27 research outputs found

    Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences

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    The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & NemĂ©sio 2007; Donegan 2008, 2009; NemĂ©sio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009; Cianferoni & Bartolozzi 2016; Amorim et al. 2016). This question was again raised in a letter supported by 35 signatories published in the journal Nature (Pape et al. 2016) on 15 September 2016. On 25 September 2016, the following rebuttal (strictly limited to 300 words as per the editorial rules of Nature) was submitted to Nature, which on 18 October 2016 refused to publish it. As we think this problem is a very important one for zoological taxonomy, this text is published here exactly as submitted to Nature, followed by the list of the 493 taxonomists and collection-based researchers who signed it in the short time span from 20 September to 6 October 2016

    Supplementation of Omega-6 Fatty Acids in Cow-calf Operations

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    Four experiments were conducted to evaluate: (1) effects of calcium salts of soybean oil (CSSO) supplementation to Bos taurus beef cows post-AI on conception rates and (2) on pregnancy establishment factors; (3) effects of CSSO supplementation to late gestating beef cows on the performance of the offspring; (4) the viability of utilizing low-moisture molasses-based blocks (LMB) as a delivery method for CSSO. In Exp. 1, 1,771 cows were divided into groups, and inseminated on d 0. After AI, groups received CSSO (n = 11), or prilled saturated fat (CON; n = 11) from d 0 to 21. Cows receiving CSSO had greater (P = 0.01) pregnancy rates. In Exp. 2, 90 cows housed in 18 pens were assigned to the same treatments and timed AI program from Exp. 1. On d 15, selected cows were assigned to conceptus collection. On d 20 blood was sampled for RNA extraction. CSSO supplementation increased (P = 0.05) mRNA expression of IFNT by the conceptus, and blood mRNA expression of ISGs. In Exp. 3, cows were assigned to receive: CSSO (n = 52) or CON (n = 52) during late gestation. CSSO cattle had greater (P ≀ 0.02) colostrum and plasma IgG; greater (P ≀ 0.05) expression of adipogenic and myogenic genes; required fewer microbial treatments for BRD (P = 0.05) and had greater LM area compared to CON cohorts. In Exp. 4, 36 cows (n = 9 pens) were assigned to receive: 1) NOSUPP; 2) LMB, 24.7% CSSO; 3) CONC, hand-fed, 24.7% CSSO. Plasma concentrations of linoleic acid, ω-6 PUFA, and total FA were greater (P < 0.01) in CONC and LMB vs. NOSUPP cows. Collectively, these results present CSSO supplementation as a strategy to improve reproductive success in Bos taurus beef cows and productive performance of offspring born from supplemented dams. These results are associated to effects of linoleic acid and its ω-6 derivates. Additionally, the use of LMB seems to be a valid delivery method for CSSO supplementation, and consequently ω-6 FA, to beef cows

    Customised visualisations of Linked Open Data

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    This paper aims to tackle on Linked Open Data (LOD) customised visualisations. The work is part of an ongoing research on interfaces and tools for helping non-programmers to easily present, analyse and support sense making over large semantic dataset. The customisation is a key aspect of our work. Producing effective customised visualisations is still difficult due to the complexity of the existing tools and the limited set of options they offer, especially to those with little knowledge in LOD and semantic data models. How can we give users full control on the primitives of the visualisation and their properties, without requiring them to master Semantic Web technologies or programming languages? The paper presents a conceptual model that can be used as a reference to build tools for generating customisable infoviews. We used it to conduct a survey on existing tools in terms of customisation capabilities. Starting from the feedback collected in this phase, we will implement these customisation features into some prototypes we are currently experimenting on

    Customised visualisations of Linked Open Data

    No full text
    This paper aims to tackle on Linked Open Data (LOD) customised visualisations. The work is part of an ongoing research on interfaces and tools for helping non-programmers to easily present, analyse and support sense making over large semantic dataset. The customisation is a key aspect of our work. Producing effective customised visualisations is still difficult due to the complexity of the existing tools and the limited set of options they offer, especially to those with little knowledge in LOD and semantic data models. How can we give users full control on the primitives of the visualisation and their properties, without requiring them to master Semantic Web technologies or programming languages? The paper presents a conceptual model that can be used as a reference to build tools for generating customisable infoviews. We used it to conduct a survey on existing tools in terms of customisation capabilities. Starting from the feedback collected in this phase, we will implement these customisation features into some prototypes we are currently experimenting on

    Marfan’s syndrome and pregnancy: a good maternal and fetal outcome

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    This case report highlights the important role of a multidisciplinary team’s task in the care of pregnant women with Marfan’s syndrome (MFS), a systemic disorder of connective tissue that is transmitted as an autosomal dominant trait. Case: a 42 year-old italian pregnant woman with Marfan’s syndrome and degenerative heart disease (aneurysmatic dilatation of the aortic root, mitral regurgitation and prosthetic mitralic valve) was clinically assessed jointly by an obstetrician and a cardiologist, ‘the obstetric team specialised in management of high risk pregnancy’, every 2-3 weeks from the 21th week of gestation. The first ambulatory monitoring echocardiogra- phy revelead aneurysmatic dilatation of the aortic root (41 mm), good function of the previously replaced mitral valve, cardiac ejection fraction 51% and telediastolic volume 116 ml. The echocardio-graphies showed no changes up to 32 weeks gestation. At the 34th week of gestation she had a slight decrease in cardiac ejection fraction and minimal increase of left ventricular diastolic volume. Therefore she underwent elective cesarean section under general anesthesia at 35 weeks’gestation. The post-partum course was uneventfull for the patient and the baby. Conclusion: pregnant women with heart disease benefit from an appropriate antenatal management, which may result in a favourable outcome

    Maternal obesity and adverse respiratory outcomes in late preterm neonates

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    BACKGROUND: Assessing if obesity is an independent risk factor for neonatal respiratory adverse outcome in late preterm infants. METHODS: Retrospective collection of outcome data of late preterm infants delivered at the Arcispedale Sant’Anna of Ferrara, between 2017 and 2019. A univariate and multivariate logistic regression analysis has been performed among variables theoretically conditioning the neonate outcome variables. Among independent variables, Body Mass Index ≄25 and ≄30 was assessed. RESULTS: One-hundred-fifty-five late preterm infants have been enrolled. At univariate analysis, neither obesity (Body Mass Index ≄30) nor overweight (Body Mass Index ≄25) are associated with adverse respiratory outcomes. At multivariate analysis, Body Mass Index ≄30 fails to reach significance for preventing transient tachypnea of the newborn (odds ratio 0.392, 95% confidence intervals 0.138-1.113, P=0.079). Betamethasone administration independently reduces the odds ratio for transient tachypnea, while gestational age of 34 weeks independently increases the odds ratio of adverse neonatal respiratory outcomes. CONCLUSIONS: Results of the study does not support the hypothesis that obesity affects respiratory outcomes at birth in late preterm babies. It would push to assess further the relationship with obesity and transient tachypnea of the neonates

    Genetic Contributions to the Development of Complications in Preterm Newborns

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    <div><p>Aim</p><p>We aimed to identify specific polymorphisms of genes encoding for vascular endothelial growth factor A (<i>VEGFA</i>), endothelial nitric oxide synthase (<i>eNOS</i>), renin-angiotensin system (angiotensinogen gene [<i>AGT</i>], angiotensinogen type 1 receptor [<i>AGTR1</i>], angiotensin-converting enzyme [<i>ACE</i>]), and heme oxygenase-1 (<i>HMOX-1</i>) in a cohort of preterm infants and correlate their presence with the development of respiratory distress syndrome (RDS) requiring mechanical ventilation (MV), bronchopulmonary dysplasia (BPD), intraventricular hemorrhage (IVH) and retinopathy of prematurity (ROP).</p><p>Study Design</p><p>We carried out a retrospective study to evaluate the allele frequency and genotype distribution of polymorphisms of <i>VEGFA</i>, <i>eNOS</i>, <i>AGT</i>, <i>AGTR1</i>, <i>ACE</i>, and <i>HMOX-1</i> in a population of preterm neonates (n=342) with a gestational age ≀28 weeks according to the presence or absence of RDS requiring MV, BPD, IVH, or ROP. Moreover, we evaluated through the haplotype reconstruction analysis whether combinations of the selected polymorphisms are related to the occurrence of RDS, BPD, IVH and ROP.</p><p>Results</p><p>In our population 157 infants developed RDS requiring MV, 71 BPD, 70 IVH, and 43 ROP. We found that TC+CC rs2070744 <i>eNOS</i> (41.7 vs. 25.4%, p=0.01) and GT+TT rs1799983 <i>eNOS</i> (51.8 vs. 35.2%, p=0.01) polymorphisms are independent risk factors for BPD. Haplotype reconstruction showed that haplotypes in VEGF and <i>eNOS</i> are significantly associated with different effects on RDS, BPD, IVH, and ROP in our population.</p><p>Conclusions</p><p>We found that TC+CC rs2070744 <i>eNOS</i> and GT+TT rs1799983 <i>eNOS</i> polymorphisms are independent predictors of an increased risk of developing BPD. Haplotypes of <i>VEGFA</i> and <i>eNOS</i> may be independent protective or risk markers for prematurity complications.</p></div
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