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Neurodegenerative disorders are an increasingly common and irreversible burden on society, often affecting the aging population, but their etiology and disease mechanisms are poorly understood. Studying monogenic neurodegenerative diseases with known genetic cause provides an opportunity to understand cellular mechanisms also affected in more complex disorders. We recently reported that loss-of-fu
We prove that for k ≫; 4√n regular resolution requires length nω(k) to establish that an ErdÅ's-Rényi graph with appropriately chosen edge density does not contain a k-clique. This lower bound is optimal up to the multiplicative constant in the exponent and also implies unconditional nω(k) lower bounds on running time for several state-of-the-art algorithms for finding maximum cliques in graphs.
In order to find out whether an interval appendectomy is necessary after an appendicitis with a palpable mass, we retrospectively studied the reports of 50 patients who underwent an interval appendectomy. Out of the 50 patients 5 (10%) developed complications of the appendiceal mass. Intraoperative findings of the interval appendectomy: 32 (64%) had adhesions; 2 (4%) appendices were resorbed; 2 (4
We prove that unary Sherali-Adams requires proofs of size nΩ(d) to rule out the existence of an nΘ(1)-clique in Erdős-Rényi random graphs whose maximum clique is of size d ≤ 2 log n. This lower bound is tight up to the multiplicative constant in the exponent. We obtain this result by introducing a technique inspired by pseudo-calibration which may be of independent interest. The technique involves
In mitosis, most transcription factors detach from chromatin, but some are retained and bookmark genomic sites. Mitotic bookmarking has been implicated in lineage inheritance, pluripotency and reprogramming. However, the biological significance of this mechanism in vivo remains unclear. Here, we address mitotic retention of the hemogenic factors GATA2, GFI1B and FOS during haematopoietic specifica
Improvements in metabolite-profiling techniques are providing increased breadth of coverage of the human metabolome and may highlight biomarkers and pathways in common diseases such as diabetes. Using a metabolomics platform that analyzes intermediary organic acids, purines, pyrimidines, and other compounds, we performed a nested case-control study of 188 individuals who developed diabetes and 188
Objective. The association between smoking and idiopathic inflammatory bowel disease is well known; smoking seems to have a diverse effect. Crohn's disease is associated with smoking, while ulcerative colitis is associated with non-smoking. Data on smoking in microscopic colitis of the collagenous type (CC) are lacking. The aim of this investigation was to study smoking habits in CC and to observe
Popular science summary: Is RpS6 activation important for leukemia cell progression? Acute Myeloid Leukemia (AML) is the most common acute blood cancer in adults. It is characterized by a rapid increase of leukemic cells in the bone marrow, compromising the development of new blood cells. Despite improvement in treatments and advancements in supportive care, the overall 5-years survival of AML i
We prove that for k ≪ 4 n regular resolution requires length nΩ(k) to establish that an Erdős–Rényi graph with appropriately chosen edge density does not contain a k-clique. This lower bound is optimal up to the multiplicative constant in the exponent, and also implies unconditional nΩ(k) lower bounds on running time for several state-of-the-art algorithms for finding maximum cliques in graphs.
Pancreatic endocrine cell differentiation depends on transcription factors that also contribute in adult insulin and glucagon gene expression. Islet cell development was examined in mice lacking MafB, a transcription factor expressed in immature alpha (glucagon(+)) and beta (insulin(+)) cells and capable of activating insulin and glucagon expression in vitro. We observed that MafB(-/-) embryos had
This chapter contributes an original description of a very different structuring arrangement of sentencing institutionalized through the Danish prosecution service since the 1990s. The prosecution service has attained a new and bigger role and new techniques add significantly to the structuring of sentencing. The techniques of structuring sentencing are: preparatory works to statutory amendments,
The so-called Substituted Judgment Standard is one of several competing principles on how certain health care decisions ought to be made for patients who are not themselves capable of making decisions of the relevant kind. It says that a surrogate decision-maker, acting on behalf of the patient, ought to make the decision the patient would have made, had the latter been competent. The most common
The location of embryonic lymph node development is determined by the initial clustering of lymphoid tissue-inducer (LTi) cells. Here we demonstrate that both the chemokine CXCL13 and the chemokine CCL21 attracted LTi cells at embryonic days 12.5-14.5 and that initial clustering depended exclusively on CXCL13. Retinoic acid (RA) induced early CXCL13 expression in stromal organizer cells independen
In cities, land-use decisions made during planning processes determine the availability of ecosystem services fundamental to the wellbeing of urban population. Hence, the inclusion of ecosystem services in planning is essential to promote sustainable urban development. This article investigates to what extent ecosystem services are currently included in urban plans. The ultimate objective is to un
MreB forms a cytoskeleton in many rod-shaped bacteria which is involved in cell shape determination and chromosome segregation. PCR-based and Southern analysis of various actinomycetes, supported by analysis of genome sequences, revealed mreB homologues only in genera that form an aerial mycelium and sporulate. We analysed MreB in one such organism, Streptomyces coelicolor. Ectopic overexpression
The paper is based on a study of hunting tourism enterprising in Sweden. The study examines how hunting tourism businesses in Sweden navigate in a complex social, economic and moral environment. The aim of the present paper is to identify how tensions between a market- oriented value sphere and a value sphere based on friendship- and community reciprocity are played out in hunting tourism entrepre
