bluuebunny/crossref_metadata_2025 huggingface dataset:
Magnetic resonance–guided stereotactic laser ablation therapy for the treatment of pediatric brain tumors: a multiinstitutional retrospective study
Authors: Arocho-Quinones Elsa V. , Lew Sean M. , Handler Michael H. , Tovar-Spinoza Zulma , Smyth Matthew , Bollo Robert , Donahue David , Perry M. Scott , Levy Michael L. , Gonda David , Mangano Francesco T. , Storm Phillip B. , Price Angela V. , Couture Daniel E. , Oluigbo Chima , Duhaime Ann-Christine , Barnett Gene H. , Muh Carrie R. , Sather Michael D. , Fallah Aria , Wang Anthony C. , Bhatia Sanjiv , Patel Kadam , Tarima Sergey , Graber Sarah , Huckins Sean , Hafez Daniel M. , Rumalla Kavelin , Bailey Laurie , Shandley Sabrina , Roach Ashton , Alexander Erin , Jenkins Wendy , Tsering Deki , Price George , Meola Antonio , Evanoff Wendi , Thompson Eric M. , Brandmeir Nicholas , the Pediatric Stereotactic Laser Ab
Published: April 2020

OBJECTIVE

This study aimed to assess the safety and efficacy of MR-guided stereotactic laser ablation (SLA) therapy in the treatment of pediatric brain tumors.

METHODS

Data from 17 North American centers were retrospectively reviewed. Clinical, technical, and radiographic data for pediatric patients treated with SLA for a diagnosis of brain tumor from 2008 to 2016 were collected and analyzed.

RESULTS

A total of 86 patients (mean age 12.2 ± 4.5 years) with 76 low-grade (I or II) and 10 high-grade (III or IV) tumors were included. Tumor location included lobar (38.4%), deep (45.3%), and cerebellar (16.3%) compartments. The mean follow-up time was 24 months (median 18 months, range 3–72 months). At the last follow-up, the volume of SLA-treated tumors had decreased in 80.6% of patients with follow-up data. Patients with high-grade tumors were more likely to have an unchanged or larger tumor size after SLA treatment than those with low-grade tumors (OR 7.49, p = 0.0364). Subsequent surgery and adjuvant treatment were not required after SLA treatment in 90.4% and 86.7% of patients, respectively. Patients with high-grade tumors were more likely to receive subsequent surgery (OR 2.25, p = 0.4957) and adjuvant treatment (OR 3.77, p = 0.1711) after SLA therapy, without reaching significance. A total of 29 acute complications in 23 patients were reported and included malpositioned catheters (n = 3), intracranial hemorrhages (n = 2), transient neurological deficits (n = 11), permanent neurological deficits (n = 5), symptomatic perilesional edema (n = 2), hydrocephalus (n = 4), and death (n = 2). On long-term follow-up, 3 patients were reported to have worsened neuropsychological test results. Pre-SLA tumor volume, tumor location, number of laser trajectories, and number of lesions created did not result in a significantly increased risk of complications; however, the odds of complications increased by 14% (OR 1.14, p = 0.0159) with every 1-cm3 increase in the volume of the lesion created.

CONCLUSIONS

SLA is an effective, minimally invasive treatment option for pediatric brain tumors, although it is not without risks. Limiting the volume of the generated thermal lesion may help decrease the incidence of complications.
Seizures following surgery for supratentorial extratemporal low-grade tumors in children: a multicenter retrospective study
Authors: Roth Jonathan , Bercovich Or , Roach Ashton , Mangano Francesco T. , Mohan Arvind C. , Aldave Guillermo , Weiner Howard L. , Thomale Ulrich-Wilhelm , Schaumann Andreas , Uliel-Sibony Shimrit , Constantini Shlomi
Published: April 2020

OBJECTIVE

Resection of brain tumors may lead to new-onset seizures but may also reduce seizure rates in patients presenting with seizures. Seizures are seen at presentation in about 24% of patients with brain tumors. For lesional epilepsy in general, early resection is associated with improved seizure control. However, the literature is limited regarding the occurrence of new-onset postoperative seizures, or rates of seizure control in those presenting with seizures, following resections of extratemporal low-grade gliomas (LGGs) in children.

METHODS

Data were collected retrospectively from 4 large tertiary centers for children (< 18 years of age) who underwent resection of a supratentorial extratemporal (STET) LGG. The patients were divided into 4 groups based on preoperative seizure history: no seizures, up to 2 seizures, more than 2 seizures, and uncontrolled or refractory epilepsy. The authors analyzed the postoperative occurrence of seizures and the need for antiepileptic drugs (AEDs) over time for the various subgroups.

RESULTS

The study included 98 children. Thirty patients had no preoperative seizures, 18 had up to 2, 16 had more than 2, and 34 had refractory or uncontrolled epilepsy. The risk for future seizures was higher if the patient had seizures within 1 month of surgery. The risk for new-onset seizures among patients with no seizures prior to surgery was low. The rate of seizures decreased over time for children with uncontrolled or refractory seizures. The need for AEDs was higher in the more active preoperative seizure groups; however, it decreased with time.

CONCLUSIONS

The resection of STET LGGs in children is associated with a low rate of postoperative new-onset epilepsy. For children with preoperative seizures, even with uncontrolled epilepsy, most have a significant improvement in the seizure activity, and many may be weaned off their AEDs.
Archiwum i Biblioteka Parafialna w Wojniczu
Authors: Szymański Józef
Published: April 2020

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Zaginione źródło - rękopis akt kapitulnych zgromadzenia XX. Marianów z lat 1670-1767
Authors: Górski Karol
Published: April 2020

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Sprawozdanie z kursu dla pracowników archiwów kościelnych, zarganizowanego przez Ośrodek ABMK w dniach 3-8 lipca 1961 r.
Authors: Kumor Bolesław
Published: April 2020

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Regesty wybranych zapisek z akt działalności arcybiskupów gnieźnieńskich
Authors: Rybus Henryk
Published: April 2020

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Archiwum Diecezjalne w Lublinie
Authors: Stopniak Franciszek
Published: April 2020

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Medale i monety poświęcone świętemu Janowi Pawłowi II w kontekście współczesnego polskiego rynku dzieł medalierskich i numizmatycznych
Authors: Maiński Dominik
Published: April 2020

Wśród osób tworzących rynek monet i medali we współczesnej Polsce są wykwalifikowani kolekcjonerzy, posiadający zgłębioną wiedzę o pozyskiwanych obiektach, inwestorzy lub też przypadkowi zbieracze. Szczególne emocje podczas zakupu dzieł do kolekcji budzą monety i medale poświęcone św. Janowi Pawłowi II, których cena nabycia często przekracza rzeczywistą wartość przedmiotu. Miejsc, w których można kupić te przedmioty, jest wiele: sklepy stacjonarne lub internetowe, aukcje, giełdy i targi staroci, instytucje kościelne lub bezpośrednio u autora projektu. Mennica Polska, jako najbardziej prestiżowa instytucja produkująca monety i medale w kraju, dysponuje sklepem stacjonarnym. Wskazany jest zakup przedmiotów w możliwie najlepszych stanach zachowania. Wśród kolekcjonerów popularne są niezmiennie monety i medale dawnej Polski. Zbierane są grupy tematyczne jak: II wojna światowa, flora i fauna czy Jan Paweł II. Zainteresowaniem cieszą się również numizmaty emitowane za granicą. Do nowych trendów kolekcjonerstwa zaliczyć można pozyskiwanie monet obiegowych w doskonałych stanach zachowania, a także tzw. destruktów menniczych (monety błędnie wybite). Kolekcjonerzy większą uwagę zwracają na wartość rynkową przedmiotu, tematykę, niski nakład, kruszec, z którego je wykonano, niż na walory estetyczne, stąd unikatowe tzw. medale autorskie można nabyć za kwoty nieprzekraczające kilkuset złotych. Pomoc w kompletowaniu zbioru stanowią liczne katalogi i cenniki, także dotyczące tematu papieskiego. W literaturze naukowej brak jest opracowań analizujących ikonografię monet i medali oraz ich warstwę stylistyczną.
Starania zielonogórskich grekokatolików o własną świątynię
Authors: Wanatko Grzegorz
Published: April 2020

Wskutek powojennych przesiedleń, głównie w ramach akcji „Wisła” w 1947 roku, na terenie Ziemi Lubuskiej znalazła się liczna grupa mniejszości ukraińskiej w tym grekokatolików. Do 1956 roku byli oni pozbawieni możliwości praktyk religijnych w swoim obrządku. Wydarzenia w Polsce z 1956 roku umożliwiły erygowanie parafii i odprawianie nabożeństw greckokatolickich, które odbywały się w kościołach łacińskich. W Zielonej Górze stan ten trwał kilka dekad, gdyż wspólnota greckokatolicka nie posiadała własnej świątyni. Pierwsze, nieudane próby uzyskania własnej świątyni grekokatolicy podjęli w latach 80. XX w. Starania te kontynuowano w latach 90. XX w. Zielonogórscy grekokatolicy zdecydowali się podjąć trudu własnej świątyni na drodze adaptacji budynku. Realizacja tego przedsięwzięcia trwała niemal 20 lat. Próby uzyskania obiektu parafia podejmowała wspólnie z miejscowym Zarządem Zielonogórskiego Koła Związku Ukraińców w Polsce, gdyż uzyskany lokal miałby zabezpieczać potrzeby religijne i kulturalne mniejszości ukraińskiej. Rozmowy prowadzone były z Urzędem Wojewódzkim i Urzędem Miejskim. Większość proponowanych obiektów była nie do przyjęcia, czego powodem był zły stan budynków, bądź ich umiejscowienie. Na początku XXI wieku miasto zaproponowało grekokatolikom budynek dawnej winiarni Briegera. Parafianie zaakceptowali propozycję, mimo, że obiekt wymagał gruntownego remontu i przebudowy. Pierwsze prace remontowe rozpoczęto w 2003, a trwały do 2008 roku. Ich zwieńczeniem była uroczysta konsekracja Cerkwi przy ul. Boduena, która odbyła się 11.10.2008 roku. Tym samym proces starań uległ zakończeniu, a życiem parafii zawładnął trud zagospodarowania nowego Domu Bożego.
Inwentarz kościoła parafialnego w Lądzie z 1936 roku. Edycja źródłowa
Authors: Wąsowicz Jarosław
Published: April 2020

Inwentarz kościoła parafialnego w Lądzie n. Wartą został sporządzony 26 września 1936 roku po objęciu funkcji proboszcza i dyrektora Zakładu Salezjańskiego przez ks. Franciszka Miśkę SDB, późniejszego męczennika drugiej wojny światowej, obecnie kandydata na ołtarze. Dokument stanowi ostatnie źródło dokumentujące stan wyposażenia kościoła przed wybuchem wojny. Klasztor w czasie okupacji od stycznia 1940 roku do października 1941 roku pełnił funkcję obozu przejściowego dla duchownych z kilku diecezji i zakonów. Później Niemcy przeznaczyli klasztor na szkołę Hitlerjugend, która funkcjonowała aż do momentu wyzwalania tych ziem. W czasie okupacji klasztor, kościół i jego wyposażenie uległy licznym dewastacjom.
Sprawozdanie z działalności Ośrodka Archiwów, Bibliotek i Muzeów Kościelnych za rok 1962
Authors: Kumor Bolesław
Published: April 2020

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Sprawozdanie z czynności Archiwum i Muzeum Archidiecezjalnego oraz Biblioteki Kapitulnej we Wrocławiu w roku 1965
Authors: Pilarska Angelina
Published: April 2020

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[Recenzja]: Irena Radtke, Kancelaria miasta Poznania do roku 1570, Państwowe Wydawnictwo Naukkowe, Warszawa 1967, ss. 171, nlb. 1
Authors: Lenort Feliks
Published: April 2020

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Granice metropolii i diecezji polskich (966-1939) : (c. d.)
Authors: Kumor Bolesław
Published: April 2020

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Z dziejów Muzeum Diecezjalnego w Siedlcach
Authors: Młynarski Zdzisław
Published: April 2020

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Biblioteka biskupa Hieronima Rozrażewskiego (1542-1600)
Authors: Grzebień Ludwik
Published: April 2020

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O niektórych źródłach do historii zakonu premonstrateńskiego w Polsce w XII i XIII wieku
Authors: Deptuła Czesław
Published: April 2020

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Akta wizytacyjne jako podstawa źródłowa do badań nad siecią szkół parafialnych: (na przykładzie archidiakonatu śremskiego)
Authors: Olczak Stanisław
Published: April 2020

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Relacja o śmierci Józefa Ignacego Kraszewskiego. Z materiałów Archiwum OO. Kapucynów w Krakowie
Authors: Starnawski Jerzy
Published: April 2020

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Powstanie Kapituły Kolegiackiej w Pułtusku
Authors: Góralski Wojciech
Published: April 2020

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Organizacja bibliotek jezuickich w Polsce od XVI do XVIII wieku
Authors: Grzebień Ludwik
Published: April 2020

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Inwentarz spuścizny malarskiej Imeldy Neugebauer OP
Authors: Świętochowski Robert
Published: April 2020

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Biblioteka Katedralna w Gnieźnie: (cd.)
Authors: Rył Jadwiga
Published: April 2020

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Relacje o stanie diecezji tarnowskiej z lat 1791-1863: (dok.)
Authors: Kumor Bolesław
Published: April 2020

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[Recenzja]: Archiv für schlesische Kirchengeschichte, Band 34, Im Auftrage des Instituts für Ostdeutsche Kirchen- und Kulturgeschichte herausgegeben von Joseph Gottschalk, Hildesheim 1976
Authors: Kumor Bolesław
Published: April 2020

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Powołanie do życia Federacji Bibliotek Kościelnych - FIDES
Authors: Bendarczyk Jan
Published: April 2020

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Formuła "transivit per manus" w średniowiecznych dokumentach arcybiskupów gnieźnieńskich
Authors: Adamska Anna
Published: April 2020

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Kościół polski w Budapeszcie "Małym Rapperswil"
Authors: Józefowicz Maciej
Published: April 2020

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ANALISIS PENGARUH HARGA DAN KUALITAS PRODUK TERHADAP MINAT BELI SMARTPHONE ADVAN MELALUI CITRA MEREK SEBAGAI VARIABEL INTERVENING DI WILAYAH YOGYAKARTA
Authors: Prastiyani Mbajeng , Suhartono Suhartono
Published: April 2020

This study aims to determine (1) the effect of price and product quality on Advan smartphone brand image, (2) the effect of price and product quality on Advan smartphone buying interest, (3) the effect of brand image on buying interest, (4) influence of price and quality products for the interest in buying Advan smartphone through brand image as an intervening variable in the region of Yogyakarta. The population of this study is consumers or who have used or learned about Advan smartphones. Sampling is done using purposive sampling. The research data was obtained by collecting questionnaires about price, product quality, brand image and buying interest for 200 respondents. The analysis technique used for this research is Intervening Variable Regression Analysis with Path Analysis using IBM SPSS Statistics 20. These results indicate that (1) prices do not have a significant effect on brand image, (2) product quality has a significant and positive effect on brand image, (3) price is not significantly related to buying interest, (4) product quality has a significant and positive influence on interest buy, (5) brand image significant and positive influence on buying interest, (6) brand image does not intervene in the interest of prices against buying interest, (7) brand image is interfered with the influence of product quality on buying interest.
简述人工影响天气技术
Authors: 张 晓辉 , 徐 庆喆
Published: April 2020

由于全球气候变暖,干旱,冰雹等气象灾害的频发出现,水资源短缺频发出现,人工影响天气已经成为全国各个市县局的常规业务,并且我国是世界上易灾、多灾与灾情严重的国家之一。所以了解人工影响天气原理,方法以及与国外的差距更有利于我国找到自身的不足,从而经一步利用人工影响天气减轻气象灾害。本文介绍了人工影响天气科学技术的原理,方法,实际应用,我国与国外的差距以及几点建议。
农田水利节水灌溉中滴灌技术的应用分析
Authors: 李 银
Published: April 2020

在节水灌溉技术中包含许多技术类型,像滴灌技术就是其中一种,它能有效解决水资源所存在的固有污染问题,特别是在淡水资源相对匮乏的工程项目中具有较高实用性,有效降低农业作业风险。另外,滴灌技术也能为农田水利工程克服地区客观因素影响,强化农田中农作物的抗旱能力,保证农作物灌溉水源始终充沛,为我国三农建设提供了强有力的保障。
农艺节水技术在农艺发展中的应用探究
Authors: 邱 萍
Published: April 2020

农艺节水技术在农艺发展中占据着重要位置,良好的节水技术能够确保我国水资源得到合理使用,避免出现水资源浪费的现象。因此,现阶段农艺发展中,农艺节水技术的良好应用具有十分重要的现实意义。我国的农艺节水技术刚刚起步,与先进国家还存在一些差距,虽然有了一定的技术经验,但在社会的发展中很难满足实际需求。所以,相关人员要加大对农艺节水技术的研究力度,使其能够得到广泛应用,促进农艺节水技术的进一步发展。
International cooperation between Brazil and Germany in Materials Science
Authors: Pfleging Wilhelm , Bock Eduardo
Published: April 2020

This editorial begins with extreme joy inaugurating the fourth volume of The Academic Society Journal not only for another year of existence, but also for characterizing a project of scientific dissemination being carried out and expanded each year. A fact that helps us to make evident the expansion of our society is the participation of researchers from countries that are far beyond Mercosur, such as Germany. At the last Conference of Engineering and Applied Sciences at the Three Frontiers MEC3F in 2019, which is held annually in the city of Foz do Iguaçu in Brazil, we attended discussions and forums related to materials and energy. In fact, the opening lecture "Electrode materials for lithium-ion batteries and laser processing" was given by our newest member of the editorial board of TASJ, Dr. Wihelm Pfleging. From the topics of Materials and Energy, the idea of developing subtractive and additive processes for the manufacture of batteries for medical equipment arose. With IFSP expertise in implantable devices and KIT in engineering and materials science, a long-term research cooperation in the field of energy storage materials adapted to bio-science was initiated. The objective is the use advanced electrode architectures and unique laser technologies for the development of more reliable, more durable batteries with significantly improved performance and longer lifetime. As a result, it is expected that in frame of a concept of sophisticated applications several medical devices – especially those with small footprint - will be able to use this next generation type of lithium-ion batteries. The potential for cooperation between the two countries, not only technological, but also in the training of people and in scientific dissemination, expands for future conferences and in this journal. We hope that the already consolidated Latin American participation of SLABO, with the constant presence of Itaipu Binacional in the organization of MEC3F with Argentine, Paraguayan and Brazilian researchers, will help to receive an enthusiastic group of German scientists at the upcoming events. May the “three borders” be a symbol of integration between sister nations, always welcoming everyone with open arms! We believe ideas should always be freely encouraged. We invite you to be part of our history. Our doors are open!
Study of a measuring and attenuation device prototype for essential and Parkinsonian tremors
Authors: Molina TSS , Castilho MS , Tsurumaki AH , Del Monaco Adriana DM
Published: April 2020

People who suffer from Essential Tremor or Parkinson's disease have trouble performing daily tasks such as eating, drinking and writing, leading to weight loss and even depression in some situations. It causes social embarrassment and functional incapacity, being responsible for about 25% of the changes of work or distance of the same. Treatment of tremors it is ineffective in about 25% of patients has side effects with the use of drugs and can cause hemorrhages and psychiatric manifestations in neural treatments. In order to bring new therapeutic options to control tremor, the present work aims to develop a non-invasive tremor attenuation device with the use of inertia flywheels. An experimental model was developed to simulate the tremors composed of servo motor and two inertial wheels and, with the use of inertial sensor and Arduino, analyzes of tremor behavior were done according to the inertia flywheel. The acquired data showed that the tremor was attenuated by about 28%. Lastly, a printed glove was developed in 3D printer, in which two flywheels were coupled, being a feasible alternative in the non-invasive treatment of tremors.
Síntese e caracterização do compósito zircônia/alumina para aplicação em
próteses
Authors: Gomide Viviane S
Published: April 2020

The need to repair or reconstruct bone tissues drives the development to biomedical applications by providing better life quality for people who need to resort to the replacement of tissues. For the selection of the material to be used, it is necessary to evaluate some fundamental factors such as: mechanical resistance and biocompatibility. Often, only one material does not have all the desired properties, requiring the formation of composites in order to guarantee the appropriate characteristics. The present work presents the mechanical properties of a ceramic zirconia/alumina composite developed for application as prostheses; cytotoxicity in human fibroblasts was tested in vitro. Compressive strength, microhardness, fracture toughness and particle size measurements were also performed.
The use of titanium alloy (F136) in surgical implants
Authors: Silva Jr Wilson Carlos , Silva Mauricio Pereira , Costa Rogério Homem , Souza Caique Movio
Published: April 2020

Titanium has been widely used in the area of biomaterials, the segment of manufacture of products for rehabilitation goes through a constant evolution, because each year new techniques appear, new technologies that help in the development of biomaterials, these evolutions are mostly aimed at cost reduction, osseointegration, biocompatibility among other factors. The objective of this article is to carry out the analysis of the fixation screws of the femur prosthesis and hip prostheses, manufactured in titanium alloy ASTM 136. The use of titanium alloys in orthopedic, dental and aeronautical applications has increased in recent decades. The use of titanium in biomaterials is due to its singularities in the physiological environment and its favorable chemical and mechanical properties such as good resistance to corrosion, high degree of biocompatibility and low modulus of elasticity. For the fixation screws, analyzes of their resistance to torsion and the fracture surfaces of the tested samples were performed, for the analyzes were used Scanning Electron Microscopy (SEM) and semiquantitative analysis of the chemical elements by X-ray spectroscopy by dispersion in (EDS) and for the hip prosthesis, the fatigue test will be carried out according to ABNT NBR 7206-6. These tests aim to verify if both are able to be sold on the national market. With the tests completed, the results were compared with the standards in force. The results of the torsion tests are presented, where all samples met the quality requirements and the hip prostheses showed a stable behavior during the 10.000.000 million cycles, without failures during or after the tests.
Hipoacusia neurosensorial, ataxia cerebelosa y piramidalismo: una tríada sugerente de siderosis superficial del sistema nervioso central
Authors: Díaz-Real Jaime , Fernández-Soto Julia , Aguayo-Canela Mariano
Published: April 2020

La siderosis superficial del sistema nervioso central es una patología infradiagnosticada. Muy probablemente, se produce por un sangrado persistente que provoca el depósito de hemosiderina en las estructuras nerviosas. Esto genera daño oxidativo a nivel glial, provocando la disfunción progresiva del sistema nervioso central. Sus formas de manifestación dependen de las áreas afectadas. El diagnóstico y la caracterización de la siderosis superficial se llevan a cabo, principalmente, mediante resonancia magnética cerebral y de médula espinal. Su abordaje es, en la mayoría de los casos, quirúrgico, sin que aporte un beneficio significativo. En la actualidad, no se dispone de un tratamiento que consiga modificar de forma eficaz el curso natural de la enfermedad.
Comparative analysis of targeted next-generation sequencing panels for the detection of gene mutations in chronic lymphocytic leukemia: an ERIC multi-center study
Authors: Lesley-Ann Sutton  , Viktor Ljungström  , Anna Enjuanes  , Diego Cortese  , Aron Skaftason  , Eugen Tausch  , Katerina Stano Kozubik  , Ferran Nadeu  , Marine Armand  , Jikta Malcikova  , Tatjana Pandzic  , Jade Forster  , Zadie Davis  , David Oscier  , Davide Rossi  , Paolo Ghia  , Jonathan C. Strefford  , Sarka Pospisilova  , Stephan Stilgenbauer  , Frederic Davi  , Elias Campo  , Kostas Stamatopoulos  , Richard Rosenquist  , European Research Initiative on CLL (ERIC)
Published: April 2020

Next-generation sequencing (NGS) has transitioned from research to clinical routine, yet the comparability of different technologies for mutation profiling remains an open question. We performed a European multicenter (n=6) evaluation of three amplicon-based NGS assays targeting 11 genes recurrently mutated in chronic lymphocytic leukemia. Each assay was assessed by two centers using 48 pre-characterized chronic lymphocytic leukemia samples; libraries were sequenced on the Illumina MiSeq instrument and bioinformatics analyses were centralized. Across all centers the median percentage of target reads ≥100x ranged from 94.2-99.8%. To rule out assay-specific technical variability, we first assessed variant calling at the individual assay level i.e. pairwise analysis of variants detected amongst partner centers. After filtering for variants present in the paired normal sample and removal of PCR/sequencing artefacts, the panels achieved 96.2% (Multiplicom), 97.7% (TruSeq) and 90% (HaloPlex) concordance at a VAF >0.5%. Reproducibility was assessed by looking at the inter-laboratory variation in detecting mutations and 107/115 (93% concordance) of mutations were detected by all 6 centers, while the remaining 8/115 (7%) variants were undetected by a single center and 6/8 of these variants concerned minor subclonal mutations (VAF <5%). We sought to investigate low-frequency mutations further by using a high-sensitivity assay containing unique molecular identifiers, which confirmed the presence of several minor subclonal mutations. Thus, while amplicon-based approaches can be adopted for somatic mutation detection with VAFs >5%, after rigorous validation, the use of unique molecular identifiers may be necessary to reach a higher sensitivity and ensure consistent and accurate detection of low-frequency variants.
Strategies for learning and academic achievement of secondary school students
Authors: Ahmed Oli , Khanam Mahfuza
Published: April 2020

Relationship between learning strategies and academic achievement was studied. In addition, it explored whether there were any differences between high and low achievers, males and females, and science and humanities’ students in using learning strategies. Findings revealed that academic achievement was significantly correlated with academic self‐efficacy, organization, and metacognitive self‐regulation. High achievers differed from low achievers in using organization, and meta‐cognitive self‐regulation. In control of learning beliefs and rehearsal, significant gender differences exited. Science group students significantly differed from humanities students in academic self‐efficacy, elaboration, and critical thinking.

Dhaka Univ. J. Biol. Sci. 24(1): 91-97, 2015 (January)
Grain spotting of rice caused by Pestalotiopsis guepinii (Desm.) Stay – A new record
Authors: Chowdhury Pranami , Shamsi Shamim , Bashar MA
Published: April 2020

Abstract not available

Dhaka Univ. J. Biol. Sci. 24(1): 103-106, 2015 (January)
Cognitive distortion among psychiatric patients
Authors: Siddika Ummey Saima , Chowdhury Kamal Uddin Ahmed
Published: April 2020

The aim of the current study was to identify the level of cognitive distortions among the patients suffering from psychiatric disorder according to age, gender and educational qualification. Cross sectional survey method was followed, using Bangladesh Cognitive Distortion Scale (BCDS, Siddika and Chowdhury, 2013) on 239 patients, suffering from anxiety and depression for assessing cognitive distortion. Among the psychiatric patients 86.2% respondents found to have clinical level of cognitive distortion. Analysis revealed that there is no significant difference in cognitive distortion according to different age groups and gender. But regarding educational qualification, there is significant difference of total score of Bangladesh cognitive distortion scale (p > 0.01) and it is higher among low literate respondents (non institutional to class 5) than high literate.

Dhaka Univ. J. Biol. Sci. 24(2): 191-198, 2015 (July)
Number of bystander, time pressure and gender effects on altruistic behavior
Authors: Samia Shafrina , Khanam Mahfuza
Published: April 2020

The effects of number of bystander, time pressure and gender on showing altruistic behavior was investigated. This covered three hypotheses that: (i) individual would exhibit more altruistic behavior to the victim when they are alone in a situation than being in a group, (ii) time pressure would inhibit altruistic behavior and (iii) there would be no differences between males and females in case of showing altruistic behavior. A total of 40 individuals (20 males and 20 females) and another 20 groups of strangers were the sample of this study and three field experiments were done to examine the hypotheses. Findings revealed that increasing number of bystanders decreased the probability of showing altruistic behavior, under time pressure people less likely to help others and no significant difference was found between males and females in showing altruistic behaviour. The result of the present study can provide a greater understanding of why people fail to do what is morally expected and thus lead to a greater tolerance and understanding of others.

Dhaka Univ. J. Biol. Sci. 27(1): 1-7, 2018 (January)
Exploring psychological correlates of peers and fathers of drug addict adolescents
Authors: Begum Farjana , Mahmood Sheikh Iqbal
Published: April 2020

Drug dependency is clearly a problem for almost every country and Bangladesh is no exception. As the parents and peers are the closest persons of an adolescent whether addict or non-addict, so the present study was conducted with the following objectives: (a) To explore the peer relationship of the drug addict adolescents, (b) to investigate the parenting style of the fathers of the drug users and (c) to find the economic status of adolescent drug users. 60 male drug addict adolescents from different areas of Dhaka city were selected following snow ball technique. For the assessment of peer relation a scale drug and alcohol use-High risk behavior by Church (1994) was translated into Bangla and for assessing parenting style of the fathers of adolescents drug addicts Parental Acceptance/Rejection Questionnaire Child (PARQ), Short version of Rohner (2004b) was translated into Bangla and were used. For the analysis of the obtained data frequency count and percentage of responses made by the drug addict adolescent about their peers and fathers were calculated. The results show that the adolescent drug addict has very close relation with their peer as the type of drugs, frequency of taking drug and even factors determining their being drug addict are almost same. Results further show that parenting style of the fathers of the drug addict adolescent is rejective. Most of the adolescent get coldness or lack of affection, hostility or aggression, indifference or neglect, undifferentiated rejection but little warmth from their fathers. Finally, addiction is found to spread over access all economic status from almost lowest to highest in the present study.

Dhaka Univ. J. Biol. Sci. 28(1): 9-20, 2019 (January)
Phytoplankton in relation to water quality of Tanguar Haor ecosystem, Bangladesh: I. Rauar station
Authors: Bhuiyan Mohammad Azmal Hossain , Islam SAM Shariar , Kowser Abu , Islam Md Rasikul , Kakoly Shahina Akter , Asaduzzaman Khandoker , Khondker Moniruzzaman
Published: April 2020

The water quality at Rauar station of Tanguar Haor, Sunamganj was assessed studying phytoplankton and associated environmental variables. The environmental variables were monitored over a period of one year, collecting samples at two months interval between March, 2017 and March, 2018. Air temperature, rainfall, and humidity ranged from 22.6 - 32.1°C, 48 - 76% and 8 - 930 mm, respectively. Air temperature showed a direct relationship with water temperature which varied from 22.4 - 31.0°C during the study period. The water transparency remained relatively constant throughout the year having a mean Secchi depth (Zs) value of 2.48 m. Total dissolved solids (TDS), conductivity, and pH of the water ranged from 51 - 85 mg/l, 60 - 110 μS/cm, and 7.2 - 9.7, respectively. In December, because of a temperature fall, the dissolved oxygen (DO) concentration of the water reached its maximum value of 6.09 mg/l. In the rest of the period, the concentration remained between 2.44 and 4.80 mg/l. The value of alkalinity ranged from 0.43 - 1.35 meq/l. Among the nutrients, soluble reactive phosphorus (SRP), soluble reactive silicate (SRS), and NO3-N ranged from 5.43 - 36.43 μg/l, 4 - 14.58 mg/l, and 0.06 - 0.31 mg/l, respectively. The concentration of NH4+ ranged from 238 - 1230 μg/l. The highest concentrations (905 and 1230 μg/l) occurred between September and December, 2017. This might be attributed to the higher density of migratory birds during that period. The phytoplanktonic biomass expressed as chlorophyll-a (Chl-a) ranged from 1.35 - 8.45 μg/l while its degraded product phaeophytin concentration ranged from 0.08 - 3.5 μg/l. The standing crop of phytoplankton ranged from 397 - 2480 × 103 individuals/l of haor water exhibiting its maximum abundance in September. This parameter showed a highly significant positive correlation with SRP. From the correlation analysis, the degradation of chl-a to phaeophytin was found to be temperature dependent. Considering the different physicochemical and biological water quality data, it could be said that the Tanguar Haor is still free from organic pollution. However, the range of soluble reactive phosphorus data (5.43 - 36.43 μg/l) show that the Haor has been passing a meso-eutrophic state.

Dhaka Univ. J. Biol. Sci. 28(2): 131-138, 2019 (July)
Effects of cadmium on the anatomical structures of vegetative organs of chickpea (Cicer arientinum L.)
Authors: Liza Saima Jahan , Shethi Kishwar Jahan , Rashid Parveen
Published: April 2020

The effects of cadmium on the anatomical structures of different vegetative parts, namely root, stem and leaf of chickpea, Cicer arientinum L. was studied. Four different concentrations of CdCl2 e.g. 250, 500, 750 and 1000 μM were considered as treatments alongside non treated samples (control). In case of root anatomy decrease of root diameter, root cortex area, thick walled endodermal layer and reduced number of metaxylem vessels were observed compared to control. Similarly, stem diameter, cortical area, size and number of xylem vessels were decreased in Cd treated stem. However, large and increased number of trichomes had been found in Cd treated stem samples with deposition of phenolic compounds in vessels with increasing concentration of Cd. Considerable less toxic effects were observed in leaf anatomy except decrease in leaf thickness, reduced vascular area and closure of stomata in comparison to control sample. All such plant anatomical alterations indicated adverse effects as well as tolerance of chickpea up to certain concentrations of heavy metal to cope up with the changing environment.

Dhaka Univ. J. Biol. Sci. 29(1): 45-52, 2020 (January)
Levocarnitine in the management of fatigue in levothyroxine treated hypothyroid patients
Authors: Akhter Farjana , Dewan Zesmin Fauzia , Hasnat MA , Akhter Selina
Published: April 2020

Background and objectives: Hypothyroid patients often complain of fatigue even after effective treatment. Thyroid hormone plays an important role in carnitine-dependent long chain fatty acid transport for oxidation and ultimate formation of ATP. Deficiency of L-carnitine has been presumed to disrupt ATP formation leading to fatigue. Present study was designed to assess the role of L-carnitine as a supplement to manage the fatigue state of hypothyroid patients.

Methods: Hypothyroid patients receiving levothyroxine (L-T4) and suffering from fatigue symptoms were enrolled. Patients were randomly divided into Group A (Control group, n=35) and Group B (Experimental group, n=36). Patients of Group A were treated with L-T4 only and Group B patients received L-carnitine 2 g/day in addition to L-T4 therapy for 8 weeks. Fatigue was assessed by fatigue severity scale (FSS), physical fatigue (PF) and mental fatigue (MF) scores. Data regarding fatigue status, serum thyroid stimulating hormone (TSH) and free thyroxine (FT4) were collected at the beginning and after 8 weeks of intervention.

Result: The mean age of Group A and Group B patients was 33.5±8.1 and 35.4±7.5 years respectively (p>0.05); and the mean body weight was 61.5±9.6 kg and 62.5±8.2 kg respectively (p>0.05). The mean baseline values of different fatigue scores and the serum TSH and FT4 levels of patients of two groups were identical and not significantly different (p>0.05). In Group-A patients, the mean MF score improved significantly (5.2±1.5 vs 4.6±1.4; p=0.01) from baseline score after 8 weeks while the FSS and PF scores did not improve significantly (p>0.05). In Group-B patients, the mean FSS, PF and MF scores improved significantly (p<0.01) from baseline score after 8 weeks of treatment with L-carnitine along with L-LT4 treatment. FSS, PF and MF scores of Group-B patients reduced significantly (p<0.01) compared to Group-A patients after 8 weeks of treatment. FSS, PF and MF scores improved in 88.9%, 77.8% and 47.2% cases respectively in Group-B compared to 20%, 14.3% and 5.7% cases in Group-A. L-carnitine was well tolerated and no severe adverse event was recorded.

Conclusion: The results suggest that, administration of L-carnitine along with L-T4 in hypothyroid patients significantly reduced physical and mental fatigue.

Ibrahim Med. Coll. J. 2019; 13(2): 45-52
Postnatal care services and factors affecting its utilization in slum areas of Dhaka city
Authors: Nili Nilufar Yeasmin
Published: April 2020

Background and objectives: Maternal as well as infant mortality is high in Bangladesh. Utilization of post natal care (PNC) services is important to reduce maternal and infant mortality. Considering this matter, this study attempted to find out the level of PNC utilization by women living in slum areas of Dhaka city as well as to identify the factors associated with the utilization of PNC services.

Methods: This study was conducted in Khilgaon and Rampura slums of Dhaka city. In each slum, women aged between 15-49 years who had given birth to at least one child were enrolled in the study by random sampling technique. Participants were interviewed with a semi-structured questionnaire which included information on socio-economic, demographic, cultural status as well as information on PNC service utilization.

Results: Out of total 360 enrolled women in both slums, 58.6% utilized PNC services. The rate of utilization of PNC services was 55% and 62.2% in Khilgaon and Rampura slum respectively. Compared to 40-49 years age group, significantly (p<0.01) higher percentage of women aged <20, 20-29 and 30-39 years utilized PNC services (69.6%, 67.0% and 56.4% respectively). The significant associates of receiver of PNC were respondent’s education, number of antenatal care (ANC) received, level of tetanus vaccination, place of delivery, distance between home and clinic, mass media exposure, male participation and autonomy.

Conclusion: Local socioeconomic and cultural aspects should be considered while planning intervention program to improve the utilization of PNC service.

Ibrahim Med. Coll. J. 2019; 13(2): 53-58
Impacts of Rice Hull and Pistia on the Vegetative Growth of Rice and Physico-Chemical Properties of Saline Soil Under Variable Moistures
Authors: Hossain Mohammed Sadid , Khan Md Harunor Rashid , Akter Suma , Saha Mithun Kumar , Farzana Fariha
Published: April 2020

A pot experiment was conducted using BRRI Hybrid Dhan-6 variety of rice at the premises of the Department of Soil, Water and Environment, University of Dhaka, Bangladesh to evaluate the capabilities of rice hull (RH: 0, 2, 4 t ha-1) and pistia (PT: 0, 400, 800 kg ha-1) for the improvement of growth performances of rice grown under field moist (FM: 70% moisture) and 2 - 5 cm standing water (SW) conditions in saline soil. Among the vegetative growth, the plant heights, number of productive tillers, fresh shoot and shoot dry matter weights were found to be increased significantly (p ≤ 0.05) with the increased rates of rice hull and pistia treatments, and the increments were more striking by their combinations in most of the cases under both FM and SW conditions. The tallest plant heights (112 cm in FM and 120 cm in SW) and the maximum number of productive tillers (13 in FM and 16 in SW) were recorded at maturity stage of rice in the T8 (RH4PT8) treatment where rice hull and pistia were applied at the highest (RH: 4 t ha-1, PT: 800 kg ha-1) dosages. Based on superiority in both the plant heights and number of tillers, the amendments can be arranged in the sequence of T8 > T7> T6> T5> T2> T3>T4> T0 > T1. The analysis of variance on these data indicated that in the standing water condition, fresh shoot and shoot dry matter weights of rice plants were found to be increased significantly (p ≤ 0.05) by the application of the higher rates of the treatments and their combinations. Thus, the application of indigenous organic amendments such as, rice hull and pistia showed significant contribution for the growth performances of rice under variable moistures but further researches are needed under variable soil and climatic conditions to ensure food security under saline soil.

Asiat. Soc. Bangladesh, Sci. 44(2): 173-183, December 2018
Getting to the bottom of bycatch: a GIS-based toolbox to assess the risk of marine mammal bycatch
Authors: Hines E , Ponnampalam LS , Junchompoo C , Peter C , Vu L , Huynh T , Caillat M , Johnson AF , Minton G , Lewison RL , Verutes GM
Published: April 2020

Marine mammal bycatch poses a particular challenge in developing countries, where data to document bycatch and its effects are often lacking. Using the Bycatch Risk Assessment (ByRA) toolkit, based on InVEST open-source models, we chose 4 field sites in Southeast Asia with varying amounts of data on marine mammals and fishing occurrence: Trat province in the eastern Gulf of Thailand, the Sibu-Tinggi Islands and Kuching Bay, Malaysia, and Kien Giang Biosphere Reserve in southwestern Vietnam. These field sites have similar species of coastal marine mammals, small-scale and commercial fisheries, and support for research from universities and/or management. In Thailand and Kuching, results showed changing patterns of fishing and Irrawaddy dolphin Orcaella brevirostris habitat use across seasons, showing how bycatch risk could change throughout the year. Risk maps for dugongs Dugong dugon in peninsular Malaysia highlighted patterns of bycatch risk concentrated around a mainland fishing pier, and revealed high risk in a northern subregion. In Vietnam, first maps of bycatch risk for the Irrawaddy dolphin showed the highest risk driven by intensive use of gillnets and trawling gear. ByRA pinpointed areas of spatial and seasonal bycatch exposure, and estimated the consequence of bycatch on local species, providing managers with critical information on where to focus bycatch mitigation and meet new global standards for US Marine Mammal Protection Act and other international regulation (e.g. Official Journal of the European Union 2019; Regulation 2019/1241) compliance. The toolbox, a transferable open-source tool, can be used to guide fisheries management, marine mammal conservation, spatial planning, and further research.
A method for the collection of early-stage sea turtle embryos
Authors: Gárriz A , Williamson SA , Evans RG , Reina RD
Published: April 2020

Early-stage turtle embryos, immediately after oviposition, are very small (<5 mm diameter), hindering research on the initial period of embryonic development. For example, assessing whether turtle eggs had been fertilized and contained a viable embryo at oviposition, especially under field conditions, is complicated by the microscopic size of embryos that may have died at an early stage of development. Further, little is known about the molecular pathways that promote and regulate early developmental processes in turtles, such as pre-ovipositional embryonic arrest. To enable further investigation of the processes critical to early embryonic development in turtle species, a reliable method is required for extraction of early-stage embryos from the egg. Therefore, our aim was to develop a novel and reproducible method for extracting early-stage sea turtle embryos. Herein, we describe the technique for extracting Chelonia mydas embryos before and after white spot formation. Once the embryos were collected, the total RNA of 10 embryos was extracted to validate the method. The total RNA concentration was above 5 ng µl-1 and the RNA integrity number varied between 7.0 and 10.0, which is considered acceptable for further RNA-sequencing analyses. This extraction technique could be employed when investigating fertilization rates of turtle nests and for further investigation of the molecular biology of embryonic development in turtles. Furthermore, the technique should be adaptable to other turtle species or any oviparous species with similar eggs.
Posthuman Methodologies for Post-Industrial Cities: A Situated, Speculative, and Somatechnic Venture
Authors: Taylor Carol A. , Ulmer Jasmine B.
Published: April 2020

This article proposes a posthuman / materialist somatechnics approach which encourages a more nuanced, ethical, and embodied attentiveness to how humans, nature, and materialities are not separate, but actively emerge through entanglements and in co-constitutive relation with one another. Such an attentiveness recognises that we are shaped by the places in which we live and by the many others – human and nonhuman – with whom we live. It also urges the need to reshape research methodologies. To illuminate how we might more closely attend to the places in which we live, learn, teach, inquire, and research, this article offers a series of situated, speculative, and somatechnic engagements arising from our recent ventures in two separate post-industrial cities. The article is framed as a mode of writing otherwise – as a series of experimental elemental essays and the theory-practice diffractive musings they have given rise to. Taken together, the essays and musings aim to contest deficit discourses of post-industrial cities and the multiple bodies who / which inhabit them. The posthuman situated and speculative somatechnics approach we propose offers insights into unexpected and surprising new relations. We hope the elemental essays and musings which follow invite readers to take up the ‘practice of the pause’ in their own places and spaces.
Queering the Data: The Somatechnics of English Early Childhood Education and Care Teachers
Authors: Fairchild Nikki
Published: April 2020

Education has increasingly been consumed by neoliberal expectations that result in the need for data to be collected to justify regulative, pedagogical, curricular, and teaching practices. The marketisation of higher education requires more quantitative measurement of student attainment and progress which impacts on pedagogy and provision. Working with Karen Barad's theorisations of spacetimemattering, agential cuts, intra-action, and diffractive analysis, I draw on research with Early Childhood Education and Care (ECEC) teachers who were working and concurrently studying on a degree programme. Empirical data was generated from a focus group discussing the influences of data recording software on the teachers and their professional practice, the devices used as part of the recording process, and the curricular expectations during children's assessment. Scholars have argued that the need to ensure children meet developmentally appropriate milestones in ECEC can lead to performative, technicist teacher practices driven by data and that these practices may result in datafication and ‘dividual’ subjectivities ( Deleuze 1992 ). Entangling with material-discursive productions between ECEC teachers and ‘data’ provides a new contribution to understanding the influence of other-than-human bodies on the process of dividualisation and its impact on professional practice. Although focussing on ECEC teachers and their assessment practices, the outcomes of the analysis are connected to higher education, which is facing similar pressures for student progress. In line with the theme of this issue of Somatechnics, I discuss how putting to work Barad's agential realism can articulate and rethink both human and other-than-human matterings by revealing how some ‘agential cuts’ reinforce deficit dividual discourse. In turn, this can help us move beyond datafication and dividual practice.