bluuebunny/crossref_metadata_2025 huggingface dataset:
Pastas de relleno para reintegración volumétrica de esculturas en cera. Primeros resultados experimentales
Authors: Del Moral Azanza Nerea , Sánchez Ortiz Alicia
Published: April 2020

La conservación de esculturas en cera supone un gran reto para el restaurador al tratarse de un material que presenta diversas dificultades derivadas tanto de sus propiedades físicas como de sus procesos de envejecimiento natural. Con el tiempo, los propios materiales adicionados a la cera para la preparación de las pastas de modelar sufren transformaciones químicas que ocasionan un aumento de la fragilidad en este tipo de objetos. Este hecho unido a la acción de agentes de degradación externos, sobre todo cambios bruscos de temperatura, en el ambiente expositivo puede conllevar la formación de micro-fisuras y grietas, y en grado extremo la existencia de fracturas y pérdidas del material, haciendo necesario efectuar tratamientos de reintegración en las zonas dañadas. Este trabajo muestra los primeros resultados obtenidos tras someter a estudio ciertas características físicas de la cera, a fin de desarrollar un método científico de intervención en lagunas. Se ha partido de ocho posibles pastas de relleno para analizar sus intervalos de fusión y su comportamiento tras ser sometidas a envejecimiento artificial, con el objetivo de encontrar una pasta idónea para la restauración de los modelos anatómicos en cera de la colección Javier Puerta de la Universidad Complutense de Madrid. Los resultados que se exponen podrían ser aplicables a otras colecciones de ceroplástica y/o artefactos en cera.
Policromía de Retablos en el Norte de España: Asturias, siglos XVII-XVIII
Authors: Gómez González Marisa
Published: April 2020

Reseña sobre el libro de Carlos Nodal titulado Policromía de Retablos en el Norte de España: Asturias, siglos XVII-XVIII es fruto de una Beca de Investigación en Arte, otorgada por la Fundación María Cristina Masaveu Peterson.
La joya histórica como objeto de arte. Problemas de conservación
Authors: Aranda Huete Amelia
Published: April 2020

La joya durante mucho tiempo sólo interesó al individuo como objeto material. El elevado valor de los materiales, oro y plata principalmente, las perlas y las piedras preciosas implica que las piezas se transformen en función de los estilos artísticos y de los usos que de ellas den sus propietarios. Los inventarios históricos proporcionan un panorama muy completo pero las fuentes artísticas son más ricas e interesantes. La pintura, en todos sus géneros, la escultura y sobre todo los diseños de joyas que han llegado hasta nosotros son fundamentales para conocer la evolución de la joyería histórica.
Presentación
Authors: Ordóñez Goded Cristina , Ordóñez Goded Leticia
Published: April 2020

Jornadas de Conservación y Restauración de Artes Decorativas. (Grupo de Artes Decorativas del GEIIC) celebradas en Madrid en Junio de 2012.
Ge-conservación Nº 8
Authors: Bruquetas Galán Rocío
Published: April 2020

Ge-Conservación es una publicación periódica del GEIIC, cuyo objetivo es contribuir al desarrollo científico, a la difusión y al intercambio de los conocimientos en materia de conservación y restauración del Patrimonio Cultural. Está dirigida principal, pero no exclusivamente, a los países de habla española y portuguesa. La revista pretende tener un espíritu crítico y dará prioridad a los enfoques interdisciplinares, a la argumentación de criterios y a la metodología. Está abierta a todas las personas cuyas propuestas respondan a los objetivos y características de la publicación. Esta revista provee acceso libre inmediato a su contenido bajo el principio de hacer disponible gratuitamente la investigación al público, lo cual fomenta un mayor intercambio de conocimiento global.
Authenticity in Transition: Changing Practices in Contemporary Art Making and Conservation
Authors: García Fernández-Villa Silvia
Published: April 2020

Authenticity in Transition: Changing Practices in Contemporary Art Making and ConservationErma Hermens, Frances Robertson (eds) (2016)Archetype PublicationsPáginas: 205ISBN: 9781909492363
RISIKO INVESTASI EKUITAS DALAM PERBANKAN SYARIAH
Authors: Hasta Setyaning Runci
Published: April 2020

Di Kontrak Musharakah dan Mudharabah, profil risiko PT mitra potensial (Mudarib atau mitra Musharakah) adalah pertimbangan penting untuk mengevaluasi risiko vestasi untuk melakukan uji tuntas. Uji tuntas adalah bagian dari tanggung jawab fidusia IIFS sebagai investor IAH mendanai berdasarkan bagi hasil dan kerugian (Mu- dharabah) atau basis bagi hasil dan kerugian (Musharakah). Profil risiko termasuk catatan masa lalu dari manajemen tim dan kualitas rencana bisnis, dan manusia sumber daya yang terlibat dalam aktivitas bisnis. Tingkat Risiko Pengembalian Tingkat Pengembalian Risiko adalah eksposur neraca keseluruhan di mana ketidakcocokan menemukan antara aset dan saldo dari penyedia dana (Sahib ul mal). Ini adalah tanggung jawab bank untuk mengelola harapan Sahibul mal dan kewajiban kepada pemegang akun berjalan. Peningkatan suku bunga acuan dapat mengakibatkan Investasi yang memiliki Pemegang Rekening (IAH atau Sahib ul mal) ekspektasi tingkat pengembalian yang tinggi. Itu berbeda dari bunga menilai risiko karena Bank prihatin dengan hasil kegiatan investasi pada akhir periode investasi. Ini tidak ditentukan secara pasti.
Faktor Strukturasi Dalam Komodifikasi Berita Kriminal Begal
Authors: Lukitawati Berliana
Published: April 2020

Realitas pasar menggambarkan bahwa media berada dibawah tekanan ekonomi persaingan yang keras
dan ketat, fungsi media sebagai pemberi edukasi dalam menyampaikan informasi yang benar telah
bergeser. Berita-berita kriminal kembali menyedot perhatian pembacanya, dengan kehadiran kasus
kriminal begal di Depok. Tampilannya vulgar baik secara foto, maupun teks. Baik di media cetak,
elektronik, maupun siber. Hal ini tampak lebih nyata melalui penyajian gambar, foto, judul yang
memblow up peristiwa kriminal, melalui faktor strukturasi yang membentuk komodifikasi berita.
Mengingat kasus begal sesungguhnya hanyalah kasus lama yang berulang. Selain itu Depok justru
memiliki jumlah data kejahatan begal terendah, namun memperoleh stigma sebagai kota Begal. Tujuan
penelitian ini adalah untuk mengkaji realitas faktor strukturasi dalam komodifikasi berita begal motor
di Depok yang direpresentasikan dalam media online. Obyek penelitian ini adalah Detik.com,
Kompas.com, dan Liputan6.com. Bahan penelitiannya berita begal motor di Depok pada ketiga media
tersebut. Unit analisisnya kata, kalimat, judul, lead, foto/gambar , grafis dan keseluruhan teks. Penelitian
ini menggunakan metode analisis framing model Zhongdang Pan dan Gerald M. Kosicky.
MODEL KONSELING HOLISTIK ALKITABIAH KEPADA ANAK AUTIS
Authors: Kawangmani Soleman , Santoso Stanley
Published: April 2020

ABSTRAK - Jumlah anak autis terus bertambah.  Menurut data UNESCO pada tahun 2011 diperkirakan ada 35 juta orang yang menderita autism, artinya rata-rata ada 6 kasus autism per 1.000 orang dari populasi dunia.  Fenomena ini harus disikapi positif oleh orang percaya dengan cara memberikan bimbingan rohani yang khas kepada mereka.  Tulisan ini bertujuan untuk menemukan model yang holistik alkitabiah kepada anak Autis.  Penelitian ini menggunakan pendekatan kualitatif dengan metode hermeneutika teks Alkitab dan studi literatur.  Hasil penelitian yaitu perlu model konseling holistik alkitabiah (Model BHA) kepada anak Autis.  Model BHA adalah model bimbingan Kristen berdasarkan Alkitab dan juga memadukan berbagai pendekatan lain kepada anak Autis untuk memenuhi kebutuhannya secara holistik.Kata kunci: Model Konseling, Holisti alkitabiah, anak Autis
KONSELING STRES BAGI PENGASUH ANAK BALITA
Authors: Nurwindayani Efi , Nurwiyati Eva
Published: April 2020

ABSTRAK - Penelitian ini berjudul: Konseling Stres Pada Pengasuh Anak Balita. Tujuan penelitian ini adalah untuk menjelaskan cara mengatasi stres pada pengasuh anak balita. Model penelitian adalah kualitatif. Penelitian kualitatif dapat didesain untuk memberikan sumbangan terhadap teori, praktis, kebijakan, masalah-masalah sosial dan tindakan. Pengumpulan data diambil dari literatur, yaitu buku-buku dan informasi yang jelas sumbernya untuk dianalisa dan wawancara dengan beberapa pengasuh anak baliita. Hasil penelitian adalah langkah-langkah mengatasi stres secara teologis dan praktis sehingga menolong setiap pengasuh anak dalam mengatasi stres yang dialaminya.Kata Kunci: Konseling, Stres, Pengasuh Anak Balita
KHOTBAH EKSPOSISI NARASI YANG KREATIF DAN KONTEKSTUAL BAGI ANAK-ANAK GENERASI Z USIA 5-6 TAHUN
Authors: Yemima Kezia , Stefani Sarah
Published: April 2020

Gereja memiliki tugas untuk membina setiap warga gerejanya.  Sekolah Minggu merupakan program pembinaan warga gereja bagi anak-anak untuk mengenalkan mereka kepada Tuhan Yesus.  Salah satu cara untuk mengenalkan anak-anak kepada Tuhan Yesus adalah khotbah eksposisi narasi.  Anak-anak yang dilayani yaitu para generasi Z yang berusia 5-6 tahun. Tujuan dari penelitian ini adalah untuk menemukan cara khotbah eksposisi narasi yang kreatif dan kontekstual bagi anak-anak generasi Z usia 5-6 tahun.  Penelitian ini menggunakan teknik penelitian kualitatif dengan metode hermeneutika teks Alkitab dan studi literatur.  Hasil dari penelitian ini adalah khotbah eksposisi narasi kreatif dan kontekstual bagi anak-anak generasi Z usia 5-6 tahun.  Metode khotbah ini merupakan metode khotbah yang isinya didasarkan pada proses hermeneutika yang benar dan disampaikan secara kreatif serta kontekstual sesuai dengan karakteristik dan kebutuhan anak.  Kata kunci: Khotbah Eksposisi Narasi, Generasi Z, Anak 5-6 tahun.
TINJAUAN TEOLOGIS MENGENAI PEMAHAMAN UMAT TERHADAP INKULTURASI DAN DAMPAKNYA: STUDI KASUS GEREJA KATOLIK GANJURAN
Authors: Usmanij Petrus Antonius , Akbar Ganesha Muharram
Published: April 2020

Tulisan ini membahas tentang pemahaman umat terhadap inkulturasi di Paroki Hati Kudus Tuhan Yesus Ganjuran yang bertujuan untuk memaparkan pemahaman, pandangan serta tanggapan umat terhadap inkulturasi di Gereja Katolik Paroki Hati Kudus Tuhan Yesus Ganjuran Jawa Tengah. Penelitian dilakukan untuk mengukur bagaimana umat memandang inkulturasi dan tanggapan umat terhadap inkulturasi di Paroki Hati Kudus Tuhan Yesus Ganjuran. Penelitian ini diharapkan agar dapat digunakan oleh Paroki Hati Kudus Tuhan Yesus Ganjuran untuk melihat bagaimana umat memandang dan menanggapi inkulturasi di Paroki Hati Kudus Tuhan Yesus Ganjuran. Data diperoleh melalui survei langsung ke lokasi penelitian dan menggunakan teknik wawancara dengan umat di Paroki Hati Kudus Tuhan Yesus di Ganjuran. Hasil Penelitian menunjukkan bahwa umat telah memahami inkulturasi sebagai penyesuaian dan pengakaran Injil ke dalam suatu budaya setempat serta menanggapi secara positif inkulturasi di Paroki Hati Kudus Tuhan Yesus Ganjuran yang telah umat menghayati pesan Injil serta berdampak bagi kehidupan umat.
Contributions to the fauna of Kılıçkaya (Yusufeli, Artvin, Turkey)
Authors: GÖKTÜRK Temel
Published: April 2020

This study was carried out between
2016 and 2017 (spring, summer and autumn months) in order to determine the
fauna of Kılıckaya village and its surroundings in the Yusufeli district in the
northeast of Artvin province in the Eastern Black Sea Region. Kılıçkaya and the
surrounding area; A total of 114 animal species were identified including 18
mammals, 25 birds, 2 reptiles, 2 amphibians and 67 invertebrates. No endemic
fauna species were found in Kılıçkaya and its environs. The threat categories
of 47 taxa were evaluated according to the IUCN threat category. The
distributions of the identified species by IUCN threat category are 1 NT, 14
VU, 32 LC. 36 species observed in the study area are subject to Bern
Convention.
The flora of Alanbaşı and Bakırtepe villages (Yusufeli, Artvin, Turkey) and its surroundings
Authors: AKYILDIRIM BEĞEN Hayal , YÜKSEL Emrah
Published: April 2020

This study has been carried out between 2017 and 2018 in
order to determine the flora of Alanbası and Bakırtepe (Yusufeli, Artvin,
Turkey). The research area under review takes place in Colchic province of
Euro-Siberian floristic area of Holarctic region and is found in the A8 square
according to grid system of Davis. The study area lies between 780 and 2150 m
elevation above the sea level. In this study, total 448 taxa belong to 75
families and 302 genera were determined. 16 of them belong to Pteridophyta, the
remaining 432 taxa were Magnoliophyta, which included 5 taxa
from the Pinidae and 427 taxa from the Magnoliidae. The largest families recorded
were as follows: Poaceae (62 taxa), Asteraceae (57 taxa), Rosaceae (30 taxa),
Fabaceae (28 taxa), Lamiaceae (26 taxa), Brassicaceae (20 taxa), Apiaceae (20
taxa), Boraginaceae (17 taxa), Plantaginaceae (11 taxa), Caprifoliaceae (9
taxa) and Orobanchaceae (9 taxa). The percentage of phytogeographical origins
of 259 taxa was determined. The distribution of the taxa according to the
phytogeographical regions was as follows: Avrupa-Sibirya with 161 taxa (31,5%),
Iran-Turan with 81 taxa (15,9%), Mediterranean with 17 taxa (3,3%) and
multiregional or of unknown phytogeographic origin with 193 taxa (49,3%). The
life form spectrum of 391 taxon was as follows: Hemicryptophytes 127 taxa
(24,9%), Cryptophytes 95 taxa (18,6%), Phanerophytes 62 taxa (12,1%),
Chamaephytes 54 taxa (10,6%) and Therophytes 53 taxa (10,4%). The taxa that
unknown the life form spectrum is 61. Endemism is 6,8% and included 35 endemic
taxa and 63 non-endemic rare plants.
Effect of cow manure on growth and bioactive components of Gynura pseudochina (Asteraceae)
Authors: PERKASA Achmad Yozar , SAGALA Danner , MULYANA Erik , TAUFIKA Rahmi , DELYANI Rista
Published: April 2020

The
objective of this study is to determine the effect of different amounts of cow
manure on growth and leaf content of Gynura
pseudochina, a medicinal plant. The experiment was arranged in a randomized
block design. The first factor was the dose of cow manure with three levels (0
g polybag-1 (control), 500 g polybag-1 and 1000 g of polybag-1). Each experiment was repeated as
4 times. The data were analyzed with variance analysis by SAS
9.1.3 programme, significant differences at 5% were also analyzed by Duncan's
Multiple Range Test. As a
result of the studies, it was observed that the fertilization treatment with
different doses of cow manure did not provide a significant difference in
growth after 3 weeks after planting, but the leaf width was the highest after 4
weeks. In this study, it was determined that cow feces and fertilization did
not increase the content of bioactive compounds of the leaf of Gynura pseudochina and the growth of
canopies and tubers. The high rate of caterpillar infestations that occurred
two weeks after planting disrupted the growth of Gynura pseudochina and the production of bioactive compounds. The
results of the study clearly showed that cow manure did not properly increase
the growth of canopies, tubers and the content of bioactive compounds of Gynura pseudochina.
New locality record of Lacerta agilis (Squamata: Lacertidae) in Turkey
Authors: BÜLBÜL Ufuk , KOÇ Halime , ÖZKAN Hatice , ÖZTÜRK İhsan , KUTRUP Bilal
Published: April 2020

In this study, it was given the locality record of the sand lizard (Lacerta agilis) from Yeşilköy Village, Pazar District of Rize
Province of Turkey. This new record revealed the second locality for L. agilis from the eastern Black Sea
coast of Anatolia. The metric and meristic features of the adult, subadult and
juvenile specimens were compared to the features of the specimens of the
species, L. agilis in the literature.
New locality record of Ablepharus budaki (Squamata: Scincidae) in Turkey
Authors: ÖZKAN Hatice , BÜLBÜL Ufuk , KOÇ Halime
Published: April 2020

The
Budak’s snake-eyed skink (Ablepharus budaki) is recorded from Sütçüler District of Isparta province in
Turkey. The metric and meristic characters of the specimens were found similar
to the specimens of A. budaki
reported in the literature. Surprisingly, the new locality in the present study
coincides exactly among to the distribution areas of A. kitaibelii, A. budaki
and the mixed clade specified in the literature.
النحو وتعليمه
Authors: Wardana Musytahar Ali
Published: April 2020

المستخلص

إن قضية تعليم النحو للأجانب يشغل عقول المدرسين ومصممي برنامج تعليم اللغة العربية للأجانيب وتلك المشكلات تتمثل عادة في اختيار الموضوعات المناسبة، وطريقة التدريس وغير ذلك. فإن الطالب الأحنبي ليس له قدرة لغوية كافية كما يملكها الناطق الأصلى، وإنه يعيش في بيئة غير عربية وفي مجتمع أجنبي. لهذا فإن النحو الذى يراد تعليمه لا بد أن يختلف إلى حد ما، ولا بد كذلك أن يحمل صفات خاصة ومميزة تفرقه بالنحو الذى يراد تعليمه لابناء العرب.

الكلمات الرئيسية : علم النحو، تعليم النحو، الطريقة التقابلية
MENINGKATKAN KEMAMPUAN KOMUNIKASI DAN KONEKSI MATEMATIK SERTA MINAT BELAJAR SISWA MADRASAH ALIYAH MELALUI PENERAPAN PENDEKATAN PEMBELAJARAN KONTEKSTUAL
Authors: Royani Rina , Usuludin Usuludin
Published: April 2020

This paper will present the results of experiments in a class by conducting initial and final tests as well as in the control class by conducting mathematics learning in Madrasah Aliyah through contextual approaches, as an effort to improve communication and mathematical connections and student learning interests. Respondents in this study were 72 students from class X Natural Sciences in the city of Bandung. The instruments used include tests of mathematical communication skills, tests of mathematical connection abilities and questionnaires. Interest in learning mathematics. It was found from the researcher that in the mathematics learning class using a contextual approach, communication skills and mathematical connections were better than ordinary classes, even though both of these abilities were classified as low. While interest in learning mathematics in the experimental class is better than in the control class with moderate differences. As for the other things, it turns out that there is no association between communication abilities and mathematical connections Keywords: Mathematic Communication; Mathematic connection; contextual approach
La musicalité comme ressource naturelle pour tous les bébés et tous les parents
Authors: Gratier Maya
Published: April 2020

La musicalité est définie comme une aptitude fondamentale, présente dès la naissance, permettant au bébé non seulement de percevoir des organisations complexes de sons et de gestes mais aussi de participer aux propositions musicales des adultes. La voix des adultes est une source naturelle de musicalité, empreinte à la fois d’émotion sociale et de rythmes et de motifs mélodiques aisément mémorisés par les bébés. Les compétences musicales des bébés, qui s’expriment et se développent au cours des premiers mois de la vie, sont aujourd’hui bien documentées. Les adultes savent chanter pour et avec les bébés aussi bien qu’ils savent intuitivement parler pour et avec les bébés. La musicalité naturelle sert peut-être ainsi à permettre les rencontres musicales entre adultes et bébés, source de plaisir et de connaissances partagées. Elle sert aussi à soutenir une créativité sonore et gestuelle chez le tout-petit, accompagnant l’exploration du sens des mots. Au cours de la seconde année de vie, les chansons inventées sont associées aux premières productions verbales et reflètent, comme pour les phrases parlées, un ensemble de règles musicales apprises sans instruction.
La musicalité est-elle un héritage de notre histoire biologique ?
Authors: Aimé Carla , Le Covec Mathilde , Bovet Dalila , Esseily Rana
Published: April 2020

La musicalité ( i.e. l’ensemble des capacités associées à la perception, à l’appréciation et la production musicale) est largement répandue chez notre espèce. Selon certains chercheurs, elle aurait évolué car elle favoriserait la survie et/ou la reproduction. Ainsi, les origines biologiques de la musicalité ont été étudiées dans la littérature, chez l’espèce humaine mais aussi chez d’autres espèces. Les études suggèrent des fonctions adaptatives, dont l’attractivité en tant que partenaire de reproduction, la communication mère-bébé, ou encore la cohésion des groupes sociaux. Dans cette revue comparative, nous présenterons les données existantes sur la musicalité chez les espèces humaine et non-humaines pour chacune des fonctions évoquées ci-dessus. Nous discuterons ensuite la convergence évolutive de la musicalité chez certaines espèces ainsi que son origine biologique.
Chine : la résilience sociale à l’épreuve du Covid-19
Authors: Vermander Benoît
Published: April 2020

L’épidémie de Covid-19 a d’abord pris l’État-Parti chinois au dépourvu. Il a ensuite mobilisé et encore renforcé toutes les techniques de contrôle social dont il dispose, afin de juguler la pandémie qui menaçait. Mais, sur les réseaux sociaux, une partie de la population laisse émerger sa frustration face aux restrictions imposées à l’information et à l’initiative. Contrôle accru et frustration plus affirmée laissent présager des évolutions dont le cours reste imprévisible.
École, orientation et stéréotypes de sexe : quels liens ?
Authors: Canzittu Damien , Wiels Evelyne
Published: April 2020

Cette étude examine la pratique des enseignantes de l’enseignement préscolaire à partir d’une analyse descriptive de leurs comportements verbaux et non verbaux. L’objectif est de déterminer si les comportements de ces enseignantes induisent ou non des stéréotypes de sexe auprès des élèves. Les données proviennent de l’observation in situ de neuf séances de cours d’environ 30 minutes, dans des écoles belges francophones. Les résultats indiquent que, généralement, les enseignantes tendent à déconstruire les stéréotypes, mais une analyse plus détaillée montre une variation très importante des comportements selon les individus. Cette différence marquée selon l’enseignante observée pose question quant au caractère inconscient de la transmission des stéréotypes de sexe et à l’intérêt de former les enseignant·e·s aux problématiques d’inégalité entre sexes, tant au niveau des intentions pédagogiques qu’en ce qui concerne leur mise en place effective.
“The Soldier didn’t Run Away, He Went Looking for Strength”: Exploring Migration Imaginaries through Artistic Careers in Rap in Senegal
Authors: Navarro Cécile
Published: April 2020

From the study of migration imaginaries to the study of artistic mobilities, taking into account artistic expression has considerably renewed the approach of migrations. In particular, musical productions have been considered as a privileged way of collecting migration imaginaries. Is music, and especially rap, only then the faithful representation of a migrant voice? By putting migration imaginaries in perspective with the lived experiences of mobility during artistic careers, developing on the examples of Senegalese rap groups Wagëblë and Daara-J Family, the article shows how artists can appeal to a particular migration imaginary, that of the “soldier” rather than that of the “adventurer” to stage their artistic career, according to the conventions specific to the musical genre to which they wish to belong.
Retrieval and mapping of chlorophyll-a concentration from Sentinel-2 images in an urban river in the semiarid region of Brazil
Authors: Pereira Alessandro Rhadamek Alves , Lopes João Batista , Espindola Giovana Mira de , Silva Carlos Ernando da
Published: April 2020

Recently, the Poti river mouth region has experienced environmental impacts that resulted in a change of landscape in its dry season, highlighting the eutrophication and proliferation of phytoplankton, algae, cyanobacteria and aquatic plants. Considering the aspects related to water-quality monitoring in the semiarid region of Brazil from remote sensing, this study aimed to evaluate the performance of Sentinel-2A satellite data in the retrieval of chlorophyll-a concentration in Poti River in Teresina, Piaui, Brazil. The chlorophyll-a concentration retrieval and mapping methodology involved the study of the water surface reflectance in Sentinel-2A images and their correlation with the chlorophyll-a data collected in situ during the years 2016 and 2017. The results generated by the Chl-1, Ha et al. (2017), Chl-2, Page et al. (2018), and Chl-3, Kuhn et al. (2019) equations show the need for calibrating the algorithms used for the Poti River water components. However, the empirical algorithm Chl-2 shows a correlation has been established to identify the spatiotemporal variation of chlorophyll-a concentration along the Poti River broadly and not punctually. The spatial distribution of this pigment in maps derived from Sentinel-2A is consistent with the pattern of occurrence determined by the in situ data. Therefore, the MSI sensor proved to be a tool suitable for the retrieval and monitoring of chlorophyll-a concentration along the Poti River.
The Relative Contribution of Cognitive and Physical Components in Volleyball Injuries Prediction
Authors: Hesami Parvaneh , Balouchy Ramin , Ghasemian Mohammadreza
Published: April 2020

Background: Researchers have always sought to investigate the factors affecting sports injuries in order to identify ways of preventing and controlling such factors. These studies have more emphasis on physical aspects, while the cognitive and psychological components may also be effective. Objectives: The present study was conducted to answer the question whether or not injury can be predicted in volleyball athletes through physical and cognitive components. Methods: For this purpose, 50 volleyball players with the age range of 18 to 25 years old participated in the study. The subjects were evaluated using Barratt impulsiveness scale, Functional movement screen and continuous performance test (for sustained attention). Then, the injuries occurrence were recorded. Furthermore, logistic regression test was run to predict injury in athletes and the bi-serial correlation coefficient was used to investigate the relationship between the factors. Results: The findings showed that there was a significant negative correlation between functional movement screen scores and injuries occurrence. There was also a significant positive correlation between omission and commission errors and injury occurrence, meaning that alongside the increase in the omission and commission errors, the injury occurrence increased; however, there was no significant relationship between the scores of Barratt impulsiveness scale and the injury occurrence. Conclusions: The findings of this study showed that mental and cognitive components, along with the physical factor, play a significant role in injury occurrence in volleyball players, so it is better to consider it in prevention and rehabilitation programs.
Síndrome postraumático: narrativa sonora de un personaje y su historia
Authors: Arizmendi Luis A.
Published: April 2020

Práctica de la asignatura de Tratamiento y publicación de audio que reproduce y pone en contacto con el flujo de trabajo propio de un entorno profesional a partir de la realización de un proyecto basado en la creación de una narración sonora.
Existence of periodic positive solutions to nonlinear Lotka-Volterra competition systems
Authors: Benhadri Mimia , Caraballo Tomás , Zeghdoudi Halim
Published: April 2020

We investigate the existence of positive periodic solutions of a nonlinear Lotka-Volterra competition system with deviating arguments. The main tool we use to obtain our result is the Krasnoselskii fixed point theorem. In particular, this paper improves important and interesting work [X.H. Tang, X. Zhou, On positive periodic solution of Lotka-Volterra competition systems with deviating arguments, Proc. Amer. Math. Soc. 134 (2006), 2967-2974]. Moreover, as an application, we also exhibit some special cases of the system, which have been studied extensively in the literature.
A note on confidence intervals for deblurred images
Authors: Biel Michał , Szkutnik Zbigniew
Published: April 2020

We consider pointwise asymptotic confidence intervals for images that are blurred and observed in additive white noise. This amounts to solving a stochastic inverse problem with a convolution operator. Under suitably modified assumptions, we fill some apparent gaps in the proofs published in [N. Bissantz, M. Birke, Asymptotic normality and confidence intervals for inverse regression models with convolution-type operators, J. Multivariate Anal. 100 (2009), 2364-2375]. In particular, this leads to modified bootstrap confidence intervals with much better finite-sample behaviour than the original ones, the validity of which is, in our opinion, questionable. Some simulation results that support our claims and illustrate the behaviour of the confidence intervals are also presented.
The Effects of Chicken Manure Application Rates on Growth and Yield of Swiss Chard (Beta vulgaris var. cicla L.)
Authors: Dlamini Chawe , Masarirambi Michael T. , Wahome Paul K. , Oseni Tajudden O.
Published: April 2020

Swiss chard (Beta vulgaris var. cicla) is a leafy vegetable that belongs to the Chenopodiaceae family. The leaves are cooked, if still tender they are used in salads. Over the years, Emawati have adopted the use of inorganic fertilizers as they are easy to apply and come with recommended application rates. However, their main drawback is that they are environmentally unfriendly especially when washed into rivers, streams and other water bodies. For this cause, the use of animal manures has been promoted. Four-week-old Swiss chard seedlings were transplanted on the 4th of February, 2016 in 1.5 x1.5 m plots with an inter and intra row spacing of 45 cm and they were irrigated twice a day during the first week and every second day from the second week until the end of the experiment. The experiment was conducted at the Horticulture Department Farm, Faculty of Agriculture and Consumer Sciences, Luyengo Campus of the University of Swaziland to determine the effects of chicken manure application rates on growth, yield and quality of Swiss chard. Four chicken manure application rates (10, 20, 40 and 80 t/ha) and a recommended 900 kg/ha, inorganic basal fertilizer with a 125 kg/ha LAN top dressing fertilizer used as a control. A Randomised Complete Block Design (RCBD) with four replicates was used. The study showed that the application of 80 t/ha of chicken manure improved the growth and yield of Swiss chard. It is recommended that farmers may use 80 t/ha of chicken manure because it gave the best results compared to the other treatments. The highest fresh shoot mass (237.5 g) was obtained in plants treated with 80 t/ha of chicken manure while the lowest fresh shoot mass (100.0 g) was obtained in plants fertilized with inorganic fertilizers. It was concluded that 80 t/ha was the best under the conditions of this study and it was found that fresh mass at the end was the most important parameter to consider.
Effect of Caffeine at Different Concentrations on Behavior and Motor Activity in Mice
Authors: Saadawi Sakina S. , Alennabi Khairi A. , Baayo Sumaya , Fares Amera , Alosta Najwa , Aburawi Suher M.
Published: April 2020

Aims: This article aimed to study the effect of different caffeine concentrations on behaviour and motor activity of mice.

Place and Duration of Study: This study took place in Faculty of Pharmacy, University of Tripoli, and was conducted between 2017 to 2018.

Methodology: The experiment was carried out using 24 male mice (25-30 gm). Plus maze was used for screening antianxiety effect of caffeine. While swimming maze was used to test the antidepressant effect. Descriptive statistics was performed using SPSS (version 22), followed by one sample Kolmogorov-Simirnov test. One-Way ANOVA was applied to compare between groups and Post Hoc test (LSD). 

Results: At a dose of 100 mg/kg, caffeine produce significant decrease in the duration of immobility using forced swimming maze; while the lower (25 mg/kg) and the higher (200 mg/kg) doses did not produce any changes compared to the control. In plus maze, Caffeine decreases the anxiety measure at the dose used of 100 mg/kg; but did not change the anxiety measure when lower (25 mg/kg) or higher (200 mg/kg) doses used compared to the control. The spontaneous motor activity was decreased significantly after administration of the higher dose of 200 mg/kg; the lower dose (25 mg/kg) showed insignificant increase, while the dose of 100 mg/kg produce insignificant decrease in the spontaneous motor activity.

Conclusion: Caffeine has dose dependent effect, in a dose 100 mg/kg it produce anxiolytic and antidepressant like action, while lower (25 mg/kg) and higher (200 mg/kg) doses did not show any changes. Caffeine also produce dose dependent decrease in the spontaneous motor activity, this indicate that caffeine produce CNS depression with higher doses.
Buoyancy-Induced MHD Stagnation Point Flow of Williamson Fluid with Thermal Radiation
Authors: Ouru J. O. , Mutuku W. N. , Oke A. S.
Published: April 2020

Flow of fluids subjected to thermal radiation has enormous application in polymer processing, glass blowing, cooling of nuclear reactant and harvesting solar energy. This paper considers the MHD stagnation point flow of non-Newtonian pseudoplastic Williamson fluid induced by buoyancy in the presence of thermal radiation. A system of nonlinear partial differential equations suitable to describe the MHD stagnation point flow of Williamson fluid over a stretching sheet is formulated and then transformed using similarity variables to boundary value ordinary differential equations. The graphs depicting the effect of thermal radiation parameter, buoyancy and electromagnetic force on the fluid velocity and temperature of the stagnation point flow are given and the results revealed that increase in buoyancy leads to an increase in the overall velocity of the flow but a decrease in the temperature of the flow.
Présence de la ϵN‐trimethyllysine dans l'iso‐1 et l'iso‐2 cytochromes c synthétisés par des souches de levure à déficience respiratoire (ϱ−)
Authors: Verdière J. , Lederer F.
Published: July 2002

It is shown that the iso‐1 and iso‐2 cytochromes c synthesized by two strains of respiratory deficient strains of yeast (ϱ−) possess one residue of ϵN‐trimethyllysine and do not differ in this respect from the iso‐cytochromes produced by ϱ+ strains. This result excludes the possibility that the methylation reaction is linked to respiratory activity or to the ϱ+ factor.
Séparation des particules ribonucléoprotéiques (Hn‐RNP) des noyaux de cellules L, en deux classes, par centrifugation isopycnique en gradients de métrizamide
Authors: Houssais Jean-François
Published: July 2002

Separation of nuclear Hn‐RNP particles into two density classes, following isopycnic centrifugation in metrizamide gradients, is reported. One class (density 1.31 g/ml) is rapidly labelled, and contains polydisperse heterogeneous high molecular weight particles, easily diffusible from intact nuclei under certain conditions. The other class (density 1.18 g/ml) is of lower molecular weight, not diffusible, and needs apparently a longer time to be labelled and/or to accumulate inside the nuclei.
Evidence that the acyl‐O‐esters are intermediates in the catalysis
Authors: McCarthy Alun D. , Grahame Hardie D.
Published: July 2002

The sequence acetyl‐CoA → acetyl‐O‐enzyme → acetyl‐S‐acyl carrier protein has for the first time been demonstrated directly with a multifunctional (mammalian) fatty acid synthase. This was achieved by blocking of the active‐site thiols of rabbit mammary fatty acid synthase with iodoacetamide. The modified enzyme was incubated with [14C]acetyl‐CoA to form acetyl‐O‐enzyme, and acetyl‐CoA was removed rapidly by centrifuge desalting. We were then able to demonstrate transfer of the acetyl group from [14C]acetyl‐O‐enzyme to the pantetheine thiol in a fragment of rabbit mammary fatty acid synthase containing the phosphopantetheine group, and to E. coli acyl carrier protein.
N‐terminal amino acid sequences of precursor and mature forms of α‐1‐antitrypsin
Authors: Gross Volker , Kaiser Clemens , Tran-Thi Thuy-Anh , Schmelzer Elmon , Witt Irene , Plummer Thomas H. , Heinrich Peter C.
Published: July 2002

α‐1‐Antitrypsin is found in hepatocytes as a high‐mannose glycoprotein (M
r 49000), extracellularly as a complex‐type glycoprotein (M
r 54000). Deglycosylation of both forms with peptide: N‐glycosidase led to proteins of identical app. M
r (41000). The sequence of 26 N‐terminal amino acids of rat α1‐antitrypsin was determined. A high content of polar amino acids was found. The partially characterized presequence of in vitro synthesized α1‐antitrypsin showed a cluster of hydrophobic amino acids. A pre‐peptide of 24 amino acids is proposed. There is no evidence for the existence of a propeptide.
Isolation and characterization of the mouse corticotropin‐β‐lipotropin precursor gene and a related pseudogene
Authors: Notake Mitsue , Tobimatsu Takamasa , Watanabe Yumiko , Takahashi Hideo , Mishina Masayoshi , Numa Shosaku
Published: July 2002

Two mouse genomic DNA sequences homologous with human corticotropin‐β‐lipotropin precursor gene sequences have been cloned. One of them represents the functional corticotropin‐β‐lipotropin precursor gene, which exhibits a structural organization similar to those of its bovine and human counterparts. The other represents a pseudogene that corresponds to the functional mouse gene sequence encoding the carboxy‐terminal 143 amino acid residues (including corticotropin and β‐lipotropin) and the 3′‐untranslated region.
Different effects of glucagon and epinephrine on the kinetic properties of liver glycogen synthase
Authors: Bosch Fàtima , Ciudad Carlos J. , Guinovart Joan J.
Published: July 2002

Kinetic constants of glygocen synthase (S
0.5 for glucose‐6‐P and M
0.5 for UDP‐glucose) were determined after hepatocytes isolated from starved rats were incubated with either glucagon or epinephrine. Incubation with these hormones resulted in an increase in both S
0.5 and M
0.5. However, the action of glucagon resulted in great modifications on S
0.5 whereas epinephrine affected mainly M
0.5. Therefore, glucagon and epinephrine alter the kinetic properties of glycogen synthase provoke the phosphorylation of glycogen synthase at different site(s) acting through different mechanisms.
Sites of cytochromeb‐563 reduction, and the mode of action of DNP‐INT and DBMIB in the chloroplast cytochromeb‐563/fcomplex
Authors: O'Keefe Daniel P.
Published: July 2002

When ferredoxin is the reductant of cytochromeb‐563 in the chloroplast cytochromeb‐563/fcomplex, the reaction rate varies with pH in a manner which permits identification of a plastoquinone/plastosemiquinone couple as an intermediate in the reaction. The requirement for the inhibitor, DNP‐INT, in this reaction, suggests that there are two sites in the complex where plastosemiquinone can react with cytochrome(s)b‐563. The ineffectiveness of DBMIB in promotion of ferredoxin‐mediated cytochromeb‐563 reduction has led to a model where DBMIB and DNP‐INT inhibit different electron transfer steps at the same, or overlapping, sites in the complex.
Solubilisation of oleoyl‐CoA thioesterase, oleoyl‐CoA: phosphatidylcholine acyltransferase and oleoyl phosphatidylcholine desaturase
Authors: Murphy Denis J. , Woodrow Ian E. , Latzko Erwin , Mukherjee Kumar D.
Published: July 2002

Membrane‐bound enzymes involved in oleate metabolism in microsomes from pea (Pisum sativum L.) leaves were solubilised using detergents, such as n‐octyl glucoside, Triton X‐100, digitonin or cholate. The detergents were found to be inhibitory to oleoyl‐CoA thioesterase, oleoyl‐CoA:phosphatidylcholine acyltransferase and oleoyl phosphatidylcholine desaturase. Detergent removal by dialysis resulted in the restoration of activity of both the solubilised oleoyl‐CoA thioesterase and oleoyl‐CoA:phosphatidylcholine acyltransferase. The putative components of the oleoyl phosphatidylcholine desaturase system were also partially solubilised.
Temperature‐induced ultraviolet absorption changes of heavy meromyosin
Authors: Yamada Takenori , Tachibana Hideki , Nishimura Yoshiko , Shimizu Hiroshi , Wada Akiyoshi
Published: July 2002

The UV absorption of HMM (heavy meromyosin) was measured at various temperatures with a computerized spectrophotometer system. HMM showed temperature‐induced absorption changes in the presence and absence of nucleotides. The temperature‐induced absorption change at 293 nm, which is due to conformational changes around the tryptophan residues of HMM, was enhanced in the presence of nucleotides. The temperature‐induced difference spectra of HMM + AMPPNP relative to HMM obtained by using a conventional spectrophotometer [(1977) J. Biochem. (Tokyo) 81, 313–320] could be reproduced by subtracting the temperature‐induced spectral changes of HMM from those of HMM + AMPPNP.
The inhibitor ribonucleoprotein of poly(A)‐containing non‐polysomal messenger ribonucleoprotein of A. salina cryptobiotic embryos
Authors: Piot Etienne , Backhovens Hubert , Slegers Herman
Published: July 2002

The inhibitor is a ribonucleoprotein sedimenting at 5–6 S with a M
r, of ~ 84 000 ± 6000. The particle is composed of a protein with M
r of 64 000 and an RNA with a length of 85 ± 2 nucleotides and is a very potent inhibitor of the translation of mRNA. The inhibition is a property of the RNA but the inhibitor ribonucleoprotein is more efficient in the inhibition of poly(A) containing mRNA than its extracted RNA.
Different reactivity of carboxylic groups of cytochrome c oxidase polypeptides from pig liver and heart
Authors: Kadenbach Bernhard , Stroh Annemarie
Published: July 2002

Cytochrome c oxidase isozyme
Cytochrome c binding domain
1‐Ethyl‐3‐(3‐dimethylaminopropyl)carbodiimide
Tissue specificity
On the logic of the application of double‐inhibitor titrations for the elucidation of the mechanisms of energy coupling
Authors: O'Shea Paul S. , Thelen Marcus
Published: July 2002

In the last couple of years the chemiosmotic hypothesis has been severely criticised, such that many research groups now consider it to be a less than exact description of biological energy transduction. The most potent experimental support for this view is based upon the technique known as the double‐inhibitor titration [e.g., (1982) Biochem. J. 206, 351‐357]. The results of such experiments have been considered by many to exclude ‘unequivocally’ the chemiosmotic coupling model. It will be shown that such unequivocal statements are not possible. An argument is put forward which shows how the chemiosmotic model may explain these titrations without any further elaborations of the original hypothesis.
A free‐radical intermediate in the reduction of plant Cu‐amine oxidases
Authors: Finazzi-Agro Alessandro , Rinaldi Augusto , Floris Giovanni , Rotilio Giuseppe
Published: July 2002

The reaction with substrate of plant amine oxidases from either Euphorbia latex or lentil seedlings in the presence of cyanide led to the appearance of a free‐radical type of ESR spectrum with well‐resolved hyperfine structure, which is very likely due to coupling with various protons over an aromatic ring. It was established that the free‐radical spectrum was not derived from the substrate, since either aromatic or aliphatic substrates gave rise to identical spectra. The presence of copper is essential to the appearance of the freeradical ESR signal.
Two Km values for cytochrome c of aa3‐type two‐subunit cytochrome c oxidase from Nitrobacter agilis
Authors: Fukumori Yoshihiro , Yamanaka Tateo
Published: July 2002

Oxidation of ferrocytochrome c by aa
3‐type two‐subunit cytochrome c oxidase from Nitrobacter agilis was measured polarographically and the results obtained were analyzed by means of Eadie‐Hofstee plots. Two apparent K
m values of ∼3.0 × 10−8 and 2.0 × 10−6 M were obtained for horse cytochrome c in 25 mM phosphate buffer, pH 6.5. Also when N. agilis ferrocytochrome c was oxidized by the enzyme in 25 mM phosphate buffer (pH 6.5), two apparent K
m values of ∼2.0 × 10−8 and 4.0 × 10−6 M were obtained although the break point in the Eadie‐Hofstee plot was as clear as in the case of horse cytochrome c. The results show that two reactive sites for cytochrome c also occur in the bacterial cytochrome c oxidase composed of two subunits and will give further support to the idea that only the larger two subunits of eukaryotic cytochrome c oxidase are responsible for oxidation of ferrocytochrome c.
Comparison of the modes of action of Ca2+ ionophore A23187 and thrombin in protein kinase C activation in human platelets
Authors: Sano Kimihiko , Nakamura Hajime , Matsuo Tamotsu , Kawahara Yasuhiro , Fukuzaki Hisashi , Kaibuchi Kozo , Takai Yoshimi
Published: July 2002

In human platelets, the Ca2+ ionophore A23187 stimulated the phosphorylation of a 40 kDa protein and myosin light chain (MLC) to the same extents as those induced by thrombin, but the doses of A23187 for 40 kDa protein phosphorylation were higher than those for MLC phosphorylation, although the doses of thrombin for both reactions were nearly the same. Moreover, A23187 produced much less diacylglycerol than thrombin. However, the sites of the 40 kDa protein phosphorylated by the action of A23187 and thrombin were identical, and the 40 kDa protein phosphorylation induced by A23187 and thrombin was inhibited by tetracaine, an inhibitor for protein kinase C. Neither A23187 nor thrombin induced the production of a catalytic fragment of protein kinase C which might be generated by limited proteolysis with Ca2+‐dependent protease. These results indicate that A23187 induces protein kinase C activation which phosphorylates the 40 kDa protein, but higher doses of A23187 are required for the activation of this enzyme than for the activation of MLC kinase.
A thermodynamic analysis of the plasma membrane electron transport components in photoheterotrophically grown cells of Chloroflexus aurantiacus
Authors: Zannoni Davide , Ingledew W.John
Published: July 2002

The thermodynamic and spectroscopic properties of the membrane bound iron‐sulphur centers and cytochromes in phototrophically grown cells of the thermophilic facultative photosynthetic green bacterium Chloroftexus aurantiacus have been examined. The present study shows that Chloroflexus contains several cytochromes of b and c type, along with multiple ferredoxin‐like centers with resonances centered at g = 1.93, g = 2.017 (HiPIP‐like center) and g = 1.90 (Rieske‐type protein). The g = 1.90 centre appears to be actively involved in photooxidative reactions. These observations suggest the presence of a previously undetected cytochrome complex in this bacterium.
The presence and orientation of ecto‐5'‐nucleotidase in rat liver lysosomes
Authors: Maguire Gerald A. , Luzio J.Paul
Published: July 2002

Purified rat liver lysosomes contained 5'‐nucleotidase activity which was 92 ± 2% [4] latent. This latency was lost in response to a permeant sugar at a similar rate to that of the lysosomal marker enzyme β‐N‐acetyl‐glucosaminidase indicating that the 5'‐nucleotidase was genuinely located in the lysosome and not a plasma membrane contaminant. Lysosomal 5'‐nucleotidase exhibited the following properties characteristic of ecto‐5'‐nucleotidase inhibition by specific polyclonal antibodies: binding to a monoclonal antibody; inhibition by 1 αβ‐methylene ADP; immunoreactive subunits of 70 and 38 kDa. Lysosomes in addition contained immunoreactive species of intermediate molecular mass.
Superoxide generation by either 1‐oleoyl‐2‐acetylglycerol or A23187 in human neutrophils is enhanced by indomethacin
Authors: Dale M.Maureen , Penfield Adrienne
Published: July 2002

Indomethacin at a concentration (1O−4 M) which depressed the effect on O2
− generation by fMet‐Leu‐Phe, markedly enhanced O2
−, generation by both 1‐oleoyl‐2‐acetylglycerol and the calcium ionophore, A23187. These results are explicable in terms of the hypothesis that synergism between cytosolic calcium and protein kinase C is involved in signal transduction for the respiratory burst in the human neutrophil.