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https://www.readbyqxmd.com/read/28944977/characterization-of-dicarboxylic-naphthenic-acid-fraction-compounds-utilizing-amide-derivatization-proof-of-concept
#1
Kevin A Kovalchik, Matthew S MacLennan, Kerry M Peru, Chukwuemeka Ajaero, Dena W McMartin, John V Headley, David D Y Chen
RATIONALE: The characterization of naphthenic acid fraction compounds (NAFCs) in oil sands process affected water (OSPW) is of interest for both toxicology studies and regulatory reasons. Previous studies utilizing authentic standards have identified dicarboxylic naphthenic acids using two-dimensional gas chromatography hyphenated to time-of-flight mass spectrometry (GCxGC/TOFMS). The selective derivatization of hydroxyl groups has also recently aided in the characterization of oxy-NAFCs, and indirectly the characterization of dicarboxylic NAFCs...
September 25, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/28944848/cmip-is-oncogenic-in-human-gastric-cancer-cells
#2
Jianlin Zhang, Jin Huang, Xingyu Wang, Weidong Chen, Qinqing Tang, Maoyong Fang, Yeben Qian
Gastric cancer is one of the most common cancers and the second leading cause of cancer‑associated mortality worldwide. Recurrence, metastasis and resistance to drug treatment are the main barrier to survival of patients with advanced stage gastric cancer. Further study of the molecular mechanisms involved will improve the therapeutic options for gastric cancer. In a previous study, c‑Maf was discovered as an oncogene transduced in the avian AS42 retrovirus, and was found to be overexpressed in multiple myeloma and angioimmunoblastic T‑cell lymphoma...
September 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944463/measuring-the-impact-of-teaching-approaches-on-achievement-related-emotions-the-use-of-the-achievement-emotions-questionnaire
#3
Rebecca Starkey-Perret, Aurore Deledalle, Christine Jeoffrion, Charlotte Rowe
BACKGROUND: This study focuses on achievement emotions in a context of foreign language acquisition in a French-speaking population. AIMS: Firstly, the reliability and construct validity of the Achievement Emotion Questionnaire were examined; the second aim was to compare the effectiveness of two teaching approaches, classical and task-based learning and teaching (TBLT) on students' emotions over time. SAMPLE: This study involves 299 participants...
September 25, 2017: British Journal of Educational Psychology
https://www.readbyqxmd.com/read/28943715/methods-for-eliciting-annotating-and-analyzing-databases-for-child-speech-development
#4
Mary E Beckman, Andrew R Plummer, Benjamin Munson, Patrick F Reidy
Methods from automatic speech recognition (ASR), such as segmentation and forced alignment, have facilitated the rapid annotation and analysis of very large adult speech databases and databases of caregiver-infant interaction, enabling advances in speech science that were unimaginable just a few decades ago. This paper centers on two main problems that must be addressed in order to have analogous resources for developing and exploiting databases of young children's speech. The first problem is to understand and appreciate the differences between adult and child speech that cause ASR models developed for adult speech to fail when applied to child speech...
September 2017: Computer Speech & Language
https://www.readbyqxmd.com/read/28942001/-percutaneous-renal-ablation-pre-per-post-interventional-evaluation-modalities-and-adapted-management
#5
J Garnon, T Tricard, R L Cazzato, X Cathelineau, A Gangi, H Lang
OBJECTIVES: Ablative treatment (AT) rise is foreseen, validation of steps to insure good proceedings is needed. By looking over the process of the patient, this study evaluates the requirements and choices needed in every step of the management. METHODS: We searched MEDLINE(®), Embase(®), using (MeSH) words and we looked for all the studies. Investigators graded the strength of evidence in terms of methodology, language and relevance. RESULTS: Explanations of AT proposal rather than partial nephrectomy or surveillance have to be discussed in a consultation shared by urologist and interventional radiologist...
September 20, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/28940450/national-clinical-practice-guidelines-for-allergen-immunotherapy-an-international-assessment-applying-agree-ii
#6
D E S Larenas-Linnemann, D Antolín-Amérigo, C Parisi, A Nakonechna, J A Luna-Pech, B Wedi, I Davila, M Gómez, M Levin, J A Ortega-Martell, L Klimek, N Rosario, A M Muraro, I Agache, J Bousquet, A Sheikh, O Pfaar
BACKGROUND: Since 1988 numerous allergen immunotherapy guidelines (AIT-GLs) have been developed by national and international organizations to guide physicians in AIT. Even so, AIT is still severely under-used. OBJECTIVE: to evaluate AIT-GLs with AGREE-II, developed in 2010 by McMaster University methodologists to comprehensively evaluate GL-quality. METHODS: Allergist, from different continents, knowledgeable in AIT and AGREE-II trained were selected into the project team...
September 21, 2017: Allergy
https://www.readbyqxmd.com/read/28937644/american-sign-language-alphabet-recognition-using-a-neuromorphic-sensor-and-an-artificial-neural-network
#7
Miguel Rivera-Acosta, Susana Ortega-Cisneros, Jorge Rivera, Federico Sandoval-Ibarra
This paper reports the design and analysis of an American Sign Language (ASL) alphabet translation system implemented in hardware using a Field-Programmable Gate Array. The system process consists of three stages, the first being the communication with the neuromorphic camera (also called Dynamic Vision Sensor, DVS) sensor using the Universal Serial Bus protocol. The feature extraction of the events generated by the DVS is the second part of the process, consisting of a presentation of the digital image processing algorithms developed in software, which aim to reduce redundant information and prepare the data for the third stage...
September 22, 2017: Sensors
https://www.readbyqxmd.com/read/28936014/linguistic-predictors-of-cultural-identification-in-bilinguals
#8
Scott R Schroeder, Tuan Q Lam, Viorica Marian
Most of the world's population has knowledge of at least two languages. Many of these bilinguals are also exposed to and identify with at least two cultures. Because language knowledge enables participation in cultural practices and expression of cultural beliefs, bilingual experience and cultural identity are interconnected. However, the specific links between bilingualism and cultural identity remain largely unidentified. The current study examined which aspects of bilingualism relate to identification with first- and second-language cultures...
August 1, 2017: Appl Linguist
https://www.readbyqxmd.com/read/28931501/cancer-predisposition-cascade-screening-for-hereditary-breast-ovarian-cancer-and-lynch-syndromes-in-switzerland-study-protocol
#9
Maria C Katapodi, Valeria Viassolo, Maria Caiata-Zufferey, Christos Nikolaidis, Rosmarie Bührer-Landolt, Nicole Buerki, Rossella Graffeo, Henrik Csaba Horváth, Christian Kurzeder, Manuela Rabaglio, Michael Scharfe, Corinne Urech, Tobias E Erlanger, Nicole Probst-Hensch, Karl Heinimann, Viola Heinzelmann-Schwarz, Olivia Pagani, Pierre O Chappuis
BACKGROUND: Breast, colorectal, ovarian, and endometrial cancers constitute approximately 30% of newly diagnosed cancer cases in Switzerland, affecting more than 12,000 individuals annually. Hundreds of these patients are likely to carry germline pathogenic variants associated with hereditary breast ovarian cancer (HBOC) or Lynch syndrome (LS). Genetic services (counseling and testing) for hereditary susceptibility to cancer can prevent many cancer diagnoses and deaths through early identification and risk management...
September 20, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28931203/scalpel-versus-electrosurgery-for-major-abdominal-incisions
#10
REVIEW
Kittipat Charoenkwan, Zipporah Iheozor-Ejiofor, Kittipan Rerkasem, Elizabeth Matovinovic
BACKGROUND: Scalpels or electrosurgery can be used to make abdominal incisions. The potential benefits of electrosurgery may include reduced blood loss, dry and rapid separation of tissue, and reduced risk of cutting injury to surgeons. Postsurgery risks possibly associated with electrosurgery may include poor wound healing and complications such as surgical site infection. OBJECTIVES: To assess the effects of electrosurgery compared with scalpel for major abdominal incisions...
June 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28928681/how-does-l1-and-l2-exposure-impact-l1-performance-in-bilingual-children-evidence-from-polish-english-migrants-to-the-united-kingdom
#11
Ewa Haman, Zofia Wodniecka, Marta Marecka, Jakub Szewczyk, Marta Białecka-Pikul, Agnieszka Otwinowska, Karolina Mieszkowska, Magdalena Łuniewska, Joanna Kołak, Aneta Miękisz, Agnieszka Kacprzak, Natalia Banasik, Małgorzata Foryś-Nogala
Most studies on bilingual language development focus on children's second language (L2). Here, we investigated first language (L1) development of Polish-English early migrant bilinguals in four domains: vocabulary, grammar, phonological processing, and discourse. We first compared Polish language skills between bilinguals and their Polish non-migrant monolingual peers, and then investigated the influence of the cumulative exposure to L1 and L2 on bilinguals' performance. We then examined whether high exposure to L1 could possibly minimize the gap between monolinguals and bilinguals...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28924815/automatic-determination-of-the-need-for-intravenous-contrast-in-musculoskeletal-mri-examinations-using-ibm-watson-s-natural-language-processing-algorithm
#12
Hari Trivedi, Joseph Mesterhazy, Benjamin Laguna, Thienkhai Vu, Jae Ho Sohn
Magnetic resonance imaging (MRI) protocoling can be time- and resource-intensive, and protocols can often be suboptimal dependent upon the expertise or preferences of the protocoling radiologist. Providing a best-practice recommendation for an MRI protocol has the potential to improve efficiency and decrease the likelihood of a suboptimal or erroneous study. The goal of this study was to develop and validate a machine learning-based natural language classifier that can automatically assign the use of intravenous contrast for musculoskeletal MRI protocols based upon the free-text clinical indication of the study, thereby improving efficiency of the protocoling radiologist and potentially decreasing errors...
September 18, 2017: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/28923499/descemet-membrane-endothelial-keratoplasty-safety-and-outcomes-a-report-by-the-american-academy-of-ophthalmology
#13
Sophie X Deng, W Barry Lee, Kristin M Hammersmith, Anthony N Kuo, Jennifer Y Li, Joanne F Shen, Mitchell P Weikert, Roni M Shtein
PURPOSE: To review the published literature on the safety and outcomes of Descemet membrane endothelial keratoplasty (DMEK) for the surgical treatment of corneal endothelial dysfunction. METHODS: Literature searches were last conducted in the PubMed and the Cochrane Library databases most recently in May 2017. The searches, which were limited to English-language abstracts, yielded 1085 articles. The panel reviewed the abstracts, and 47 were determined to be relevant to this assessment...
September 15, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28923487/furcation-and-fusion-the-phylogenetics-of-evolutionary-novelty
#14
REVIEW
Todd H Oakley
Novelty and innovation are fundamental yet relatively understudied concepts in evolution. We may study the history and provenance of novelty using phylogenetics, where key questions include when evolution occurs by tree-like branching and when it occurs by movement of distantly related parts in processes akin to horizontal transfer. Perfectly vertical inheritance, often an assumption of evolutionary trees, requires simultaneous co-duplication of the parts of a duplicating or speciating (processes I collectively call 'furcating') biological feature...
September 18, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28919944/network-analysis-on-attitudes-a-brief-tutorial
#15
Jonas Dalege, Denny Borsboom, Frenk van Harreveld, Han L J van der Maas
In this article, we provide a brief tutorial on the estimation, analysis, and simulation on attitude networks using the programming language R. We first discuss what a network is and subsequently show how one can estimate a regularized network on typical attitude data. For this, we use open-access data on the attitudes toward Barack Obama during the 2012 American presidential election. Second, we show how one can calculate standard network measures such as community structure, centrality, and connectivity on this estimated attitude network...
July 2017: Social Psychological and Personality Science
https://www.readbyqxmd.com/read/28916988/gesture-and-action-exemplar-grace-video-database-stimuli-for-research-on-manners-of-human-locomotion-and-iconic-gestures
#16
Suzanne Aussems, Natasha Kwok, Sotaro Kita
Human locomotion is a fundamental class of events, and manners of locomotion (e.g., how the limbs are used to achieve a change of location) are commonly encoded in language and gesture. To our knowledge, there is no openly accessible database containing normed human locomotion stimuli. Therefore, we introduce the GestuRe and ACtion Exemplar (GRACE) video database, which contains 676 videos of actors performing novel manners of human locomotion (i.e., moving from one location to another in an unusual manner) and videos of a female actor producing iconic gestures that represent these actions...
September 15, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28915782/voicing-assimilation-in-czech-and-slovak-speakers-of-english-interactions-of-segmental-context-language-and-strength-of-foreign-accent
#17
Radek Skarnitzl, Pavel Šturm
This study focuses on voicing assimilation across word boundaries in the speech of second language (L2) users. We compare native speakers of British English to speakers of two West Slavic languages, Czech and Slovak, which, despite their many similarities, differ with respect to voicing assimilation rules. Word-final voicing was analysed in 30 speakers, using the static value of voicing percentage and the voicing profile method. The results of linear mixed-effects modelling suggest an effect of first language (L1) transfer in all L2 English speaker groups, with the tendency to assimilate being correlated with the strength of foreign accent...
September 2017: Language and Speech
https://www.readbyqxmd.com/read/28915781/f2-slope-as-a-perceptual-cue-for-the-front-back-contrast-in-standard-southern-british-english
#18
Kateřina Chládková, Silke Hamann, Daniel Williams, Sam Hellmuth
Acoustic studies of several languages indicate that second-formant (F2) slopes in high vowels have opposing directions (independent of consonantal context): front [iː]-like vowels are produced with a rising F2 slope, whereas back [uː]-like vowels are produced with a falling F2 slope. The present study first reports acoustic measurements that confirm this pattern for the English variety of Standard Southern British English (SSBE), where /uː/ has shifted from the back to the front area of the vowel space and is now realized with higher midpoint F2 values than several decades ago...
September 2017: Language and Speech
https://www.readbyqxmd.com/read/28915779/relative-salience-of-speech-rhythm-and-speech-rate-on-perceived-foreign-accent-in-a-second-language
#19
Leona Polyanskaya, Mikhail Ordin, Maria Grazia Busa
We investigated the independent contribution of speech rate and speech rhythm to perceived foreign accent. To address this issue we used a resynthesis technique that allows neutralizing segmental and tonal idiosyncrasies between identical sentences produced by French learners of English at different proficiency levels and maintaining the idiosyncrasies pertaining to prosodic timing patterns. We created stimuli that (1) preserved the idiosyncrasies in speech rhythm while controlling for the differences in speech rate between the utterances; (2) preserved the idiosyncrasies in speech rate while controlling for the differences in speech rhythm between the utterances; and (3) preserved the idiosyncrasies both in speech rate and speech rhythm...
September 2017: Language and Speech
https://www.readbyqxmd.com/read/28915295/error-type-and-lexical-frequency-effects-error-detection-in-swedish-children-with-language-impairment
#20
Anna Eva Hallin, Christina Reuterskiöld
Purpose: The first aim of this study was to investigate if Swedish-speaking school-age children with language impairment (LI) show specific morphosyntactic vulnerabilities in error detection. The second aim was to investigate the effects of lexical frequency on error detection, an overlooked aspect of previous error detection studies. Method: Error sensitivity for grammatical structures vulnerable in Swedish-speaking preschool children with LI (omission of the indefinite article in a noun phrase with a neuter/common noun, and use of the infinitive instead of past-tense regular and irregular verbs) was compared to a control error (singular noun instead of plural)...
September 14, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
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