115 research outputs found
Wiley encyclopedia of management
Definition of life cycle strategy as included in the Wiley Encyclopedia of Management.peer-reviewe
Designing and implementing sample and data collection for an international genetics study: the Type 1 Diabetes Genetics Consortium (T1DGC)
Background and PurposeāThe Type 1 Diabetes Genetics Consortium (T1DGC) is an
international project whose primary aims are to: (a) discover genes that modify
type 1 diabetes risk; and (b) expand upon the existing genetic resources for
type 1 diabetes research. The initial goal was to collect 2500 affected sibling
pair (ASP) families worldwide
DMRN+16: Digital Music Research Network One-day Workshop 2021
DMRN+16: Digital Music Research Network One-day Workshop 2021 Queen Mary University of London Tuesday 21st December 2021 Keynote speakers Keynote 1. Prof. Sophie Scott -Director, Institute of Cognitive Neuroscience, UCL. Title: "Sound on the brain - insights from functional neuroimaging and neuroanatomy" Abstract In this talk I will use functional imaging and models of primate neuroanatomy to explore how sound is processed in the human brain. I will demonstrate that sound is represented cortically in different parallel streams. I will expand this to show how this can impact on the concept of auditory perception, which arguably incorporates multiple kinds of distinct perceptual processes. I will address the roles that subcortical processes play in this, and also the contributions from hemispheric asymmetries. Keynote 2: Prof. Gus Xia - Assistant Professor at NYU Shanghai Title: "Learning interpretable music representations: from human stupidity to artificial intelligence" Abstract Gus has been leading the Music X Lab in developing intelligent systems that help people better compose and learn music. In this talk, he will show us the importance of music representation for both humans and machines, and how to learn better music representations via the design of inductive bias. Once we got interpretable music representations, the potential applications are limitless
Puzzling over spurdogs : molecular taxonomy assessment of the Squalus species in the Strait of Sicily
The actual occurrence of Squalus megalops in the Mediterranean Sea has recently been questioned. Several research works
which sought to assess available morphological and meristic features that differentiate S. megalops from other Squalus species in
the Mediterranean Sea, revealed poor discriminatory power and high variability of the assessed characters, especially when
comparing S. megalops and S. blainville. The application of molecular tools does not support the presence of S. megalops.
In the present study, we screened spurdog species from the Strait of Sicily using a molecular taxonomy approach based
on two mitochondrial DNA markers and we report the occurrence of two Squalus lineages characterizing specimens
collected from the stretch of sea between Tunisia, southern Sicily, Malta and Libya. The results support the hypothesis
that a common species, S. blainville, currently inhabits the Mediterranean Sea, while a second and rare species is probably
an occasional visitor with high morphological similarity to the S. megalops and S. blainville but is genetically distinct from
both. Within this perspective, the occurrence of S. megalops in the Mediterranean Sea is not confirmed and our study
highlights the taxonomic uncertainties in relation to the occurrence and distribution of Squalus species in this region. We
encourage the establishment of a coordinated international effort to implement a comprehensive and integrated taxonomic
assessment on this genus which represents an irreplaceable component of the biodiversity of the area.peer-reviewe
New Mediterranean biodiversity records (March 2016)
In this Collective Article on āNew Mediterranean Biodiversity Recordsā, we present additional records of species found
in the Mediterranean Sea. These records refer to eight different countries mainly throughout the northern part of the basin, and
include 28 species, belonging to five Phyla. The findings per country include the following species: Spain: Callinectes sapidus
and Chelidonura fulvipunctata; Monaco: Aplysia dactylomela; Italy: Charybdis (Charybdis) feriata, Carcharodon carcharias,
Seriola fasciata, and Siganus rivulatus; Malta: Pomacanthus asfur; Croatia: Lagocephalus sceleratus and Pomadasys incisus;
Montenegro: Lagocephalus sceleratus; Greece: Amathia (Zoobotryon) verticillata, Atys macandrewii, Cerithium scabridum,
Chama pacifica, Dendostrea cf. folium, Ergalatax junionae, Septifer cumingii, Syphonota geographica, Syrnola fasciata, Oxyu-
richthys petersi, Scarus ghobban, Scorpaena maderensis, Solea aegyptiaca and Upeneus pori; Turkey: Lobotes surinamensis,
Ruvettus pretiosus and Ophiocten abyssicolum. In the current article, the presence of Taractes rubescens (Jordan & Evermann,
1887) is recorded for the first time in the Mediterranean from Italy. The great contribution of citizen scientists in monitoring
biodiversity records is reflected herein, as 10% of the authors are citizen scientists, and contributed 37.5% of the new findings.peer-reviewe
Reduced prefrontal gyrification in obsessiveācompulsive disorder
Structural magnetic resonance imaging (MRI) studies reveal evidence for brain abnormalities in obsessiveācompulsive disorder (OCD), for instance, reduction of gray matter volume in the prefrontal cortex. Disturbances of gyrification in the prefrontal cortex have been described several times in schizophrenia pointing to a neurodevelopmental etiology, while gyrification has not been studied so far in OCD patients. In 26 OCD patients and 38 healthy control subjects MR-imaging was performed. Prefrontal cortical folding (gyrification) was measured bilaterally by an automated version of the automated-gyrification index (A-GI), a ratio reflecting the extent of folding, from the slice containing the inner genu of the corpus callosum up to the frontal pole. Analysis of covariance (ANCOVA, independent factor diagnosis, covariates age, duration of education) demonstrated that compared with control subjects, patients with OCD displayed a significantly reduced A-GI in the left hemisphere (pĀ =Ā 0.021) and a trend for a decreased A-GI in the right hemisphere (pĀ =Ā 0.076). Significant correlations between prefrontal lobe volume and A-GI were only observed in controls, but not in OCD patients. In conclusion, prefrontal hypogyrification in OCD patients may be a structural correlate of the impairment in executive function of this patient group and may point to a neurodevelopmental origin of this disease
ACE (I/D) polymorphism and response to treatment in coronary artery disease: a comprehensive database and meta-analysis involving study quality evaluation
<p>Abstract</p> <p>Background</p> <p>The role of angiotensin-converting enzyme (<it>ACE</it>) gene insertion/deletion (<it>I/D</it>) polymorphism in modifying the response to treatment modalities in coronary artery disease is controversial.</p> <p>Methods</p> <p>PubMed was searched and a database of 58 studies with detailed information regarding <it>ACE I/D </it>polymorphism and response to treatment in coronary artery disease was created. Eligible studies were synthesized using meta-analysis methods, including cumulative meta-analysis. Heterogeneity and study quality issues were explored.</p> <p>Results</p> <p>Forty studies involved invasive treatments (coronary angioplasty or coronary artery by-pass grafting) and 18 used conservative treatment options (including anti-hypertensive drugs, lipid lowering therapy and cardiac rehabilitation procedures). Clinical outcomes were investigated by 11 studies, while 47 studies focused on surrogate endpoints. The most studied outcome was the restenosis following coronary angioplasty (34 studies). Heterogeneity among studies (p < 0.01) was revealed and the risk of restenosis following balloon angioplasty was significant under an additive model: the random effects odds ratio was 1.42 (95% confidence interval:1.07ā1.91). Cumulative meta-analysis showed a trend of association as information accumulates. The results were affected by population origin and study quality criteria. The meta-analyses for the risk of restenosis following stent angioplasty or after angioplasty and treatment with angiotensin-converting enzyme inhibitors produced non-significant results. The allele contrast random effects odds ratios with the 95% confidence intervals were 1.04(0.92ā1.16) and 1.10(0.81ā1.48), respectively. Regarding the effect of <it>ACE I/D </it>polymorphism on the response to treatment for the rest outcomes (coronary events, endothelial dysfunction, left ventricular remodeling, progression/regression of atherosclerosis), individual studies showed significance; however, results were discrepant and inconsistent.</p> <p>Conclusion</p> <p>In view of available evidence, genetic testing of <it>ACE I/D </it>polymorphism prior to clinical decision making is not currently justified. The relation between <it>ACE </it>genetic variation and response to treatment in CAD remains an unresolved issue. The results of long-term and properly designed prospective studies hold the promise for pharmacogenetically tailored therapy in CAD.</p
Elevated levels of Ī²-catenin and fibronectin in three-dimensional collagen cultures of Dupuytren's disease cells are regulated by tension in vitro
BACKGROUND: Dupuytren's contracture or disease (DD) is a fibro-proliferative disease of the hand that results in the development of scar-like, collagen-rich disease cords within specific palmar fascia bands. Although the molecular pathology of DD is unknown, recent evidence suggests that Ī²-catenin may play a role. In this study, collagen matrix cultures of primary disease fibroblasts show enhanced contraction and isometric tension-dependent changes in Ī²-catenin and fibronectin levels. METHODS: Western blots of Ī²-catenin and fibronectin levels were determined for control and disease primary cell cultures grown within stressed- and attached-collagen matrices. Collagen contraction was quantified, and immunocytochemistry analysis of filamentous actin performed. RESULTS: Disease cells exhibited enhanced collagen contraction activity compared to control cells. Alterations in isometric tension of collagen matrices triggered dramatic changes in Ī²-catenin and fibronectin levels, including a transient increase in Ī²-catenin levels within disease cells, while fibronectin levels steadily decreased to levels below those seen in normal cell cultures. In contrast, both fibronectin and Ī²-catenin levels increased in attached collagen-matrix cultures of disease cells, while control cultures showed only increases in fibronectin levels. Immunocytochemistry analysis also revealed extensive filamentous actin networks in disease cells, and enhanced attachment and spreading of disease cell in collagen matrices. CONCLUSION: Three-dimensional collagen matrix cultures of primary disease cell lines are more contractile and express a more extensive filamentous actin network than patient-matched control cultures. The elevated levels of Ī²-catenin and Fn seen in collagen matrix cultures of disease fibroblasts can be regulated by changes in isometric tension
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