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26 result(s) for "Jankauskas, R"
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Genetic Discontinuity Between Local Hunter-Gatherers and Central Europe's First Farmers
After the domestication of animals and crops in the Near East some 11,000 years ago, farming had reached much of central Europe by 7500 years before the present. The extent to which these early European farmers were immigrants or descendants of resident hunter-gatherers who had adopted farming has been widely debated. We compared new mitochondrial DNA (mtDNA) sequences from late European hunter-gatherer skeletons with those from early farmers and from modern Europeans. We find large genetic differences between all three groups that cannot be explained by population continuity alone. Most (82%) of the ancient hunter-gatherers share mtDNA types that are relatively rare in central Europeans today. Together, these analyses provide persuasive evidence that the first farmers were not the descendants of local hunter-gatherers but immigrated into central Europe at the onset of the Neolithic.
Study on the performance of different craniofacial superimposition approaches (II): Best practices proposal
•The current manuscript can be considered the first standard in the field.•This first study facilitated an international agreement on different aspects of CFS.•The proposed best practices will help practitioners to make a decision on the applicability of CFS in daily forensic caseworks. Craniofacial superimposition, although existing for one century, is still a controversial technique within the scientific community. Objective and unbiased validation studies over a significant number of cases are required to establish a more solid picture on the reliability. However, there is lack of protocols and standards in the application of the technique leading to contradictory information concerning reliability. Instead of following a uniform methodology, every expert tends to apply his own approach to the problem, based on the available technology and deep knowledge on human craniofacial anatomy, soft tissues, and their relationships. The aim of this study was to assess the reliability of different craniofacial superimposition methodologies and the corresponding technical approaches to this type of identification. With all the data generated, some of the most representative experts in craniofacial identification joined in a discussion intended to identify and agree on the most important issues that have to be considered to properly employ the craniofacial superimposition technique. As a consequence, the consortium has produced the current manuscript, which can be considered the first standard in the field; including good and bad practices, sources of error and uncertainties, technological requirements and desirable features, and finally a common scale for the craniofacial matching evaluation. Such a document is intended to be part of a more complete framework for craniofacial superimposition, to be developed during the FP7-founded project MEPROCS, which will favour and standardize its proper application.
Study on the performance of different craniofacial superimposition approaches (I)
•A multiple-lab study on CFS has been carried out for the first time.•Each participant employed her/his particular methodology and technological means.•Provide important insights to better understand the most convenient characteristics. As part of the scientific tasks coordinated throughout The ‘New Methodologies and Protocols of Forensic Identification by Craniofacial Superimposition (MEPROCS)’ project, the current study aims to analyse the performance of a diverse set of CFS methodologies and the corresponding technical approaches when dealing with a common dataset of real-world cases. Thus, a multiple-lab study on craniofacial superimposition has been carried out for the first time. In particular, 26 participants from 17 different institutions in 13 countries were asked to deal with 14 identification scenarios, some of them involving the comparison of multiple candidates and unknown skulls. In total, 60 craniofacial superimposition problems divided in two set of females and males. Each participant follow her/his own methodology and employed her/his particular technological means. For each single case they were asked to report the final identification decision (either positive or negative) along with the rationale supporting the decision and at least one image illustrating the overlay/superimposition outcome. This study is expected to provide important insights to better understand the most convenient characteristics of every method included in this study.
Occupational characteristics of respiratory cancer patients exposed to asbestos in Lithuania
Objective: To assess characteristics of asbestos exposure in respiratory cancer patients in Lithuania. Methods. Information on occupational exposure to asbestos was collected by personal interviews and occupational characteristics were evaluated among 183 lung cancer and mesothelioma patients with cumulative asbestos exposure ≥0.01 fibre years hospitalized at the Institute of Oncology, Vilnius. Additionally, some results of workplace air measurements were reviewed. Results. Cases with estimated cumulative exposure ≥5 fibre years had worked mainly in the construction industry (49%), installation and maintenance (13%), foundry and metal products manufacturing (6%), heating trades and boilerhouses (6%) as fitters/maintenance technicians, construction workers, welders, electricians or foremen. Typical asbestos materials used by the patients were asbestos powder, asbestos cement sheets and pipes, asbestos cord, brake and clutch linings. Patients were exposed to asbestos when insulating boilers, furnaces, pipes in power stations, industrial facilities, ships, locomotives, buildings, while covering and repairing roofs, at the asbestos cement plant or unloading asbestos products. Most patients with estimated cumulative exposure of ≥0.01-4.9 fibre years worked as lorry, bus or tractor drivers and motor vehicle mechanics. In 2002-2007 workplace air asbestos concentrations exceeded the limit value of 0.1 f/cm3 in 11 samples out of 208 measurements. Conclusion. The results of this study indicate that since the 1960s occupational exposure to chrysotile asbestos was extensive in Lithuania.
Evidence for Louse-Transmitted Diseases in Soldiers of Napoleon’s Grand Army in Vilnius
BackgroundMany soldiers in Napoleon’s Grand Army died of infectious diseases during its retreat from Russia. Because soldiers were commonly infested with body lice, it has been speculated that louse-borne infectious diseases, such as epidemic typhus (caused by Rickettsia prowazekii), were common MethodsWe investigated this possibility during recent excavations of a mass grave of Napoleon’s soldiers in Vilnius, Lithuania. Segments of 5 body lice, identified morphologically and by polymerase chain reaction (PCR) amplification and sequencing, were found in earth from the grave that also contained fragments of soldiers’ uniforms ResultsDNA of Bartonella quintana (the agent of trench fever) was identified by PCR and sequencing in 3 of the lice. Similarly, PCR and sequencing of dental pulp from the remains of 35 soldiers revealed DNA of B. quintana in 7 soldiers and DNA of R. prowazekii in 3 other soldiers ConclusionsOur results show that louse-borne infectious diseases affected nearly one-third of Napoleon’s soldiers buried in Vilnius and indicate that these diseases might have been a major factor in the French retreat from Russia
Implementation of Physical Activity in the Curricula of Medical Schools and Healthcare Professions Across Europe: The VANGUARD Project Study Protocol
The 2018 published World Health Organisation (WHO) Europe physical activity factsheet reports, specify agreed targets for physical activity and articulate the need to improve the education of medical doctors and healthcare practitioners in order to increase physical activity and reduce sedentary time in people at risk and/or living with Noncommunicable Diseases (NCDs). Given the dearth of relevant initiatives and the continuous need to increase physical activity participation towards better health management of NCDs, the aim of this study is to embed physical activity in the undergraduate curricula of future frontline healthcare professionals (medical doctors and allied health professions) in European countries. The irtual dvice, urturing, uidance on niversal ction, esearch and evelopment for physical activity and sport engagement (VANGUARD) project consists of a collaborative partnership Consortium between six European Universities, WHO Europe and Ministry representatives that has been developed to implement physical activity in the curricula of medical schools and healthcare professions. The methodology of the VANGUARD project is informed by the WHO implementation guidance and the Reach, Effectiveness, Adoption, Implementation and Maintenance (RE-AIM) framework. Through a carefully planned implementation process and via using established appropriate implementation evaluation tools, the end result of the VANGUARD project will be the a) implementation of a physical activity module in six different European Universities (five medical schools and one physiotherapy department) and b) development of a toolkit/guide, in order to assist other healthcare systems and European Universities to develop relevant grass-root innovations for addressing the decline in physical activity levels.
Paleopathological and molecular evidence of human bone tuberculosis in Iron Age Lithuania
Skeletal remains of two individuals, showing lesions suggestive of bone tuberculosis, from the archaeological sites of Marvele and Sukioniai in Lithuania were analyzed at the DNA level. The diagnosis of bone tuberculosis was confirmed in the remains from Marvele by amplifying a 245-bp fragment of a repetitive insertion element-like sequence (IS 6110) of Mycobacterium tuberculosis DNA. This is direct evidence for the presence of tuberculosis in Lithuania at the beginning of the first millennium AD. The individual from Sukioniai was found to be tuberculosis-negative. No PCR product was obtained for the 245-bp target sequence or for a smaller 123-bp DNA fragment specific for Mycobacterium tuberculosis. However, amplifiable ancient DNA appeared to be present in the examined specimen as was shown by the results of the DNA-based sex identification, which indicated, consistent with the bone morphology, a male individual. Die Skelettüberreste zweier Individuen, die von den archäologischen Gräberfeldern Marvele und Sukioniai in Litauen stammen und für Knochentuberkulose kennzeichnende Läsionen aufweisen, wurden auf DNA-Ebene untersucht. Die Diagnose der Knochentuberkulose wurde im Falle des Skelettmaterials von Marvele durch Amplifizierung eines 245 bp langen DNA-Fragmentes der repetitiven Insertionselement-ähnlichen Sequenz (IS 6110) von Mycobacterium tuberculosis bestätigt. Dieser Befund ist der direkte Nachweis, daß Tuberkulose schon zu Beginn des 1. Jahrtausends AD in Litauen verbreitet war. Das Individuum von Sukioniai stellte sich als TB-negativ heraus. Weder für die 245 bp-Zielsequenz noch für ein kleineres, 123 bp langes DNA-Fragment von Mycobacterium tuberculosis wurde ein PCR-Produkt erhalten. Die Ergebnisse der DNA-gestützten Geschlechtsidentifizierung, welche in Übereinstimmung mit der Knochenmorphologie ein männliches Individuum anzeigten, deuteten jedoch auf das Vorhandensein von amplifizierbarer alter DNA in dem untersuchten Exemplar.
VARIATIONS AND ANOMALIES OF THE VERTEBRAL COLUMN IN LITHUANIAN PALAEOOSTEOLOGICAL SAMPLES
Skeletons of 857 adult individuals from various selected samples were examined and detected variations and anomalies of the vertebral column were classified either as ontogenetic, phylogenetic or of mixed origin. The conclusion was made that ontogenetic and phylogenetic variations are definitely different types of individual variability. While ontogenetic variations (of vertebral bodies and arches) are not interrelated, age, sex and body build dependent peculiarities, phylogenetic ones (border shifts between regions) are significantly correlated, related to the body size, and this explains sex differences in their occurrence.