bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of prostate cancer-derived extracellular vesicles in urine using IR spectroscopy
Authors: Yap Xin-Le , Ong Teng-Aik , Lim Jasmine , Wood Bayden , Lee Wai-Leng
Published: March 2020

Prostate cancer (PCa) is the third most frequent cancer in men and prostate-specific antigen is currently the biomarker used despite its low specificity. Lately, extracellular vesicles (EVs) which are secreted by all types of cells have raised research interest for their association with cancer progression. Urinary EVs UEVs) has emerged as a potential biomarker for PCa detection as it is non-invasive and urine samples are easily obtained from patients. Therefore, we hypothesize that PCa cells secrete EVs containing a unique set of biomolecules which can be exploited as a signature profile of the cancer. In this study, Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) spectroscopy was used for analysis of the UEVs aiming to obtain a signature spectrum for early detection of PCa. Urine samples from PCa and healthy subjects were subjected to ultracentrifugation for isolation of UEVs. Principal Component Analysis (PCA) indicated that FTIR spectra of the UEVs of PCa patients are distinct from those of healthy individuals at the following wavenumber values: amide I peak (1640 cm-1), RNA ribose peak (1120 cm-1), C-C, C-N stretch peak (967 cm-1) and C4–C5/C=N, imidazole ring peak (1610 cm-1). The obtained IR spectra were also analyzed using Linear Discriminant Analysis (LDA) and the resulting diagnostic classifier for PCa achieved a sensitivity of 83.33% and a specificity of 60%. In conclusion, ATR-FTIR analysis of UEVs in combine with PCA-LDA statistic model described in this study may offer a novel strategy for the development of a non-invasive urine test for early screening of prostate cancer.
Urban Planner: model for optimal land use scenario modelling
Authors: Burian Jaroslav , Šťastný Stanislav , Brus Jan , Pechanec Vilém , Voženílek Vít
Published: March 2020

This paper describes a new approach to automatic optimal land use scenario modelling using the developed ArcGIS “Urban Planner” extension. The first part of the paper addresses the implementation of geoinformatic technologies in spatial planning. The study presents several models and approaches, which focus mainly on the evaluation of land suitability, spatial modelling, and the possibilities of their use in urban planning. The main part of the paper describes the theoretical basis of the model, which is built on a weighted raster overlay. This study also elaborately analyses the functionality of the extension, which lies in the assessment of land suitability and the detection of optimal areas suitable for urban development. The paper also offers some testing of the model, specifically its robustness and sensitivity in the Olomouc region and its possible use for the creation of development scenarios.
Influence of the river floodplain on the regime of the upper Lužnice River
Authors: Svoboda Pavel , Šobr Miroslav , Janský Bohumír , Vlasák Tomáš
Published: March 2020

The aim of this study is an evaluation of the hydrological regime of the upper part of the Lužnice River basin with respect to anthropogenic modifications. The Lužnice River is located in the south of Czechia. A larger part of the river exhibits a low intensity of modification - meandering stream with many pools and oxbow lakes in the floodplain where a safe retention of water during the flood event remains possible. The main part of the study concentrates on the hydrological regime. The methodology is based on statistical evaluation of a long-time data series from the Pilař water gauging station. Flood events and dry periods were analysed during the past 46 years. Discharge measurements (conducted by the Faculty of Science, Department of Physical Geography and Geoecology) are used for recent flood evaluations.
Ukrainian migration in the EU: A comparative analysis of migration and remittance behaviour
Authors: Strielkowski Wadim , Hluštíková Kateřina , Malynovska Olena , Horváthová Zuzana
Published: March 2020

From the perspective of international migration, Ukraine represents a particularly interesting case because it is a country of emigration, immigration and transit migration; wherefore the movement of people occurs in all directions. Moreover, the country faces serious economic problems that are fuelled by political instability within the country. Nowadays, Ukraine is a country with fifth largest emigration in the world with the largest representation of emigrants in Czechia. This paper examines the remittance behaviour of Ukrainian labour migrants. We attempt to test the theory of dwindling remittances on the data on Ukrainian migration in seven European Union countries and to determine whether the time spent away from home actually has a negative effect of remittances. We use data from a recent project called MIRPAL (Migration and Remittance Peer Assisted Learnings) conducted by Ukrainian researchers in cooperation with the World Bank which maps in detail the economic and social situation of Ukrainian migrants in European Union.
How to Support Students in Selecting Graded Readers
Authors: Barr Amber , Lyon Phoebe
Published: March 2020

Learner autonomy, and giving students the ability to select their own learning materials as a way to encourage them to take charge of their own learning, is now a major focus in education (Ellis & Sinclair, 1989). However, students may not always feel confident making selections that were once made by their classroom teachers. The authors analyzed data from student surveys to determine possible factors that contribute to and influence students’ graded reader selections. Results indicate that although some learners are able to make selections that meet their expectations, there are almost as many who are struggling to do so. In this report, the authors’ aim is to offer suggestions as to how learners can be assisted to improve success in graded reader selection.
Learning Japanese: Voices of Experience by Belinda Kennett and Yuriko Nagata
Authors: Lin Michael
Published: March 2020

Learning Japanese: Voices of Experience, written and edited by Belinda Kennett and Yuriko Nagata, published by Candlin & Mynard ePublishing, is an e-book specially designed for students and teachers of the Japanese language. By utilizing the power of narrative and open sharing to inspire its readers, the book offers many helpful ideas and suggestions on how one can improve their Japanese proficiency. With their wide array of backgrounds and experiences, contributing authors share genuinely about their joys, struggles, and victories. The book is excellent not only for Japanese learners but Japanese teachers as well, because the collected stories demonstrate the importance of social factors in furthering a student’s language learning. They also serve as a poignant reminder of the need to pedagogically and strategically address student apprehension of language learning. Particularly insightful is the book’s emphasis on how students can always make tangible progress no matter one’s background or proficiency level.
Haus im Prozess: Story-stories der Gegenwart und Glenn Pattersons : Roman ,,Number 5“
Authors: Klappert Annina
Published: March 2020

Der Beitrag nimmt Romane der Gegenwart in den Blick, in denen die Geschichte eines Hauses erzählt wird, wie sie sich in Wechselwirkung mit den Geschichten der sukzessive in ihm wohnenden Menschen entwickelt. Nach einer kurzen Skizze entsprechender Romane werden architekturtheoretische
Ansätze vorgestellt, die Häuser als prozessual konzeptualisieren. Sodann wird Glenn Pattersons Roman Number 5 als literarische Reflexion dieses Konzepts gelesen: als Geschichte eines Hauses im Prozess.
,,This then is a possible house / This then is a possible Novel.“ : Das Architekturbuch zwischen Entwurf und Aneignung
Authors: Noell Matthias
Published: March 2020

Ein Haus ist zunächst einmal ein architektonischer Gegenstand zum Wohnen. Manchmal aber sind Wohnhäuser zugleich auch Manifeste des Bauens und Wohnens, die in Monographien publiziert werden, um aus einer persönlichen eine allgemeingültige architekturtheoretische
Haltung zu formulieren. Denn aufgrund der Privatheit eines Wohnhauses sind diese nur in den seltensten Fällen anders als in einer medialen Übertragung sichtbar. Der Beitrag nimmt die Intentionen und Strategien dieser Buchgattung in den Fokus und untersucht die konträren Aspekte
von Funktion und Ästhetik, architektonischer Entwurfssystematik und Bewohnerwünschen.
Improving High-dimensional Simulation-driven Optimization
Authors: Tenne Yoel
Published: March 2020

Computer simulations are being extensively used as a partial substitute for real-world experiments. Such simulations are often computationally intensive and hence metamodels are used to approximate them and to yield estimated output values more economically. While this setup can work well in low dimensional problems it can struggle in high-dimensional ones due to poor metamodel prediction accuracy. As such this study examines the application of dimensionality-reduction procedures during the search so that a simplified problems is formulated which is easier to solve and which could yield a better solution of the original one. An extensive performance analysis with both mathematical test functions and an engineering application shows the effectiveness of the proposed approach.
Phenomenology as the Methodology of Historical Poetics
Authors: Yudkin Ihor
Published: March 2020

Phenomenology as the method of displaying essence behind the outer outlook of the observed phenomena gains wide use within various realms of knowledge. It has become the basis for diagnostics and the study of phylogenies within biology. Its various aspects are applied in different branches of humanities, meanwhile, it lacks its approach towards the history of culture. The definition of phenomena and epiphenomena as the prerequisite for mental experiments can exemplify its effectiveness for the historical researches. The phenomenological principle of subjective activity makes it possible to develop the doctrine of intentional reflection as the instrument for disclosing targets in the situations of conflicts. The concept of eidetic reduction and the evaluation of a priori experience turn to become effective for the study of historical consciousness. The intuitionist logics aims at the presentation of proper names conforming to the peculiarities of unique and irreproducible historic events. The distance of historical objects can be conceived on the basis of cycled constructions as the instrument of eidetic logics. The concept of inter-subjective relations generalizes that of communication as the condition of existence of ideal objects. Phenomenological models have proved to become effective to explain such peculiarities of stylistic development as the permanence of traditions together with their revival and transformation. There arises the principle of mutuality of synchronic and diachronic aspects of text together with the formation of the concept of history as text. Theatrical interpretation becomes the model of a mental experiment in history.
ОПТИКО-ЕЛЕКТРОННИЙ МЕТОД ВИЗНАЧЕННЯ ТРАНСПОРТНОЇ ЗАТРИМКИ В СИСТЕМІ КЕРУВАННЯ ТРЕНАЖЕРА
Authors: Andrienko O. , Huchenko M. , Zinchenko V. , Tupikov C. , Сushpil А.
Published: March 2020

Вказується на наявність проблеми вимірювання т.зв. транспортної затримки керувальних впливів при валідаційних випробуваннях льотних тренажерів за міжнародними стандартами. Аналізуються недоліки стандартного методу вимірювання транспортної затримки. Пропонується і описується альтернативний метод.
МЕТОДИЧНИЙ ПІДХІД ЩОДО ВИЗНАЧЕННЯ ВЕЛИЧИНИ ЗБИТКУ ВІЙСЬКАМ ПРОТИВНИКА ШТУРМОВОЮ АВІАЦІЄЮ З УРАХУВАННЯМ ЕФЕКТИВНОСТІ ЗАСТОСУВАННЯ АВІАЦІЙНИХ ЗАСОБІВ УРАЖЕННЯ
Authors: Bashynskyi V. , Televnyi I. , Nikitcnenko V.
Published: March 2020

У статті запропоновано методичний підхід щодо визначення величини збитку військам (об’єктам) противника, що прикриваються угрупуваннями військ протиповітряної оборони, штурмовою авіацією з урахуванням ефективності авіаційних засобів ураження та методичний підхід для ефективного дослідження стохастичних властивостей застосування авіаційних засобів ураження по наземним цілям. Проведено аналіз наземних типових цілей та визначено, що переважна більшість цілей являють собою розосереджені на деякій площі об’єкти. Визначено основні калібри, які застосовуються штурмовою авіацією для нанесення збитку об’єктам противника. Підтверджено, що найбільш повним показником оцінки ефективності нанесення збитку наземним об’єктам, що прикриваються угрупуваннями військ протиповітряної оборони, авіацією, можна вважати математичне очікування величини збитку нанесеного авіацією об’єктам і враховує головні завдання авіації по знищенню об’єктів, ефективність застосування авіаційних засобів ураження штурмовою авіацією та важливість даних об’єктів.
ЗАХИСТ СУЧАСНИХ ВІТЧИЗНЯНИХ ТАНКІВ: ПОТОЧНИЙ СТАН, МОЖЛИВІ НАПРЯМИ РОЗВИТКУ
Authors: Moskalets S. , Zhyrnyi V. , Tsilyna S. , Kuzin S. , Zhyvets Y.
Published: March 2020

У даній статті висвітлені питання щодо можливості та методів захисту танків та іншої бронетехніки, а також напрямки роботи з його удосконалення.
ВИКОРИСТАННЯ РАДАРНОЇ СИСТЕМИ MFTR-2100/40 ДЛЯ ВИЗНАЧЕННЯ БАЛІСТИЧНИХ ХАРАКТЕРИСТИК АРТИЛЕРІЙСЬКИХ СНАРЯДІВ ТА СКЛАДАННЯ ТАБЛИЦЬ СТРІЛЬБИ
Authors: Reshetylo V. , Ryzhkov V. , Strihun V. , Barvinok R.
Published: March 2020

У статті проведено аналіз методик визначення балістичних характеристик снарядів для складання таблиць стрільби та вивчення можливостей використання радарної системи MFTR‑2100/40 під час випробування артилерійського та стрілецького озброєння різного функціонального призначення.
Trastorno por atracón y obesidad
Authors: Díaz-Lazo Aníbal
Published: March 2020

La obesidad es un problema de salud pública, se incrementaprogresivamente con el transcurso de los años, en su etiologíase considera como factor importante el desorden en los hábitosalimenticios en los que incurre la población. En la mayoría de casos,los malos hábitos alimenticios se inician en la niñez o la adolescencia.
La encuesta nacional de salud (ENDES) efectuada el 2014 en elPerú, reporta una prevalencia global de sobrepeso en 33,8% y de laobesidad en 18,3% en personas mayores de 15 años, siendo más altaen ciudades de la costa en comparación a lo que se reporta a nivel dela selva y de la sierra.
Programa loncheras saludables en los hábitos alimentarios y el estado nutricional de los estudiantes de una institución educativa de Huánuco
Authors: Rodríguez de Lombardi Gladys Liliana
Published: March 2020

Objetivo. Determinar los efectos del programa Loncheras Saludables enlos hábitos alimentarios y el estado nutricional de los estudiantes del nivelprimaria de la institución educativa San Vicente de la Barquera de Huánuco,al 2018 Métodos. Se realizó un estudio con diseño pre-experimental conaplicación de un estímulo en el programa de loncheras escolares, con pruebaantes y después, en un solo grupo en 179 escolares del nivel primaria; para locual se usó una guía de entrevista en la recolección de los datos y una fcha deregistro para el estado nutricional. En el análisis inferencial se utilizó la pruebade chi cuadrado de independencia con una signifcancia estadística p ≤ 0,05.Resultado. En la variable hábitos alimentarios, después de la intervenciónel valor de signifcancia fue p=0,000 con cambios en 25,1 %; en la variableestado nutricional después de la intervención el valor de signifcancia fuep=0,026, con cambios en un 14,5 % en los estudiantes del nivel primaria enestudio. En consecuencia, se rechaza la hipótesis nula y se acepta la hipótesisde investigación en donde se afrma que el programa de Loncheras Escolarestiene efecto positivo sobre los hábitos alimentarios y el estado nutricional enla muestra en estudio. Conclusiones. El programa Loncheras Escolares tieneefecto positivo sobre los hábitos alimentarios y el estado nutricional en losestudiantes del nivel primaria de la institución educativa San Vicente de laBarquera.
Riesgos asociados a adquisición de tuberculosis en trabajadores de una Micro Red de salud en Lima
Authors: Bautista Benito Guisella Romy
Published: March 2020

Objetivo. Determinar el riesgo de enfermar de tuberculosis. Métodos.Estudio comparativo, transversal con enfoque cuantitativo, conformadopor 255 trabajadores, agrupados en seis (6) establecimientos de salud dela Micro Red Jaime Zubieta Calderón - Red Salud San Juan de Lurigancho,durante el periodo 2016 y 2017. Se empleó una fcha de recolección dedatos, basado en la “Lista de chequeo de Implementación del Plan ControlInstitucional de Infecciones (PCII) de Tuberculosis en Hospitales y EESS”. Enel análisis inferencial se utilizó la Prueba Chi Cuadrada de bondad de ajuste.Resultados. Respecto a los trabajadores, el 83,5 % tuvieron edades entre30 a 59 años 71,0 % fueron del sexo femenino; 60,8 % fueron de condiciónlaboral nombrados, y en el grupo ocupacional predominaron los técnicos deenfermería (29,8 %). Por otro lado, dos establecimientos de salud (50,0 %)lograron responder afrmativamente la lista de 14 preguntas. Y, se encontródiferencias signifcativas en la comparación de proporción de respuestaspositivas con el valor ideal de respuestas de 0,75 por establecimiento desalud (p ≤ 0,05). Conclusiones. Existe riesgo de enfermar de tuberculosisen el personal de salud del primer nivel de atención, de la Micro Red JaimeZubieta Calderón - Red Salud San Juan de Lurigancho.
MODEL PERENCANAAN SISTEM DISTRIBUSI
Authors: Yudhiono
Published: March 2020

Untuk  menghindari   kesalahan-kesalahan   yang    terjadi padaperalatan elektronika, maka dipelukan suatu pengujian pada peralatan yang direncanakan. Pengujian dilakukan dengan menguji tiap-tiap modul dari alat, dan apabila dari tiap modul dapat berjalan dengan baik, maka peralatan ini dianggap telah berjalan sebagaimana yang diharapkan sehingga tinggal mengintegrasikannya.

Berdasarkan  hasil  perencanaan  dan  pembuatan  peralatan  ini,  kami  dapat mengambil kesimpulan sebagai berikut :

Tone  DTMF  handphone  Siemens  M35  hanya  akan  aktif  jika  handphone tersebut telah terhubung atau during a call. Jika tidak, DTMF tone tidak bisa diambil. Ini tidak berlaku untuk handphone lain seperti Nokia. Peralatan ini dihubungkan dengan peralatan listrik yang akan kita kendalikan dan bekerja dengan memanfaatkan data biner hasil terjemahan dari sinyal DTMF. Digunakannya sistem minimum DT-51 pada peralatan ini membuat program yang dibuat jauh lebih singkat. Dengan diberikannya fasilitas input password maka tidak sembarang orang dapat melakukan pengendalian. Dengan adanya feedback yang berupa rekaman suara, diharapkan peralatan ini semakin mudah untuk dipergunakan sehingga didapatkan unjuk kerja yang lebih baik.
CATU	DAYA	TERPROGRAM BERBASIS MIKROKONTROLLER AT89C51
Authors: Anggih Akbar Nugraha
Published: March 2020

Penelitian merupakan penelitian pernacangan catu daya terprogram berbasis mikrokontroller AT89c51. Sistem ini terdiri dari beberapa blok yang saling berhubungan satu sama lain. Dari Pengujian dan analisa yang dilakukan pada Sistem Catu Daya Terprogram , maka dapat diambil beberapa kesimpulan yaitu Catu Daya Terprogram dapat menghasilkan VO = ±12V dengan Resolusi 0,1V. Penyimpangan baku tegangan yang diinginkan terhadap tegangan terukur sebesar 0,025, penyimpangan baku tegangan tertampil pada LCD terhadap tegangan terukur sebesar 0,29. Sistem  ini dapat menghasilkan dua keluaran tegangan yang besaran dan polaritas berbeda diwaktu yang bersamaan (Sinkron). Kemampuan pembebanan mencapai  2,16A. Regulasi Tegangan terukur dengan beban maksimum terhadap tegangan terukur tanpa beban adalah 7,07%.
DESIGNING INDONESIAN LINIER SHIPPING NETWORK
Authors: Dwi Cahyo Utomo
Published: March 2020

Pada umumnya, manajemen yang berhasil adalah manajemen yang efisien namun juga efektif. Karena manajemen yang efisien saja akan sia-sia jika gagal dalam mencapai tujuannya karena kurang efektif, dan manajemen yang efektif saja akan sangat mungkin terjadi pemborosan karena tidak efisien. Dalam agama Islam sangat menganjurkan efisiensi, mulai dari efisiensi keuangan, waktu, bahkan dalam berkata dan berbuat yang sia-sia (tidak ada manfaat dan tidak ada keburukan) saja diperintahkan untuk meninggalkannya, apalagi berbuat yang mengandung keburukan atau kerugian. Untuk menentukan apakah suatu kegiatan dalam organisasi itu termasuk efisien atau tidak maka prinsip-prinsip atau persyaratan efisiensi harus terpenuhi.
PERANCANGAN KEBUTUHAN MATERIAL PADA PERUSAHAAN MANUFAKTUR DENGAN METODE MATERIAL REQUIREMENT PLANNING
Authors: Sandra Jaene A Wuy
Published: March 2020

Peneliti percaya bahwa insinyur industri masa depan, terlepas dari gelar formal atau unit organisasi yang mempekerjakan mereka, akan semakin fokus pada perancangan ulang proses bisnis dengan TI. Peneliti baru mulai mengeksplorasi implikasi dan implementasi konsep ini.
Evaluación de la eficiencia técnica de los municipios del departamento de Punilla, Córdoba, Argentina. / Evaluation of the technical efficiency of the municipality administrations in the Punilla District of Córdoba Province, Argentina.
Authors: Peretto Claudia Beatriz , Cáceres Graciela Inés
Published: March 2020

Se analizan las capacidades institucionales de los municipios del departamento Punilla (Córdoba, Argentina) mediante el cálculo de la eficiencia técnica, para los períodos 2017-2018. Se utiliza la técnica Análisis Envolvente de Datos (DEA), output orientado. Los resultados muestran que para ser eficientes algunos municipios, de los 16 bajo estudio, deben realizar importantes mejoras en la administración y asignación de recursos.

ABSTRACT:

Institutional capacities of the municipalities of the Punilla department (Córdoba), are analyzed through the technical efficiency, for the period 2017-2018.The Data Envelopment Analysis (DEA) technique is used, output oriented. The results show that to be efficient several municipalities, of the 16 under study, must make significant improvements in the administration and allocation of resources.
Innovación tecnológica en emprendimientos productivos tradicionales. El caso de Quimbaya orfebrería. / Technological innovation in traditional productive ventures. The case of Quimbaya orfebrería.
Authors: Crisafulli Luciano
Published: March 2020

La introducción de innovaciones tecnológicas en emprendimientos productivos tradicionales puede generar un impacto significativo en términos de productividad, producción e ingresos. Este es el caso de Quimbaya orfebrería que, aplicando tecnología de impresión 3D a su proceso productivo, mejoró exponencialmente sus indicadores de rentabilidad.

ABSTRACT:

The introduction of technological innovations in productive small companies can generate a significant impact in terms of productivity, production and income. This is the case of Quimbaya who, applying 3D printing technologies to their production process, exponentially improving their profitability indicators.
Gestión de riesgos corporativos y la necesidad de su regulación en las empresas argentinas. / Enterprise risk management and its need of regulation in argentine companies.
Authors: Robles Ana María , Castañeda Ariel Alejandro , Carrizo José Roberto
Published: March 2020

Este artículo es una síntesis de un trabajo de investigación realizado en el marco de convocatoria de la Universidad Blas Pascal (2017-2018) cuyo objetivo surgió como consecuencia de la importancia de considerar como relevante todo aquello vinculado con la gestión de riesgos y su impacto en el gobierno corporativo.

ABSTRACT:

This article is a synthesis of a research work carried out within the framework of the Blas Pascal University (2017-2018), whose objective arose as a consequence of the importance of considering as relevant everything related to risk management and its impact on corporate governance.
KOORDINAČIŲ SISTEMINGŲJŲ PAKLAIDŲ ĮTAKA ŽEMĖS PLUTOS DEFORMACIJŲ RODIKLIŲ ĮVERČIAMS
Authors: Zakarevičius Algimantas , Puzienė Rūta , Stanionis Arminas
Published: March 2020

Išnagrinėta sistemingųjų koordinačių paklaidų įtaka Žemės plutos deformacijų tenzoriams ir svarbiausiems deformacijų rodikliams,
kai deformacijų rodikliai pagal geodezinius matavimus apskaičiuojami baigtinių elementų metodu. Gautos formulės paklaidų įtakai apskaičiuoti esant
įvairiems tiesiniams sistemingųjų paklaidų kaupimosi modeliams. Teoriniai sprendimai patikrinti skaičiuojamaisiais eksperimentais. Nustatyta, kad
pastovios koordinačių paklaidos deformacijų tenzoriams ir deformacijų rodikliams įtakos neturi. Bet kokios tiesiškai nuo punktų padėties priklausančios
sistemingosios koordinačių paklaidos turi įtakos deformacijų tenzorių elementų ir deformacijų rodiklių įverčiams, tačiau deformacijų pokyčiai nagrinėjamoje
teritorijoje išlieka tokie patys kaip ir be sistemingųjų paklaidų.
BOUGUER ANOMALIJŲ ŽEMĖLAPIO PATIKSLINIMAS GIS PRIEMONĖMIS
Authors: Šliaupa Saulius , Dėnas Žydrūnas , Korabliova Larisa
Published: March 2020

Gravitacinio lauko variacijas geriausiai atspindi Bouguer anomalijų žemėlapis, kuri sudarant, be kitų parametrų,
labai svarbu žinoti tarpinio sluoksnio, t. y. sluoksnio, esančio tarp Žemes paviršiaus ir jūros lygio, tankį. Pagal priimtą metodiką
Lietuvos Bouguer anomalijų žemėlapis sudarytas įvedus pastovų 2,30 g/cm3 tankį. Tačiau geologiniai tyrimai rodo, kad viršutiniams sluoksniams
būdingas labai ryškus uolienų sudėties ir atitinkamai tankio kitimas, todėl dabar naudojamas gravitacinio lauko žemėlapis nėra visai tikslus.
Anomalijų laisvajame ore ir aukščiu koreliacija rodo, kad vidutinis tarpinio sluoksnio tankis yra gerokai mažesnis (mažesnis nei 2,24 g/cm3).
Straipsnyje pateikiama nauja tarpinio sluoksnio tankiu įvertinimo, taikant GIS technologijas, metodika. Pagal iš 13 222 gręžinių gautą informaciją s
udarytas detalus tankių žemėlapis. Šie duomenys automatiškai pervesti į gravitacinius stebėjimo taškus, atitinkamai perskaičiuotas Bouguer anomalijų
žemėlapis. Masių deficitas, palyginti su ankstesniu tarpinio sluoksnio modeliu, kinta nuo +10 000 kg/m2 Šiaures Lietuvos centrinėje dalyje iki
–30 000 kg/m2 — –50 000 kg/m2 didžiojoje Lietuvos dalyje. Atitinkamai gerokai pakoreguotos ir Bouguer anomalijų reikšmes. Skirtumas siekia net
2–3 mGal Baltijos aukštumose, 0,5–1 mGal Žemaitijos aukštumose ir –0,5 mGal Šiaures Lietuvos centrinėje dalyje. Siūloma metodika galima plačiai
taikyti ir kituose regionuose tikslinant gravitacinio lauko žemėlapius. Be to, tai leidžia koreguoti ir kitus gravitacinio lauko žemėlapius
(pvz., nustatant geoidą).
TOPOLOGINIO 3D MODELIO KŪRIMO GEOINFORMACINĖSE SISTEMOSE YPATUMAI
Authors: Čypas Kęstutis
Published: March 2020

Sudarant 3D topologinį modelį geoinformacinių sistemų erdvėje iškyla topologinių ryšių tarp objektų trimatėje erdvėje nustatymo problema.
Straipsnyje pateikiamos topologinio 3D modelio kūrimo problemos ir nagrinėjamas teorinis topologinių ryšių nustatymo būdas. Ryšiams nustatyti panaudotas objektiškai
orientuotas modelis, pagrįstas simpleksais bei grafų teorija. Galimos topologinės sąsajos trimatėje erdvėje nustatytos taikant devynių susikirtimų modelį. Gautų
sąsajų tarp objektų trimatėje erdvėje skaičius skiriasi nuo kitų autorių gautų rezultatų, todėl galima patvirtinti, kad jis priklauso nuo pasirinkto modelio,
topologinių sąsajų nustatymo būdo bei kitų išankstinių sąlygų.
NEŠLIO FAZIŲ DVIGUBŲJŲ SKIRTUMŲ TAIKYMAS JONOSFEROS ĮTAKAI ELIMINUOTI NUSTATANT KOORDINATES
Authors: Skeivalas Jonas
Published: March 2020

GPS matavimų rezultatų apdorojimo procedūrų tobulinimo temos aptariamos daugelyje straipsnių bei monografijų.
Šiame straipsnyje analizuojamas nešlio fazių dvigubųjų skirtumų taikymas jonosferos įtakai eliminuoti, apdorojant dviejų nešlio dažnių
GPS imtuvų matavimų rezultatus. Skaičiavimų procedūrose taikomos nešlio fazių dvigubųjų skirtumų išraiškos su papildomais parametrais
jonosferos įtakai eliminuoti. Jonosferos įtaka eliminuojama sprendžiant mažiausiųjų kvadratų metodu redukuotas, taikant abu nešlio dažnius,
kiekvienos epochos nešlio fazių dvigubųjų skirtumų parametrines lygtis. Parametrinių lygčių sistema sprendžiama sudarant papildomas
kolokacines lygtis. Sprendinio rezultatų patikimumui įvertinti siūlomos kovariacijų matricų formulės.
PRECIZINIO NIVELIAVIMO SKAITMENINIAIS NIVELYRAIS WILD NA3003 METODIKOS TOBULINIMAS
Authors: Krikštaponis Boleslovas , Tumelienė Eglė , Rekus Donatas
Published: March 2020

Skaitmeniniais nivelyrais Wild NA3003 precizinis niveliavimas atliekamas vienintele darbo stotyje numatyta seka
BFFB (angl. backsight, foresight, foresight, backsight). Pagrindinai dėl šios priežasties gaunama nemaža teigiama dvipusio niveliavimo
būdu nustatytų aukščių skirtumų nesutapimų sankaupa, viršijanti leistinąją. Eksperimentiniai matavimai patvirtina, kad taikant simetriškąją
atskaičiavimų seką stotyse, aukščių skirtumų nesutapimas labai sumažėja. Nesant galimybės programiškai pakeisti skaitmeniniuose nivelyruose
numatytos matavimų sekos, pasiūlyta taikyti simetriškąją atskaičiavimų seką. Ją taikant matavimų rezultatus būtina fiksuoti niveliavimo
žurnale ir lauke apskaičiuoti tikrąsias aukščių skirtumų sumas. Be netinkamos matavimų sekos, matavimų skaitmeniniais nivelyrais
rezultatams įtakos turi specifinės atskaičiavimų kodinių matuoklių galuose, matuoklių apšviestumo, vertikaliųjų nivelyro ir matuoklių
poslinkių paklaidos.
LIETUVOS RELJEFAS KARTOGRAFINIUOSE DOKUMENTUOSE
Authors: Girkus Romualdas , Lukoševičius Viktoras
Published: March 2020

Pateikta skirtingose Lietuvos žinybose dirbusių specialistų – miškininkų, kelininkų, geografų, topografų,
hidrografų, žemėtvarkininkų ir geoinformatikų įvairaus laikotarpio Lietuvos reljefo interpretacijos. Aptariami svarbiausieji
Lietuvos reljefą apibūdinantys, pastarojo šimtmečio kartografiniai produktai. Analizuojama Lietuvos reljefo vaizdavimo raida,
pateikiama jos kokybinės ir technologinės charakteristikos. Šiek tiek pateikiama informacijos apie kartografinių produktų autorius.
Surpass Flow-Diverter in the Treatment of Two Wide-Neck Aneurysms in the Scheme of an Arteriovenous Malformation Patient: A Case Study
Authors: Duc Dang Phuc , Thuan Do Duc , Dai Pham Dinh , Duc Dang Minh , Quang Anh Nguyen , Nga Nguyen Thi , Toi Chu Dinh , Viet Phuong Dao , Mai Mai Duy Ton
Published: March 2020

BACKGROUND: The cerebral arterial aneurysm, especially in the circumstances of ateriovenous malformation (AVM), has higher risk of rupture than normal isolated aneursym. Therefore, the treatment strategy needs to be plan very carefully in such case.
CASE PRESENTATION: We report a patient with 2 wide-neck aneurysms located in the feeding artery of the arteriovenous malformation and he, then, was treated by using Surpass stent (flow-diverter) to eliminate the aneurysms.
CONCLUSION: In our case, multiple wide-neck aneurysms in combination with low risk unruptured AVM, using long Surpass stent-diversion is an effective way to eliminate all the aneurysms in the main feeding artery while still preserving the AVM anatomy.
Clinical Characteristics and Histopathology of Idiopathic Epiretinal Membrane in Vietnam
Authors: Ngan Nguyen Dinh , Cuong Nguyen Van , Trung Nguyen Le , Dat Dang Tran , Tuan Hoang Anh , Dong Pham Ngoc , Nga Vu Thi , Bac Nguyen Duy , Le Xuan Cung
Published: March 2020

BACKGROUND: Idiopathic epiretinal membrane (iERM) is an avascular proliferation of different types of cells between the posterior vitreous cortex and the internal limiting membrane. That causes visual impairment including blurry, distortion, scotoma. Many studies of iERM were done to describe the clinical characteristics and investigate the histopathology of this disease. Nonetheless, there has not been a study of iERM histopathology in Vietnam.
AIMS: To describe clinical characteristics and histopathological results of idiopathic retinal membrane and the association between them.
METHODS: A cross sectional decriptive study of 35 iERMs (33 patients) in Vietnam National Institute of Ophthalmology (VNIO).
RESULTS: High morbidity incidence was in group age >50 years (32/35), female gender (26/35), limited movement works (27/35), and high educational levels (28/35). Distortion was the highest (77.14%), scotoma and floater was less frequent (28.5%, 45.7%). Macular edema in all cases and PVD and exudate were high frequent (65.7%, 62.8%). Symptom duration was 8.2 ± 4.7 months, (1-21 months). Mean of central macular thickness was 468.51 ± 97.24 µm (656-274 µm). Six types of cell were detected, including glial cell (35/35), fibroblast (23/35), myofibroblast (23/35), macrophage (13/35), lymphocyte (5/35) and neutrophil (2/35). The number of cell types in one sample ranged from 1-5 types (2.85 ± 1.28 cell types). Number of cell types were correlated to symptom duration (r = 0.47, p = 0.004, Pearson's test) and central macular thickness (r = 0.72, p < 0.001, Pearson's test).
CONCLUSION: There were 6 types of cells in iERM. Glial cell was the most frequent cell, inflammatory cells (macrophage, lymphocyte, neutrophil) was also detected. The number of cell types was stastitically correlated to symptom duration and CMT.
Lactobacillus plantarum S27 from chicken faeces as a potential probiotic to replace antibiotics: in vivo evidence
Authors: Benbara T. , Lalouche S. , Drider D. , Bendali F.
Published: March 2020

This study reports the probiotic attributes of Lactobacillus strains isolated from chicken faeces and mainly their capabilities to prevent infectious diseases and improve chicken production performance. Thus, 22 Lactobacillus strains were isolated from 50 chickens’ faeces samples and assessed for their resistance to gastric acidity (pH 0.5, 1, 1.5, 2 and 2.5), tolerance to bile salts, adherence to broiler intestinal cells and antibacterial activity. These in vitro screening analyses revealed Lactobacillus plantarum S22 and L. plantarum S27 as the only strains capable to survive at pH 2.0 in MRS broth (log10 cfu/ml=5.02 and 8.46 log respectively), while the remaining strains were not resistant to pH≤2.0. Similarly, 21 strains were resistant to bile at 0.5% (log10 cfu/ml=0.09-3.32 log), but only Lactobacillus fermentum S26, L. plantarum S22 and L. plantarum S27 were able to grow in the presence of 0.1% (w/v) bile (8.23±0.15; 8.39±0.17 and 8.57±0.07 respectively). Most of these isolates (19/22) were active against Escherichia coli ATCC 25922, E. coli SL2016 and Salmonella enterica CIP 81-3. Lactic acid is likely the main antibacterial compound produced since the neutralised supernatant was devoid of any antibacterial activity. In vitro characterisation of these 22 novel strains, based on the aforementioned criteria revealed L. plantarum S27 as the most suitable strain for in vivo analyses. To this end, this strain was assessed for its sensitivity to different antibiotics and adhesion to poultry intestinal cells to ascertain it probiotic attributes. The administration of L. plantarum S27 to the chicks at 109 cfu/ml permitted to improve the animal food intake and weight. Taken together, data from in vitro and in vivo analyses indicated that L. plantarum S27 might be a worthy probiotic for chickens rather than adding antibiotics to animals feeding.
Establishing a Sustainable Process to Measure Learner Performance
Authors: Saxena Mamta , Kasparian Melanie
Published: March 2020

The quality of student learning and academic rigor is central to higher education. Nonetheless, colleges often prioritize metrics such as enrollment and graduation rates or use assessment data to solely fulfill accreditation requirements. The Academic Quality Assurance (AQA) team at a university ventured to expand the academic quality data landscape to learn more about student achievement. The paper shares the team’s journey to collect and report on student performance data for continuous improvement of academic programs. Specifically, this paper includes the methods to promote a culture of assessment by incorporating new concepts into the AQA process: Data visualization and storytelling with data. This paper includes the methodology to collect and report on data, samples of the systems and visualizations used, and the challenges faced in the context of people, process, and tools.
Il dialogo intertestuale di Bufalino con Ripellino: un primo sondaggio su L’amaro miele
Authors: Traina Giuseppe
Published: March 2020

L’articolo offre i primi risultati di un confronto intertestuale tra le poesie di Gesualdo Bufalino (L’amaro miele, 1982) e le opere di Angelo Maria Ripellino: l’analisi è condotta sulla metrica, la sintassi, il lessico.
GIOVANNI BATTISTA PALLETTA (1748-1832) Â«DOTTO CHIRURGO E PRATICO ECCELLENTEÂ» A CAPO DELLA CHIRURGIA DELLâ€™OSPEDALE MAGGIORE
Authors: Dionigi Renzo , Terreni Andrea
Published: March 2020

Giovanni Battista Palletta, trained at the school of Bernardino Moscati, Pietro Moscati and Giovanni Alessandro Brambilla, was a highly appreciated surgeon of the Ospedale Maggiore in Milan. Many of his clinical researches made him known in the international surgical community. There is no doubt that his vast experience, his ability, the successes achieved, the innovations introduced, his trait as a man of few words, justify the opinion of most of the historians of surgery who believe his reputation to be much higher than that of his own teachers.
Photophoretic spectroscopy in atmospheric chemistry – high sensitivity measurements of light absorption by a single particle
Authors: Bluvshtein Nir , Krieger Ulrich K. , Peter Thomas
Published: March 2020

Abstract. Light absorbing organic atmospheric particles, termed brown carbon, undergo chemical and photochemical aging processes during their lifetime in the atmosphere. The role these particles play in the global radiative balance and in the climate system is still uncertain. To better quantify their radiative forcing due to aerosol-radiation interactions, we need to improve process level understanding of aging processes, which lead to either "browning" or "bleaching" of organic aerosols. Currently available laboratory techniques aim to simulate atmospheric aerosol aging and measure the evolving light absorption, but suffer from low sensitivity and precision. This study describes the use of electrodynamic balance photophoretic spectroscopy (EDB-PPS) for high sensitivity and high precision measurements of light absorption by a single particle. We demonstrate the retrieval of time-evolving imaginary part of the refractive index for a single levitated particle in the range of 10−4 to 10−5 with uncertainties of less than 25 % and 60 %, respectively. The experimental system is housed within an environmental chamber, in which aging processes can be simulated in realistic atmospheric conditions and lifetime of days to weeks. This high level of sensitivity enables future studies to explore the major processes responsible for formation and degradation of brown carbon aerosols.
Fire hazard modulation by long-term dynamics in land cover and dominant forest type in eastern and central Europe
Authors: Feurdean Angelica , Vannière Boris , Finsinger Walter , Warren Dan , Connor Simon C. , Forrest Matthew , Liakka Johan , Panait Andrei , Werner Christian , Andrič Maja , Bobek Premysl , Carter Vachel A. , Davis Basil , Diaconu Andrei-Cosmin , Dietze Elisabeth , Feeser Ingo , Florescu Gabriela , Gałka Mariusz , Giesecke Thomas , Jahns Susanne , Jamrichová Eva , Kajukało Katarzyna , Kaplan Jed , Karpińska-Kołaczek Monika , Kołaczek Piotr , Kuneš Petr , Kupriyanov Dimitry , Lamentowicz Mariusz , Lemmen Carsten , Magyari Enikö K. , Marcisz Katarzyna , Marinova Elena , Niamir Aidin , Novenko Elena , Obremska Milena , Pędziszewska Anna , Pfeiffer Mirjam , Poska Anneli , Rösch Manfred , Słowiński Michal , Stančikaitė Miglė , Szal Marta , Święta-Musznicka Joanna , Tanţău Ioan , Theuerkauf Martin , Tonkov Spassimir , Valkó Orsolya , Vassiljev Jüri , Veski Siim , Vincze Ildiko , Wacnik Agnieszka , Wiethold Julian , Hickler Thomas
Published: March 2020

Abstract. Wildfire occurrence is influenced by climate, vegetation and human
activities. A key challenge for understanding the risk of fires is quantifying the mediating effect of vegetation on fire
regimes. Here, we explore the relative importance of Holocene land cover,
land use, dominant functional forest type, and climate dynamics on biomass
burning in temperate and boreo-nemoral regions of central and eastern Europe
over the past 12 kyr. We used an extensive data set of Holocene pollen and
sedimentary charcoal records, in combination with climate simulations and
statistical modelling. Biomass burning was highest during the early Holocene
and lowest during the mid-Holocene in all three ecoregions (Atlantic, continental and boreo-nemoral) but was more spatially variable over the past 3–4 kyr. Although climate explained a
significant variance in biomass burning during the early Holocene, tree
cover was consistently the highest predictor of past biomass burning over
the past 8 kyr. In temperate forests, biomass burning was high at
∼45 % tree cover and decreased to a minimum at between 60 % and
70 % tree cover. In needleleaf-dominated forests, biomass burning was
highest at ∼ 60 %–65 % tree cover and steeply declined at
>65 % tree cover. Biomass burning also increased when arable
lands and grasslands reached ∼ 15 %–20 %, although this
relationship was variable depending on land use practice via ignition
sources, fuel type and quantities. Higher tree cover reduced the amount of
solar radiation reaching the forest floor and could provide moister, more
wind-protected microclimates underneath canopies, thereby decreasing fuel
flammability. Tree cover at which biomass burning increased appears to be
driven by warmer and drier summer conditions during the early Holocene and
by increasing human influence on land cover during the late Holocene. We suggest that long-term fire hazard
may be effectively reduced through land cover management, given that land
cover has controlled fire regimes under the dynamic climates of the
Holocene.
The INSIEME seismic network: a research infrastructure for studying induced seismicity in the High Agri Valley (southern Italy)
Authors: Stabile Tony Alfredo , Serlenga Vincenzo , Satriano Claudio , Romanelli Marco , Gueguen Erwan , Gallipoli Maria Rosaria , Ripepi Ermann , Saurel Jean-Marie , Panebianco Serena , Bellanova Jessica , Priolo Enrico
Published: March 2020

Abstract. The High Agri Valley is a tectonically active area in
southern Italy characterized by high seismic hazard related to fault systems
capable of generating up to M=7 earthquakes (i.e. the 1857 Mw=7
Basilicata earthquake). In addition to the natural seismicity, two different
clusters of induced microseismicity were recognized to be caused by
industrial operations carried out in the area: (1) the water loading and
unloading operations in the Pertusillo artificial reservoir and (2) the
wastewater disposal at the Costa Molina 2 injection well. The twofold nature
of the recorded seismicity in the High Agri Valley makes it an ideal study
area to deepen the understanding of driving processes of both natural and
anthropogenic earthquakes and to improve the current methodologies for the
discrimination between natural and induced seismic events by collecting
high-quality seismic data. Here we present the dataset gathered by the
INSIEME seismic network that was installed in the High Agri Valley within
the SIR-MIUR research project INSIEME (INduced Seismicity in Italy:
Estimation, Monitoring, and sEismic risk mitigation). The seismic network
was planned with the aim to study the two induced seismicity clusters and to
collect a full range of open-access data to be shared with the whole
scientific community. The seismic network is composed of eight stations
deployed in an area of 17 km×11 km around the two clusters of
induced microearthquakes, and it is equipped with triaxial weak-motion
broadband sensors placed at different depths down to 50 m. It allows us to
detect induced microearthquakes, local and regional earthquakes, and teleseismic
events from continuous data streams transmitted in real time to the CNR-IMAA
Data Centre. The network has been registered at the International Federation
of Digital Seismograph Networks (FDSN) with code 3F. Data collected until
the end of the INSIEME project (23 March 2019) are already released with
open-access policy through the FDSN web services and are available from IRIS
DMC (https://doi.org/10.7914/SN/3F_2016; Stabile
and INSIEME Team, 2016). Data collected after the project will be available with the
permanent network code VD (https://doi.org/10.7914/SN/VD, CNR IMAA Consiglio Nazionale delle Ricerche, 2019) as part of the
High Agri Valley geophysical Observatory (HAVO), a multi-parametric network
managed by the CNR-IMAA research institute.
Dense point cloud acquisition with a low-cost Velodyne VLP-16
Authors: Bula Jason , Derron Marc-Henri , Mariéthoz Grégoire
Published: March 2020

Abstract. This study develops a method to acquire dense point clouds with a low-cost Velodyne VLP-16 lidar system, without using expensive GNSS positioning or IMU. Our setting consists in mounting the lidar on a motor to continuously change the scan direction, which leads to a significant increase in the point cloud density. A post-treatment reconstructs the position of each point accounting for the motor angle at the time of acquisition, and a calibration step accounts for inaccuracies in the hardware assemblage. The system is tested in indoors settings such as buildings and abandoned mines, but is also expected to give good results outdoors. It is also compared with a more expensive system based on IMU registration and a SLAM algorithm. The alignment between acquisitions with those two systems is within a distance of 2 cm.
Using hydrological and climatic catchment clusters to explore drivers of catchment behavior
Authors: Jehn Florian U. , Bestian Konrad , Breuer Lutz , Kraft Philipp , Houska Tobias
Published: March 2020

Abstract. The behavior of every catchment is unique. Still, we seek for ways to classify them as this helps to improve hydrological theories. In this study, we use hydrological signatures that were recently identified as those with the highest spatial predictability to cluster 643 catchments from the CAMELS dataset. We describe the resulting clusters concerning their behavior, location and attributes. We then analyze the connections between the resulting clusters and the catchment attributes and relate this to the co-variability of the catchment attributes in the eastern and western US. To explore whether the observed differences result from clustering catchments by either climate or hydrological behavior, we compare the hydrological clusters to climatic ones. We find that for the overall dataset climate is the most important factor for the hydrological behavior. However, depending on the location, either aridity, snow or seasonality has the largest influence. The clusters derived from the hydrological signatures partly follow ecoregions in the US and can be grouped into four main behavior trends. In addition, the clusters show consistent low flow behavior, even though the hydrological signatures used describe high and mean flows only. We can also show that most of the catchments in the CAMELS dataset have a low range of hydrological behaviors, while some more extreme catchments deviate from that trend. In the comparison of climatic and hydrological clusters, we see that the widely used Köppen–Geiger climate classification is not suitable to find hydrologically similar catchments. However, in comparison with novel, hydrologically based continuous climate classifications, some clusters follow the climate classification very directly, while others do not. From those results, we conclude that the signal of the climatic forcing can be found more explicitly in the behavior of some catchments than in others. It remains unclear if this is caused by a higher intra-catchment variability of the climate or a higher influence of other catchment attributes, overlaying the climate signal. Our findings suggest that very different sets of catchment attributes and climate can cause very similar hydrological behavior of catchments – a sort of equifinality of the catchment response.