11 research outputs found
Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences
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 2009aâb; 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
Efficacy and Safety of Glycopyrrolate/Formoterol Metered Dose Inhaler Formulated Using Co-Suspension Delivery Technology in Patients With COPD
Background Long-acting muscarinic antagonist (LAMA)/long-acting ÎČ 2 -agonist (LABA) combinations are a treatment option for patients with COPD who continue to have symptoms despite treatment with a LAMA or a LABA alone. The Efficacy and Safety of PT003, PT005, and PT001 in Subjects with Moderate-to-Very Severe COPD (PINNACLE-1) (NCT01854645) and the Multi-Center Study to Assess the Efficacy and Safety of PT003, PT005, and PT001 in Subjects with Moderate-to-Very Severe COPD (PINNACLE-2) (NCT01854658) trials investigated the efficacy and safety of a novel glycopyrrolate [GP]/formoterol [FF] 18/9.6-ÎŒg (GFF) metered dose inhaler (MDI) formulated using the Co-Suspension Delivery Technology in patients with moderate-to-very severe COPD. Methods These two phase III trials took place over 24 weeks and were randomized, double blind, and placebo controlled; 2,103 and 1,615 patients (40-80 years of age), respectively, were randomized. Patients received GFF MDI, GP MDI 18 ÎŒg, FF MDI 9.6 ÎŒg, or placebo MDI (all twice daily), or tiotropium 18 ÎŒg dry powder inhaler (once daily in PINNACLE-1 only [open-label active comparator]). Efficacy and safety were assessed. Results At week 24, differences in change from baseline in the morning predose trough FEV 1 for GFF MDI vs placebo MDI, GP MDI, and FF MDI were 150 mL, 59 mL, and 64 mL in PINNACLE-1 (all P P Conclusions We conclude that GFF MDI 18/9.6 ÎŒg demonstrated superiority over placebo and monocomponent MDIs and was well tolerated, thus providing an additional treatment option for patients with moderate-to-very severe COPD. Trial Registry ClinicalTrials.gov; No.: NCT01854645 and No. NCT01854658; URL: www.clinicaltrials.gov
Recommended from our members
Hydraulic fracturing experiments at 1500 m depth in a deep mine: Highlights from the kISMET project
In support of the U.S. DOE SubTER Crosscut initiative, we established a field test facility in a deep mine and designed and carried out
in situ hydraulic fracturing experiments relevant to enhanced geothermal systems (EGS) in crystalline rock to characterize the stress
field, understand the effects of rock fabric on fracturing, and gain experience in monitoring using geophysical methods. The project also
included pre- and post-fracturing simulation and analysis, and laboratory measurements and experiments. The kISMET (permeability
(k) and Induced Seismicity Management for Energy Technologies) site was established in the West Access Drift of the Sanford
Underground Research Facility (SURF) 4757 ft (1450 m) below ground (on the 4850 ft level (4850L)) in phyllite of the Precambrian
Poorman Formation. We drilled and continuously cored five near-vertical boreholes in a line on 3 m (10 ft) spacing, deviating the two
outermost boreholes slightly to create a five-spot pattern around the test borehole centered in the test volume 40 m below the drift invert
(floor) at a total depth of ~1490 m (4890 ft). Laboratory measurements of core from the center test borehole showed P-wave velocity
heterogeneity along each core indicating strong, fine-scale (~1 cm or smaller) changes in the mechanical properties of the rock. Field
measurements of the stress field by hydraulic fracturing showed that the minimum horizontal stress at the kISMET site averages 21.7
MPa (3146 psi) trending approximately N-S (356 degrees azimuth) and plunging slightly NNW at 12°. The vertical and horizontal
maximum stresses are similar in magnitude at 42-44 MPa (6090-6380 psi) for the depths of testing, which averaged approximately 1530
m (5030 ft). Hydraulic fractures were remarkably uniform suggesting core-scale and larger rock fabric did not play a role in controlling
fracture orientation. Analytical solutions suggest that the fracture radius of the large fracture (stimulation test) was more than 6 m (20
ft), depending on the unknown amount of leak-off
The Effect of Clinical Outbreaks of Salmonellosis on the Prevalence of Fecal Salmonella Shedding Among Dairy Cattle in New York
The objective of this study was to determine if the within-herd prevalence of fecal Salmonella shedding is higher in dairy herds with clinical outbreaks of disease, as compared to herds with subclinical infections only. Data were collected prospectively from dairy herds throughout New York that had at least 150 lactating cows and that received clinical service from participating veterinarians. After enrollment, Salmonella surveillance consisted of both environmental screening and disease monitoring within the herd. Herds positive by either environmental or fecal culture were sampled during three visits to estimate the within-herd prevalence of Salmonella. We characterized isolates by serovar and antimicrobial resistance pattern. Among 57 enrolled herds, 44 (77%) yielded Salmonella-positive samples during the study period; 27 (61%) of the positive herds had Salmonella isolated from environmental samples only, and 17 (39%) had one or more laboratory-confirmed clinical cases. The within-herd prevalence of fecal Salmonella shedding ranged from 0 to 53%. Salmonella Cerro was the predominant serovar, accounting for 56% of all isolates. Antimicrobial resistance ranged from zero to nine drugs, and 14 (32%) of the positive farms generated multidrug-resistant isolates. Herds with laboratory-confirmed clinical cases had a higher prevalence of fecal Salmonella shedding than herds that only generated positive environmental samples, as estimated by a Poisson regression model (prevalence ratio, 2.7; pâ=â0.01). An association between dairy herd outbreaks of salmonellosis and a higher prevalence of asymptomatic shedding should help guide strategies for reducing the public health threat of Salmonella, as the ability to recognize high-risk herds by clinical laboratory submissions presents an obvious opportunity to maximize food safety at the preharvest level. This is in contrast with other foodborne zoonotic pathogens, such as Campylobacter jejuni and Escherichia coli O157:H7, which occur widely in adult cattle without accompanying clinical disease
Bayesian probabilistic projections of life expectancy for all countries
We propose a Bayesian hierarchical model for producing probabilistic forecasts of male period life expectancy at birth for all the countries of the world to 2100. Such forecasts would be an input to the production of probabilistic population projections for all countries, which is currently being considered by the United Nations. To evaluate the method, we conducted an out-of-sample cross-validation experiment, fitting the model to the data from 1950-1995 and using the estimated model to forecast for the subsequent 10 years. The 10-year predictions had a mean absolute error of about 1 year, about 40 % less than the current UN methodology. The probabilistic forecasts were calibrated in the sense that, for example, the 80 % prediction intervals contained the truth about 80 % of the time. We illustrate our method with results from Madagascar (a typical country with steadily improving life expectancy), Latvia (a country that has had a mortality crisis), and Japan (a leading country). We also show aggregated results for South Asia, a region with eight countries. Free, publicly available R software packages called bayesLife and bayesDem are available to implement the method