bluuebunny/crossref_metadata_2025_split huggingface dataset:
Lead poisoning and trace elements in common eiders Somateria mollissima from Finland
Authors: Hollmén Tuula , Franson J. Christian , Poppenga Robert H. , Hario Martti , Kilpi Mikaei 
Published: May 2018

We collected carcasses of 52 common eider Somateria mollissima adults and ducklings and blood samples from 11 nesting eider hens in the Gulf of Finland near Helsinki in 1994, 1995 and 1996. Samples of liver tissue were analysed for arsenic, cadmium, chromium, copper, iron, lead, magnesium, manganese, mercury, molybdenum, selenium and zinc. Blood was analysed for lead, mercury and selenium. Most of the 21 adults examined at necropsy were emaciated with empty gizzards, and no ingested shotgun pellets or other metal were found in any of the birds. Three adult females had a combination of lesions and tissue lead residues characteristic of lead poisoning. Two of these birds had acid‐fast intranuclear inclusion bodies in renal epithelial cells and high concentrations of lead (73.4 and 73.3 ppm; all liver residues reported on dry weight basis) in their livers. The third was emaciated with a liver lead concentration of 47.9 ppm. An adult male had a liver lead concentration of 81.7 ppm, which is consistent with severe clinical poisoning. Two other adults, one male and one female, had liver lead concentrations of 14.2 and 8.03 ppm, respectively. Lead concentrations in the blood of hens ranged from 0.11 to 0.63 ppm wet weight. Selenium residues of ≥60 ppm were found in the livers of five adult males. Selenium concentrations in the blood of hens ranged from 1.18 to 3.39 ppm wet weight. Arsenic concentrations of 27.5–38.5 ppm were detected in the livers of four adult females. Detectable concentrations of selenium, mercury and molybdenum were found more frequently in the livers of adult males arriving on the breeding grounds than in incubating females, while the reverse was true for arsenic, lead and chromium. Mean concentrations of selenium, copper and molybdenum were higher in the livers of arriving males than in the livers of incubating hens, but hens had greater concentrations of iron and magnesium. Concentrations of trace elements were lower in the livers of ducklings than in the livers of adults.
ВПЛИВ ПЕРЕДПОСАДКОВОГО УФ-ОПРОМІНЕННЯ НА РОЗВИТОК І ПРОДУКТИВНІСТЬ КАРТОПЛІ
Authors: Семенов А. О. , Кожушко Г. М. , Сахно Т. В. 
Published: May 2018

В роботі досліджено вплив ультрафіолетового (УФ) опромінення на клубні картоплі перед садінням. Експериментальні дослідження проводилися на середньоранніх сортах картоплі «Утро ранее» та «Рокко» з використанням ультрафіолетових ртутних розрядних ламп низького тиску. Встановлено, що у рослин, які перед садінням були опромінені дозою 120–240 Дж/м2, прискорено утворювалися і розвивалися первинні коріння. Крім того, у рослин посилюється веґетативний ріст та збільшується врожайність.
The effect of ultraviolet (UV) irradiation on potato tubers before planting is investigated. Experimental studies were conducted on medium-early potato varieties «Utro raneie» and «Rocco» using ultraviolet mercury discharge lamps of low pressure. It was established that in plants with irradiated tubers, which before irradiation at a dose of 120–240 J/m2, early roots were formed and developed. In addition, plants increase vegetative growth and increase yields.
Морфологічні та метричні особливості нематод Haemonchus contortus (Rudolphi 1803) Cobb 1898, виділених від овець (Ovis aries Linnaeus, 1758)
Authors: Мельничук В. В. 
Published: May 2018

Представлені результати визначення особливостей будови імагінальних форм нематод виду Haemonchus contortus (Rudolphi 1803) Cobb 1898, що паразитують у домашніх овець (Ovis aries), у кліматичних умовах центрального та південно-східного регіонів України з урахуванням їх морфометричних показників. Встановлено, що видовими ознаками самців H. contortus є особливості у морфологічній будові хвостової бурси, спікул, рулька, статевого конусу, а також їх метричні показники. Самки H. contortus мають специфічну для даного виду варіабельність щодо структури, форми, розмірів та кількості кутикулярних клапанів в області вульви.
The results of the determination of the features of the imaginal forms structure of nematodes of the species Haemonchus contortus (Rudolphi 1803) Cobb 1898, which parasitize in domestic ovaries (Ovis aries), in the climatic conditions of the central and South-Eastern regions of Ukraine are presented, taking into account their morphometric indices. It has been established that the specific features of the H. contortus males are the features of the morphological structure of the caudal bursa, spicules, shank, sexual cone, and their metric indices. The females of H. contortus have a specific for this species variability in the structure, shape, size, and number of cuticular valves in the vulva.
Tecnologias educacionais, imagens e o ensino de ciências: possibilidades, desafios e discussões.
Authors: Frederico Fernando Temporini , Gianotto Dulcineia Ester Pagani 
Published: May 2018

Este trabalho apresenta parte dos resultados de uma pesquisa de doutorado que objetivou verificar as contribuições das imagens para o Ensino de Ciências. Para a exibição de tais imagens, foi necessário a utilização de Tecnologia de Informação e Comunicação disponíveis na escola pública paranaense, tais como o computador e a lousa digital. Deste modo, por meio de uma investigação de natureza qualitativa verificou-se que tais aparatos tecnológicos são recursos capazes de contribuir potencialmente para os processos que envolvem o ensino e a aprendizagem de conceitos de ondulatória e estudo da luz da disciplina curricular física. Neste sentido, acreditamos que é necessário que se criem meios para que estes recursos, tão importantes nos dias atuais, sejam explorados com mais eficiência, dando condições para que a tecnologia possa colaborar com a construção do conhecimento de forma significativa.
A Formação de professores no curso de pedagogia da UFAM para a inclusão de alunos com deficiência
Authors: Lima da Silva Ketlis , Matos Maria Almerinda De Souza 
Published: May 2018

O artigo apresenta dados da pesquisa de Iniciação Científica sobre a formação inicialdos acadêmicos do curso de Pedagogia da Universidade Federal do Amazonas (UFAM), tendo em vista o seu preparo, para a inclusão do aluno com deficiência, nas classes comuns de ensino. A pesquisa se deu através de uma abordagem qualitativa, com método de investigação dialético, sendo realizado por meio de levantamento documental, nacional e internacional (resoluções, diretrizes, portarias, leis, decretos)referentes à inclusão do aluno com deficiência nas classes comuns de ensino. Em seguida, realizou-se a verificação do Projeto Político Pedagógico (PPP) no curso de Pedagogia da UFAM, com objetivo de identificar os subsídios teórico-metodológicos para a formação dos acadêmicos frente ao desafio da inclusão.
Ensino por investigação na realidade da Educação Básica
Authors: Castro Valdeni Liborio 
Published: May 2018

O ensino em nossas escolas está baseado no professor transmissor de conhecimento. Isso não vem ao encontro de uma realidade que está em constante transformação. Nisso, procuramos buscar novos rumos para o ensino. Esta objetiva entender a importância do ensino por pesquisa e verificar como esta perspectiva pode ser desenvolvida na sala de aula. Os autores que nos embasaram foram: Demo (2010, 2011, 2002), Galiazzi (2014) e outros que investigam a temática. Como resultados deste estudo bibliográfico pudemos compreender que o ensino por pesquisa é uma quebra de paradigma nas práticas pedagógicas, mas que os professores precisam se alicerçar em princípios científicos para que possam favorecer a construção do conhecimento através do ensino por pesquisa.
A Praça como espaço de Alfabetização Ecológica
Authors: Cavalcante Lacerda Junior José , Sampaio Farias Taísa Lorene , De Souza Bezerra Alberto , Gasparetto Higuchi Maria Inês 
Published: May 2018

A utilização dos espaços públicos tem contribuído cada vez mais para a interligação do conhecimento em Educação em Ciências. Nesse sentido, o presente artigo pretende compreender como a praça pública é representada como espaço favorável para o desenvolvimento de temáticas que envolvem a Alfabetização Ecológica. Para tanto, dialoga com Segawa (1996), Bauman (2001) e Capra (2003, 2006). O seu desenvolvimento metodológico baseia-se, ainda, em visitas a uma praça pública da cidade de Manaus, onde foram realizadas entrevistas semiestruturadas com sete (07) frequentadores da praça. A estrutura do texto se organiza em três pontos: 1) A função histórica das praças; 2) A praça como instrumento de Alfabetização Ecológica; 3) A praça como espaço pedagógico mediante a representação de seus frequentadores. Os resultados sinalizam que as experiências realizadas no espaço da praça oportuniza o processo de Alfabetização Ecológica mediante a aprendizagem significativa do espaço.
Ensino e Pesquisa: Uma análise da produção científica em tecnologia em logística nos anais de um evento em um Instituto Federal
Authors: Silva Lucas Braga da , Dos Santos Josilene Tavares Barbosa 
Published: May 2018

Este estudo foi desenvolvido, a partir dos anais de um evento científico realizado por um instituto federal, com intuito de analisar a produção científica de discentes e docentes do curso superior de logística nos anos de 2014, 2015 e 2016. O Instituto, dessa forma, busca promover: divulgação, discussão e desenvolvimento técnico-científico aos assistidos por ele, integrando ensino e pesquisa. Como método de pesquisa, utilizou-se: pesquisa bibliográfica, pesquisa descritiva com análise sistemática e pesquisa quantitativa. Nessa discussão de comparativos relacionados a este evento, demonstrado por tabelas, percebe-se que: há pouca participação de discentes e docentes do curso com publicações de trabalhos. Dessa forma, professores e alunos, deixam de contribuir com a academia e sociedade no desenvolvimento de estudos que norteariam outras pesquisas. Entretanto, a desvalorização de publicações e produções de cunho científico deve ser substituída por estratégias para instigar a pesquisa e extensão.
Ortaokul Öğrencilerinin Konuşma Kaygıları ve Akademik Özyeterlik İnançlarının Çeşitli Değişkenler Açısından İncelenmesi
Authors: Arslan Aysel 
Published: May 2018

Bu çalışmanın amacı; ortaokul öğrencilerinin konuşma
kaygıları ve akademik özyeterliklerinin cinsiyet, sınıf, anne ve baba eğitim
durumları değişkenlerine göre incelenmesi ve öğrencilerin konuşma kaygıları ile
akademik özyeterlikleri arasındaki ilişkinin belirlenmesidir. Araştırmaya
ilişkin verilerin elde edilmesi için tarama modelleri arasında bulunan basit
seçkisiz örnekleme yöntemi tercih edilmiştir. Araştırmaya dâhil edilen örneklem
grubunu 2016-2017 eğitim-öğretim yılı bahar döneminde Sivas il merkezinde, bulundukları
eğitim bölgelerine dikkat edilerek seçilmiş 10 farklı ortaokulda eğitim
görmekte olan 200 kız, 286 erkek olmak üzere toplamda 486 öğrenci
oluşturmaktadır. Öğrencilerin konuşmaya yönelik yaşadıkları kaygı durumlarının
belirlenmesi için Sevim (2012) tarafından geliştirilen “Konuşma Kaygısı Ölçeği” kullanılmıştır. Ölçeğin konuşmacı odaklı
kaygı, çevre odaklı kaygı ve konuşma psikolojisi olarak üç alt boyutu
bulunmaktadır. Ölçeğin toplam güvenirliği .91 olarak belirlenmiştir. Bu
araştırmada; öğrencilerin özyeterliklerini belirlemek amacıyla Muris (2001)
tarafından geliştirilen “Çocuklar İçin
Öz-yeterlik Ölçeği”nin alt boyutlarından olan “Akademik Özyeterlik Alt Ölçeği” kullanılmıştır. Ölçeğin Türkçeye
uyarlamasını Telef ve Karaca (2012)
yapmış ve ölçeğin akademik özyeterlik alt boyutunun güvenirliği .84 olarak; bu
çalışmada ise .79 olarak bulunmuştur. Araştırmada elde edilen verilerin analizi
için aritmetik ortalama, yüzde, T-testi, Anova, LSD ve Pearson Korelasyon
Katsayısı analiz teknikleri kullanılmıştır. Öğrencilerin, konuşma kaygı ve
akademik özyeterlik puanlarının cinsiyet, sınıf, anne ve baba eğitim durumu
değişkenlerine göre anlamlı bir şekilde farklılık gösterdiği tespit edilmiştir.
Öğrencilerin konuşma kaygısı ve akademik özyeterlik puanlarının korelasyon
sonuçlarına göre aralarında orta düzeyde bir ilişkinin (-.49) olduğu
belirlenmiştir.
« À chacun son paradoxe »
Authors: Valette Annick , Diochon Pauline Fatien , Burellier Franck 
Published: May 2018

Que devient un paradoxe organisationnel quand il est délégué aux individus ? Cette question, cruciale dans un contexte où les individus héritent de plus en plus d’un travail de gestion des paradoxes autrefois assuré au niveau organisationnel, n’a pas de réponse unique. L’étude conclut en effet « contre un déterminisme des paradoxes » puisque le type de paradoxe ne semble ni déterminer la manière dont il est reçu par les individus – nous parlons ici de diffraction du paradoxe –, ni la manière dont ils y font face – avec des différences inter et intra-individuelles. Proposant de comprendre cette variabilité comme le résultat d’une combinaison d’effets de dispositions (poids des caractéristiques individuelles) et d’effets de positions (rôle des situations), les auteurs suggèrent des leviers d’action pour favoriser leur contrôle.
Selection of endoscopic or transcranial surgery for tuberculum sellae meningiomas according to specific anatomical features: a retrospective multicenter analysis (KOSEN-002)
Authors: Kong Doo-Sik , Hong Chang-Ki , Hong Sang Duk , Nam Do-Hyun , Lee Jung-Il , Seol Ho Jun , Oh Jiwoong , Kim Dong Gyu , Kim Yong Hwy 
Published: May 2018

OBJECTIVEThe endoscopic endonasal approach (EEA) and the transcranial approach (TCA) are good options for the treatment of tuberculum sellae (TS) meningiomas. The objective of this study was to identify the key anatomical features in TS meningiomas and compare the two surgical approaches.METHODSThe authors retrospectively reviewed clinical data in 178 patients with TS meningiomas treated at 3 institutions between January 2010 and July 2016. Patients with tumors encasing the internal carotid artery or anterior cerebral artery or involving the anterior clinoid process or cavernous sinus were excluded. Tumors were classified as high-lying or low-lying based on their location, and involvement of the optic canal was evaluated. The surgical outcomes of EEA and TCA were analyzed according to the relevant anatomical features.RESULTSDuring the study period, 84 patients underwent EEA and 94 patients underwent TCA. Based on preoperative MR images, 43 (24.2%) meningiomas were classified as high-lying tumors, 126 (70.8%) as low-lying, and 9 (5.0%) as nonspecific. Gross-total resection (GTR) was performed in 145 patients (81.5%); the GTR rate did not differ significantly between the EEA and TCA groups. Of 157 patients with preoperative visual disturbance, 140 had improved or stable vision postoperatively. However, 17 patients (9.6%) experienced some visual deterioration after surgery. The TCA group had a worse visual outcome than the EEA group in patients with preoperative optic canal involvement (77.6% vs 93.2%, p = 0.019), whereas there was no significant difference in visual outcome based on whether tumors were high-lying or low-lying.CONCLUSIONSThe results of this study support EEA over TCA, at least with respect to visual improvement with acceptable complications, although TCA is still an effective approach for TS meningioma.
Added value of multiple versus single sessions of repetitive transcranial magnetic stimulation in predicting motor cortex stimulation efficacy for refractory neuropathic pain
Authors: Pommier Benjamin , Quesada Charles , Fauchon Camille , Nuti Christophe , Vassal François , Peyron Roland 
Published: May 2018

OBJECTIVESelection criteria for offering patients motor cortex stimulation (MCS) for refractory neuropathic pain are a critical topic of research. A single session of repetitive transcranial magnetic stimulation (rTMS) has been advocated for selecting MCS candidates, but it has a low negative predictive value. Here the authors investigated whether multiple rTMS sessions would more accurately predict MCS efficacy.METHODSPatients included in this longitudinal study could access MCS after at least four rTMS sessions performed 3–4 weeks apart. The positive (PPV) and negative (NPV) predictive values of the four rTMS sessions and the correlation between the analgesic effects of the two treatments were assessed.RESULTSTwelve MCS patients underwent an average of 15.9 rTMS sessions prior to surgery; nine of the patients were rTMS responders. Postoperative follow-up was 57.8 ± 15.6 months (mean ± standard deviation). Mean percentage of pain relief (%R) was 21% and 40% after the first and fourth rTMS sessions, respectively. The corresponding mean durations of pain relief were respectively 2.4 and 12.9 days. A cumulative effect of the rTMS sessions was observed on both %R and duration of pain relief (p < 0.01). The %R value obtained with MCS was 35% after 6 months and 43% at the last follow-up. Both the PPV and NPV of rTMS were 100% after the fourth rTMS session (p = 0.0045). A significant correlation was found between %R or duration of pain relief after the fourth rTMS session and %R at the last MCS follow-up (R2 = 0.83, p = 0.0003).CONCLUSIONSFour rTMS sessions predicted MCS efficacy better than a single session in neuropathic pain patients. Taking into account the cumulative effects of rTMS, the authors found a high-level correlation between the analgesic effects of rTMS and MCS.
Testing the effectiveness and the contribution of experimental supercharge (reversed) end-to-side nerve transfer
Authors: Nadi Mustafa , Ramachandran Sudheesh , Islam Abir , Forden Joanne , Guo Gui Fang , Midha Rajiv 
Published: May 2018

OBJECTIVESupercharge end-to-side (SETS) transfer, also referred to as reverse end-to-side transfer, distal to severe nerve compression neuropathy or in-continuity nerve injury is gaining clinical popularity despite questions about its effectiveness. Here, the authors examined SETS distal to experimental neuroma in-continuity (NIC) injuries for efficacy in enhancing neuronal regeneration and functional outcome, and, for the first time, they definitively evaluated the degree of contribution of the native and donor motor neuron pools.METHODSThis study was conducted in 2 phases. In phase I, rats (n = 35) were assigned to one of 5 groups for unilateral sciatic nerve surgeries: group 1, tibial NIC with distal peroneal-tibial SETS; group 2, tibial NIC without SETS; group 3, intact tibial and severed peroneal nerves; group 4, tibial transection with SETS; and group 5, severed tibial and peroneal nerves. Recovery was evaluated biweekly using electrophysiology and locomotion tasks. At the phase I end point, after retrograde labeling, the spinal cords were analyzed to assess the degree of neuronal regeneration. In phase II, 20 new animals underwent primary retrograde labeling of the tibial nerve, following which they were assigned to one of the following 3 groups: group 1, group 2, and group 4. Then, secondary retrograde labeling from the tibial nerve was performed at the study end point to quantify the native versus donor regenerated neuronal pool.RESULTSIn phase I studies, a significantly increased neuronal regeneration in group 1 (SETS) compared with all other groups was observed, but with modest (nonsignificant) improvement in electrophysiological and behavioral outcomes. In phase II experiments, the authors discovered that secondary labeling in group 1 was predominantly contributed from the donor (peroneal) pool. Double-labeling counts were dramatically higher in group 2 than in group 1, suggestive of hampered regeneration from the native tibial motor neuron pool across the NIC segment in the presence of SETS.CONCLUSIONSSETS is indeed an effective strategy to enhance axonal regeneration, which is mainly contributed by the donor neuronal pool. Moreover, the presence of a distal SETS coaptation appears to negatively influence neuronal regeneration across the NIC segment. The clinical significance is that SETS should only employ synergistic donors, as the use of antagonistic donors can downgrade recovery.
A compositional morphosemantic analysis of exclusivity in Ch'ol
Authors: Little Carol-Rose , Wiegand Mia 
Published: May 2018

We argue that novel empirical generalizations on exclusive operators in Ch’ol (Mayan) provide strong evidence for a morphological decompositionality of exclusivity into a core semantic entry and focus sensitivity. There is a robust literature on exclusivity and the distributions of scalar particles in various languages (Beaver & Clark 2003, 2008; Orenstein & Greenberg 2010; Coppock & Beaver 2011a,b). Coppock & Beaver (2011a) argue that mere operates in a different domain (properties) than only (propositions). Recent work on focus constructions in Mayan languages include Yasavul (2013) for K’iche’ and AnderBois (2012) for Yucatec Maya. However, little work has been done on the variation among exclusives in morphologically rich languages like Ch’ol. Original data from fieldwork indicate that exclusivity can occur independently of focus marking, and when divorced from focus, the exclusive morpheme has a wider distribution and range of meanings.
Réécrire pour énoncer à nouveau : l’exemple de Ramuz chez Grasset
Authors: Nicollier-Saraillon Valentine 
Published: May 2018

C. F. Ramuz (1878-1947) est un réécrivain systématique. Cet article propose de mettre en perspective les réécritures qu’il effectue dès 1924 pour son éditeur parisien Grasset en envisageant d’une part les conditions de ce geste de réécriture en contexte d’énonciation éditoriale, d’autre part l’effet, sur la pratique de la réécriture, de la représentation que s’en fait le réécrivain. Ce double axe de réflexion permet d’observer que la finalité que Ramuz assigne à la réécriture n’est pas de corriger des fautes ni d’adapter sa langue à un nouveau lectorat, mais de réactiver le lien de production qui unit le scripteur à son texte, un lien dont la publication a entériné la rupture. L’hypothèse d’un imaginaire de la réécriture comme une re-énonciation met en évidence les principaux enjeux que revêt ce geste aux yeux de l’écrivain. Ces enjeux, la problématique du temps de l’écriture et de l’âge de l’écrit ou celle d’une forme particulière de double locution qui confère au scripteur la fonction de premier lecteur de son livre, déterminent ainsi la finalité et le type de réécritures effectuées par l’écrivain.
La Bourse de Lyon et les autres. Une première évaluation de la géographie des marchés financiers français au XIXe siècle
Authors: Ducros Jérémy , Riva Angelo 
Published: May 2018

Cet article vise à jeter les bases d’une histoire comparée des places boursières françaises. Il montre que la géographie des marchés financiers demeure relativement stable entre 1871 et 1913 : si l’on se fonde sur le nombre d’entreprises domestiques cotées, le développement de Paris ne s’est en effet pas fait au détriment des bourses régionales, au sein desquelles Lyon acquiert un rôle prépondérant en doublant son poids à la fois sur les plans national et régional. La relative stabilité des relations entre Paris et la province et l’essor lyonnais sont le résultat d’une dynamique institutionnelle façonnée par les relations de concurrence entre places et les changements dans la régulation des bourses. Cette dynamique empêche la centralisation des émetteurs sur le marché dominant, la Bourse de Paris, comme prédit par la littérature théorique dominante.