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Regio- and Stereoselective Alkylation of Pyridine-N-oxides : Synthesis of Substituted Piperidines and Pyridines

Regio- and stereoselective addition of alkyl Grignard reagents to pyridine-N-oxides gave C2-alkylated N-hydroxy-1,2,5,6-tetrahydropyridines and trans-2,3-disubstituted N-hydroxy-1,2,5,6-tetrahydropyridines in good to excellent yields. These intermediates were aromatized or alternatively reduced in one-pot methodologies for efficient syntheses of alkylpyridines or piperidines, respectively. These r

Impaired contraction and decreased detrusor innervation in a female rat model of pelvic neuropraxia

Introduction and hypothesis: Bilateral pelvic nerve injury (BPNI) is a model of post-radical hysterectomy neuropraxia, a common sequela. This study assessed the time course of changes to detrusor autonomic innervation, smooth muscle (SM) content and cholinergic-mediated contraction post-BPNI. Methods: Female Sprague–Dawley rats underwent BPNI or sham surgery and were evaluated 3, 7, 14, and 30 day

Ionization of Cellobiose in Aqueous Alkali and the Mechanism of Cellulose Dissolution

Cellulose, one of the most abundant renewable resources, is insoluble in most common solvents but dissolves in aqueous alkali under a narrow range of conditions. To elucidate the solubilization mechanism, we performed electrophoretic NMR on cellobiose, a subunit of cellulose, showing that cellobiose acts as an acid with two dissociation steps at pH 12 and 13.5. Chemical shift differences between c

Effects of acute and chronic stress on telencephalic neurochemistry and gene expression in rainbow trout (Oncorhynchus mykiss)

By filtering relevant sensory inputs and initiating stress responses, the brain is an essential organ in stress coping and adaptation. However, exposure to chronic or repeated stress can lead to allostatic overload, where neuroendocrinal and behavioral reactions to stress become maladaptive. This work examines forebrain mechanisms involved in allostatic processes in teleost fishes. Plasma cortisol

Integrating the Strands of Victorian Diversity

This roundtable article provides responses to the other contributions, emphasizing the need for connecting various research strands in Victorian Studies, and considering international aspects. The essay ends with a proposal to take inspiration from the method of microhistorical morphology, forcing the scholar to consider many different contexts.

In-Situ Non-intrusive Diagnostics of Toluene Removal by a Gliding Arc Discharge Using Planar Laser-Induced Fluorescence

A non-equilibrium gliding arc discharge anchored on two diverging stainless steel electrodes was extended into open air by a toluene-containing air jet. The removal process of the toluene by the non-equilibrium gliding arc discharge was investigated through in situ and non-intrusive laser-based techniques. Simultaneous planar laser-induced fluorescence (PLIF) of toluene and OH radicals were employ

Validation of the Spanish Catquest-9SF in patients with a monofocal or trifocal intraocular lens

Purpose To validate the Spanish Catquest-9SF and study patient-reported visual function after implantation of a trifocal versus a monofocal intraocular lens (IOL). setting Clinica Baviera, Valencia and Madrid, Spain. Design Prospective case series. Methods The Catquest-9SF was translated from English to Spanish according to a standard procedure. The Spanish version was validated through Rasch anal

Automated selection of bone texture regions on hand radiographs : Data from the Osteoarthritis Initiative

Manual selection of finger trabecular bone texture regions on hand X-ray images is time-consuming, tedious, and observer-dependent. Therefore, we developed an automated method for the region selection. The method selects square trabecular bone regions of interest above and below the second to fifth distal and proximal interphalangeal joints. Two regions are selected per joint (16 regions per hand)

Detection of acidification limit in anaerobic membrane bioreactors at ambient temperature

High-volume, low-strength industrial wastewaters constitute a large potential for biogas production, which could be realized by membrane bioreactors operating at the ambient temperature of the wastewater. However, the start-up of low-temperature anaerobic processes using unadapted inoculum can be sensitive to overloading, which results in acidification. This study assessed if a novel acidification

COX7A2L/SCAFI and pre-complex III modify respiratory chain supercomplex formation in different mouse strains with a Bcs1l mutation

The COX7A2L (Supercomplex Assembly Factor I, SCAFI) protein has been proposed to be a mitochondrial supercomplex assembly factor required for respirasome (supercomplex containing complexes I, III, and IV) formation. In the C57BL/6 mouse strain a homozygous in-frame 6-base-pair deletion in the COX7a2l/SCAF1 gene resulting in unstable protein and suggesting loss of function was previously identified

Extension of two large wastewater treatment plants in Stockholm using membrane technology

Like many other large cities, Stockholm is facing increased urbanization with densification of infrastructure as a result. At the same time, implementation of the Baltic Sea Action Plan and the EU Water Framework Directive is expected to result in more stringent effluent quality demands. The current situation gives rise to new challenges for the municipal wastewater treatment plants (WWTPs). This

Bridge under troubled water : Turbulence and niche partitioning in fish foraging

The coexistence of competing species relies on niche partitioning. Competitive exclusion is likely inevitable at high niche overlap, but such divide between competitors may be bridged if environmental circumstances displace competitor niches to enhance partitioning. Foraging-niche dimension can be influenced by environmental characteristics, and if competitors react differently to such conditions,

Disturbing the dead. Archaeothanatological analysis of the stone age burials at Zvejnieki, Latvia (excavated 2006–2009)

The Zvejnieki burial ground in northern Latvia is one of the largest concentrations of burials from the Mesolithic and Neolithic in Northern Europe. The 308 burials, dominated by primary inhumation, excavated in the 1960s and 1970s have become important references for understanding the hunter-gatherer mortuary practices in the region. Recent excavations, implementing a taphonomy-focused archaeotha

Residential solar photovoltaics deployment: barriers and drivers in space

In order to support a sustainability transition in the energy sector, actors need knowledge about barriers and drivers to the deployment of clean energy technologies. Solar photovoltaics (PV) is a renewable energy technology that is technically mature and on the verge of becoming economically competitive in numerous regions around the world. Not least in the residential segment, PV has considerabl

Mechanisms for Acceleration of Halide Anation Reactions of Platinum(IV) Complexes. REOA versus Ligand Assistance and Platinu(II) Catalysis without Central Ion Exchange

Chloride anation of trans-Pt(CN)4ClOH2− has been studied with and without Pt(CN)42− present at 25.0 °C by use of stopped-flow and conventional spectrophotometry and a 1.00 M perchlorate medium. The rate law in the absence of Pt(CN)42− is compatible with a chloride assistance via an intermediate of the type Cl-Cl-Pt(CN)4···OH22−, in which the reactivity of the aqua ligand is enhanced due to a partiChloride anation of trans-Pt(CN)4ClOH2− has been studied with and without Pt(CN)42− present at 25.0°C by use of stopped-flow and conventional spectrophotometry and a 1.00 M perchlorate medium. The rate law in the absence of Pt(CN)42− is compatible with a chloride assistance via an intermediate of the type Cl-Cl-Pt(CN)4···OH22−, in which the reactivity of the aqua ligand is enhanced due to a partia

Redefining the subcultural : The sub and the cultural

Arguing against the previous research’s presumption that the subculturalconstitutes a single set of meaning, this article addresses the simplequestion of what constitutes the subcultural? What does it mean when weaddress an object, practice, identity, or meaning structure as subcultural?Through outlining three dominant strands in regards to how subculturaldifference has been defined, the author ar

Scrolling down the line : A few notes on using Instagram as point of access for graffiti research

This article discusses using social media, here Instagram, as a point of access in studies on subcultural graffiti, so as to provide an established arena for initiating contact with a variety of participants. Drawing from an ongoing ethnography of Swedish graffiti writers, the approach presented here works to mitigate the often so major hurdle within ethnographic work on subcultural groups: that o