecting the growth in the real sector and the knowledge economy, including industrial production , agriculture, capital construction.The paper highlights the weak links in the current management system and proposes measures to overcome the existing structural crisis. There is a need for a socio-economic policy change that should be aimed at ensuring the health of a nation.The authors compared Russian and global trends in key development indicators, such as gross domestic product (GDP), industrial production, foreign trade.A comparative assessment of the 2020 and 2021 forecasts of the considered key macroeconomic indicators (including the real sector of the economy as a driver of socio-economic progress) is presented. The projected in 2019 and 2020 slowdown in the global economy, the expected fall in global trade and the expansion of trade wars and sanctions, as well as the existing import dependence may contribute to the growing negative trend in the Russian economy and lead to stagnation escalating into recession.
Problems of Household Budget Surveys: Regional Experience
Authors: Aichepsheva R. P. 
Published: October 2019

The article addresses organizational challenges and methodological issues that state statistical bodies face while preparing for and conducting household budget sample survey (HBS). Among these problems, the author considers the diﬃculties associated with ensuring the quality of HBS results and minimizing the number of respondent refusals to participate in this observation.According to the author, the range of tasks to be solved includes, among other things, methodological and organizational aspects, such as the need to review certain regulations of the HBS by-laws, search for reserves to reduce the survey program, to change the order of generating sample units, and a number of other provisions. In this regard, the author proposes to decrease the information load on respondents. It includes reducing the time of ﬁlling out the questionnaire, as well as applying an updated approach to the formation of the respondent network. In addition, the author emphasizes the need to increase the level of automation of collecting and processing of primary HBS data.
The Work of the Central Statistical Committee in 1917-1918
Authors: Cherepenina N. Yu. , Dmitriev A. L. 
Published: October 2019

The activity of state statistics throughout the revolutionary period of 1917 is uncharted territory in the history of Russian statistics. Using documents from the State Archive of the Russian Federation, the authors examined for the ﬁrst time the last year of the Central Statistical Committee. Unlike other state structures of the previous government, it was not dissolved after the events of October 1917 and continued to operate after the Soviet government moved to Moscow. The article contains information on the ﬁrst «Soviet» Head of the Central Statistical Committee of the Commissariat of Internal Aﬀairs V.A. Algasov and outlines the work of Professor M.A. Sirinov, who was oﬀered a position of the Head of the Central Statistical Committee by the People’s Commissar of Internal Aﬀairs G.I. Petrovsky. Archive records helped establish the fact that both the authorities of the Central Statistical Committee and some statisticians came up with an idea of founding a new statistical service based on the Central Statistical Committee and gubernia (provincial) statistics. The authors revealed the role of V.V. Stepanov in relocating the Library of the Central Statistical Committee to Moscow. The article describes the clash of opinions that preceded the establishment of the Soviet state statistics, to be speciﬁc the inauguration of the RSFSR Central Statistical Board, which was envisaged to be an independent body, not subordinate to any agency, to ensure the independence of the country’s statistical service.
Méthode de mesure rapide des trois indices de réfraction principaux des minéraux en grains
Authors: Crovisier Jean-Louis 
Published: October 2019

Refractive indices of a crystal can be determined using a spindle stage and a modified microrefractometer Zeiss. The crystal, cemented to the tip of the spindle, is immersed in a liquid in the modified cell of the microrefractometer.
The orientation of the indicatrix axis of the crystal is determined by the classical method described by Joel and Garaycochea (1957) using the extinction curve. The principal indices are compared in situ with the index of the liquid, composition of which is modified by injection of another liquid through a microsyringe. A perfect mixing is obtained by two opposited microsyringes. The precision on measurement is given for the third decimal.
The structure and chemistry of hydrous nickel-containing silicate and nickel-aluminium hydroxy minerals
Authors: Brindley George William 
Published: October 2019

Les caractéristiques structurales et chimiques des aluminates et silicates hydratés contenant du nickel — caractéristiques qui, pour la plupart, ont été mises en lumière au cours de la dernière décade — sont passées en revue. La grande majorité de ces minéraux ressemblent aux silicates hydratés magnésiens avec substitution à divers degrés de Mg par Ni ; cette substitution est assez aisée du fait de la similarité des tailles ioniques et de l'égalité des charges. On a généralement Ni ≪ Mg ; de tels minéraux sont des formes nickélifères des minéraux magnésiens, c'est le cas en particulier des minéraux de serpentine, de la kérolite (ou talc), de la chlorite (clinochlore) et de la sépiolite. Le cas de Ni ≫ Mg est plus rare et justifie, des appellations spéciales pour les minéraux. Les smectites dioctaédrales contenant du nickel ressemblent à la fois à la montmorillonite et à la beidellite˗nontronite. Les minéraux contenant du nickel ont généralement une structure fortement désordonnée et leur composition peut s'écarter de la stoechiométrie des minéraux magnésiens correspondants. On connaît des structures imparfaites intermédiaires entre la chlorite et la vermiculite, ainsi que des structures intercalées.
Les aluminates hydratés de nickel sont apparentés à l'hydrotalcite et à la pyroaurite et l'on rencontre aussi bien des formes sulfatées que carbonatées.
Anion-exchange in takovite : applications to other hydroxide minerals
Authors: Bish David L. 
Published: October 2019

La takovite, un des membres du groupe des pyroaurites qui contient du nickel a été, ainsi que son minéral apparenté l'hydrotalcite, soumise à des traitements, à 25 °C, par des solutions, 0,1 M de HCl, HNO₃, H₂SO₄, NiSO₄, Al₂(SO₄)₃ et KOH. La diffraction des rayons X et la spectroscopie aux infrarouges appliquées aux matériaux traités confirment que les groupes carbonates du minéral d'origine peuvent facilement s'échanger avec les anions Cl⁻, NO₃⁻, OH⁻ et SO₄²⁻, à la température ordinaire. Les chlorures, nitrates et hydroxy˗takovites donnent des diagrammes aux rayons X pratiquement semblables à ceux du minéral non traité, avec des espacements supérieurs d'environ 0,2 Å. Les diagrammes aux rayons X des matériaux traités au sulfate donnent un espacement de 8,9 Å pour des humidités relatives inférieures à 50 % et de 10,8 Å pour des humidités relatives supérieures à 50 % contre 7,5 Å pour le matériau non traité. Si on met de la takovite traitée au sulfate dans une solution de KOH 0,01 M saturée en CO₂, pendant 18 heures à 25 °C on obtient aux rayons X et aux infrarouges les mêmes résultats que pour la takovite d'origine. On pense que les anions Cl⁻, NO₃⁻ et OH⁻ occupent une position très similaire à ceux du groupe carbonate, et la disposition du sulfate est probablement similaire à celle trouvée pour le sulfate d'hydrocalumite. Les données dont on dispose suggèrent que la carrboydite, l'honessite et la motukoreaite possèdent des structures exactement analogues à celle de la takovite sulfatée.
La kolwésite, un hydrocarbonate de cuivre et de cobalt analogue à la glaukosphaérite et à la rosasite
Authors: Deliens Michel , Piret Paul 
Published: October 2019

La kolwézite se présente en nodules isolés de 1 à 10 mm ou en croûtes microcristallines de couleur noire à beige. La densité mesurée est de 3,97 g/cm³ et la densité calculée de 3,94 g/cm³. La dureté Mohs est voisine de 4. n'p = 1,688 et n'g est supérieur à 1,90. Le minéral est triclinique avec a = 9,50 Å, b = 12,15 Å, c = 3,189 Å, α = 93.32°, β = 90.74° et γ = 91.47°. Les raies principales du diagramme de poudre sont (d(Å), I, hkl ) : 3,69 (10) 220, 6,08 (8) 020, 5,08 (8) 120 et 2,599 (7) 2[-1]1. Composition chimique : CuO 48,40 %, CoO 22,98 %, H₂O 8,78 % et CO₂ 19,44 % ; formule sur la base de O = 5 : (Cu, Co)₂CO₃(OH)₂ avec Cu/Co proche de 2.
Le minéral provient de la zone d'oxydation du gisement cupro-cobaltifère de Kolwezi-Kamoto-Musonoi, au Shaba méridional. Nommé en fonction de la localité.
Minerals of the tantalite-niobite series from Mozambique
Authors: Sahama Thure Georg 
Published: October 2019

This paper reports chemical and physical data for the tantalite-niobite minerals from the granite pegmatites of the district of Zambézia, northern Mozambique. The samples represent largely commercial «tantalite » concentrates.
The chemical composition varies from virtually pure manganotantalite (pink to almost colorless) to manganoan or ferroan niobite (black). The densities of the samples were extrapolated to the end members MnTa₂O₆ (D = 8.0), MnNb₂O₆ (5.3) and FeNb₂O₆ (5.4). An equation is derived for estimating the Ta — Nb ratio of unanalyzed specimens. Transparent varieties are often zoned. The relationship between chemical composition and color is rewieved.
The following setting is adopted : a ~ 14.4 Å, b ~ 5.7 Å, c ~ 5.1 Å, corresponding to the space group Pbcn. The unit cell dimensions are calculated from X-ray powder patterns. Single crystal precession photographs disclose a highly varying degree of cation-disorder. No ixiolite proper was found. The unit cell dimensions of the natural specimens were compared with those of the synthetic end members by plotting the cell dimensions against Mn of the cell content. The deviations of the cell dimensions from those predicted by the linear variation in the series MnNb₂O₆ — FeNb₂O₆, along with the ratio a/c, was taken as a rough measure of the degree of cation-disorder.
Keefektifan Permainan Monopoli IPA terhadap Kemampuan Kognitif dan Sikap Ilmiah Siswa SD
Authors: Suryani Ela 
Published: October 2019

Pembelajaran IPA di kelas IV SDN Wujil 01 menunjukkan kemampuan kognitif siswa yang masih dibawah KKM sebanyak 76% dan sikap ilmiah siswa yang masih rendah sebesar 18%. Oleh karena itu, perlu adanya solusi inovasi perbaikan pembelajaran IPA di kelas yaitu media dengan menggabungkan unsur permainan. Salah satunya adalah permainan monopoli IPA. Penelitian ini bertujuan untuk mengetahui seberapa efektif penggunaan permainan monopoli IPA terhadap kemampuan kognitif dan sikap ilmiah siswa SD. Selain itu, bisa dijadikan strategi bagi guru SD maupun calon guru SD dalam mempersiapkan proses pembelajaran IPA yang menyenangkan.
Jenis penelitian yang digunakan adalah penelitian eksperimen dengan desain two-group posttest only desain. Teknik pengumpulan data yang digunakan adalah dokumentasi, tes, dan observasi. Analisis data meliputi 1) instrumen tes uji coba menggunakan program aplikasi Anates V.4 meliputi validitas tes, uji reabilitas, daya pembeda saoal, dan tingkat kesukaran soal; 2) uji normalitas uji kolmogorov-smirnov dalam software PASW Statistics 18. 3) uji homogenitas dalam penelitian ini menggunakan uji levene test (test of homogeneity of variences) dalam software PASW Statistics 18; 4) kesamaan rata-rata menggunakan independent sample t-test dengan software PASW Statistics 18.
Hasil penelitian menunjukkan bahwa pembelajaran menggunakan permainan monopoli IPA efektif dalam meningkatkan kemampuan kognitif dan sikap ilmiah siswa SD. Hal ini ditunjukkan dari taraf signifikansi yaitu 0.008 dan 0.005 < 0.05 sedangkan rata-rata nilai pembelajaran IPA pada kelas eksperimen dengan menggunakan permainan monopoli IPA lebih tinggi daripada rata-rata nilai pembelajaran kelas kontrol (83.55 > 71.26). Selain itu, sikap ilmiah yang dimiliki siswa SD selama proses pembelajaran menggunakan permainan monopoli IPA dalam kategori sangat baik dengan presenase 84,02%.
HUBUNGAN DUKUNGAN KELUARGA DAN PERAN PETUGAS KESEHATAN TERHADAP PEMBERIAN MP-ASI DINI PADA BAYI USIA 0-6 BULAN DI PUSKESMAS KONI KOTA JAMBI TAHUN 2018
Authors: Siahaan Gustien 
Published: October 2019

Berdasarkan data Puskesmas Koni terdapat 185 kunjungan bayi 0-6 bulan.Tujuan penelitian adalah untuk mengetahui hubungan dukungan keluarga dan peran petugas kesehatan terhadap pemberian MP-ASI dini pada bayi usia 0-6 bulan.
Penelitian dilaksanakan di Puskesmas Koni Kota Jambi pada tanggal 12-20 Juli 2018. Penelitian ini adalah deskriptif analitik dengan jumlah sampel 37 responden dan teknik sampling yang digunakan adalah accidental sampling dengan menggunakan lembar kuesioner.
Hasil penelitian menunjukkan bahwa sebanyak 17 responden (45,9%) memberikan MP-ASI dini, sebanyak 20 responden (54,1%) dukungan keluarga kurang baik dan 8 responden (21,6%) menyatakan peran petugas kurang baik dengan p-value dukungan keluarga 0,001 dan peran petugas kesehatan dengan p-value 0,008.
Oleh karena itu, dari hasil penelitian ini dapat memberikan informasi dan masukkan tentang faktor-faktor yang mempengaruhi MP-ASI dini sehingga dapat meminimalkan pemberian MP-ASI dini
ANALISIS PENYELENGGARAAN PASAR SEHAT TAC KOTA JAMBI TAHUN 2019
Authors: Hamdani Hamdani , Parman Parman , Inna Nur 
Published: October 2019

Pasar adalah salah satu tempat dimana orang beraktivitas setiap harinya dan berperan sangat penting dalam pemenuhan kebutuhan. Pada saat yang sama, pasar juga dapat menjadi jalur utama untuk penyebaran penyakit seperti kasus kolera di amerika latin, SARS dan avian influenza di asia. Melatar belakangi kondisi tersebut, pemerintah telah berusaha mewujudkan pasar tradisional menjadi pasar sehat, diantaranya melalui Peraturan Menteri Dalam Negeri dan Menteri Kesehatan Nomor 34 tahun 2005 Nomor 1138/Menkes/PB/VIII/2005 tentang penyelenggaraan kabupaten/kota sehat, pasar sehat mutlak diperlukan dalam mewujudkan kabupaten/kota sehat dimana keberadaanya merupakan salah satu faktor utama yang dapat mempengaruhi derajat kesehatan masyarakat diwilayah tersebut. Penelitian ini merupakan penelitian kualitatif yang bertujuan untuk memperoleh hasil analisis penyelenggaraan pasar sehat TAC kota jambi, pengumpulan data dilakukan dengan cara wawancara mendalam, observasi dan telaah dokumen. Penelitian ini dilakukan pada bulan januari-februari 2019 di pasar sehat TAC kota jambi. Hasil penelitian menunjukkan skor inspeksi pasar sehat TAC dikategorikan tidak sehat dengan skor 5.295. Sarana dan prasarana dalam pasar sehat TAC belum mencukupi dan perlu perbaikan dikarenakan biaya yang tidak mencukupi dan sudah 2 tahun ini tidak pernah lagi di lakukan sosialisasi antar kelompok kerja pasar sehat TAC, tidak pernah dilakukan pelatihan, pembinaan dan pengawasan kepada petugas pasar yang baru, tidak mengikuti mekanisme pelaporan menurut pedoman penyelenggaraan pasar sehat hal ini terjadi karena dinas pasar yang menjadi leading sektor penyelenggaraan pasar sehat TAC sekarang sudah bergabung dengan DISPERINDAG jadi pengelola dan kelompok kerja pasar sehat TAC yang dulunya tugas di dinas pasar sekarang sudah pindah tugas dan jabatan ke DISPERINDAG. Disarankan kepada pemerintah untuk melengkapi dan memperbaiki sarana prasana yang mendukung dalam penyelenggaraan pasar sehat TAC serta membentuk kelompok kerja baru dalam penyelenggaraan pasar sehat TAC untuk membina dan memberikan pelatihan kepada petugas pasar sehat TAC yang baru.
Faktor Penyebab Keterlambatan Penyerahan Klaim BPJS di RSUD KH. Daud Arif Kab. Tanjab Barat Tahun 2018 (Kualitatif)
Authors: Sari Diah Sekar , Girsang Ermi , Ramadhani Sri Lestari 
Published: October 2019

RSUD KH. Daud Arif Pada Tahun 2018 belum dapat melaksanakan pengajuan klaim sesuai waktu yang sudah ditetapkan. Klaim diajukan >N-3 yang artinya dilaksanakan lebih dari 3 (tiga) bulan untuk 1 (satu) bulan pelayanan, hal tersebut dapat terjadi karena permasalahan dari dalam rumah sakit. Hasil studi eksplorasi ditemukan bahwa permasalahan berasal dari bagian penunjang yang merupakan kelengkapan dokumen klaim belum lengkap saat pasien pulang perawatan sehingga memerlukan waktu tambahan untuk menyelesaikannya.
Penelitian ini bertujuan untuk Analisis Faktor Penyebab Keterlambatan Penyerahan Klaim BPJS di RSUD KH. Daud Arif Kab. Tanjab Barat Tahun 2018. Jenis penelitian ini adalah kualitatif deskriptif. Informan penelitian ini berjumlah 16 orang yang diwawancarai, terdiri dari 7 orang petugas pembuat SEP serta melengkapi berkas, 3 orang petugas koder, dan 3 orang petugas entry klaim ke aplikasi INA CBGs. Untuk informan pendukung berjumlah 3 orang terdiri dari kepala Bidang Keuangan BPJS Kesehatan cabang Jambi 1 orang, Kepala Bidang Manajemen Rujukan BPJS Kesehatyan Cabang Jambi, dan Direktur RSUD KH. Daud Arif Kab. Tanjab Barat.
SDM dalam menyelesaikan pengkodingan, mengentry Sep Dan melengkapi klaim dan mengentry Klaim Ke Aplikasi Ina CBG’s dengan kinerja petugas yang cukup baik dimana hanya terkendala pada sarana dan prasarana yang dipakai. Metode yang digunakan dalam poengajuan klaim sesuai dengan Standar Operasional Prosedur (SOP). proses yang digunakan dalam poengajuan klaim sesuai dengan SOP dimulai dari pengambilan no antrian, pembuat SEP, melakukan entry koding sesuai dengan ICD 9 CM dan ICD 10. lalu kasiin ke pihak entry. Terdapat beberapa kendala yang mempengaruhi proses keterlambatan pengajuan klaim diantaranya internet sering terputus kekurangan tenaga serta Status lambat turun karena resume belum lengkap.
Ukraine’s position in international investment ratings
Authors: Churuta Ivan 
Published: October 2019

The article reasons that foreign direct investments play a crucial role in the economy of every world country, since they ensure the effective functioning of economy and economic growth. It is found that the volume of foreign direct investments into the economy of a certain country depends on the investment climate, whose main indicator is the position of countries in international investment ratings that allows us to evaluate the investment climate, possible investment risks and the degree of investment safety.The subject of the study is the investment climate in Ukraine and its position in the main international investment ratings. The research methods used in the study include theoretical generalization, comparison, abstraction, analysis and synthesis.The paper presents a list of the main international investment ratings that should be taken into account by potential investors while analyzing the investment climate and investment image of the country and considering the practicality of investing into the economy.The current position and dynamics of Ukraine’s rankings in these ratings are analyzed: according to Global Competitiveness index – 81st position among 137 countries; according to index of Economic Freedom – 150th position among 180 countries; according to Ease of Doing Business index – 76th position among 190 countries; according to Investment Attractiveness index – 134th out of 174 countries. Based on the analysis of Ukraine’s position in the main international investment ratings, it is concluded that the investment climate in Ukraine is not favorable; therefore, Ukraine needs to take measures to improve its investment climate and its positions in these ratings in order to attract foreign investment to the required extent.
UJI AKTIVITAS ANTIOKSIDAN SEDIAAN SIRUP DAUN SEREH (Cymbopogon citratus)
Authors: Febrina Dina 
Published: October 2019

ABSTRACT
Antioxidants are compounds that can inhibit reactive oxygen species and also free radicals so that antioxidants can prevent diseases associated with free radicals such as carcinogenesis, cardiovascular, and aging. The emergence of a negative response to the use of synthetic antioxidants is thought to have the potential to cause cancer. So that natural antioxidants are increasingly in demand because they are believed to be safer for health. Lemongrass (Cymbopogon citratus) is one of the plants commonly used as spices by the people of Indonesia. Determination of antioxidant activity of lemongrass syrup was carried out by DPPH method. the results showed an IC50 value of lemongrass syrup preparations of 50.68 ppm.