bluuebunny/crossref_metadata_2025 huggingface dataset:
Extratos de Achyrocline satureioides (Lam.) DC. sobre a germinação “in vitro” de Eragrostis plana Nees
Authors: Freitas Jéssica Mena Barreto de , Trapp Kássia Cauana , Kuhn Andrielle Wouters , Boligon Aline Augusti , Frescura Viviane Dal-Souto , Perez Naylor Bastiani , Tedesco Solange Bosio
Published: May 2019

A gramínea exótica Eragrotis plana Nees, conhecida como capim-annoni, é uma das principais plantas invasoras do Sul do Brasil, com a capacidade de excluir outras plantas nativas da vegetação campestre. Há uma necessidade tanto ambiental como econômica do seu controle. O objetivo foi avaliar o efeito dos extratos aquosos da espécie Achyrocline satureioides (Lam.) DC. sobre a germinação in vitro de Eragrostis plana Nees, bem como identificar os compostos presentes nesses extratos aquosos. Para preparação dos extratos foi realizada infusão de flores de A. satureioides em quatro concentrações 5, 10, 15, 25 g L-1, as quais foram avaliadas juntamente com um controle (água destilada). Todas as concentrações de extratos foram analisadas por Cromatografia Líquida de Alta Eficiência (CLAE-DAD). A seguir, foi realizado o teste de germinação e vigor das sementes de E. plana. Em relação à porcentagem de germinação de sementes de capim-annoni, os valores obtidos demonstraram redução da porcentagem na maior concentração do extrato de marcela. Quanto ao Índice de Velocidade de Germinação, todas as concentrações de extratos de marcela reduziram a velocidade de germinação. Para a análise dos compostos presentes nos extratos estudados, a CLAE-DAD revelou maiores teores de rutina, ácido caféico e quercitrina. Os extratos de A. satureioides reduzem a porcentagem de germinação.
Meningkatkan Capaian Matematika Siswa Indonesia: Kajian Kesalahan Konsep Nilai Tempat
Authors: Rahmawati Rahmawati , Nizam Nizam
Published: May 2019

Rendahnya hasil siswa Indonesia pada studi internasional sudah umum menjadi konsumsi publik. Setiap kali hasil TIMSS diumumkan, ranking serta skor adalah fokus utama. Namun, diagnosa mendalam untuk menyelami penyebab rendahnya capaian masih jarang dilakukan. Penelitian ini bertujuan untuk menggali salah satu faktor kesalahan umum yang terjadi pada siswa di jenjang pendidikan dasar, khususnya bidang studi matematika. Faktor yang ditelaah adalah (1) buku teks yang digunakan pada pembelajaran dan (2) soal-soal penilaian tingkat kelas yang lazim digunakan. Kesalahan umum dideteksi melalui analisis kuantitatif, sedangkan faktor yang memengaruhi didiagnosis dengan telaah kualitatif. Respon dari sampel 4024 siswa SD/MI kelas 4 pada studi Trend in International Mathematics and Science Study (TIMSS) 2015 digunakan untuk analisis kuantitatif. Hasil analisis kuantitatif menunjukkan siswa terkecoh dan memilih distraktor soal matematika yang sama. Terkecohnya siswa menunjukkan terjadinya kesalahan konsep nilai tempat. Siswa rancu antara nilai tempat, tempat bilangan, dan nilai bilangan. Diskusi kelompok terpumpun untuk menelaah substansi terhadap buku teks menunjukkan terjadinya simplifikasi penjelasan topik nilai tempat. Sedangkan review soal-soal topik nilai tempat pada penilaian kelas mengindikasikan bahwa secara umum, model pertanyaan menggiring hanya pada satu perspektif. Disarankan penggunaan konteks kehidupan sehari-hari untuk topik nilai tempat pada buku teks sehingga siswa mudah memahami konsep yang benar. Selain itu, penggunaan beragam stimulus untuk menilai pemahaman konsep siswa tentang nilai tempat juga diperlukan untuk meluruskan kesalahan konsep yang terjadi.
Utilization of brown rice powder on the nutritional composition, cooking
characteristics and sensory properties of beef patties
Authors: Mousavi L. , S.M.Z. Nur Farahana , W.I. Wan Rosli
Published: May 2019

Beef patties are the most popular fast food worldwide, including Malaysia. As long as a
beef patty is one of the Malaysians’ favorite western dishes and can be easily found in the
high-end western restaurant, so far assessment of the nutrient composition, cooking
characteristics and sensory properties of that was important for healthcare aspect. In the
current study, the nutritional values of beef patties incorporated with various level of
brown rice powder (BRP) (2%, 4% and, 6%) were evaluated. The result of protein content
in raw and cooked beef patties incorporated with 6% of BRP demonstrated the highest
percentage (17.41% and 17.48%, consequently). Further finding displayed that the lowest
fat concentration was recorded in the formulation of 6% BRP and 4% BRP raw and
cooked beef patties (12.44% and 11.45%) frequently. On the other hands, the results of
moisture content of 4% BRP raw beef patties and 6% BRP cooked beef patty demonstrate
that the lowest percentage (61.16% and 54.92%) while the carbohydrate concentration
recorded the highest percentage in both formulations. In additional, beef patty formulated
with 6%, BRP showed the lowest diameter reduction at 13.33% compared to other
treatment. The calorie content of cooked beef patty and cooking yield of all formulations
were recorded in the range of 584 kcal/100 g to 594 kcal/100 g and 78.09% to 80.48%
accordingly. However, 2% BRP incorporation in beef patty did not change the sensory
properties and consumer acceptability of BRP-based beef patties. In conclusion, beef patty
formulation of more than 4% BRP in beef patties was effective in improving protein, ash,
carbohydrate content and percentage of diameter reduction while reducing fat content.
Blood Pressure Variability and Its Relationship with Cognitive Function in Elderly Patients with Essential Hypertension and Type 2 Diabetes
Authors: Xu Man
Published: May 2019

Objective: To investigate blood pressure variability of Elder hypertensives with type 2 diabetes and its relationship with cognition. Methods: A total of 143 elderly hypertensives were enrolled and divided into diabetic group (59 cases) and non-diabetic group (84 cases). The difference of general clinical characteristics, biochemical parameters, carotid ultrasound, a neuropsychological Scales and 24-hour ambulatory blood pressure (24hABPM) parameters between the two groups of subjects were compared. Then, the two groups (diabetic group and non-diabetic group) were further divided into (Mild cognitive dysfunction) subgroup (MMSE>26) and normal cognition subgroup (MMSE≤26), respectively. On the basis of MMSE scores, the difference of the parameters of ABPM between the two subgroups was analyzed. Results: Compared with the control group, 24hSBP, 24hPP, dSBP, dPP, nSBP, nPP, 24hSSD, dSSD, nSSD, 24hSCV, dSCV and nSCV were significantly higher in the diabetic group (p<0.05). However, cognition was lower in the diabetic group. No significant difference was found in the circadian pattern of blood pressure between the two groups. 24hSSD, dSSD, nSSD, 24hSCV, dSCV, nSCV were significantly higher in the MCI subgroup than normal cognition subgroup in both diabetic and non-diabetic groups(p<0.05), and they were negatively associated with scores of MMSE, the correlation coefficient were -0.235, -0.246, -0.341, -0.158, -0.222, -0.238 (0.001≤P<0.05). Conclusion: The study showed that in the elderly with hypertension, the mean systolic blood pressure and blood pressure variability were both higher in the diabetic group, and the cognition was lower instead. Whether or not with diabetes, blood pressure variability was always higher in the MCI subgroup. Blood pressure variability increased in patients with diabetes, and was associated with cognitive decline.
Clinical Analysis of Hospital-acquired Bloodstream Infection in the Elderly
Authors: Sun Baojun
Published: May 2019

Objective: This study was designed to get epidemiological characteristics, etiology characteristics, prognosis assessment and prognostic factors of hospital-acquired bloodstream infection (HABSI) in the elderly in Chinese PLA General Hospital and aimed at providing a reference for HABSI in the elderly on clinical diagnosis and treatment to improve the prognosis. Methods: The clinical data and pathology data of 210 cases of the elderly patients with HABSI from 2009 to 2012 in geriatric wards were retrospectively analyzed. Compare the clinical assessment effects of APACHE-II score, SAPS-II score and SOFA score to HABSI prognosis in the elderly by plotting the receiver operating characteristic curve. Use univariate and multivariate logistic regression analysis to get prognostic factors of HABSI in the elderly. Results: Univariate analysis of mortality: Day 1 apache -> 18 II score, lung infection, invasive ventilation, chronic hepatic insufficiency, chronic renal insufficiency, substantive organ malignant tumor, deep venipuncture, indwelling gastric tube indwelling ureter, complicated with shock and acquired bloodstream infections in the elderly patients with 7 days survival state association is significant. Day-1 SOFA score>7, chronic liver dysfunction, chronic renal insufficiency, concurrent shock, hemodialysis and 28-day survival status of patients with acquired bloodstream infection in elderly hospitals were significantly associated. Multivariate unconditioned logistic regression analysis related to death: Day-1APACHE-II score>18, parenchymal malignant tumors, and concurrent shock are independent risk factors for 7-day death in elderly patients with acquired bloodstream infection. Day-1 SOFA score>7, chronic renal insufficiency, and concurrent shock are independent risk factors for 28-day mortality in elderly patients with acquired bloodstream infection. Conclusion: The incidence of acquired bloodstream infections in the elderly was 1.37%. The 7-day and 28-day mortality rates were 8.10% and 22.38%, respectively. Concurrent shock is 26.7%. The 28-day mortality rate of concurrent shock patients was 48.21%. The best outcome score for the 7-day prognosis of elderly patients with acquired bloodstream infection was the Day-1APACHE-II score, followed by the Day-1 SOFA score. The best score for the 28-day prognostic assessment was the Day-1 SOFA score.
EFFORTS TO TRAIN THE CHARACTER OF STUDENTS BY USING THE COOPERATIVE LEARNING MODEL TYPE GI (GROUP INVESTIGATION) IN SCIENCE LEARNING
Authors: Santoso Agus
Published: May 2019

Education up to now is considered as a medium to build knowledge as well as the personality of children to become better human beings, so positive learning must be instilled in learning. Planting characters can be realized through cooperative learning type group investigation. This research is to overcome learning problems in class related to the character of social care, environmental care, responsibility, and cooperation. This research was conducted in two cycles, using a characteristic behavior observation sheet instrument. Descriptive data analysis by looking at the increase in the percentage of character behavior in students. The implementation of learning in the first cycle is 94% and the second cycle is 100%. Based on the results of observations in the first and second cycles there are positive character developments in students heading in a better direction than before. To build a positive character of character training students need to be carried out continuously so that their development is increasing and entrenched.
Optimasi Adsorpsi Fe Dan CO2 Dalam Proses Kondensat Amonia PT.PIM Menggunakan Karbon Aktif Pada Fixed Bed Column Dengan Pendekatan Response Surface Methode
Authors: Marchsal Brian
Published: May 2019

Penelitian ini mempelajari tentang proses adsorpsi unsur logam Fe dan CO2 di dalam proses kondensat yang menggunakan adsorben karbon aktif dengan sistem aliran kontinyu yang dioptimalkan dilakukan dengan metode respon surface. Konsentrasi awal dan laju alir inlet divariasikan sebagai variabel proses sedangkan waktu breakthrough dan kapasitas adsorpsi sebagai variabel yang diamati. Rasio Ct/C0 memakai ambang batas maksimum konsentrasi kontaminan yaitu 0.025 ppm untuk Fe dan 5 ppm untuk CO2 serta kapasitas adsorpsi pada kondisi breakthrough. Sebuah model pengaruh dari konsentrasi dan laju umpan masuk disusun untuk masing-masing respon dan didapatkan model polinomial kuadratik. Nilai waktu breakthrough dan kapasitas adsorpsi dalam kondisi optimal tidak terdapat perbedaan yang jauh dengan nilai prediksi yang diberikan oleh model. Untuk range C0 Fe : 0.4-0.7 ppm, C0 CO2 : 30-100 ppm dan Qw : 20-30 ml/ menit, variabel optimum yang direkomendasikan adalah C0 Fe : 0.5 ppm, C0 CO2 : 61.38 ppm dan Qw : 30 ml/menit. Hasil eksperimen di dapat waktu breakthrough Fe : 224.5 menit, waktu breakthrough CO2 : 198.4 menit dan kapasitas adsorpsi Fe : 0.029 mg/g, kapasitas adsorpsi CO2 : 3.2 mg/g.
PENERAPAN TEKNOLOGI (PROTOTIPE) PENGOLAHAN AIR PAYAU MENGGUNAKAN MULTI FILTER BERBAHAN ALAMI BAGI MASYARAKAT NELAYAN DESA PUSONG BARU KECAMATAN BANDA SAKTI KOTA LHOKSEUMAWE
Authors: Dewi Ratni , Sari Ratna , Hakim Lukman
Published: May 2019

Daerah pesisir di Indonesia identik dengan masyarakat miskin dan pemukiman kumuh, termasuk Desa Pusong Baru Kecamatan Banda Sakti Kota Lhokseumawe. Karena lokasinya di pesisir, hampir sebagian besar penduduk desa tersebut, mempunyai mata pencarian sebagai nelayan dengan taraf perekonomian tergolong kurang mampu. Penyediaan air bersih untuk masyarakat nelayan Desa Pusong Baru masih mengalami permasalahan terutama rendahnya tingkat pelayanan dan penyediaan akses air bersih. Dalam memenuhi kebutuhan akan air bersih khususnya untuk minum dan memasak, masyarakat terpaksa membeli air tawar yang dijual eceran dengan harga yang relatif mahal jika dilihat dari kemampuan ekonomi mereka. Untuk mengatasi permasalahan di atas dibutuhkan penerapan teknologi pengolahan air payau yang sesuai dan tepat guna, praktis, portable dan tidak memakan lahan yang luas dengan harga yang terjangkau dan mudah dalam pengoperasian dan pemeliharaannya. Pada kegiatan penerapan iptek ini dilakukan pengolahan air payau dengan menggunakan multi filter berbahan alami di dalam tiga buah tabung filtrasi yang disusun seri. Pada filter pertama, kedua dan ketiga digunakan pasir silika, karbon aktif, dan zeolit sebagai penukar ion. Hasil keluaran filter ketiga diolah kembali dengan melewatkan air melalui tiga buah cartridge ukuran 0,3 mikron, 0,1 mikron dan catridge karbon aktif yang akan menyaring kotoran-kotoran halus yang terikut dalam air produk tabung filtrasi ketiga. Untuk mendapatkan air layak minum, air bersih yang telah diproses tersebut dimasukkan ke dalam RO system. Dari hasil kegiatan yang telah dilakukan, prototipe pengolah air payau dengan menggunakan multi filter berbahan alami mampu menjernihkan air sehingga layak untuk dikonsumsi sebagai air bersih dan air minum.Kata kunci : Air bersih, karbon aktif, multi filter, pasir silika, pusong baru, zeolit
Nutrients demand of cactus forage
Authors: Moreira João Macedo , Pérez-Marin Aldrin Martin , Araújo Jucilene Silva , Lambais George Rodrigues , Sales Aldo
Published: May 2019

The study aimed to evaluate the efficiency of nutrient use in three cactus forage (CF) cultivars (Opuntia stricta and Nopalea cochenillifera), 365 days after planting under different types of fertilizer in two research sites (Condado and Riachão) of the semi-arid region of Paraiba state, Brazil. The experimental design was a randomized block design with treatments in a factorial scheme (3×4), three cultivars of CF (Orelha de elefante Mexicana; Miúda; Bahiana), and four fertilizer treatment (Control; Manure; Manure with Nitrogen; Mineral fertilization) with four replications. The CF cultivars did not differ significantly in nutrient use. That means of physiological efficiency by CF cultivars were 1.62, and 2.36 kg of biomass per kg of nutrient applied in Condado and Riachão, respectively. The efficiency of nutrient recovery was 16% for the Condado, according the following order: K> P> Ca> N> C = Mg and 12% for Riachão: K> P> N> C = Ca = Mg. In the two research sites, the treatment with mineral fertilization significantly increased the efficiency use of N, P and K in comparison to the other treatments. The average for efficiency of nutrient utilization was 25% and 19% for Condado and Riachão, respectively, in the following order for Condado: K> P> N> Ca = Mg> C, and Riachão: K> P> N> C> Mg = Ca. In a CF production system aiming to obtain a yearly harvest cycle, it is necessary to replenish of K and P to maintain the nutritional balance between the soil and CF plant.
artikel hubungan sekolah dengan masyarakat
Authors: Anzika Moni
Published: May 2019

The relationship between the school and the community is a communication process between the school and the community to try to instill the community's understanding of the needs of the educator's work and encourage community interest and responsibility in advancing the school. , study of the influence of society on schools, improvement in behavior of students
RISK OF CIRCULATORY DISEASES DEVELOPMENT AMONG THE OPEN-PIT MINE WORKERS IN THE NORTH-WESTERN PHOSPHOROUS COMPANY IN THE ARCTIC
Authors: Bykov V R , Talykova L V , Mikhaleva V S
Published: May 2019

It is known that a person suffers from tension in many organism systems under the influence adverse factors in the Arctic region. First of all, the work of cardiorespiratory system changes under the influence of cold followed by changes in thermoexchange, thermoregulation and water exchange. The article presents the results of risk estimation of circulatory diseases development among workers engaged in basic and auxiliary professions in an open-pit mine and processing complex in the North-Western Phosphorous Company (NWPC). The results are based on data analysis of periodic medical examination (PME) in the period 2013-2015. Real prevalence in circulatory diseases has been also studied among the workers engaged in mining industry in an open-pit mine according PME results. It has been stated that the low level of occupational risk does not allow to bind the origin of circulatory diseases with the workplace and profession. The higher indexes of circulatory diseases prevalence in the investigated group are more likely to be related with recruiting to NWPC the inhabitants mainly from the other regions of the Russian Federation. These indexes can also be explained by the age-related features, socio-economic and climate and geographical conditions of labour activity and residence. The detailed collection of professional anamnesis is necessary for more profound analysis of PME.
Managing a Photograph Collection: ARKzin photo archive Case Study
Authors: Heđbeli Živana , Mokrović Nikola
Published: May 2019

Paper deals with whole process of organization of photo documentation produced by magazine ARKzin. ARKzin was published from 1991 to 1998 and first existed within the Antiwar Campaign Croatia, a network of peace, antiwar, and human rights groups, and later became independent subject. Collection of photographs consists of around 1500 items, taken from different authors, with some of them later becoming well-known photographers, and covers many subjects: protests, war atrocities, portraits of people interviewed for ARKzin, various social events, and graphics. The collection itself is valuable overview of social and political situation in Croatia in the nineties. The collection was transferred from ARKzin as creator to Documenta in 2011, with the aim of identification of items, organization and digitization, and publishing on virtual archive on the Internet. The paper is presenting the challenges of collection management in both physical and virtual environment, with emphasis on physical organization of the collection.
European Archival Records and Knowledge Preservation (E-ARK) Project. Goals and Achievements: an Overview
Authors: Paulič Anja
Published: May 2019

E-ARK project is co-founded by the European Commission under its ICT Policy Support Programme (PSP) within its Competitiveness and Innovation Framework Programme (CIP). The aim of the E-ARK project is to provide efficient access to the workflows related to the three main activities of an archive - acquiring, preserving and enabling re-use of information. Gathering existing national and international best practices is a key process in creating a usable methodology for electronic document archiving. Within its first year, E-ARK achieved all its planned milestones, submitting all eight contracted public deliverables to the European Commission. These deliverables already dealt with topics such as overview of the current situation of the digital archiving best practices, SIP, AIP and DIP specifications, user requirements, several inputs for technical implementations of EARK tools, and many more. At the moment, the methodology of the E-ARK project is being used in several pilots in various national contexts.
Users and Search in Archival Databases
Authors: Semlič Rajh Zdenka
Published: May 2019

Users searching for information in archival databases may rely only on themselves and on their experiences. They cannot rely on the help of archivist, as if they could if researching the traditional paper based finding aids. It is of course necessary to keep in mind that the search can be carried out only for data entered in the database. The first survey of users of archival information systems in Slovenia was presented in 2014. For the first time, in the archival profession in Slovenia and in the region, authors tried to introduce the basic concepts and theories in the field of user behaviour in information systems. The article presents the review of the literature relating to the user’s behaviour and reports on the results of the analyses of online accessible database SIRAnet. It presents partial results of a broader research conducted within the preparation of the doctoral thesis dealing with the creation of authority records within archival databases.
Publications оf Archival Documents аnd Archival Science
Authors: Rybakou Andrei
Published: May 2019

The article is devoted to one but important direction of archival documents and information use - the publication of documents of the National Archival Fond of the Republic of Belarus, which are deposited in the state archives. The article briefly discovers the legal requirements for publishing activities, including organizational aspects of the preparation and conduct of the work fixed in the rules of work of the state archives. The author notes the significant achievements of the Belarusian archivists in this area in recent years, which are supported by both quantitative and qualitative indicators. However, despite the progress made in publishing activities, a number of problems to be solved still remain. Among them, the author notes the absence of uniform rules of the publication of archival documents, the lack of a single center, which coordinates the work of publication at the national level, undeveloped Belarusian diplomatique, which creates difficulties with the publication of documents of the 14th-18th centuries, the need to develop the requirements for electronic publication. Particular emphasis is placed on the role of archival science in the development of evidence-based approaches to the selection of papers for publication, development of common approaches to the transmission of texts published, preparation of relevant guidelines.
The Scientific Use of Archives: Case Studies from London Metropolitan Archives Highlighting the Importance of STEM
Authors: Harris Tim
Published: May 2019

This paper illustrates the scientific uses for which archives can be a major contributing factor in the fields of education and research. For too long archives have only been the preserve of the historian but there are many more uses and factors of relevance to today’s modern world. This paper reveals some of the ways that archives have been unlocked and used more widely by different groups of researchers. Whilst historians and genealogists have concentrated their studies on names and places, there are many more uses for archives to explain some of the complexities and specialisms of human activity. London Metropolitan Archives (LMA) has sought to extend the use of its City archive collections in new ways which could be made relevant to broad subject areas known as STEM (Science, Technology, Engineering and Mathematics). The archives believed that historical sources could add depth to the teaching of subjects like science.
Medievalia: a Place Where Archival Science and History Meet and Then Separate Again
Authors: Popovici Bogdan-Florin
Published: May 2019

This paper seeks to present some aspects from the experience of Medievalia Project, undertaken by University of Bucharest - Faculty of History and National Archives of Romania, aiming to offer a national portal for medieval records. The paper will offer a presentation of some strategic approach taken for digitization and for retrieval of “documents”.
Current Situation and Solutions in Handling Archival Records in Digital Format
Authors: Nguyen Linh , Tran Thuy
Published: May 2019

Archival records in the digital format (also called electronic archival records) are formed on the basis of data messages or documents digitized in information carriers during the operation of individuals, organizations and state offices. The Socialist Republic of Vietnam has issued some documents which act as legal base for the management of digital archival records. However, this insufficient system of legal documents along with weak material and technical/ technological basis has difficulties in confronting the handling process of electronic archival records in Vietnam nowadays. In the current situation, Vietnam needs to have timely and synchronous measures so as to well process its electronic archival records.
Digitally Born Records: Acquisition, Long-Term Preservation and Confirmation of Long-Term Legal Validity
Authors: Rybakou Andrei
Published: May 2019

The article is devoted to the identification and possible solution of problems associated with transfer of digitally born (electronic) records to archives, ensuring their long-term preservation, integrity and legal significance for further use. The author notes that at present conceptual approaches to the construction of a system for the acquisition of electronic records by state archives, organization of their stock-taking, storage and use have been developed. These archival processes are supposed to be performed in four stages. For the storage of electronic records, it is planned to create a centralized repository of electronic documents based on the cloud service. However, a number of issues still require a solution. Some of them are in the legal sphere, others are of a technological nature. The traditional problem for archivists is the limited financial resources necessary to implement the plan.
Private Archives and Their Role in Preserving the Nations Memory
Authors: Al-Hinai Abdulmohsin Said Sultan
Published: May 2019

Private archives are an indispensable complement to public archives. With the records they store, protect and preserve, they represent nations memory, an important source of information and add value, validity and integrity to certain information and data. The paper discuses a few obstacles and problems private archives face, from disunity of the definitions of the term private archives in the first place, to not receiving proper support from the government and lack of expert knowledge and modern technologies. The National Records and Archives Authority (NRAA) is working on awareness of the importance of private records, private archives and cooperation between public and private archives, with official visits and direct contact, education seminars, awareness campaigns, annual ceremonies etc. Building and upgrading such collaboration in compliance with international standards and state regulations would result in permanent preservation of archival records, which represent a source for scientific research and an advantage to be taken of by creators itself, public and the state.
Urnas en línea: estudio de un contexto funerario prehispánico registrado en un sector de las tierras bajas de Tucumán (Argentina)
Authors: Miguez Gabriel E. , Caria Mario A. , Muntaner Ana C. , González Baroni Lucía G. , Guerrero Rita A. , Barazzutti María J.
Published: May 2019

Se presentan los análisis de un contexto funerario compuesto por cuatro vasijas dispuestas en línea procedente del sitio Anta Yacu 2, ubicado en la zona de Horco Molle (Departamento Yerba Buena, Tucumán). La estrategia metodológica consistió en la excavación y registro de los contenidos internos de las vasijas y el análisis de los materiales recuperados (cerámica, huesos humanos) con el objetivo de establecer las características principales de las prácticas funerarias en este sector del piedemonte tucumano. Los resultados sugieren que los restos óseos de cuatro individuos jóvenes fueron depositados de forma secundaria en dichas vasijas (toscas y sin decoración), las cuales habrían sido enterradas hacia el año 200 a.C. Por último, se revisan e integran otros casos análogos previamente reportados para el piedemonte tucumano-salteño y se postulan algunas implicancias sobre este tipo de inhumaciones.
La Colección Zavaleta y su traslado al Field Museum de Chicago: una aproximación desde la vida social de los objetos
Authors: Gluzman Geraldine A.
Published: May 2019

La colección de objetos arqueológicos y restos óseos humanos depositada en el Field Museum of Natural History de Chicago se inscribe dentro de una compleja trama histórica que este artículo busca explorar. Procedentes de tres provincias del Noroeste argentino (Salta, Tucumán y Catamarca) fueron adquiridos en 1904 durante la Louisiana Purchase Exposition llevada a cabo en Saint Louis (Missouri, Estados Unidos) mediante su compra directa a Manuel B. Zavaleta, su colector. Se propone analizar algunas de las principales condiciones sociales y políticas que permitieron su exposición en Saint Louis hasta su actual resguardo en el museo de Chicago y, en baja cantidad de bienes, posterior intercambio con otras instituciones. Se empleará el concepto de campo científico como espacio de tensiones entre diversos actores, instituciones y actividades para dar cuenta de las vicisitudes sufridas por las piezas desde su recuperación en Argentina. Una aproximación desde la vida social de los objetos permitirá comprender cómo los bienes arqueológicos fueron motivo de múltiples disputas sociales y de diversas lecturas de significación acerca del pasado y del futuro, no solo de las piezas sino también de los grupos indígenas contemporáneos en las postrimerías del siglo XIX e inicios del XX.
PELATIHAN PENELITIAN TINDAKAN KELAS (PTK) BAGI GURU SD NEGERI DI KECAMATAN SUKARAJA KABUPATEN SELUMA
Authors: Dihamri Dihamri , Haimah Haimah , Srifitriani Abditama
Published: May 2019

Guru- guru Sekolah Dasar (SD) kesulitan naik pangkat khususnya dari golongan IV/a ke IV/b karena tidak dapat memenuhi persyaratan dalam  bidang karya tulis ilmiah. Tujuan akhir  pengabdian ini adalah agar  guru-guru SD memiliki kompetensi  menyusun proposal Penelitian Tindakan Kelas (PTK). Pelatihan akan bermanfaat bagi guru dalam peningkatan profesional dan memenuhi persyaratan kenaikan pangkat. Metode yang digunakan untuk mencapai  tujuan tersebut adalah pelatihan dan bimbingan. Guru-guru  dilatih penyusunan proposal  PTK.  Pelatihan dilaksanakan enam kali pertemuan, bimbingan kelompok tiga kali pertemuan dan bimbingan individu masing-masing  tiga kali pertemuan. Bimbingan juga dilakukan lewat hp (handphone), wa (WhatsApp), dan email. Selama kegiatan dilakukan monitoring dan setelah kegiatan diadakan evaluasi. Kegiatan pelatihan dilaksanakan sesuai rencana. Hasilnya guru-guru dapat menyusun proposal PTK bahkan ada yang dapat menyusun laporan PTK.
Ação dos tutores e sua relação com o desempenho dos estudantes em curso de Licenciatura em Química sob a perspectiva da analítica da aprendizagem
Authors: Oliveira Souza Barbosa Gláucia Mirian de , Carvalho Nunes João Batista , Chaves João Bosco
Published: May 2019

Este artigo busca responder os seguintes objetivos: elaborar um modelo estatístico das ações dos tutores no AVA que interferem no desempenho dos estudantes do curso de Licenciatura em Química, na modalidade de educação a distância, da Universidade Aberta do Brasil / Universidade Estadual do Ceará (UAB/UECE), com fundamento na analítica da aprendizagem; e conhecer as ações que interferem no desempenho dos estudantes sob a perspectiva de tutores e estudantes, comparando o resultado com o modelo estatístico obtido na pesquisa. Para tanto, a metodologia está assentada no paradigma pragmático e na abordagem mista. Adotou o método estatístico, com uso da técnica de análise de regressão logística binária, suplementado pelo emprego de questionários com itens abertos e fechados, aplicados a tutores e estudantes. Ao final, foi obtido um modelo preditivo contendo 11 ações desenvolvidas pelos tutores, sendo sete que aumentam a probabilidade de aprovação dos estudantes e quatro que devem ser evitadas pelos tutores ou cuja frequência deve ser diminuída, pois reduzem a probabilidade de aprovação.
Ownership Structure and Corporate Governance as The Affecting Factors of Liquidity Policy in Consumption Goods Industry Sector Companies in Indonesian Stock Exchange
Authors: Wijaya Erric , Noviany Dita
Published: May 2019

This study discusses the influence of ownership structure and corporate governance as affecting factors to liquidity policy in consumer goods industry sector of companies listed in Indonesia Stock Exchange. The dependent variable in this research is liquidity policy which can be proxied with cash holdings, while the independent variables in this research are: ownership structure that can be proxy by insider ownership and foreign ownership, and corporate governance which can be proxy by with variable board size and board composition, firm size and growth sales as a variable control. This research uses multiple linear regression method with panel data approach. The sample used 21 companies in manufacturing industry which classified into consumer goods sector during the period 2012-2015. The result of the research shows that the variable of ownership structure is only variable insider ownership which has influence to cash holding. While from the corporate governance variable, it is only board size that affect cash holding. The value of adjusted R squared in this study amounted to 92.6%.
The Influence of Role Ambiguity and Role Conflict on Employee Creativity at PT XYZ
Authors: Nursanti Tinjung Desy , Putra Juliano Satria Indra
Published: May 2019

The objectives of this research are to determine the influence of role ambiguity and role conflict on employee creativity either partially or simultaneously. This research used associative method by collecting primary and secondary data obtained through the literature study, interviews, and distributing questionnaires to 30 respondents that happens to be the employee of PT XYZ. Then data is processed using multiple regression method. From the data analysis, it is shown that role ambiguity has a positive and significant influence to employee creativity as much as 36,9%. Another result of this research shows that role conflict doesn’t have a significant influence on employee creativity with a value of 7,6%. While another result of this research shows that role ambiguity and role conflict simultaneously had positive influence significantly as much as 40,4% on employee creativity at PT XYZ
Mechanochemical Activation of Materials to Produce Conductive and Superconductive Substances for Batteries
Authors: Svietkina Olena , Bas Kostiantyn , Alfaqs Fadi , Ziborov Kyrylo , Fedoskin Valery
Published: May 2019

It has been demonstrated that vibratory impact mineral loading results in the formation of solid solutions. A technique to determine concentration dependence of inversion degree of solid binary solutions according to the known values of their components activity has been proposed. Values of thermodynamic functions of the solutions mixing in terms of statistic formulas as well as by means of immediate processing of the experiment have been determined.
Modelling Research of Gas Flow Resistance and the Powder Holdup during Two-Phase Flow (Gas + Powder) through the Descending Packed Bed
Authors: Panic Bogdan
Published: May 2019

In the shaft metallurgical units (blast furnace, Corex, Finex and Midrex installations) the powder is generated within the process with charge materials as its source or it is introduced into the unit within the process procedure. Accumulation of small particles inside the furnace is diversified and depends on the applied process procedure. Noticeable disruptions of the flow might occur at large degree of dustiness. The article presents the results of model investigation of gas flow resistance and the powder holdup during two-phase flow (gas + powder) through the descending packed bed. The aim of the research was to determine the conditions of the descending bed suspension in the following systems: sinter + coal powder and blast furnace pellets + coal powder. Air was used as a gas. The study results were the basis for defining the conditions in which bed suspension of the model systems occurs. It was found that in case of sinter + coal powder system the most intensive powder holdup in the bed occurs together with the optimal conditions for bed movement distortions.
Computed tomography-guided Tru-cut biopsy of lung mass, as an important diagnostic tool: Histopathological characteristics, age, sex distribution, and risk factors in Misurata Cancer Center, Libya
Authors: Sidoun Mohamed Alhashmi M. , Topov Yasin , Elfageh Mohamed A. , Mansour Noura A. , Jwaid Abdullah A. , Jahan Alhadi M. , Alragig Mussa A.
Published: May 2019

Background: Lung biopsies may be classified according to the method of access or by the reason for biopsy. Tru-cut biopsy is a simple, relatively safe, rapid, and reliable technique for the diagnosis of lung mass lesions, particularly with the aid of computed tomography (CT) scan. This procedure is commonly used worldwide to detect different kinds of lung tumors, but its usefulness in Libya is not yet studied.

Objectives: The aim of this study was to assess the usefulness of Tru-cut biopsy as a diagnostic method in lung tumors and also to determine the incidence of lung cancer in various ages and sex groups and in relation to smoking data.

Patients and Methods: Retrospective study was done on 136 patients who underwent CT-guided Tru-cut biopsy from January 2012 to March 2015. The included patients have lung mass lesions suspected to be neoplastic according to chest radiograph and/or CT scan.

Results: We found biopsies and histopathology reports of 136 cases. The patients’ age was from 20 to 85 years with the peak incidence in the sixth and seventh decades. The benign lesions were 18 (13.23%), and malignant lesions were 118 (86.76%) documented microscopically. The most common tumor was squamous cell carcinoma (25.17%), followed by adenocarcinoma (23.02%) and small cell lung carcinoma (17.26%). Nonspecific inflammation was found in 8.63%.

Conclusion: CT-guided Tru-cut biopsy is a simple, safe, and reliable procedure with high diagnostic accuracy for the diagnosis and subtyping of lung cancer. The definitive result of malignancy is a base for correct decision for the patient's treatment after careful clinical correlation with performance state, radiology findings, and complete serological investigations.
Slice-torus Concordance Invariants and Whitehead Doubles of Links
Authors: Cavallo Alberto , Collari Carlo
Published: May 2019

In this paper we extend the definition of slice-torus invariant to links. We prove a few properties of the newly-defined slice-torus link invariants: the behaviour under crossing change, a slice genus bound, an obstruction to strong sliceness, and a combinatorial bound. Furthermore, we provide an application to the computation of the splitting number. Finally, we use the slice-torus link invariants and the Whitehead doubling to define new strong concordance invariants for links, which are proven to be independent of the corresponding slice-torus link invariant.
On the maximal temporal amplitude of down stream running nonlinear water waves
Authors: Ramli Marwan
Published: May 2019

This paper concerns with the down-stream propagation of waves over initially still water. Such a study is relevant to generate waves of large amplitude in wave tanks of a hydrodynamic laboratory. Input in the form of a time signal is provided at the wave-maker located at one side of the wave tank; the resulting wave then propagates over initially still water towards the beach at the other side of the tank. Experiments show that nonlinear effects will deform the wave and may lead to large waves with wave heights larger than twice the original input; the deformations may show itself as peaking and splitting. It is of direct scientific interest to understand and quantify the nonlinear distortion; it is also of much practical interest to know at which location in the wave tank, the extreme position, the waves will achieve their maximum amplitude and to know the amplitude amplification factor. To investigate this, a previously introduced concept called Maximal Temporal Amplitude (MTA) is used: at each location the maximum over time of the wave elevation. An explicit expression of the MTA cannot be found in general from the governing equations and generating signal. In this paper we will use a Korteweg - de Vries (KdV) model and third order approximation theory to calculate the approximate extreme positions for two classes of waves. The classes are the wave-groups that originate from initially bi-chromatics and Benjamin-Feir (BF) type of waves, described by superposition of two or three monochromatic waves. We show that for initially bi-chromatics signals, the extreme position does not depend on the phases of the mono-chromatic components. For BF signals, however, the phases of the mono-chromatic components influence the extreme position essentially. The theoretical results are verified for the case of bi-chromatics with numerical as well as experimental results; for BF signals we use an analytical solution called the Soliton on Finite Background (SFB) for comparison.
The two dimensional generalized Weyl fractional calculus and special functions
Authors: Chaurasia V. B. L. , Agnihotri Mukesh
Published: May 2019

The object of this present paper is to derive a relation between the two dimensional I-transform involving a general class of polynomials and the Weyl type two dimensional Saigo operators of fractional integration. The results derived here are general in nature and include the results given earlier by Saigo, Saxena and Ram [10],Saxena and Ram [8], Saxena and Kiryakova [9] and Chaurasia and Srivastava [12].
Fractional calculus of the $ bar H $-function
Authors: Singh Lal Sahab , Singh Dharmendra Kumar
Published: May 2019

The subject of this paper is to derive a fractional calculus formula for $ bar H $-function due to Inayat-Hussain whose based upon generalized fractional integration and differentiation operators of arbitrary complex order involving Appell function $F_3$ due to Saigo & Meada. The results are obtained in a compact form containing the Reimann-Liouville, Eredlyi-Kober and Saigo operators of fractional calculus.
On the structure of generalized polyhedral semigroups with zero deficiency
Authors: Ahmadidelir Karim , Doostie H. , Gholami R.
Published: May 2019

The polyhedral or triangle groups and some generalizations of them, such as binary polyhedral groups, have been studied by several authors. In this paper, we introduce two classes of semigroups that have the same presentation as these generalizations of polyhedral groups and investigate their structures, such as finiteness, their relationship with the groups presented by the same presentation.
Retrospective evaluation of risk factors for oral cavity and oropharynx cancers in patients under the program of head and neck cancers prevention
Authors: Kowalski Andrzej , Olszewski Jurek , Zielińska-Bliźniewska Hanna
Published: May 2019

Introduction: The aim of the study was to analyze the risk factors for oral cavity and pharyngeal cancer in people examined under the Head and Neck Cancer Prophylaxis Program. Material and methods: The study was conducted in a total of 300 patients, including 186 women and 114 men, as part of the Head and Neck Cancer Prevention Program in 2014–2018. Before the laryngological examination, the patients completed a demographic and medical questionnaire regarding the risk factors of head and neck cancer, including education, reported disease symptoms, smoking addiction, number of cigarettes smoked daily, alcohol consumption, frequency of visits in a dental office, oral hygiene measures, number of sexual partners, oral sex, family medical history of head and neck cancer. Results: The subjects reported the following symptoms: hoarseness 43.33%, difficulty swallowing 21.33%, pain or mouth burning 20.33% and other symptoms were observed in 46.33%. The main dental symptoms were: bleeding from the gums during teeth brushing in 48.89%, dry mouth 45.56%. Currently 20.33% of respondents smoke, whereas 54% of patients smoked in the past. In the analyzed material, the majority (80%) consumed alcoholic beverages. 27.67% of respondents admitted having oral sex, including 24.73% of women and 32.46% of men. After performing the extended diagnostics, the tumor was found in 10% of the subjects. C onclusions: Statistical significance of differences was found: between hoarseness and alcohol consumption, both in women and in men, between hoarseness and smoking in women, between difficulty in swallowing and smoking in women, between burning/pain in the mouth and smoking in men, between hoarseness and the cultivation of oral sex in men, between the difficulty of swallowing and the practice of oral sex in the studied men and between burning/pain in the oral cavity and the occurrence of malignancy.
The preferred leadership and followership styles of employees in state- and privately-owned organizations in Serbia and Macedonia
Authors: Ivanoska Kalina Sotiroska , Markovic Zorica , Sardzoska Elisaveta
Published: May 2019

The aim of the study is to determine the preferred leadership and followership styles, as well as the statistical significance of differences between those preferences among individuals employed in both state and privately owned companies in Serbia and Macedonia. Leadership and followership are important for the efficient functioning of all organizations. Leadership and followership issues are particularly important in transition countries, such as Serbia and Macedonia, where directors general of organizations are no longer appointed politically but are leaders selected according to their capacities. Nationality and type of the organization ownership, the relation between gender and position occupied by an individual within a business organization (a manager, an employee), as well as the preferred style of leadership and followership, have been analyzed. The study was carried out on the sample of 172 participants from Serbia and Macedonia. The data were collected by means of the Personal Questionnaire for Followership Styles designed by Robert E. Kelley (1998), and Fiedler’s LPC scale (Least Preferred Coworker, 1984) which was used to evaluate the preferred leadership style. The results indicate that there is no difference in the preferred leadership styles in relation to gender, nationality or positions occupied by the company employees, but there is a difference between the employees who are in the state- or in the privately-owned companies. The participants working in state owned companies prefer a permissive leadership style, i.e. relationship-oriented. The results show that most of the employees in both state- and privately-owned business organizations prefer an active followership, with statistically significant differences compared to the other followership styles. No relationship was found between gender, nationality, type of organization ownership and position occupied by the individual within a business organization, for the preferred followership style.