85 research outputs found
The rent's too high: Self-archive for fair online publication costs
The main contributors of scientific knowledge, researchers, generally aim to
disseminate their findings far and wide. And yet, publishing companies have
largely kept these findings behind a paywall. With digital publication
technology markedly reducing cost, this enduring wall seems disproportionate
and unjustified; moreover, it has sparked a topical exchange concerning how to
modernize academic publishing. This discussion, however, seems to focus on how
to compensate major publishers for providing open access through a "pay to
publish" model, in turn transferring financial burdens from libraries to
authors and their funders. Large publishing companies, including Elsevier,
Springer Nature, Wiley, PLoS, and Frontiers, continue to earn exorbitant
revenues each year, hundreds of millions of dollars of which now come from
processing charges for open-access articles. A less expensive and equally
accessible alternative exists: widespread self-archiving of peer-reviewed
articles. All we need is awareness of this alternative and the will to employ
itComment: 8 pages, 1 figure, 19 reference
Neurofeedback with fMRI: A Critical Systematic Review
Neurofeedback relying on functional magnetic resonance imaging (fMRI-nf) heralds new prospects for self-regulating brain and behavior. Here we provide the first comprehensive review of the fMRI-nf literature and the first systematic database of fMRI-nf findings. We synthesize information from 99 fMRI-nf experiments—the bulk of currently available data. The vast majority of fMRI-nf findings suggest that self-regulation of specific brain signatures seems viable; however, replication of concomitant behavioral outcomes remains sparse. To disentangle placebo influences and establish the specific effects of neurofeedback, we highlight the need for double-blind placebo-controlled studies alongside rigorous and standardized statistical analyses. Before fMRI-nf can join the clinical armamentarium, research must first confirm the sustainability, transferability, and feasibility of fMRI-nf in patients as well as in healthy individuals. Whereas modulating specific brain activity promises to mold cognition, emotion, thought, and action, reducing complex mental health issues to circumscribed brain regions may represent a tenuous goal. We can certainly change brain activity with fMRI-nf. However, it remains unclear whether such changes translate into meaningful behavioral improvements in the clinical domain
Talent approaches for the South African automotive industry
Orientation:Â South African automotive organisations require talented employees to compete both nationally and on a global scale, within the setting of Industry 4.0.
Research purpose:Â This article was aimed at identifying talent management approaches for South African automotive organisations to ensure the availability of talent for Industry 4.0 talent demands.
Motivation for this study:Â In general, South African organisations struggle with securing, developing and retaining talent, a challenge aggravated by accelerated technological breakthroughs accompanying Industry 4.0.
Research approach/design and method: This article reports on the quantitative component of a combined method study conducted in South Africa’s automotive industry. Data were collected from operational and human resource management professionals in automotive organisations through convenience sampling.
Main findings:Â A greater collaborative effort is required of key stakeholders associated with the automotive industry and within automotive organisations to address the issue of talent in a holistic and focused manner.
Practical/managerial implications:Â The adoption of advanced technologies in the automotive industry necessitates the upskilling and reskilling of current employees, and a renewed focus on attracting talent specifically targeted for Industry 4.0 developments which require collaboration between government, automotive industry, and educational institutions.
Contribution/value-add:Â The article emphasised a holistic approach to talent supply and management for South African automotive organisations in consideration of Industry 4.0, with implications for the government, educational institutions and the automotive industry
Innate lymphoid cell characterization in the rat and their correlation to gut commensal microbes.
Innate lymphoid cells (ILCs) are important for tissue immune homeostasis, and are thoroughly characterized in mice and humans. Here, we have performed in-depth characterization of rat ILCs. Rat ILCs were identified based on differential expression of transcription factors and lack of lineage markers. ILC3s represented the major ILC population of the small intestine, while ILC2s were infrequent but most prominent in liver and adipose tissue. Two major subsets of group 1 ILCs were defined. Lineage- T-bet+ Eomes+ cells were identified as conventional NK cells, while lineage- T-bet+ Eomes- cells were identified as the probable rat counterpart of ILC1s based on their selective expression of the ILC marker CD200R. Rat ILC1s were particularly abundant in liver and intestinal tissues, and were functionally similar to NK cells. Single-cell transcriptomics of spleen and liver cells confirmed the main division of NK cells and ILC1-like cells, and demonstrated Granzyme A as an additional ILC1 marker. We further report differential distributions of NK cells and ILCs along the small and large intestines, and the association of certain bacterial taxa to frequencies of ILCs. In conclusion, we provide a framework for future studies of ILCs in diverse rat experimental models, and novel data on the potential interplay between commensals and intestinal ILCs
The Importance of Touch in Sport: Athletes’ and Coaches’ Reflections
This study examined athletes’ and coaches’ experiences of positive touch within the coach-athlete relationship, including examples of positive touch, reasons for the use of touch, and factors affecting athletes’ acceptability of touch. Semi-structured interviews were conducted with 10 coaches and 10 athletes from various sports. Data were coded using inductive and deductive coding techniques. All participants shared examples of positive touch in sport including: hugs, high fives, physical manipulation of the body, pats on the back, hand shaking, and spotting. Positive touch was reportedly used for affective, behavioural, safety, and cultural reasons. Touch was viewed by these athletes and coaches as being important and even necessary in the sport environment and within the coach-athlete relationship provided that it was individualized and contextualized. The findings are interpreted to suggest that the recent trend to avoid touch in child-populated domains ignores the many benefits of touch for health, instruction, and development
Dynamic two-axis curvature measurement using multicore fiber Bragg gratings interrogated by arrayed waveguide gratings
We describe the use of arrayed waveguide gratings (AWGs) in the interrogation of fiber Bragg gratings (FBGs) for dynamic strain measurement. The ratiometric AWG output was calibrated in a static deflection experiment over a ±200 με range. Dynamic strain measurement was demonstrated with a FBG in a conventional single-mode fiber mounted on the surface of a vibrating cantilever and on a piezoelectric actuator, giving a resolution of 0.5 με at 2.4 kHz. We present results of this technique extended to measure the dynamic differential strain between two FBG pairs within a multicore fiber. An arbitrary cantilever oscillation of the multicore fiber was determined from curvature measurements in two orthogonal axes at 1125 Hz with a resolution of 0.05 m-1. © 2006 Optical Society of America
Two-axis accelerometer based on multicore fibre Bragg gratings
We report an accelerometer based upon a simple fibre cantilever constructed from a short length of multicore fibre(MCF) containing fibre Bragg gratings (FBGs). Two-axis measurement is demonstrated up to 3 kHz
Strain and temperature sensitivity of a single-mode polymer optical fiber
We have measured the optical phase sensitivity of fiber based on poly(methyl methacrylate) under near-single-mode conditions at 632.8 nm wavelength. The elongation sensitivity is 131±3 × 105 rad m-1 and the temperature sensitivity is -212±26 rad m -1 K-1. These values are somewhat larger than those for silica fiber and are consistent with the values expected on the basis of the bulk polymer properties. © 2005 Optical Society of America
Radial deformation measurement of a cylinder under compression using multicore fibre
A multicore fibre (MCF) sensor to measure the radial deformation of a compliant cylinder under compression is presented. The sensor is connectorised and need not be permanently bonded to the test object. A differential measurement technique using FBGs written into the MCF makes the sensor temperature insensitive. FBG measurement of axial strain of a cylinder under compression is also reported
Sustaining the future of HIV counselling to reach 90-90-90 : a regional country analysis
Introduction: Counselling services are recommended by the World Health Organization and have been partially adopted by national HIV guidelines. In settings with a high HIV burden, patient education and counselling is often performed by lay workers, mainly supported with international funding. There are few examples where ministries of health have been able to absorb lay counsellors into their health systems or otherwise sustain their work. We document the role of lay cadres involved in HIV testing and counselling and adherence support and discuss approaches to sustainability.
Methods: We focused on a purposive sample of eight sub-Saharan African countries where Medecins Sans Frontieres supports HIV programmes: Guinea, Lesotho, Malawi, Mozambique, South Africa, Swaziland, Zambia and Zimbabwe. We reviewed both published and grey literature, including national policies and donor proposals, and interviewed key informants, including relevant government staff, donors and non-governmental organizations.
Results and discussion: Lay counsellors play a critical role in scaling up HIV services and addressing gaps in the HIV testing and treatment cascade by providing HIV testing and counselling and adherence support at both the facility and community levels. Countries have taken various steps in recognizing lay counsellors, including harmonizing training, job descriptions and support structures. However, formal integration of this cadre into national health systems is limited, as lay counsellors are usually not included in national strategies or budgeting.
Conclusions: The current trend of reduced donor support for lay counsellors, combined with lack of national prioritization, threatens the sustainability of this cadre and thereby quality HIV service delivery
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