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När rovfåglar flyttar använder de antingen glid- och kretsflykt eller en kombination av glid och aktiv flykt. Energikonsumtionen vid aktiv flykt ökar snabbt med ökad kroppsvikt och används därför oftast av mindre rovfågelarter så som falkar, sparvhökar och kärrhökar. Glid- och kretsflykt används till mycket stor utsträckning av de större och tyngre arterna som vråkar, glador och örnar, som då är bRaptors migrate by using either soaring and gliding flight or a combination of gliding and powered flight. The energy consumption when using powered flight increases rapidly with body mass and is therefore mainly used by the smaller raptors, such as Falcons, Sparrowhawks and Harriers. Soaring and gliding flight are mainly used by the larger raptors such as Buzzards, Kites and Eagles. When using so

ackground: Exclusive breastfeeding during the first six months of life is a global public health recommendation and offers well-established and significant benefits for infant health and development, as well as health benefits for women. Most breastfeeding research focuses on the early postpartum period, despite the WHO recommendations to continue breastfeeding for up to two years or longer. Inves

Chinese hamster ovary (CHO) cells in the plateau phase were seeded in the absence or presence of 5 mM 2-difluoromethylornithine (F(2)MeOrn), an enzyme-activated irreversible inhibitor of ornithine decarboxylase. The thymidine analogue bromodeoxyuridine (BrdUrd, 5 mu M) was added to the culture medium 30 min before sampling of the cells, which occurred 1-17 h after seeding. Using flow cytometry, co

Marginalized communities in Southern contexts are among those most vulnerable to the effects of our drastically changing climate and environmental systems. Therefore, pathways leading to the transformation of our unsustainable systems, structures, and behaviors affecting these communities must be explored. To achieve transformation, some researchers argue that social learning is one such pathway.

Ett centralt problem i skogsbruket är att balansera mål för natur och produktion. Den avvägningen är inte bara viktigt på beståndsivå, utan det är även viktigt för att tänka på biologisk mångfald och ekosystemtjänster på landskapsnivå. I Sverige, har privata skogsägare ett eget ansvar för skogsbruk, och dem tar beslut om skötsel främst på fastighets- eller beståndsnivå. I skogsbruket sker idag natA central tension within forestry is balancing timber production and nature. This tradeoff is important when managing individual stands, but also has effects on biodiversity across spatial and temporal scales. In Sweden, private landowners are officially responsible for forest management, and these decisions are mostly taken at the property or stand level. While ecologists increasingly try to enco

Patterns of correlations among judgments of targets on different attributes are the basis for common psychometric procedures such as factor analysis and network modeling. The outcomes of such analyses may shape the images (i.e., theories) that we as scientists have of the phenomena that we study. However, key conceptual issues tend to be overlooked in these analyses, which is especially problemati

One of the most important travelers of the 18th century was Jakob Jonas Björnståhl. From a young age, he aspired to reach prominence in academic circles. Greek, Latin, and various Middle Eastern languages were part of his studies from the outset, and he distinguished himself by his enthusiasm, thirst for knowledge, and ability to quickly master diverse subjects, along with his encyclopedic educati

Combinatorial screening methodology has been employed to select new affinity specific ligands to bilogical and artificial receptors. The screening methodology, in particular screening of combinatorial phage display peptide libraries against target molecules differing in function and shape, is focused upon. A linear combinatorial phage display hexapeptide library has been used to select novel pept

Background: No liquid biomarkers are approved in renal cell carcinoma (RCC), making early detection of recurrence in surgically treated nonmetastatic (M0) patients dependent on radiological imaging. Urine- and plasma free glycosaminoglycan profiles—or free GAGomes—are promising biomarkers reflective of RCC metabolism. Objective: To explore whether free GAGomes could detect M0 RCC recurrence noninv

Of 30 bacterial species tested 18 stimulated DNA synthesis in human blood lymphocytes. The maximum response was after 3-4 days of culture suggesting a mitogenic effect. This was confirmed by the induction of polyclonal antibody production shown by a plaque assay. Most bacterial species increased the DNA synthesis in B-enriched lymphocytes and unseparated lymphocytes but had negligible activity on

https://www.lu.se/evenemang/maryam-hashempour-final-attachment - 2026-07-02

Angiogenesis provides growing tumors a source of nutrients and oxygen, and a route for metastatic dissemination. In recent years anti-angiogenic therapies that primarily target the vascular endothelial growth factor (VEGF) signaling cascade have entered the clinic. However in practice, these have encountered unexpected mechanisms of resistance in many solid tumors, highlighting the need for furthe

Pareto optimality is a concept that formalises the trade-off between a given set of mutually contradicting objectives. A solution is said to be Pareto optimal when it is not possible to improve one objective without deteriorating at least one of the other. A set of Pareto optimal solutions constitute the Pareto front. The Pareto concept applies well to the inverse planning process, which involves

The libraries at Lund University have common lending conditions, and as a student or employee at the university, you use your LU card as your library card. If you are not affiliated with the university, you can obtain an external library card. In our search tool Finn, you can search for literature and manage your loans. The library catalogue You can use Finn, our search tool, to search for literat

https://www.lub.lu.se/en/services-and-support/loans - 2026-07-01