55 research outputs found
Healing Peatlands to Protect Our Planet
Peat is interesting; it is very wet and made from old plants and animals breaking down very slowly. Even though peatlands are just 3% of the land, they lock away 30% of Earth’s carbon. But sometimes people mess things up by draining the peatlands and digging up the peat, which releases carbon into the atmosphere and contributes to the warming of our planet. But do not worry; we can save the day! We can put water back in the peatlands to bring them back to life so they can lock carbon again. Sphagnum—the Latin name of a peat moss—is the hero here! This special moss can support peat formation and be used for gardening and growing food. Ready to help save peatlands and protect the planet? Keep reading
Topsoil removal for Sphagnum establishment on rewetted agricultural bogs
Rewetting drained agricultural peatlands aids in restoring their original ecosystem functions, including carbon storage and sustaining unique biodiversity. 30–60 cm of topsoil removal (TSR) before rewetting for Sphagnum establishment is a common practice to reduce nutrient concentrations and greenhouse gas emissions, and increase water conductivity. However, the topsoil is carbon-dense and preservation in situ would be favorable from a climate-mitigation perspective. The effect of reduced TSR on Sphagnum establishment and nutrient dynamics on degraded and rewetted raised bogs remains to be elucidated. We conducted a two-year field experiment under Sphagnum paludiculture management with three TSR depths: no-removal (TSR0), 5–10 cm (TSR5), and 30 cm (TSR30) removal. We tested the effects of TSR on Sphagnum establishment and performance, nutrient dynamics, and hotspot methane emissions. After two years, TSR5 produced similar Sphagnum biomass as TSR30, while vascular plant biomass was highest in TSR0. All capitula nitrogen (N > 12 mg/g) indicated N-saturation. Phosphorus (P) was not limiting (N/P  3). In TSR0, ammonium concentrations were > 150 µmol/l in year one, but decreased by 80% in year two. P-concentrations remained high (c. 100 µmol/l) at TSR0 and TSR5, and remained low at TSR30. TSR30 and TSR5 reduced hotspot methane emissions relative to TSR0. We conclude that all TSR practices have their own advantages and disadvantages with respect to Sphagnum growth, nutrient availability and vegetation development. While TSR5 may be the most suitable for paludiculture, its applicability for restoration purposes remains to be elucidated. Setting prioritized targets when selecting the optimal TSR with peatland rewetting is pivotal
Building the Games Students Want to Play: BiblioBouts Project Interim Report #2
The University of Michigan’s School of Information and its partner, the Center for
History and New Media at George Mason University, are undertaking the 3-year
BiblioBouts Project (October 1, 2008 to September 30, 2011) to support the design,
development, testing, and evaluation of a computer game to teach incoming
undergraduate students information literacy skills and concepts. This second interim
report describes the project team’s 5-month progress achieving 2 of the project’s 4
objectives, designing the BiblioBouts game and engaging in evaluation activities. It also
enumerates major tasks that will occupy the team for the next 6 months. Appendixes A
and B describe the game’s design and include pedagogical goals and how the game
scores players.Institute of Museum and Library Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/64293/1/bbInterimReportToIMLS02.pd
Building the Games Students Want to Play: BiblioBouts Project Interim Report #3
The University of Michigan's School of Information and its partner, the Center for
History and New Media at George Mason University, are undertaking the 3-year
BiblioBouts Project (October 1, 2008 to September 30, 2011) to support the design,
development, testing, and evaluation of the web-based BiblioBouts game to teach
incoming undergraduate students information literacy skills and concepts. This third
interim report describes the BiblioBouts Project team’s 6-month progress achieving the project's 4 objectives: designing, developing, deploying, and evaluating the BiblioBouts game and recommending best practices for future information literacy games. This latest 6-month period was marked by extensive progress in the deployment and evaluation of the alpha version of BiblioBouts. Major tasks that will occupy the team for the next 6 months are applying evaluation findings to game redesign and enhancement. For general information about game design, pedagogical goals, scoring, game play, project participants, and playing BiblioBouts in your course, consult the BiblioBouts Project web site.Institute of Museum and Library Serviceshttp://deepblue.lib.umich.edu/bitstream/2027.42/69157/1/bbInterimReportToIMLS03.pd
Valeur diagnostique et pronostique de la surexpression de p16 INK4a dans les lésions malpighiennes intraépithéliales de bas grade du col utérin (corrélation à l'évolution clinique et au typage HPV. Etude rétrospective. A propos de 154 cas.)
STRASBOURG-Medecine (674822101) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF
Body mass dependent use of hibernation: why not prolong the active season, if they can?
Hibernation is the most effective means for energy conservation during winter in mammals. The drawbacks of deep and prolonged torpor include reduced,immunocompetence, and consequently, hibernators should be selected to minimize torpor expression when climatic conditions or energy availability (e.g. food or fat stores) permit. Therefore, it seems surprising that some hibernators employ extraordinary long hibernation seasons, lasting well beyond periods with unfavourable conditions. Because of their extended use of torpor, edible dormice ('Glis glis') provide an ideal model for scrutinizing interactions between energy reserves (i.e. body fat stores) and thermoregulatory patterns. We used a multimodel inference approach to analyse body temperature data (i.e. use of torpor) from 42 entire hibernation seasons over 4 years in females in relation to body mass. Body mass prior to hibernation did not affect the duration of the hibernation season, but animals hibernated for 'c'. 8 months, that is, 2 months longer than required by environmental conditions. Fatter individuals aroused significantly more often, had a higher mean minimum body temperature during torpor and remained euthermic for longer periods than leaner animals. Surplus energy was therefore not used to shorten the hibernation season, but to rewarm more frequently, and to allow shallower torpor bouts. These adjustments apparently serve to avoid negative effects of torpor and, perhaps equally importantly, to minimize the time active above-ground. We argue that maintaining a short active season, despite surplus energy reserves, may be explained by known beneficial effects of hibernation on survival rates (via predator avoidance). Our data provide quantitative evidence that hibernation is a flexible tool within life-history strategies. We conclude that, apart from energetic necessities due to harsh environmental conditions, predator avoidance may be an important factor influencing patterns of hibernation and torpor in mammals. Thus, our study indicates that climatic conditions alone are not a good predictor of hibernation patterns or survival in hibernating species during global climate change
Vestibular Rehabilitation as an Early Intervention in Athletes Who are Post-concussion: A Systematic Review
# Background
Sports-related concussions (SRC) are a common injury sustained by many athletes of all different age groups and sports. The current standard treatment is rest followed by aerobic activity. Minimal research has been done on the effects of vestibular rehabilitation for concussion treatment, especially in physical therapy practice.
# Objective
The purpose of this study was to examine the effects of early intervention of vestibular rehabilitation (VRT) on an athlete’s time to return to play compared to rest alone.
# Study Design
Systematic Review
# Methods
Two searches were conducted (August 2021 and January 2022) using databases: CINAHL complete, MEDLINE, PubMed, and Wiley online database. One hand search was performed to find relevant articles. Search terms included “vestibular rehabilitation” or “vestibular therapy” and “concussion” or “mild traumatic brain injury” or “mTBI” and “athletes” or “sports” or “athletics” or “performance”, and “early interventions” or “therapy” or “treatment”. Inclusion criteria were athletes with a SRC, incorporation of vestibular rehabilitation in athletes’ recovery, and early vestibular intervention tools. Tools used to assess quality and risk of bias were the PEDro scale and the _Oxford Centre for Evidence-Based Medicine 2011 Levels of Evidence_. The PRISMA method for determining inclusion and exclusion criteria.
# Results
Eleven articles were included, six randomized control trials and five retrospective cohort studies. Various balance interventions, visual interventions utilizing vestibulo-ocular reflex (VOR), and cervical manual therapy were used during VRT for athletes’ post-concussion. Incorporating visual interventions and cervical manual therapy into early rehabilitation significantly reduced symptoms and time to return to sport. However, balance interventions did not have a significant effect on reducing time to return to sport when used as a sole intervention.
# Conclusion
Addressing VRT deficits in the acute stages of a concussion may contribute to a quicker resolution of symptoms and a quicker return to sport. More research needs to be performed to determine the effectiveness of early intervention of VRT in concussion recovery.
# Level of Evidence
- …