Search results

Filter

Filetype

Your search for "*" yielded 539195 hits

A simple method for the purification of an antimicrobial peptide in recombinant Escherichia coli

A magainin derivative, designated MSI-344, was produced in Escherichia coli as fusion protein, by utilizing a truncated amidophsphoribosyltransferase of E. coli as a fusion partner. Bacterial cells transformed with the gene encoding the fusion protein were grown to a high cell density and induced with isopropyl-1-thio-b-D-galatoside (IPTG) to initiate product expression. The fusion protein was a

A large-scale purification of recombinant histone H1. 5 from Escherichia coli

An Escherichia coli expression system has been constructed for production of biologically active recombinant histone H1.5. A process of fermentation and purification method at a large scale has been developed. Recombinant histone H1.5 was released from the high density cultured cells by high-pressure homogenization. For an efficient removal of cell debris and partial purification of basic histone

Sternal opening width is associated with increased risk for capillary leak syndrome and death in neonates and infants after cardiac surgery with delayed sternal closure

Capillary leak syndrome is a serious postoperative complication in neonates and infants after open-heart surgery for CHD. The aim of this study was to investigate the relationship between sternal opening width and the occurrence of capillary leak syndrome in patients undergoing cardiac surgery with delayed sternal closure.We retrospectively analysed the clinical data of neonates and infants (aged

Disjunct distributions and evolutionary diversification of Australasian geometrid moths : subfamilies Epidesmiinae, Desmobathrinae and Oenochrominae (Lepidopera)

Disjunct distribution patterns have long intrigued biogeographers, sparking ongoing debates about the mechanisms driving the current distribution of biodiversity. Among the most discussed patterns are long-distance dispersal and vicariance. While these patterns have been extensively studied in plants, marine taxa, mammals, and some invertebrates, they remain less explored in groups like moths. In

Selective adsorption in ion exchange membranes: The effect of solution ion composition on ion partitioning

Electrodialysis is a water desalination technology that enables selective separation of ions, making it a promising solution for sustainable water reuse. The selectivity of the process is mainly determined by the properties of ion exchange membranes that can vary depending on the composition of ions in water, such as water uptake and charge density. In this work, we studied selective adsorpti

“Real Sexual Harassment”: Attrition Among Police-Reported Sexual Molestation Crimes in Sweden

This article presents findings from a quantitative analysis of 215 case files regarding incidents of the crime of sexual molestation reported to the Swedish Police. We track the incidents through the criminal justice system and show a clearance rate of 9%. The clearance rate is higher when the attack is of a physical nature, the suspect is a stranger, and the incident occurs in a public place. Whi

How Many Sexes, How Many Genders? And What Does This Imply for (Social) Scientists?

In some ways, it can feel like conducting empirical research has become more and more difficult. Some standards that were widely agreed upon in the past for conducting research on gender and/or sex appear to be contested today (see Fraser, 2018). Some questions that may feel uncontroversial to ask for some research participants are a source of minority stress, exclusion, and outrage for others. Ca

Drought as a disturbance : Soil microbial resistance and resilience across environmental gradients

The ecosystem response to disturbances is a central topic in ecology, and there is growing awareness of the impacts of human-driven climate change on ecosystem stability to disturbances. Terrestrial ecosystems are increasingly exposed to more drought and rainfall events as climate change intensifies. In soils, bacteria and fungi play a key role in ecosystem functioning, yet their responses to drou

Ethical AI in Unregulated Environments: A Qualitative Empirical Study

This study investigates the incentives and barriers influencing AI ethics adoption in unregulated environments, drawing on semi‐structured interviews with AI professionals in Bangladesh. Our findings reveal that external pressures, such as international client requirements, drive companies to implement ethical measures, yielding both economic benefits and enhanced reputation. Conversely, tight dea

Quantum Dot Dissipation in Microwave Resonators : Toward High Bandwidth Charge Readout

Detecting a single elementary charge has become an important task to achieve as applications within quantumtechnologies such as for qubit readout, nanothermodynamics or single shot photodetection rely on the locationof single electrons. The use of microwave resonators as the readout method for the charge sensitive single electrondevices, such as quantum dots, has been extensively used to achieve h

Balayage of Measures : Behavior Near a Cusp

Let μ be a positive measure supported on a planar domain Ω. We consider the behavior of the balayage measure ν:=Bal(μ,∂Ω) near a point z0∈∂Ω at which Ω has an outward-pointing cusp. Assuming that the order and coefficient of tangency of the cusp are d>0 and a>0, respectively, and that dμ(z)≍|z-z0|2b-2d2z as z→z0 for some b>0 (here d2z is the Lebesgue measure on C), we obtain the leading order term

Scalable Vertical In-Ga-As Nanowire MOSFET With 67 mV/dec at 126μm Gate Width

Heterogeneous integration of III-V narrow bandgap transistors on silicon technology is desirable for high frequency circuit implementations. Such high-speed transistors must, however, scale to large gate widths to be suitable for general circuit design. Averaging among many variable channels is a key challenge for nanowire devices. A simplified, but high-speed compatible, nanowire device process w

Terahertz frequency-domain 4 × 4 Mueller matrix ellipsometer instrument designed for high-frequency magnetic resonance measurements

We report a Mueller matrix ellipsometer design using dual continuously rotating anisotropic meta wave plates, which determines the full set of Mueller matrix elements in the terahertz spectral range. The instrument operates in the frequency domain and employs a frequency tunable, solid state synthesizer based, continuous wave terahertz source with sub-MHz bandwidth. The implemented source permits

Pathophysiological and nutritional aspects in the etiology and management of gastroesophageal reflux disease

Gastroesophageal reflux disease (GERD) is a prevalent condition observed across various medical specialties, including gastroenterology, otorhinolaryngology, surgery and primary care. Despite the routine prescription of proton pump inhibitors, some patients fail to experience adequate symptom relief. This review delves into the multifactorial mechanisms of reflux, which extend beyond hydrochloric

Bumblebees avoid sucrose solution containing high concentrations of Roundup

Herbicides are one of the most heavily applied groups of pesticides globally. Whilst research on herbicides in relation to bees is growing, we still have more to learn about how bees may interact with herbicides and the subsequent consequences for bee health. As herbicides are designed to kill the plants they are applied to, bees and other pollinators may interact with them in a different way to o