Development of a comprehensive clinical assessment protocol for low back and hip pain in powerlifters: a feasibility study.

Background: Low back and hip pain problems are frequent in powerlifting. There is a lack of information on the specific pain phenotypes and specific impairments in body function associated with these pain problems, as well as how to reach a clinical diagnosis relevant for powerlifters' pain problems. Therefore, the aim was to develop a comprehensive clinical assessment protocol for pain and function in powerlifters with low back and/or hip pain and evaluate its feasibility for use in further epidemiological or clinical studies of powerlifters.

Hypotheses and tracking results about the longest migration: The case of the arctic tern.

The arctic tern completes the longest known annual return migration on Earth, traveling between breeding sites in the northern arctic and temperate regions and survival/molt areas in the Antarctic pack-ice zone. Salomonsen (1967, , , 1) put forward a hypothetical comprehensive interpretation of this global migration pattern, suggesting food distribution, wind patterns, sea ice distribution, and molt habits as key ecological and evolutionary determinants. We used light-level geolocators to record 12 annual journeys by eight individuals of arctic terns breeding in the Baltic Sea.

Predation leads to assembly rules in fragmented fish communities.

Diamond [Assembly of species communities. In: Ecology and Evolution of Communities (eds Cody, M.L.

Converging migration routes of Eurasian hobbies Falco subbuteo crossing the African equatorial rain forest.

Autumn migration of adult Eurasian hobbies Falco subbuteo from Europe to southern Africa was recorded by satellite telemetry and observed routes were compared with randomly simulated routes. Two non-random features of observed routes were revealed: (i) shifts to more westerly longitudes than straight paths to destinations and (ii) strong route convergence towards a restricted area close to the equator (1 degree S, 15 degrees E). The birds migrated south or southwest to approximately 10 degrees N, where they changed to south-easterly courses.

Circumnavigating misfolding traps in the energy landscape through protein engineering: suppression of molten globule and aggregation in carbonic anhydrase.

The native state of the enzyme human carbonic anhydrase (HCA II) has been stabilized by the introduction of a disulfide bond, the oxidized A23C/L203C mutant. This stabilized protein variant undergoes an apparent two-state unfolding process with suppression of the otherwise stable equilibrium, molten-globule intermediate, which is normally very prone to aggregation. Stopped-flow measurements also showed that lower amounts of the transiently occurring molten globule were formed during refolding.