bluuebunny/crossref_metadata_2025 huggingface dataset:
Profil hormon FSH, LH dan estradiol serta kadar glukosa darah sidat, Anguilla bicolor bicolor (Mc Clelland, 1844) yang dirangsang hormon HCG, MT, E2 dan anti dopamin
Authors: Zahri Abdul , Sudrajat Agus Oman , Junior Muhammad Zairin
Published: January 2019

This study aims to analyze the hormone profile of FSH, LH and E2 to the eel after exogenous hormone stimulation and blood glucose levels. Six formulated treatment applied with combination of dopamine antagonize 10 mg.mL–1 (A), estradiol (E2) 3 mg.mL–1 + A (EA), metyltestosteron (MT) 3 mg.mL–1 + A (MTA), hCG 2 mg.mL–1 + EA (hEA) and hCG 2 mg.mL–1 + MTA (hMTA), with (F) physiologis 0.9% NaCl to control. Six group eel (200±15g) reared in a concrete tank with a capacity of 3,400 liters and filled with sea water of 35 mg L–1 as much as 2000 liters. Eels injected 1 mL.kg–1 hormone by intramusculary, were feed to apparent satiation daily for 10 weeks. The study used Completely Randomized Design with one treatment factor, namely hormonal factor and its combination. Fish blood that ware directly concentration to FSH, LH and E2, the enhanced significantly high in the blood plasma on treatment hMTA and hEA P<0.05. Glucose concentration in the blood palsma is high enough in a row on a formula hMTA 67.33 mg.dL–1 and significantly different to P<0.05. The result indicates that induction of exogenous hormone (hMTA) improve FSH, LH and E2. FSH and LH profiles show permutation patterns during the development of eel gonad, beginning with the increase of FSH in the early phases of gonadal development. LH profile moves in line with the increase in E2 during gonadal maturation process eels (A. bicolor bicolor), with blood glucose levels in the normal range. AbstrakThis study aims to analyze the hormone profile of FSH, LH and E2 to the eel after exogenous hormone stimulation and blood glucose levels. Six formulated treatment applied with combination of dopamine antagonize 10 mg.mL–1 (A), estradiol (E2) 3 mg.mL–1 + A (EA), metyltestosteron (MT) 3 mg.mL–1 + A (MTA), hCG 2 mg.mL–1 + EA (hEA) and hCG 2 mg.mL–1 + MTA (hMTA), with (F) physiologis 0.9% NaCl to control. Six group eel (200±15g) reared in a concrete tank with a capacity of 3,400 liters and filled with sea water of 35 mg L–1 as much as 2000 liters. Eels injected 1 mL.kg–1 hormone by intramusculary, were feed to apparent satiation daily for 10 weeks. The study used Completely Randomized Design with one treatment factor, namely hormonal factor and its combination. Fish blood that ware directly concentration to FSH, LH and E2, the enhanced significantly high in the blood plasma on treatment hMTA and hEA P<0.05. Glucose concentration in the blood palsma is high enough in a row on a formula hMTA 67.33 mg.dL–1 and significantly different to P<0.05. The result indicates that induction of exogenous hormone (hMTA) improve FSH, LH and E2. FSH and LH profiles show permutation patterns during the development of eel gonad, beginning with the increase of FSH in the early phases of gonadal development. LH profile moves in line with the increase in E2 during gonadal maturation process eels (A. bicolor bicolor), with blood glucose levels in the normal range.
Pengembangan Hasil Inovasi Teknologi Mie Instan ”Carika Pepaya Noodle” sebagai Penguat Diversifikasi Pangan Non Beras
Authors: Kuswardahni Nita , Kuntadi Ebban Bagus , Agustina Titin
Published: January 2019

Penelitian ini bertujuan untuk; pertama, mengenalkan kepada masyarakat terkait pemanfaatan pepaya menjadi produk mie instan sebagai upaya penguatan diversifikasi pangan non beras; kedua untuk melihat daya terima masyarakat terhadap produk mie instan carica papaya; ketiga untuk mengidentifikasi faktor pendorong dan faktor penghambat pemanfaatan mie carica papaya dalam penguatan diversifikasi pangan non beras. Lokasi penelitian ini ditentukan secara sengaja yaitu di Kabupaten Lamongan, Lumajang dan Jember. Metode analisis dalam penelitian ini menggunakan analisis statistik deskriptif, uji sensori (rasa, aroma, tekstur dan warna) daya terima masyarakat terhadap produk carica papaya. Hasil penelitian menunjukkan bahwa tingkat kehadiran peserta kegiatan sosialisasi dan praktek pembuatan Mie Carica Pepaya adalah 100%, seluruh peserta menyatakan puas terhadap pelaksanaan kegiatan. Hasil uji organoleptik terhadap “Mie Instan Carica Papaya” menunjukkan bahwa sebesar 84,67 % responden menyukai tekstur, 78,54% responden menyatakan suka dengan warna, 85,89% responden menyatakan suka terhadap rasa, 66,88% responden kurang menyukai aroma.
Hubungan Pemakaian dan Penatalaksanaan Garam Beriodium Skala Rumah Tangga dengan Status Iodium Balita di Kabupaten Blitar dan Kediri
Authors: Sugianti Elya
Published: January 2019

Masalah GAKI merupakan masalah kesehatan yang belum terselesaikan. Selama ini pemakaian garam beriodium digunakan sebagai upaya dalam menanggulangi masalah GAKI. Namun, dalam dua tahun terakhir, kegiatan pemantauan garam beriodium skala rumah tangga sudah tidak dilakukan. Tujuan dari penelitian ini adalah untuk menganalisis pemakaian dan penatalaksanaan garam beriodium pada skala rumah tangga terhadap status iodium balita. Penelitian ini merupakan penelitian kuantitatif dengan desain cross sectional. Pengumpulan data dilakukan dengan wawancara responden dan pengujian laboratorium. Jumlah sampel pada penelitian ini sebanyak 95 balita. Analisis data menggunakan uji chi square dan spearman. Hasil penelitian ini adalah pemakaian garam beriodium pada skala rumah tangga mampu menjaga status iodium balita pada kondisi optimal. Namun, masih terdapat defisiensi dan kelebihan iodium pada balita. Meskipun pada panelitian ini pemakaian dan penatalaksanaan garam beriodium pada skala rumah tangga tidak berhubungan dengan kejadian GAKI pada balita (p>0,05), namun, pemakaian dan penatalaksanaan garam beriodium dengan baik penting dalam mengeliminasi GAKI pada masyarakat.
Sensitivity Analysis of Banana Chips Small Business
Authors: Pudjiastuti Agnes Quartina , Iriani Nur Ida , Sa’diyah Ana Arifatus
Published: January 2019

Banana chips are one of the traditional foods favored by Indonesian people and are mostly cultivated on a small scale. This study aims to analyze the feasibility and sensitivity of banana chips business. Primary data to compile cash flow in 2017 was obtained from small business of banana chips which was then analyzed feasibility financially. Sensitivity analysis was based on the increase in total cost and decreased production. The results of the analysis show that existing banana chips business was categorized as feasible based on the criteria of gross B/C, net B/C, NPV and IRR. The banana chips business was still feasible even though the total cost increased by 5% and production decreased by 15%.
Justicia universal como síntoma
Authors: Manzanal Ciancaglini Augusto
Published: January 2019

Partiendo de la decisión de la República de Burundi de abandonar la Corte Penal Internacional se pone el foco en la situación política de este país y los desequilibrios de la justicia universal. De esta forma, se desvelan elementos que permiten expandir el análisis a través de la propensión a la violencia deotros sistemas políticos. El resultado es la propuesta de un sector geográficoque comprende a varios estados con similares características. Este espacio que ayude al estudio de cada caso particular dentro de un marco de interre- lación ha sido denominado aquí como la elipse afroasiática.
reformas estructurales en la crisis económica de la Unión Europea y de la década perdida de América Latina, lecciones para rescatar
Authors: Arce Rodríguez Lourdes M
Published: January 2019

La crisis europea y la de América latina en su momento, han puesto en dificultades la recuperación de la economía mundial, la difícil recuperación contiene una tendencia a incrementar la pobreza y la exclusión social en la zona euro y en este mismo sentido las reformas estructurales han mostrado como en los años 80 ́s, un enorme poder de desestructuración social. Las reformas estructurales se consideran elementos fundamentales para incrementar el crecimiento potencial de las economías, pero por sus resultados ha quedado demostrado que no han sido favorables ni en el corto ni en el mediano plazo para las propias economías que las aplicaron, por lo anterior vale la pena rescatar de ambas experiencias su viabilidad como respuesta a las crisis económicas.
In vivo Neurological, Analgesic and In vitro Antioxidant and Cytotoxic Activities of Ethanolic Extract of Leaf and Stem Bark of Wedelia chinensis
Authors: Khanum Sayema , Sarwar Md Shahid , Islam Mohammad Safiqul
Published: January 2019

Wedelia chinensis is a widely used anti-inflammatory and hepatoprotective medicinal plant in Bangladesh. In this study, analgesic, neurological, antioxidant and cytotoxic activities of the ethanolic extract of leaf and stem bark of W. chinensis were investigated. Oral administration of the ethanolic extract of W. chinensis (200- and 300-mg/kg body weight) was investigated on animal model for neurological activity using open field test and hole cross test. Acetic acid induced writhing method was used to assess the analgesic activity. DPPH (1,1-diphenyl, 2-picryl hydrazyl) radical scavenging assay was used for determining the antioxidant activity, while brine shrimp lethality bioassay was used for investigating cytotoxicity. The ethanol extract of the plant produced significant reduction (P<0.05) of locomotion in both doses (200- and 300-mg/kg body weight) indicating pronounced neurological activity. Oral administration of alcoholic leaves and stem extracts significantly (p < 0.05) inhibited writhing response in mice. The percentage of scavenging of DPPH free radical was found to be concentration dependent with IC50 value of 44.10 ± 0.65 and 38.96 ± 0.50 μg/ml for leaves and stem extracts, respectively. Our findings indicate that W. chinensis may be a source of natural antioxidant with potent analgesic, neurological and cytotoxic activities.
Bangladesh Pharmaceutical Journal 22(1): 18-26, 2019
Pharmacological Values and Phytochemical Properties of Devil’s Cotton (Ulatkambal) - A Review
Authors: Chowdhury Nargis Sultana , Farjana Farhana , Jamaly Sifat , Begum Mst Nadira , Zenat Mst Elina Akhter
Published: January 2019

Devil’s cotton (Ulatkambal) is a genus in the family Malvaceae, with one or two species from Asia and Australia. Literature review revealed that Abroma augusta (Devil’s cotton) is widely used in Ayurvedic medicine as a popular drug. Devil’s cotton has been claimed to possess major biological activities like anti-diabetic, analgesic, anti-inflamatory, thrombolytic, antioxidant, hypolipidemic etc. They are also utilized by the traditional local healers of different Asian countries to treat various diseases like diabetes mellitus, as uterine tonic in emmerogogue, dysmenorrhea, amenorrhoea, sterility and other menstrual disorders, rheumatic pains of joints and headache with sinusitis. Biochemical profiling of different parts of the plant demonstrated the presence of some important phytochemicals like alkaloids, abromin, sterol, friedelin, abromasterol, taroxerylacetate, taraxeral and β-sitosterol. The aim of this review was to analyze the published report based on the medicinal values of Devil’s cotton species as well to provide the updated information about the ethnomedicinal, pharmacological as well as the phytochemical properties.
Bangladesh Pharmaceutical Journal 22(1): 109-116, 2019
Modelo de gestión de la junta administradora de acueducto rural, para desinfección de agua con tecnología sostenible en Ipetí Emberá, Panamá
Authors: Alvarez Zaldívar Marta Anayansi , Barranco Pilides Nelson
Published: January 2019

El modelo de gestión operativa de la Junta Administradora de Acueducto Rural (JAAR) de la comunidad de Ipetí Emberá, enPanamá, con la introducción de la electrólisis de salmuera como tecnología innovadora, fácil y sencilla para desinfectar el agua de consumohumano, requiere de la adición de funciones, cargos operativos y administrativos para un funcionamiento sostenible. El modelo fomenta ladifusión de conocimientos locales entre pares de otras comunidades que posean acueductos rurales sin procesos de desinfección del agua deconsumo humano y para sistemas nuevos por establecer en áreas rurales.
Caracterización de imaginación motora utilizando análisis de descomposición de bandas de energía
Authors: Moreno Iveth , Boya C. , Serracín J. , Serracín S. , Batista E. , Antelis J. , Hernández L. , Moreno R. , Gómez L. , Quintero J.
Published: January 2019

Este artículo trata sobre el análisis de las señales eléctricas generadas por el cerebro, cuando una persona imagina elmovimiento de sus extremidades superiores. Las señales que se estudian son adquiridas con un equipo de interfaz cerebro-computador y sonanalizadas utilizando la transformada Wavelet Discreta para la técnica de descomposición de banda de energía. El uso de esta técnica es novedosoen el análisis de las señales eléctricas generadas por el cerebro y los resultados que se obtuvieron indican que el uso de la técnica es factible parala caracterización de señales eléctricas provenientes del cerebro.
Análisis biomecánico del pie protésico Bioc-dm2
Authors: Martin Jhon Hernandez , Bejarano Oscar Heli , Martínez Edwin Yamith , Parra Piñeros Luis A. , Romero Jairo Alberto , Perez Fran Eduard , Castro Phillipe Meziat
Published: January 2019

Walking is one of the aspects directly compromising human wellbeing, as it has a physical and emotional impact in daily life.For this study, we delve into the challenge of improving some walking conditions in a patient suffering lower limb loss, specifically at transtibialor transfemoral levels. Given that our purpose was the analysis, design and manufacture of a lower-limb prosthetic component, which fills the needsfor functionality, it became necessary to build a foot with all the quality standards associated to each and all movements required to form thecomplex fundamental pattern of walking. Besides, this foot should also easily endure weight, daily use and physical characteristics of the patientobject of this study. When performing physical validation and during human walk, a proper response is observed in terms of mechanics, materialsand dynamics of the component, thus making evident proper construction and assembly. On the other hand, it is feasible that design and verificationof the component provided a competitive element, as compared to existing elements currently in the market. The previous situation generated theneed for verification from the National Institute for Medications and Food (INVIMA), as well as the revision of the use replying device, forcomponent verification, in accordance with ISO 10328.
THE PERCEPTION OF THE LEADER'S PERSONALITY WITH EMPHASIS ON ITS DEVELOPMENT DURING THE PAST DECADES
Authors: MAZÁNEK LUKÁŠ , KONEČNÁ ZDENKA
Published: January 2019

The field of leadership and management science as well has a very deep roots. The leader personality is perceived in the context of specific leadership style of the working groups. This academic study is aimed to search the consequences of leader personality perception in the historical framework and economy development. Significant epochs are examined from a historical and economic perspective to find a connection with the gradual emergence of theoretical ideas. Ideas that laid the foundations of managerial and economic theory, up to current state of knowledge in the field of company leadership. Thanks to identification of particular approaches and schools of thought the study allow to clearly understand the perception of leader personality development in the last decades. The study creates the wide theoretical background for future research in the field of currant theoretical leadership approaches within company management.
EEG STUDY OF THE EFFECT OF VIRTUAL REALITY
Authors: ROSENLACHER PAVEL , TOMČÍK MICHAL , BRŮNA MATĚJ
Published: January 2019

This study examines the effect of virtual reality on the human brain in terms of how much virtual reality is capable of replacing real-world experiences and affect the human brain. The focus of the study is on the area of neuromarketing where the purpose of our own investigation is to determine the effect of a 360° advertising spot using a neuromarketing approach. The main objective of our own research is to find out through the EEG brain the effectiveness of advertising spot presented using virtual reality.
Geometrical optimisation of core–shell nanowire arrays for enhanced absorption in thin crystalline silicon heterojunction solar cells
Authors: Vismara Robin , Isabella Olindo , Ingenito Andrea , Si Fai Tong , Zeman Miro
Published: January 2019

Background: Elongated nanostructures, such as nanowires, have attracted significant attention for application in silicon-based solar cells. The high aspect ratio and characteristic radial junction configuration can lead to higher device performance, by increasing light absorption and, at the same time, improving the collection efficiency of photo-generated charge carriers. This work investigates the performance of ultra-thin solar cells characterised by nanowire arrays on a crystalline silicon bulk.

Results: Proof-of-concept devices on a p-type mono-crystalline silicon wafer were manufactured and compared to flat references, showing improved absorption of light, while the final 11.8% (best-device) efficiency was hindered by sub-optimal passivation of the nanowire array. A modelling analysis of the optical performance of the proposed solar cell architecture was also carried out. Results showed that nanowires act as resonators, amplifying interference resonances and exciting additional wave-guided modes. The optimisation of the array geometrical dimensions highlighted a strong dependence of absorption on the nanowire cross section, a weaker effect of the nanowire height and good resilience for angles of incidence of light up to 60°.

Conclusion: The presence of a nanowire array increases the optical performance of ultra-thin crystalline silicon solar cells in a wide range of illumination conditions, by exciting resonances inside the absorber layer. However, passivation of nanowires is critical to further improve the efficiency of such devices.
A novel and efficient synthesis of phenanthrene derivatives via palladium/norbornadiene-catalyzed domino one-pot reaction
Authors: Zhong Yue , Wu Wen-Yu , Yu Shao-Peng , Fan Tian-Yuan , Yu Hai-Tao , Li Nian-Guang , Shi Zhi-Hao , Tang Yu-Ping , Duan Jin-Ao
Published: January 2019

Herein we report a novel palladium-catalyzed reaction that results in phenanthrene derivatives using aryl iodides, ortho-bromobenzoyl chlorides and norbornadiene in one pot. This dramatic transformation undergoes ortho-C–H activation, decarbonylation and subsequent a retro-Diels–Alder process. Pleasantly, this protocol has a wider substrate range, shorter reaction times and higher yields of products than previously reported methods.
UTILIZATION OF BOON AND CHAFF FOR MANUFACTURING LIGHTWEIGHT WALLING MATERIALS
Authors: Kazragis Algimantas , Juknevičiūte Aušra , Gailius Albinas
Published: January 2019

Lightweight composites for walls and thermal insulation, containing anhydrite (An) or aluminate cement (Al), vinyl acetate (VA) or cellulose (Cl) polymeric binders and cellulose fiber fillers (boon, chaff) were produced. The best results were obtained for transportation and construction of items containing: An ≥ 30–45 %, Al ≥ 30–50 %, VA ≥ 1–5 %, Cl ≥ 0,5–5,0 %, boon or chaff ≥ 40–47 %. Polymeric binder VA for both kinds of cement is better than Cl. An is better for boon than for chaff. Aluminate cement is a good binder for both types of fiber fillers. Density r of a composite containing cements 50–60 % is less than 400 kg/m3. According to density such composite materials are light‐weight heat‐insulating materials. Density (p ≤ kg/m3) depends on the amount of cement content. Bending strength for samples with p ≤ 400 kg/m3, containing CMC is 0,6–1,3 MPa. Coefficient of thermal conductivity for samples, density with 400 kg/m3 is 0,06 W/m‐K.
SOME ASPECTS OF MODELING BED PROCESSES IN TRAINED RIVERS
Authors: Vaikasas Saulius , Stankevičius Mindaugas
Published: January 2019

Physical modeling of sediment transport and morphology in rivers as well as wastewater dilution processes are closely related to the modeling of macro turbulent fluctuations. The physical modeling of hydraulic macro turbulent fluctuations is complicated and underestimated. The study of turbulent flow structure and verification as well as model calibration is required in this case.

Some methods of model verification by means of kinematics and turbulent coefficients scaling αKa, α x and αkare presented in the paper. Experience in hydraulic modeling of bed processes in the Neris and Nemunas rivers contributed to the viable results. As laboratory tests showed, after the scales of the Nemunas bed had been distorted 12 times, the turbulence of modeled flow increased causing 3 times more intensive wastewater dilution processes in a physical model of the Nemunas bed. When modeling the bed processes of the Neris in Vilnius in a hydraulic model with the scale distorted 6,7 times, it was determined that a more intensive turbulence caused a 25 % thinner bed soil layer and nearly 3 times higher velocity of vertical turbulent flow. This was considered when calculating the results obtained in a model into natural ones and when choosing proper means for designing riverbed hydraulic structures.
EVALUATION OF OUTCOME-BASED ACCOUNTING EDUCATION AND TRAINING IN SELECTED COLLEGES IN WEST OROMIA, ETHIOPIA
Authors: Lakew Deresse Mersha , Musa Mohammed Getahun
Published: January 2019

Purpose: The demand for accountants is increasing from time to time because of the increase in the complexity of the business environment. Higher education institutions are responsible for producing well qualified and ethical accountant required by different organisations. Specifically, Technical and Vocational education and Training (TVET) colleges play a great role in training middle and lower level accountant in Ethiopia. However, academicians, practitioner and employers are raising concern on the excellence and significance of training given in TVET colleges. The objective of this research is to evaluate the education and training in accounting offered by public and private colleges in West Oromia region, Ethiopia.

Research Methodology: This study used the cross-sectional survey to obtain the opinion of the trainee, trainers and college deans on how TVET in accounting program is performing about each of the components of CIPP model and identify the knowledge and skill gap as compared to the actual work environment. Both descriptive and inferential statistical tools were used in the analysis.

Findings: Examination of the existing TVET in accounting curriculum found that it has a limitation concerning relevance and content. The study further found that there is a lack of sufficient inputs such as an adequate number of qualified trainers, computers and Reference books. Trainers mainly use lecture methods, and there are various problems associated with continuous and summative evaluation. Therefore, it is recommended that the existing curriculum should be revisited, sufficient training inputs should be availed and cooperative training should be strengthened.Research Limitations: This research is based on the respondent’s opinion from a limited part of the country. The nationwide survey is required to conclude at the country level.

Practical Implication: the finding and recommendation given in this study can be used in strengthening TVET in accounting education and training in Ethiopia.

Originality / Value: Previous studies investigated the challenges of TVET education and training in general terms, and this specific study which focuses on TVET in accounting is the first attempt in Ethiopia.
HST F160W Imaging of Very Massive Galaxies at 1.5 < z < 3.0: Diversity of Structures and the Effect of Close Pairs on Number Density Estimates
Authors: Marsan Z. Cemile , Marchesini Danilo , Muzzin Adam , Brammer Gabriel B. , Bezanson Rachel , Franx Marijn , Labbé Ivo , Lundgren Britt , Rudnick Gregory , Stefanon Mauro , Dokkum Pieter van , Wake David , Whitaker Katherine E.
Published: January 2019

We present a targeted follow-up Hubble Space Telescope WFC3 F160W imaging study of very massive galaxies (

) selected from a combination of ground-based near-infrared galaxy surveys (UltraVISTA, NEWFIRM Medium Band Survey-II , UKIRT Infrared Deep Sky Survey (UKIDSS) Ultra-Deep Survey (UDS) at 1.5 < z < 3). We find that these galaxies are diverse in their structures, with ∼1/3 of the targets being composed of close pairs, and span a wide range in sizes. At 1.5 < z < 2.5, the sizes of both star-forming and quiescent galaxies are consistent with the extrapolation of the stellar mass–size relations determined at lower stellar masses. At 2.5 < z < 3.0, however, we find evidence that quiescent galaxies are systematically larger than expected based on the extrapolation of the relation derived using lower stellar mass galaxies. We used the observed light profiles of the blended systems to decompose their stellar masses and investigate the effect of the close pairs on the measured number densities of very massive galaxies in the early universe. We estimate correction factors to account for close-pair blends and apply them to the observed stellar mass functions (SMFs) measured using ground-based surveys. Given the large uncertainties associated with this extreme population of galaxies, there is currently little tension between the (blending-corrected) number density estimates and predictions from theoretical models. Although we currently lack the statistics to robustly correct for close-pair blends, we show that this is a systematic effect that can reduce the observed number density of very massive galaxies by up to a factor of ∼1.5, and should be accounted for in future studies of SMFs.
Filling in the Quasar Redshift Gap at z ∼ 5.5. II. A Complete Survey of Luminous Quasars in the Post-reionization Universe
Authors: Yang Jinyi , Wang Feige , Fan Xiaohui , Wu Xue-Bing , Bian Fuyan , Bañados Eduardo , Yue Minghao , Schindler Jan-Torge , Yang Qian , Jiang Linhua , McGreer Ian D. , Green Richard , Dye Simon
Published: January 2019

We present the final results from our survey of luminous z ∼ 5.5 quasars. This is the first systematic quasar survey focusing on quasars at z ∼ 5.5, during the post-reionization epoch. It has been challenging to select quasars at 5.3 < z < 5.7 using conventional color selections, due to their similar optical colors to those of late-type stars, especially M dwarfs. We developed a new selection technique for z ∼ 5.5 quasars based on optical, near-infrared (IR), and mid-IR photometry, using data from the Sloan Digital Sky Survey (SDSS), PanSTARR1 (PS1), the UKIRT Infrared Deep Sky Surveys–Large Area Survey, the UKIRT Hemisphere Survey, the VISTA Hemisphere Survey, and the Wide Field Infrared Survey Explorer, covering ∼11,000 deg2 of high galactic latitude sky. In this paper, we present the discovery of 15 new quasars at 5.22 ≤ z ≤ 5.78. Together with results from Yang et al., our survey provides a complete, flux-limited sample of 31 quasars at 5.3 ≤ z ≤ 5.7. We measure the quasar spatial density at z ∼ 5.5 and M
1450 < −26.2. Our result is consistent with the rapid decline of the quasar spatial density from z = 5 to 6, with k = −0.66 ± 0.05 (ρ(z) ∝ 10
kz
). In addition, we present a new survey using optical colors only from the full PS1 area for luminous quasars at z = 5.0–5.5, which is beyond the SDSS footprint, and report the preliminary results from this survey, including 51 new quasars discovered at 4.61 ≤ z ≤ 5.71.
Cosmological Tests of Gravity with the Latest Observations
Authors: Li Jian , Zhao Gong-Bo
Published: January 2019

We perform observational tests of modified gravity on cosmological scales following model-dependent and model-independent approaches using the latest astronomical observations, including measurements of the local Hubble constant, cosmic microwave background, the baryonic acoustic oscillations and redshift space distortions derived from galaxy surveys including the Sloan Digital Sky Survey BOSS and eBOSS, as well as the weak lensing observations performed by the CFHTLenS team. Combining all these data sets, we find a deviation from the prediction of general relativity in both the effective Newton’s constant, μ(a, k), and in the gravitational slip, η(a, k). The deviation is at a 3.1σ level in the joint {μ(a, k), η(a, k)} space using a two-parameter phenomenological model for μ and η, and reaches a 3.7σ level if a general parameterization is used. This signal, which may be subject to unknown observational systematics, or a sign of new physics, is worth further investigating with forthcoming observations.
A Combined Chandra and LAMOST Study of Stellar Activity
Authors: He Lin , Wang Song , Liu Jifeng , Soria Roberto , Bai Zhongrui , Yang Huiqin , Bai Yu , Guo Jincheng
Published: January 2019

We probed stellar X-ray activity over a wide range of stellar parameters, using Chandra and Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) data. We measured the X-ray-to-bolometric luminosity ratio (

) for 484 main-sequence stars and found a bimodal distribution for G and K types. We interpret this bimodality as evidence of two subpopulations with different coronal temperatures, which are caused by different coronal heating rates. Using the metallicity and velocity information, we find that both of the subpopulations are mostly located in the thin disk. We find no trend of R
X with stellar age for stars older than ∼4 Gyr; there is a trough in the R
X versus age distribution, with the lowest range of R
X appearing at ages around 2 Gyr. We then examined the correlation between R
X and R
Hα
(proxy of chromospheric activity): we find that the two quantities are well correlated, as found in many earlier studies. Finally, we selected a sample of 12 stars with X-ray flares and studied the light-curve morphology of the flares. The variety of flare profiles and timescales observed in our sample suggests the contribution of different processes of energy release.
Dragonfly biodiversity 90 years ago in an Alpine region: The Odonata historical collection of the MUSE (Trento, Italy)
Authors: Assandri Giacomo , Franceschini Alessandra , Lencioni Valeria
Published: January 2019

Historical collections of natural science museums play a fundamental role in documenting environmental changes and patterns of biodiversity transformation. This considered, they should have a pivotal role to plan conservation and management actions.

The MUSE - Science Museum of Trento is an Italian regional museum preserving about 5.5 million items (organised in 297 collections). About one million of them are invertebrates, 70% of which are of local origin, gathered in the collection "Miscellanea Invertebrati". Odonata account for a minor part of this collection; however, most of them are of local or regional relevance. A complete catalogue of this collection does not exist to date.

The collection was studied in 2017-2018 and this contribution aims to present the Catalogue of the historic collection of Odonata of the MUSE - Museo delle Scienze of Trento (Italy).

In all, 836 specimens of adult dragonflies and damselflies are found in the collection referring to an overall 56 species. The collection covers a period between 1924 and 1957 and refer to 74 defined localities, all located in northern Italy (most of them in Trentino - Alto Adige Region).

The samples conserved in the collection are, for several species, the only indisputable confirmation of their former occurrence in that region.
Potentials of animal, crop and agri-food wastes for the production of fly larvae
Authors: Ganda H. , Zannou-Boukari E.T. , Kenis M. , Chrysostome C.A.A.M. , Mensah G.A.
Published: January 2019

Fly larvae, in particular those of house fly (Musca domestica) and black soldier fly (Hermetia illucens), are increasingly considered for animal feed worldwide. A simple way to produce fly larvae is to expose suitable substrates to attract adult flies that will lay eggs in the substrates from where larvae will be subsequently extracted. This study aims to evaluate the potential of animal manures and agri-food wastes for maggot production and to identify the fly species developing in the substrates. Experiments were conducted in the Republic of Benin. Twenty-six substrates were left uncovered for 10 hours and maggots were harvested after four days. Fresh substrates were then added to residual substrates and left uncovered for another 10 hours for another production cycle. In total, three production cycles were monitored. In the first cycle, nearly 100% of the flies were house flies but black soldier flies appeared in the following cycles. The result showed that crop and agri-food substrates produced more larvae than manures. The highest yield at the first production cycle was obtained with the mixture of soybean bran and maize grain pericarp. Maize bran, pig manure and chicken manure also showed potential for maggot production. Other substrates such as cow and sheep/goat manure produced nearly no maggot when used alone but the amount of larvae substantially increased when attractants such as chicken offal were added, or when mixed with pig and chicken manure. Production decreased with the production cycles for the majority of substrates, except for mixtures based on spent grain and pineapple grain, which produced a large amount of larva at the second harvest. The activity of maggots led to temperature elevation and reduction of substrate biomass. This study showed that several substrates, in particular soybean bran, maize bran, pig manure and chicken manure show potential for maggot production.
Bases del poder de los mercaderes de plata de la ciudad de México. Redes, control del Consulado y de la Casa de Moneda a fines del siglo XVII
Authors: Del Valle Pavón Guillermina
Published: January 2019

En las últimas décadas del siglo XVII un pequeño grupo de mercaderes de la ciudad de México garantizaron la producción de la mayor parte de la plata que se producía en Nueva España. En el artículo se exponen las redes que articularon dichos mercaderes para adquirir la plata, el papel de los vínculos familiares y la importancia de las relaciones de confianza en el financiamiento de sus negocios. Se analiza la forma en que el crédito de los tratantes de plata garantizó el abasto de azogue, en particular cuando tomaron el control del Consulado de México y éste se hizo cargo de administrar la renta de alcabalas. Por último, se examina cómo la venalidad de los oficios reales permitió a dichos actores dominar la única Casa de Moneda de Nueva España, así como las prácticas ilícitas que llevaban a cabo en relación con la acuñación.
La proyección colonial de Chile a la Patagonia Insular en el siglo XVIII
Authors: Urbina Carrasco María Ximena
Published: January 2019

Este artículo presenta las consecuencias geopolíticas del naufragio de la fragata inglesa Wager y la recalada de otro barco, el Anna, que formaban parte de la flota de George Anson, en las costas de la Patagonia Occidental Insular en 1741. La noticia de la presencia inglesa en el despoblado y desconocido territorio insular y bordemarino al sur de Chiloé, y que se proyectaba al fin del continente, generó el despliegue de acciones tendentes a marcar presencia, como expediciones militares y misionales, la fundación de un fuerte y el patrullaje por la zona. Nada de esto se tradujo en un asentamiento permanente o incorporación efectiva de dicha frontera, pero si en la conformación de una «frontera móvil» de Chiloé, y la construcción de una imagen de la Patagonia Occidental.
Luchas y defensas escondidas. Pluralismo legal y cultural como una práctica de resistencia creativa en la gestión local del agua en los Andes
Authors: Boelens Rutgerd
Published: January 2019

En los Andes, los derechos de agua se materializan en procesos de lucha social. El artículo examina cómo la lucha por el agua de los colectivos locales no puede comprenderse sin su enraizamiento en subcorrientes dinámicas: los cimientos multicapas, a menudo ocultos, de los derechos de agua. Aquí se entrelazan estrategias comunitarias y fuentes socio-legales plurales. Las subcorrientes alimentan los socio-territorios y las culturas hidráulicas, estableciendo las bases para la defensa de los derechos locales hacia redes político-legales multi-escala. En la práctica, los arreglos y derechos propios a menudo están disfrazados por medio de escudos y estrategias de mimetismo (o imitación), que también permiten hacer uso de los medios de poder dominantes. La creación y la proliferación subsuperficiales de los repertorios sociolegales locales constituyen una importante fuente de defensa contra la usurpación de los derechos de agua y las políticas disciplinarias.
La labor de Enric Granados en el proceso de la recepción de la música de Bach en Barcelona
Authors: Bonastre Francesc
Published: January 2019

La personalidad musical de Enric Granados (1867-1916) comprende numerosas facetas, especialmente la interpretación pianística, la composición sinfónica, escénica, liederística y pianística, y la pedagogía, con la fundación de la Academia Granados (1900). Conoce la música de Bach a través de Ch. W. Bériot en París, y de F. Pedrell en Barcelona; se convierte en uno de los difusores de la música bachiana como concertista, director y pedagogo, al lado de otros destacados discípulos de Pedrell: I. Albéniz, L. Millet e H. Angles. El artículo recoge 14 conciertos barceloneses relacionados con Granados (1895-1912).
La estrofa purímica - Molde de coplas sefardíes
Authors: Weich-Shahak Susana
Published: January 2019

La estrofa purímica, forma músico-poética tradicional, ha servido para enriquecer el repertorio de las Coplas Sefardíes, demostrando que éstas constituyen un género vivo, creativo en su misma esencia. Su Corpus se ha ensanchado hasta nuestros días con nuevas coplas que reflejan el impacto de las circunstancias sobre la vida del individuo y la comunidad. La estrofa purímica -noneta de versos largos y cortos alternados, de rima característica y de una estructura musical particular- se presenta en este estudio respondiendo a diversos temas: costumbres y eventos sociales, sucesos históricos y problemas económicos. El presente artículo se dedica a la utilización modélica de esta estructura poético-musical, y se basa en materiales de mi colección catalogados y conservados en la Fonoteca Nacional (National Sound Archives) de Jerusalén.
Nuevos datos para el estudio de los músicos Nebra en Aragón
Authors: Ezquerro Esteban Antonio
Published: January 2019

Con ocasión del tercer centenario del nacimiento del compositor José Nebra en la localidad aragonesa de Calatayud, el presente artículo ofrece nuevas informaciones sobre la presencia de los diversos músicos así apellidados, tanto en Calatayud como en Zaragoza. A pesar de que algunos datos ya fueran conocidos por referencias indirectas, se aportan ahora por vez primera, las imágenes gráficas de la partida matrimonial del iniciador de la saga familiar, así como las partidas de bautismo de los hermanos (José Bernardo, José Melchor, Francisco Javier y Joaquín). Se incluye asimismo por vez primera la partida de confirmación de José Nebra (posiblemente, José Melchor), nuevos datos para establecer las conexiones entre los Nebra y los Blasco (rama familiar esta última que se desarrollaría en Sevilla), e informaciones procedentes del principal archivo musical aragonés, el de las catedrales de Zaragoza, con noticia de las actividades de los Nebra ahí desarrolladas, ejercicios de oposiciones y composiciones conservadas.
L´arpa i la cítara: la relació entre Verdaguer i Pedrell
Authors: Bonastre Francesc
Published: January 2019

[ca] Felip Pedrell i Jacint Verdaguer son les figures mes importants de la música i de la poesia, respectivament, a la Catalunya del darrer terç del segle XIX; el procés de retrobament de la veu pròpia forma part del nucli conceptual de la seva obra. En aquest article es donen a conèixer les dades fonamentals que palesen tant el seu mutu coneixement personal com la comuna relació entre les seves obres.
O organum de Tona, Catalunha
Authors: Cerqueira Luis M. G.
Published: January 2019

[pt] A palavra organum, que encontramos no documento de fundaçao da igreja do mosteiro de Tona, na Catalunha, datado de 888 d. C, foi interpretada como erro de copia ou escrita, livro de polifonía e instrumento musical. Contudo, através da comparação com um documento similar de Guimarães, no Noroeste da Península, datado de 959 d. C, concluímos que se trata de uma forma primitiva de designar o Salterio, que sobreviven na Península até ao séc. X.
Un témoin de la réception méridionale des traditions d'enseignement du Nord aux XIVe et XVe siècles : Barcelona, Biblioteca de Catalunya, M. 883
Authors: Meyer Christian
Published: January 2019

[fr] Le recueil de traités de musique conservé à la Bibliothèque de Catalogne à Barcelone sous la cote M. 883 réunit les principales matières de l'enseignement de la musique -chant liturgique, "música plana" et polyphonie (organum et déchant)- à l'exception des théories mathématiques de la "música speculativa". Il représente des traditions d'enseignement répandues dans une aire géographique comprise entre Seine et Rhin : le milieu parisien y occupe une place prépondérante (tradition d'enseignement de Jean de Garlande, Lambertus), mais on y distingue également des cultures monastiques, en particulier celle de l'ordre de Cîteaux et des Frères prêcheurs. Ce recueil, qui pourrait avoir été constitué à la faveur ou dans un milieu proche de la papauté d'Avignon (peut-être sous le pontificat du pape cistercien Benoît XII), a connu une large diffusion en Italie au XVe siècle et révèle à cet égard un aspect singulier des processus d'acculturation dans les domaines de la pratique et de la théorie de la musique en Italie depuis la fin du XIVe s. et au siècle suivant. Vers 1474, à Mantoue, Franchinus Gafurius puisa dans cette collection de traités l'essentiel de son Tractatus brevis cantus plani.
Presencia musical en la Catedral de La Seu d'Urgell en la segunda mitad del siglo XVIII a través de sus actas capitulares
Authors: Roig i Capdevila Jordi
Published: January 2019

El presente artículo supone la continuación, como segunda parte, del publicado el año anterior en esta misma revista. Se cubre con ello todo el siglo XVIII, e incluso los primeros años del siglo XIX, en lo referente a alusiones de índole musical en las actas capitulares de la catedral pirenaica (contrataciones y actividad de sus músicos protagonistas, funciones religiosas con participación musical, etc.), pues, editados en el número anterior los años 1700-1750, se prosigue ahora con los años 1751-1810. De este modo, se da noticia sobre la vida musical de esta capilla musical catedralicia, empalmando con los anteriores trabajos realizados por Felipe Pedrell e Higinio Anglés (que cubrían básicamente los siglos XVI y XVII), aproximando con ello al interesado algunas de las características fundamentales en la evolución cultural, social y artística de La Seu d'Urgell, que proporcionaron personalidad propia a la ciudad.
Der Umlauf der spanischen Handschriften aus dem Antiquariat Leo Liepmannssohns in Paris und Berlin
Authors: Romero Naranjo Francisco Javier
Published: January 2019

[de] Eines der repräsentativsten Antiquariate der zweiten Hälfte des XIX Jh. und des Anfangs des XX Jh. wurde von Leo Liepmannssohn in den Städten Paris und Berlin verwaltet. Durch die Versteigerung vieler Handschriften von J.S. Bach, Händel, Mozart, Beethoven und anderer Komponisten gewann das Antiquariat zusatzlich an Bedeutung. Deswegen ist es verstandlich, dass der Autor auf das Antiquariat stieß, als er Nachforschungen über den Umlauf dieser Handschriften anstellte. Der Forschungsgegenstand beinhaltet eine Sammlung von mehr als 300 Heften, die in der Musikabteilung der Staatsbibliothek PreuBischer Kulturbesitz zu Berlin einzusehen sind. Die Hefte umfassen die Jahreskataloge des Liepmannssohnschen Antiquariates (Berlin) der Jahre 1866 bis 1923. Jeder Katalog hat alie Verkäufe des jeweiligen Jahres in alphabetischer Reihenfolge aufgelistet und enthält neben Handschriften auch Literatur, Musikabhandlungen und Portraits verschiedener Komponisten. In diesen Katalogen sind sehr viele spanische Handschriften aufgeführt. Der Umlauf all dieser Handschriften ist so wichtig, dass Leo Liepmannssohn 1900 einen Katalog nur mit spanischen und portugiesischen Handschriften veroffendicht hat. In jenem Jahr hatte Liepmannssohn 291 spanische und portugiesische Handschriften versteigert. In diesen Versteigerungen tauchten bekannte - aber auch viele unbekannte - Dokumente, Handschriften und Musikabhandlungen auf. Durch diese Forschung wurden die Kenntnisse über Kompositionen verschiedener spanischer Komponisten des XVI. bis XIX. Jh. erweitert und im Ausland - speziell in Berlin - verbreitet.
Peters y España: edición musical y relaciones comerciales entre 1868 y 1892
Authors: García Mallo M. Carmen
Published: January 2019

Este artículo pretende ser una aportación al mejor conocimiento de la importación de música impresa en España entre 1868 y 1892 a través de un caso concreto: la relación comercial que existió durante el periodo mencionado entre la editorial alemana Peters y algunos de los editores españoles entonces activos.
El material tomado como base está formado por diecinueve documentos —esto es, dieciséis cartas, dos listas de pedido y un resguardo de envío en barco de vapor—, dirigidos en su mayoría a Peters por cinco editores y una asociación musical españoles que se conservan, en la actualidad, en un conocido archivo de Leipzig: el Sächsisches Staatsarchiv Leipzig.
A través de la lectura y análisis de dichos documentos nos acercamos a un fenómeno que, aunque conocido y estudiado, todavía encierra diversos interrogantes: cuáles eran las vías de suministro de música foránea, qué fórmulas de pago se empleaban, qué tipo de repertorio se importaba (pudiendo así aproximamos tanto a los gustos imperantes en la época como a la salida mercantil que a éstos se daba), etc.
Cap a una Història de la Música a Manresa, a partir dels manuscrits inèdits de Joaquim Sarret i Arbós (*1853;†1935) (II). Els Organistes de la Seu de Manresa
Authors: Ballús i Casòliva Gloria
Published: January 2019

[ca] Un manuscrit inèdit sobre els organistes de la Seu de Manresa, de l'historiador Joaquim Sarret i Arbós, aporta gran quantitat de dades sobre l'orgue, amb una primera noticia documentada de l'any 1496, amb el salari i les obligacions de l'organista, i amb una cronologia dels organistes des del 1562 (el Rnt. Miquel Aymerich del Bosch) fins a l'any 1865 (amb el Rnt. Mariano Matarrodona). Això permet conèixer la historia de l'orgue i l'organització dels organistes, a fi de completar l'estudi de la capella de música de la col•legiata manresana.
La Guajira: música de solistas en tierra de soledad
Authors: Peñín José
Published: January 2019

Los indígenas wayúu, conocidos comúnmente como "guajiros", habitan la Península de la Guajira compartida actualmente por Colombia y Venezuela. Es una de las etnias latinoamericanas que mantienen con mayor vigencia sus tradiciones. En el presente trabajo se hace un recorrido por su hábitat y estructura social, con especial reposo en sus manifestaciones musicales.
Documentos inéditos para la restauración de los órganos históricos de la Catedral Metropolitana de Nuestra Señora de la Asunción, de México Tenochtitlán (1688-1736)
Authors: Guzmán Bravo José Antonio
Published: January 2019

Los documentos generados por la creación de los órganos de la catedral de México, son numerosos, cargados de información y sumamente útiles para asomarnos al proceso de su construcción. Esta colección pertenece al archivo personal del historiador, Guillermo Tovar de Teresa. El pedido a España, el embarque en los galeones de la flota, la llegada y recibimiento de Tiburcio Sans, las críticas al órgano, pleito y defensa, ganando el título de veedor y examinador de instrumentos musicales en Puebla en 1698. La completa reforma del maestro organero Joseph Nassarre, con la nómina descriptiva de su proyecto de 1734-1736. Las gacetas que comentan el estreno, y el nombramiento de un afinador -curador oficial- para el mantenimiento permanente y otros documentos de interés para clavecimbalistas, musicólogos e historiadores del arte.