bluuebunny/crossref_metadata_2025_split huggingface dataset:
VALIDATION OF LEAD (Pb) ANALYSIS METHOD IN FISH MEAL MATRIX BY ELECTROTHERMAL ATOMIC ABSORPTION SPECTROPHOTOMETRY
Authors: Suwari  , Ledoh Sherlly M.F. , Rozari Philiphi de 
Published: September 2021

ABSTRACT
Validation of analytical methods is the process of proving that the methods used are scientifically good and suitable for certain purposes. The aim of this study was to validate the analytical method of lead in fish meal matrix by electrothermal atomic absorption spectroscopy (ETAAS) using a phosphate modifier. The research begins with optimization of the analytical conditions that include pyrolysis (ashing) and atomizing temperature, and continues with the validation process by evaluating the analytical performance parameters using a certified reference material (CRM). Method validation was carried out by determining the level of accuracy and precision as well as lead content in a CRM Cod Muscle-422 from BCR. Each experiment was conducted at a wavelength of 283.3 nm, a lamp current of 9.0 amperes, a slit width of 1.3 nm and an argon carrier gas. The optimal pyrolysis and atomizing temperature of lead obtained by adding phosphate modifier was 650 oC and 2000 oC, respectively. The results obtained in this study indicate that the ETAAS lead analysis method using a phosphate modifier is feasible as a test method with an RSD of 3.79%, precision of 0.0043, relative error of 4.0%, accuracy of 104% and recovery of 98% ± 3%. The results of the validation method obtained that the 95% confidence interval for Pb content was 0.088 ± 0.023 µg/g, still within the range of Pb levels in the certificate, namely 0.085 ± 0.015 µg/g of Pb.
Keywords: Validation, CRM, Cod Muscle, ETAAS, Lead
Algunos documentos del virrey La Serna
Authors: Valcárcel Carlos Daniel 
Published: September 2021

El Cusco fué paradójicamente la última Capital del Virreinato del Perú. Luego del Virrey don José de la Serna e Hinojosa, vino el nominal, inefectivo y fugacísimo mandato de don Pío Tristán, como el colofón de una época ya concluida.La historia del Perú, después del pronunciamiento de Aznapuquio y la deposición de Pezuela, ha sido estudiada de preferencia en lo que concierne a las actividades de los patriotas y ai auxilio sudamericano recibido.
El primer vocabulario quechua
Authors: Porras Barrenechea Raúl 
Published: September 2021

El primer carácter que observaron los españoles en relación con el lenguaje peruano primitivo fué el de una gran variedad o diversidad dentro de una tendencia unificadora. Se notaba, de pueblo a pueblo, o mas bien de valle a valle, saltantes diferencias lingüísticas, pero fáciles de ser superadas por un parentesco etimológico y la analogía de la estructura gramatical.
Paracas Cavernas and Chavin
Authors: Kroeber Alfred L. 
Published: September 2021

El Prof. Kroeber analiza en este trabajo sus discrepancias con Willey, con quien concuerda en que lo conocido del material de Cavernas no es total o estrictamente de estilo chavín, y con quien discrepa al concedersignificación a ese pequeño margen de ingrediente chavín, que Willey estima despreciable, dudoso y debatible.Kroeber examina también otro problema relacionado con la cuestión ant rior: Si la mayoría de los ingredientes de la cultura de Cavernas no es chavín, ¿cuáles son sus conexiones estilísticas?. En seguida, el autor pasa al análisis de las relaciones con Ocucaje, Necrópolis de Paracas y la cultura de Nazca. Compara las formas yrasgos generales de todo el material denominado chavinoide llamando la atención hacia la distinción de las características locales, como el gollete en forma de estribo, que no aparece sino en el Norte, y las características que él llama universales o comunes a todos los sitios chavín. Kroeber cree que, al presente no se puede dudar de que el nacimiento del estilo chavín se ha originado en el norte del Perú y que paso después a Supe y Ancón, donde degeneró algo. Y que cuando llego a Pisco e lea se revigorizó con la adición de otros rasgos: aquí se originaron entonces el estilo de la Necrópolis y el de Nazca.
Analysis of Influence of Number of Station Stops on Punctuality of Passenger and Suburban Trains
Authors: Mekhedova E. A. 
Published: September 2021

One of the main tasks of railway employees is to ensure 100 % punctuality of passenger and suburban trains. However, this is impossible due to the action of various reasons, comprising actual reliability of technical equipment and vehicles, natural and other factors. Various companies have different standards and practices of setting and monitoring relevant indicators.The objective of the study was to find out the degree of influence of the e factor formulated as «the number of station stops on the route» on the rate of punctuality of passenger and suburban trains.Calculations and approbation of the suggested model were performed using the example of the JSC Russian Railways.Russian Railways standardise punctuality indicators based on the past performance principle. This does not guarantee that the objective conditions for organising operational work on various railways are fully considered. Besides, it is suggested to consider as main conditions: the level of the use of transit capacity, the technical condition of the infrastructure and rolling stock, etc. However, the factor of the number of station stops of passenger or suburban trains en route envisaged by the traffic schedule is not considered. The greater is the number of station stops, the greater impact, in the absence of a possibility to recover the delay and catch up the traffic schedule, this factor has on the level of traffic punctuality. In turn, the chance to get back on traffic schedule in passenger long distance traffic is higher than in suburban traffic with short routes.The number of station stops varies significantly across the railways, which indicates the unequal conditions of their operation according to this factor.The numerical value of the e factor, as well as of the values of the share of delayed trains (calculated separately for passenger and suburban trains) were determined: by delay in departure – ádep; by delay in arrival at intermediate points of the route – áint; by delay in arrival at the destination – áar. Based on these data, parameters have been established that have allowed to determine the relationship between the number of station stops (e) and the change in the share of delayed trains. Using the methods of mathematical statistics, the insignificant influence of the e parameter on the values of ádep, áint and áar has been established. It is shown that the punctuality of passenger and suburban trains is significantly influenced by the traffic conditions after departure from the initial station and especially by the possibility to come back on the traffic schedule after possible delays along the route. In this case, one should consider the combined organisation of passenger and freight traffic on most lines of the considered network. It is proposed to optimise the number of standardised indicators in view of their reduction.
International Transportation of Heavy and Oversized Cargo: Example of Haulage of Components of Wind Power Plant
Authors: Pashkova T. N. , Filippova N. A. , Pozdnyak A. N. 
Published: September 2021

Heavy and oversized transportation requires solving a whole range of tasks, such as choosing a suitable method of customs clearance and of a customs post, determining the optimal route, correctly selecting vehicles, ensuring safety of related infrastructure, and road traffic, such as the width of the carriageway, height and width of bridges, tunnels, power lines, ordering permits for travel on certain road segments, ordering heavy and oversized cargo escorting service, providing the special labour regime and working conditions for drivers.The objective of the study was to provide options for solving the listed issues and offer choice of best modes of transport, routes of delivery of heavy and oversized cargo.This article based on the example of multimodal supply of components of wind power plant through the Russian national and foreign territory analyses issues of choosing a mode of transport for multimodal transportation of heavy and oversized cargo; of individuality of routes for movement of goods with non-standard weight and size characteristics; of developing a survey route, and of preliminary preparing transportation of heavy and oversized cargo. Identification of difficulties faced by participants in similar projects, helped to reveal preliminary solutions which might increase the efficiency of any individual transportation. Described features of transportation of this kind of cargo in Russia focused particularly on customs regulations governing crossing of the border of the Russian Federation by multicomponent goods. Since about 70 % of total «door-to-door» transportation, comprising haulage of heavy and oversized cargo, are performed by road transport, the article highlights the road transportation segment.The conclusion suggests that the main task when developing a route is to ensure safety of cargo transportation. The identified phases comprise choosing and calculating the route, the coordination of obtaining permits for transportation of heavy and oversized cargo with various organisations on different segments of the route. Solutions for import customs clearance of multicomponent disassembled cargo, particularly in case of non-simultaneous delivery, are examined.
Experience of Using Online Technologies in Transport Education
Authors: Smyk A. F. , Tkacheva T. M. , Timofeeva G. Yu. 
Published: September 2021

The objective of this article is to identify pedagogical technologies traditionally used in full-time education, which found their place when educational formats changed in the era of digital transformation. The discussion concerns the project method, the case method, the analysis of the digital footprint, the use of game teaching methods, virtual laboratory work, various types of Internet testing, methods of collective search for a solution to the problem. The application of the considered methods in learning the Physics as a discipline at Moscow Automobile and Road Construction State Technical University (MADI) constituted the empirical basis of the study.The design method turned to be the most effective and developed one. Its application made it possible to organise participation of students of 1–2 years of study in educational and research work under the guidance of lecturers who are related to physics and the chosen fields of training at MADI. It is shown that as a result, students acquire the skills to search and select the necessary information, learn to complete project work on time, prepare presentations, write scientific texts both for presenting them as oral reports and as texts of scientific articles. Possibilities of using electronic registers are described, in which both attendance at classes and performance of tasks are recorded, and the time factor (indication on whether the work was completed on time or was late) is considered. The article studies the use of a point-rating system to control current assignments, and also provides description of developments by the teaching staff of the department on organisation of an oral exam and test in physics in an online format.
SUSTAINABLE LAKE/SITU MANAGEMENT
Authors: Pambudi Andi Setyo 
Published: September 2021

The increasingly advanced developmentnin the city of Bogor has an impact on the carrying capacity of the environment. One that is rarely in the spotlight is about the decreasing number of lakes in Bogor. In urb an areas such as Bogor City, local people refer to the lakes as situ or setu. The existence of these “Situ”
affects the water system, both in this city and in the surrounding areas. Although “Situ” play a vital role in maintaining the balance of urban water systems, they have not received sufficient attention in the planning documents for the City of Bogor, both annual and medium-term documents. The rapid development of the city affects thequantity and quality of urban lake water in the city of Bogor. These “Situ continue to experience physical and ecological degradation which increases the threat to the health of the population of the city of Bogor. This situation shows that the site has not been managed and functioningnproperly. Human and natural disturbances such as encroachment, garbage disposal, and untreated waste have polluted “Situ” water and reduced its volume capacity. Most of the lakes in the city of Bogor experience disturbances in damaged environmental conditions. This paper seeks to examine th e condition of the “Situ” in Bogor City and its problems based on literature studies from previous researchers. The results of the research will provide recommendations based on scientific theories and existing regulations, both national regional regulations and regional regulations in Bogor City
THE POTENTIAL INHIBITION OF XANTHINE OXIDASE BY PHENOLIC AND FLAVONOIDS DATE (Phoenix dactylifera) WITH MOLECULAR DOCKING METHOD
Authors: Hasan Akhmad Endang Zainal , Ambarsari Laksmi , Hariana Karichsa 
Published: September 2021

Dates is fruit of palm trees that mostly grow in the Middle East. Dates contain phenolic acids and flavonoids that have antioxidants and potentially inhibit the ability of xanthine oxidase. The purpose of this research to determine the molecular interactions of xanthine oxidase by ligand of phenolic acids and flavonoids to inhibiting the production of uric acid. This research was conducted by site directed docking method. The size of the center of retardation used in this research is x = 26.569, y = 9.985, and z = 113.088 and the retardation volume of x = 14, y = 14, and z = 16. Inhibition by flavonoid and phenolic acid compounds has produces good inhibition strength shown by Gibbs free energy which is negative. The compound with the highest Gibbs free energy value is the anthocyanins compound which is -7.3 kCal / mol, the value is higher than the comparator ligand, allopurinol. Based on the bond analysis that is formed, the best compound in inhibiting xanthine oxidase is syringic acid.
ACADEMIC RETENTION, RESEARCH CAPACITY, AND SUSTAINABLE DEVELOPMENT IN AFRICAN UNIVERSITIES
Authors: Rufai Saheed , Olatunji Hafsah , Musa Bello 
Published: September 2021

There is a shift of interest towards the current pace of development in Africa especially with regard to science and technology. The rate at which advancements are being recorded in this and other sectors has not been encouraging, as evident from official records. Scholars and researchers in various disciplines have correlated development to education and identified close associations between the level of performance of any citizenry or manpower, and the quality of its education. Accordingly, the quality of life and experience on the African continent has, to an appreciable extent, been characterised as the output variable and the quality of education including that of the teachers, as the input variable. The antecedent variable, too, which in this context is the totality of experience that informs educational directions in Africa, is arguably a product of the input variable. Consequently, the tertiary educational level especially the university system, unlike both the primary and the secondary, may be more strongly associated with the quality of performance. This may be explained through the dominant thinking that the tertiary system is primarily concerned with the production of manpower for various sectors. While there is evidence of research into this question, there is insufficient evidence of research into the interplay of the academic retention system and research capacity development orientation in African universities. This paper is an attempt to investigate that hitherto underrepresented dimension. The study employs a combination of the historical method and analytic philosophy. Its significance lies in its potential to expose, with evidence, the association between the dominant academic retention system and research capacity development orientation in African universities, as well as the implication of such an association for sustainable development in Africa. The study ultimately offers an ameliorative proposal for revitalizing an outcome-oriented research capacity development system in African universities.
Pelatihan Cara Penyusunan Alat Evaluasi Belajar Siswa Sekolah Dasar Secara Daring pada Era New Normal
Authors: Aprinawati Iis , Sumianto Sumianto , Mufarizuddin Mufarizuddin 
Published: September 2021

Kegiatan Pengabdian Kepada Masyarakat ini bertujuan untuk 1) memberi pelatihan cara penyususnan alat evaluasi belajar siswa secara daring, 2) mengetahui respon guru cara penyususnan alat evaluasi belajar siswa secara daring. Bimbingan kelompok pada guru akan membuat guru mudah penyusunan evaluasi belajar bagi siswa, membangun kedekatan, memahami anak dan mudah dalam memberikan tes yang dberikan secara daring Metode kegiatan pengabdian masyarakat ini menggunakan metode ceramah, demontrasi, metode tanya jawab dan melakukan praktik bimbingan kepada pelaksana pendidikan.
TATA KELOLA LINGKUNGAN LAHAN BASAH DI BANJARMASIN DAN TATA KELOLA MIGITASI BANJIR DI SAMARINDA
Authors: faizah andi 
Published: September 2021

Melakukan kajian implementasi model kerjasama sister city di Kota Banjarmasin Dengan menghubungi beberapa pihak yang berkepentingan, seperti Pemkot Banjarmasin dan masyarakat sebagai anggota masyarakat Peserta dalam implementasi kota kembar dan survei lapangan dari area penggunaan yang dimaksudkan Mengembangkan kerjasama sister city di Banjarmasin. Globalisasi dan revolusi informasi telah mempengaruhi distribusi kekuasaan di dalamnegara-bangsa. Perubahan signifikan ini telah menyebabkan sentralisasi masalah sosial dikelola oleh pemerintah pusat semakin berkurang seiring dengan meningkatnya kebutuhan untuk menyelesaikan masalah-masalah sosial mandiri selama ini bagi pemerintah daerah. Perubahan global akibat globalisasi menyebabkan terjadinya pergeseran dalam penyelenggaraan negara dan hubungan pemerintah.
KARAKTERISTIK BRIKET DENGAN PENCAMPURAN KULIT BATANG SAGU DAN TEMPURUNG KELAPA
Authors: Afna Afna , Pato Usman , Hamzah Farida Hanum 
Published: September 2021

Kulit batang sagu dan tempurung kelapa mengandung senyawa lignin dan selulosa yang cukup tinggi dan belum dimanfaatkan secara optimal. Penelitian ini bertujuan untuk mendapatkan formulasi terbaik pencampuran kulit batang sagu dan tempurung kelapa dalam pembuatan briket. Penelitian dilakukan secara eksperimen menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 ulangan. Perlakuan dalam penelitian ini P1 (arang kulit sagu dan arang tempurung kelapa 90:10), P2 (arang kulit sagu dan arang tempurung kelapa 80:20), P3 (arang kulit sagu dan arang tempurung kelapa 70:30), P4 (arang kulit sagu dan arang tempurung kelapa 60:40), P5 ( arang kulit sagu dan arang tempurung kelapa 50:50). Data yang diperoleh dianalisis secara statik dengan analysis of variance (ANOVA) dan dilanjutkan dengan New Multiple Range Test (DNMRT) Duncan pada taraf 5%. Hasil penelitian ini menunjukkan bahwa rasio kulit batang sagu dan tempurung kelapa berpengaruh nyata terhadap kadar air, kadar abu, kadar zat mengguap, kerapatan, kadar karbon terikat, nilai kalor dan daya bahan bakar. Perlakuan terbaik pada penelitian ini adalah P5 (arang kulit kayu sagu dan arang tempurung kelapa 50:50) kadar air 3,67%, daya abu 4,54%, kadar zat mengguap 1,13%, daya bakar 0,67 g / cm3, karbon terikat 90,68%, nilai kalori 7748,61 kal/g dan daya bahan bakar 0,0029 g/detik.
Elaborare il trauma
Authors: Kazartseva Vera 
Published: September 2021

In the article the author analyses the transition from poem in verses to "poem in prose" in Franca Mancinelli’s works. This stylistic choice was defined by the ability of the poem in prose to represent trauma. The article contains the results of an analysis of Libretto di transito from the point of view of post-traumatic memory.

Nel presente articolo è analizzato il passaggio dalla poesia divisa in versi alla poesia in prosa nella lirica di Franca Mancinelli. Questa scelta stilistica è stata definita anche dal potere del genere ibrido della poesia in prosa di rappresentare il trauma. L’articolo riassume i risultati dell’analisi di Libretto di transito dal punto di vista della memoria post-traumatica.
Obliterarsi
Authors: Caponi Mattia 
Published: September 2021

Abstract ita:
L’articolo tenta di analizzare i primi tre libri di Franca Mancinelli, cercandone le continuità tematiche e l’unità profonda. Attraversando le raccolte in ordine cronologico, l’articolo privilegia la lettura dei temi al fine di scoprire le connessioni intertestuali all’interno dei singoli volumi o da uno di essi agli altri. Ciò permette di cercare quindi le strutture e le dinamiche strutturanti di un «libro di poesia» mancinelliano, ponendo attenzione alle dichiarazioni di poetica dell’autrice e studiando le varianti dei microtesti, volendo arrivare ad una definizione delle intenzioni con cui la poetessa produce nuove versioni delle sue poesie e delle sue prose liriche. La riscrittura trova una giustificazione dal lato stilistico, dal lato strutturale e dal lato tematico, scoprendo una tendenza nella scrittura di Franca Mancinelli.

Abstract eng:
The paper tries to describe the continuity in Franca Mancinelli’s poetry books, studying the chronological progress of themes and its way of forming intertextual connections in each book or between one another. The connections’ study has the purpose to show the singular structure of each books. By looking at the structures, it can be detected Mancinelli’s method of building a structure and a poetry book. This leads to discover the variations in texts and to the study of the last versions of them. The paper aims also to define the form of self rewriting in Mancinelli’s recent books by analysing those variants in texts. The process of rewriting founds his explanation in themes’, style’s and structure’s analysis, showing a trend in the poet’s style.