Sökresultat

We report results from a large-scale nutrient fertilization experiment along a "megadiverse" (154 unique species were included in the study) 3,000-m elevation transect in the Peruvian Andes and adjacent lowland Amazonia. Our objectives were to test if nitrogen (N) and phosphorus (P) limitation shift along this elevation gradient, and to determine how an alleviation of nutrient limitation would man

Double-sided three-dimensional porous silicon chips, 6 mm x 6 mm, covered with a 40 nm gold (nano)layer, were fabricated from a porous silicon wafer. Scanning electron microscopy along with electrochemical characterisation showed sample conductivity, mechanical stability, and high surface area of the thus fabricated devices, viz. 10 times higher electrochemically active surface area compared to th

Four dilute-acid pretreated and hydrolysed lignocellulosic raw materials were evaluated as substrates for fermentative hydrogen production by Caldicellulosiruptor saccharolyticus. Their fermentability was ranked in the order: barley straw > wheat straw > corn stalk > corn cob. The content of 5-hydroxymethylfurfural (HMF) in medium with hydrolysates prepared from corn cob (1.0 g/L) and corn stalk (

Popular Abstract in Swedish Denna studie undersöker hur talparagrafen (le paragraphe oral), såsom den definierats av Morel och Danon-Boileau 1998, struktureras och används i L1 franska, i L1 svenska och i L2 franska hos två svenska avancerade inlärare. Den undersökta korpusen består av sju informella och spontana endolingvala och exolingvala samtal. Studien är både kontrastiv och longitudinell i dThis study examines the structure and the use of the speech paragraph (le paragraphe oral), as defined by Morel and Danon-Boileau 1998, in L1 French, in L1 Swedish and in the L2 French production of two advanced Swedish learners. The corpus examined consists of seven informal spontaneous endolingual and exolingual conversations. The study is not only contrastive, but also longitudinal, in the sens

The main objective was to study the effect on progression-free survival (PFS) of adding erlotinib to bevacizumab as maintenance treatment following chemotherapy and bevacizumab as first-line treatment of metastatic colorectal cancer (mCRC).

Leaf-cutting ants combine large-scale herbivory with fungus farming to sustain advanced societies. Their stratified colonies are major evolutionary achievements and serious agricultural pests, but the crucial adaptations that allowed this mutualism to become the prime herbivorous component of neotropical ecosystems has remained elusive. Here we show how coevolutionary adaptation of a specific enzy

En berättelse om entreprenaden bakom byggandet av Lunds domkyrka. Den lokala aristokratins erfarenhet av entreprenader, anskaffandet av arbetskraft och Harald Blåtands första etablering i Lund inleder redogörelsen. Den första byggnaden på kyrkoplatsen, troligen ett kloster, får byggnadsmaterialet fråm Helsingborg- och Ystadstrakten. Den stående domkyrkans sten kommer från Hallaröd/Munkarp. En fyll

In the framework of robotics, Reinforcement Learning (RL) deals with the learning of a task by the robot itself. This paper presents a hierarchical planning approach in which the robot learns the optimal behavior for different levels. For high-level discrete actions, Q-learning was chosen, whereas for the low level we utilize Policy Improvement with Path Integrals (PI^2) algorithm to learn the par

The impact of soil metal pollution on plant communities has been studied extensively in the past.However, very little is known about the fungal species that co-occur with these plant communities onmetal polluted soils.We characterized the belowground fungal community in a heavy metal polluted anda non-polluted soil using 454 pyrosequencing. The fungal communities at both study sites were shown toc

Objectives: To analyze the clinicopathological characteristics and prognostic factors associated with survival in patients with central nervous system (CNS) metastases from epithelial ovarian cancer. Methods: Twenty patients with CNS involvement from ovarian carcinoma were evaluated in this retrospective study; their features and survivals were analyzed using Kaplan-Meier and log-rank test methods

Objectives: The aim of this study was to evaluate our experience with patients affected by ovarian carcinosarcoma. Patients and Methods: During a 16-year period, data on 13 patients with ovarian carcinosarcoma were collected. They were obtained from hospital charts and follow-up visits. Survival curves were estimated by the Kaplan-Meier method and compared using the log-rank test. All tests were t

Det här är en avhandling om livsstilsbutiker och de handlare som driver dem. Livsstilsbutiker är affärer där olika produkter och tjänster erbjuds och gestaltas som helhetskoncept, ofta med hjälp av atmosfärskapande estetik. Med syftet att förstå hur livsstil görs till handelsföretagande beskriver och analyserar denna narrativa etnografi berättelser om och från livsstilsbutiker. Med utgångspunkt i This is a dissertation about life style boutiques and the shopkeepers who operate them. Lifestyle boutiques are shops where a variety of goods and services is offered and staged as an overall concept, often targeted to specific groups and tastes with atmosphere-creating aesthetics. Aiming to understand how lifestyle is made into retail enterprising, this narrative ethnography describes and analyse

In this article, we describe a new command, xtbcfe, that performs the iterative bootstrap-based bias correction for the fixed-effects estimator in dynamic panels proposed by Everaert and Pozzi (2007, Journal of Economic Dynamics and Control 31: 1160–1184). We first simplify the core of their algorithm by using the invariance principle and subsequently extend it to allow for unbalanced and higher o

Behandlar gipsavgjutningarnas ställning och roll i konstutbildningen och på konstmuseerna från 1700-talet till 1914.

Next-generation sequencing (NGS) will soon be used for clinically heterogeneous, inherited disorders and the increasing number of disease-causing genes reported. Diagnostic laboratories therefore need to decide which NGS methods they are going to invest in and how to implement them. We discuss here the challenges and opportunities of using targeted resequencing (TRS) panels for diagnosing monogene

Aim: The aim of the study was to determine whether paediatric ataxia speech subscores are reliably applicable for international early-onset ataxia (EOA) databases. If so, we reasoned that ataxia speech subscores should be associated with ataxia scores and involve high interobserver agreement, including those for internationally applicable Scale for Assessment and Rating of Ataxia (SARA) syllable r

d-Amino acids are increasingly being recognized as important signaling molecules in mammals, including humans. d-Serine and d-aspartate are believed to act as signaling molecules in the central nervous system. Interestingly, several other d-amino acids also occur in human plasma, but very little is currently known regarding their function and origin. Abnormal levels of d-amino acids have been impl

Colchicine may induce a myoneuropathy in patients with renal insufficiency. To date, myotonia has not been described in this disorder. We recently studied 4 patients treated with routine doses of colchicine who, in the setting of renal insufficiency, developed a severe myoneuropathy characterized by prominent myotonic discharges on electromyography. In addition, 1 of the 4 patients had profound cl