Sökresultat

A way of modulating the solid-state electron transport (ETp) properties of oligopeptide junctions is presented by charges and internal hydrogen bonding, which affect this process markedly. The ETp properties of a series of tyrosine (Tyr)-containing hexa-alanine peptides, self-assembled in monolayers and sandwiched between gold electrodes, are investigated in response to their protonation state. In

Abstract in SpanishSe ha dicho a menudo que la Cronografía de Miguel Psellós, el prolífico autor del s. xi, es una obra historiográfica que semeja una novela y que Psellós gasta mucho tiempo en describir caracteres y en tomar actitudes irónicas respecto de sus protagonistas imperiales. Este artículo sostiene que una versión más refinada de esto puede ser vista en el libro sexto de Psellós a proIt has often been stated that the Chronographia by the eleventh-century prolific author Michael Psellos is a piece of historiography that reads almost like a novel, and that Psellos spends much time on describing characters and taking ironical stances towards his imperial protagonists. This article claims that a refined version of this may be seen in Psellos’ book six on Constantine IX Monomachos.

Background and purpose — Few reports have described the panorama of orthopedic surgeries that children with cerebral palsy (CP) undergo. We analyzed the risk of a first surgery, and describe the frequency of orthopedic surgeries in terms of age, sex, anatomical location, and Gross Motor Function Classification System (GMFCS) level in children and young adults with CP. Patients and methods — This w

Background: Celiac disease (CD) is an immune-mediated inflammatory disease of the intestine in genetically susceptible individuals caused by loss of tolerance to the storage proteins (gluten) in wheat, rye, and barley. Little is known about CD and associated risk factors in Sub-Saharan African countries including Ethiopia. The main aim of the present thesis was to explore how the incidence of celi

Hand eczema is a chronic disease that results in economic and psychosocial burdens. The aim of this study was to systematically review and assess the magnitude of the association between exposure related to occupations and the incidence rate of hand eczema. A systematic search in PubMed, EMBASE, CINAHL and Cochrane databases, from inception to September 2017, of full-text observational studies rep

Rel stringent factors are bifunctional ribosome-associated enzymes that catalyze both synthesis and hydrolysis of the alarmones (p)ppGpp. Besides the allosteric control by starved ribosomes and (p)ppGpp, Rel is regulated by various protein factors depending on specific stress conditions, including the c-di-AMP-binding protein DarB. However, how these effector proteins control Rel remains unknown.

Sedan antiken har humanismen försökt definiera den mänskliga naturens väsen samtidigt som den placerar människan i universums centrum som ”alla tings mått”. I ett försök att omvärdera människans betydelse har det talats om ett slags transhumanistisk intersubjektivitet. Jag utgår från fysikern och feministen Karen Barads begrepp intraaktion (samspel mellan integrerade delar). Barad myntar begreppet

Economic history became a discipline with its own chair professors at the Swedish universities at the end of the 1940s. The well-known economic historian Eli Heckscher played a central role for the establishment and his work led to a stronger position for economic history in Sweden than in most other countries. However, his influence was not strong in the formation of the discipline. He always emp

Besides friction and wear, airborne particle emission has become a central parameter when evaluating disc brake performance due to its potential adverse health effects as component of ambient air pollution. The pad friction material of brake system is composed of a mixture of ingredients grouped into four material categories: abrasives, reinforcing fibres, lubricants, and fillers. Some other ingre

The current war in Ukraine has severely disrupted global food supply chains due to the significant decline in the production of grain commodities, of which Ukraine and Russia are major global suppliers. This creates problems in today’s globalised food systems. In particular, a number of countries are heavily dependent on food imports from Ukraine and/or Russia, particularly some developing nations