Publications by authors named "Robert Schaefer"

The COVID-19 pandemic has had disruptive effects on all parts of the health-care system, including the continuing education (CE) landscape. This report documents, what has happened in six different CE accreditation systems to CE activities as well as learners. Complete lockdown periods in the first part of the COVID-19 pandemic have inevitably led to reductions in numbers of the then predominant format of education, i.

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Due to the prevalence of chronic pain worldwide, there is an urgent need to improve pain management strategies. While opioid drugs have long been used to treat chronic pain, their use is severely limited by adverse effects and abuse liability. Neurostimulation techniques have emerged as a promising option for chronic pain that is refractory to other treatments.

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Background: Obesity is a chronic relapsing disorder that is caused by an excess of caloric intake relative to energy expenditure. There is growing recognition that food motivation is altered in people with obesity. However, it remains unclear how brain circuits that control food motivation are altered in obese animals.

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We investigate the impact of conjugate photoelectrons (CPEs) on the topside (∼600 km altitude) ionosphere at low and midlatitudes using measurements of the ion temperature, density, and composition from the first Republic of China satellite during a period of the high to moderate solar activity (March 1999 to June 2004). Elevated ion temperatures and densities are observed in the dark Northern American-Atlantic sector during the December solstice and in the Australian sector during the June solstice. The oxygen ion fraction and density are also elevated at these locations.

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The strength of the stalk rind, measured as rind penetrometer resistance (RPR), is an important contributor to stalk lodging resistance. To enhance the genetic architecture of RPR, we combined selection mapping on populations developed by 15 cycles of divergent selection for high and low RPR with time-course transcriptomic and metabolic analyses of the stalks. Divergent selection significantly altered allele frequencies of 3,656 and 3,412 single- nucleotide polymorphisms (SNPs) in the high and low RPR populations, respectively.

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A gene's response to an environment is tightly bound to the underlying genetic variation present in an individual's genome and varies greatly depending on the tissue it is being expressed in. Gene co-expression networks provide a mechanism to understand and interpret the collective transcriptional responses of genes. Here, we use the Camoco co-expression network framework to characterize the transcriptional landscape of adipose and gluteal muscle tissue in 83 domestic horses (Equus caballus) representing 5 different breeds.

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Equine Genotyping Arrays.

Vet Clin North Am Equine Pract

August 2020

High-quality genomic tools have been integral in understanding genomic architecture and function in the modern-day horse. The equine genetics community has a long tradition of pooling resources to develop genomic tools. Since the equine genome was sequenced in 2006, several iterations of high throughput genotyping arrays have been developed and released, enabling rapid and cost-effective genotyping.

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Peanut is an important legume providing products with nutrient dense including mineral nutrition. However, the genetic basis underlying the variations in the mineral composition in peanut is still unknown. Genome-wide association studies (GWAS) of the concentrations of 13 mineral elements combined with coexpression network were performed using a diverse panel of 120 genotypes mainly selected from the U.

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Article Synopsis
  • The study explores the use of Y chromosome analysis to trace paternal lineage in horses, focusing on the fine-scaled haplotyping of various breeds.
  • Researchers sequenced a draft reference of the Y chromosome, identifying 58 haplotypes and three major haplogroups, with significant findings in Central European and North American horse breeds.
  • The project resolved historical lineage questions, particularly concerning English Thoroughbred stallions and the parentage of 'Galopin', and highlighted rapid diversification in male lineages after horse domestication.
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Genome-wide association studies (GWAS) have identified loci linked to hundreds of traits in many different species. Yet, because linkage equilibrium implicates a broad region surrounding each identified locus, the causal genes often remain unknown. This problem is especially pronounced in nonhuman, nonmodel species, where functional annotations are sparse and there is frequently little information available for prioritizing candidate genes.

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In Europe, there are currently some 30 different jurisdictions and no overarching legislation regarding CME-CPD accreditation, since legislative competency related to national health-care systems lies with national authorities. Thus, public demonstration of professional agreement regarding the principles, rules and practice of CME-CPD as well as its accreditation is a highly desirable professional and political objective in Europe, where free movement and freedom to offer professional (medical) services is a key feature of the EU vision of the single market. The newly formed association of independent European accreditors, Continuing Medical Education - European Accreditors (CME-EA) is committed to offering a platform for dialogue between individuals and organisations involved in definition of professional codes in general, and accreditation of CME-CPD in particular on the national level.

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Context: With ISS-SOLAR-SolACES, a new approach in terms of calibrating solar spectral irradiance (SSI) data was validated during the mission period from 2008 to 2017: an ionization chamber (IC) as primary detector standard, operated in space, allowed daily calibration measurements.

Issue: Though primary photo-ionization efficiencies and higher-order ionization effects from photoelectrons are constant with time, filter transmissions and signal contributions from solar x-rays are to be determined for the SSI data evaluation, requiring a deeper investigation.

Aims And Methods: The experiences made with ionization chambers in the laboratory and aboard the ISS-SOLAR-SolACES mission are presented.

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Selective breeding for athletic performance in various disciplines has resulted in population stratification within the American Quarter Horse (QH) breed. The goals of this study were to utilize high density genotype data to: (1) identify genomic regions undergoing positive selection within and among QH subpopulations; (2) investigate haplotype structure within each QH subpopulation; and (3) identify candidate genes within genomic regions of interest (ROI), as well as biological pathways, predicted to play a role in elite performance in each group. For that, 65K SNP genotyping data on 143 elite individuals from 6 QH subpopulations (cutting, halter, racing, reining, western pleasure, and working cow) were imputed to 2M SNPs.

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Background: Severe equine asthma, also known as recurrent airway obstruction (RAO), is a debilitating, performance limiting, obstructive respiratory condition in horses that is phenotypically similar to human asthma. Past genome wide association studies (GWAS) have not discovered coding variants associated with RAO, leading to the hypothesis that causative variant(s) underlying the signals are likely non-coding, regulatory variant(s). Regions of the genome containing variants that influence the number of expressed RNA molecules are expression quantitative trait loci (eQTLs).

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The Cologne Consensus Conference 2015 has focused on "Providers in accredited CME[continuing medical education]/CPD [continuing professional development]". As an outcome of the CCC 2015, the authors of this paper, who were part of the faculty, propose a contemporary definition of the roles and responsibilities of stakeholders involved in the different stages of planning, delivery and evaluation of CME/CPD.

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This position paper is the result of a collaborative approach of several European Specialty Accreditation Boards (ESABs) and, has been stimulated by their current experience in accreditation regarding roles and responsibilities assumed by sponsors of accredited continuing medical education (CME). The suggestions made in this paper aim to preserve the fundamental principle in CME accreditation that the physician in charge of the programme has sole responsibility for the selection of topics, speakers, content and format, as well as mode of presentation, and that sponsors will under no circumstances interfere with this principle. This is considered as a responsibility of an individual physician (or physicians), which cannot be delegated, even in part, to third parties.

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Background: To date, genome-scale analyses in the domestic horse have been limited by suboptimal single nucleotide polymorphism (SNP) density and uneven genomic coverage of the current SNP genotyping arrays. The recent availability of whole genome sequences has created the opportunity to develop a next generation, high-density equine SNP array.

Results: Using whole genome sequence from 153 individuals representing 24 distinct breeds collated by the equine genomics community, we cataloged over 23 million de novo discovered genetic variants.

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The Y chromosome directly reflects male genealogies, but the extremely low Y chromosome sequence diversity in horses has prevented the reconstruction of stallion genealogies [1, 2]. Here, we resolve the first Y chromosome genealogy of modern horses by screening 1.46 Mb of the male-specific region of the Y chromosome (MSY) in 52 horses from 21 breeds.

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biofilm infections are difficult to treat with antibiotic therapy in part because the biofilms contain subpopulations of dormant antibiotic-tolerant cells. The dormant cells can repopulate the biofilms following alleviation of antibiotic treatments. While dormant, the bacteria must maintain cellular integrity, including ribosome abundance, to reinitiate the de novo protein synthesis required for resuscitation.

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Background: Gene duplication is prevalent in many species and can result in coding and regulatory divergence. Gene duplications can be classified as whole genome duplication (WGD), tandem and inserted (non-syntenic). In maize, WGD resulted in the subgenomes maize1 and maize2, of which maize1 is considered the dominant subgenome.

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Article Synopsis
  • Co-expression networks help determine gene functions, especially when little is known about specific genes, making them a valuable tool in genetics.
  • Advances in next-generation sequencing have enabled the construction of these networks in non-model species, highlighting their relevance in important agricultural crops.
  • The review covers key concepts, applications in agriculture, and future challenges of using co-expression networks in crop science, emphasizing the potential for improved understanding of plant gene regulation.
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Nonsyndromic cleft lip with or without cleft palate (NSCL/P) is one of the most common congenital birth defects. NSCL/P is a complex multifactorial disease caused by interactions between multiple environmental and genetic factors. However, the causal single nucleotide polymorphism (SNP) signature profile underlying the risk of familial NSCL/P still remains unknown.

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In the spring of 2015, the European Board for Accreditation in Cardiology (EBAC) collaborated with International CME/CPD Consulting to design and administer a survey to approximately 1,171 professionals active in the field of European CME/CPD, with a focus on cardiology. With a nearly 5% response rate, the results herewith are non-representative, but do express current behaviours and attitudes of those active in European accredited CME/CPD.

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