Reaction of 2-amino-5-iodo-pyridine (5IAP) with concentrated HBr at room temperature yielded 2-amino-5-iodo-pyridinium bromide, CHIN ·Br or (5IAPH)Br. The complex formed pale-yellow crystals, which exhibit significant hydrogen bonding between the amino and pyridinium N-H donors and bromide ion acceptors. Halogen bonding is also observed.
View Article and Find Full Text PDFAn approach to improving radiation use efficiency (RUE) in wheat is to screen for variability in rates of leaf respiration in darkness (Rdark). We used a high-throughput system to quantify variation in Rdark among a diverse range of spring wheat genotypes (301 lines) grown in two countries (Mexico and Australia) and two seasons (2017 and 2018), and in doing so quantify the relative importance of genotype (G) and environment (E) in influencing variations in leaf Rdark. Through careful design, residual (unexplained) variation represented less than 10% of the total observed.
View Article and Find Full Text PDFThe reaction of nickel(II) chloride with 3-meth-oxy-aniline yielded di-chlorido-tetra-kis-(3-meth-oxy-aniline)nickel(II), [NiCl(CHNO)], as yellow crystals. The Ni ion is pseudo-octa-hedral with the chloride ions to each other. The four 3-meth-oxy-aniline ligands differ primarily due to different conformations about the Ni-N bond, which also affect the hydrogen bonding.
View Article and Find Full Text PDFA significant warming effect on arctic tundra is greening. Although this increase in predominantly woody vegetation has been linked to increases in gross primary productivity, increasing temperatures also stimulate ecosystem respiration. We present a novel analysis from small-scale plot measurements showing that the shape of the temperature- and light-dependent sink-to-source threshold (where net ecosystem exchange (NEE) equals zero) differs between two tussock tundra ecosystems differing in leaf area index (LAI).
View Article and Find Full Text PDFBackground: The use of personal protective equipment (PPE) in emergency departments (EDs) is an important defense during infectious disease emergencies. However, what counts as appropriate PPE in EDs is contentious and inconsistently implemented in practice.
Methods: An online scenario-based video survey was distributed through purposive sampling, and completed by 270 ED and infection prevention and control clinicians in Australia.
Background: Medical tapes can lead to skin damage upon removal in susceptible patients with fragile skin and at higher risk of developing tissue injury.
Purpose: We compared the effect of medical tapes with silicone-based versus acrylate-based adhesives on the back or volar forearm stratum corneum using analytical techniques to assess skin condition and potential damage post product removal on 88 healthy volunteers.
Methods: Two studies were conducted in separate facilities (Study 1: 3M In-house Clinical Facility, St.
Introduction: Expression of light sensitive ion channels by selected neurons has been achieved by viral mediated transduction with gene constructs, but for this to have therapeutic uses, for instance in treating epilepsy, any adverse effects of viral infection on the cerebral cortex needs to be evaluated. Here, we assessed the impact of adeno-associated virus 8 (AAV8) carrying DNA code for a soma targeting light activated chloride channel/FusionRed (FR) construct under the CKIIa promoter.
Methods: Viral constructs were harvested from transfected HEK293 cells and purified.
Diagnoses of breast cancer are continuing to increase in the Philippines, but little is known about incidence rates among the significant number of Filipino women working abroad as migrant domestic workers (MDWs). These women are often the main income providers for their families, and their ability to work depends upon their physical health and strength. In this article, we use interpretive phenomenological analysis to explore the experiences of 10 MDWs from the Philippines who were diagnosed with breast cancer during a period of employment in Hong Kong.
View Article and Find Full Text PDFBackground: We conducted a preliminary phase I, dose-escalating, safety, and tolerability trial in the population of patients with acute intracerebral hemorrhage (ICH) by using human allogeneic bone marrow-derived mesenchymal stem/stromal cells.
Methods: Eligibility criteria included nontraumatic supratentorial hematoma less than 60 mL and Glasgow Coma Scale score greater than 5. All patients were monitored in the neurosciences intensive care unit for safety and tolerability of mesenchymal stem/stromal cell infusion and adverse events.
The reaction of CuCl with 1,6-diphenyl-1,3,5,6-hexa-netetrone and 2,2'-bi-pyridine (bipy) in ethanol gave crystals of the corresponding bimetallic complex, [Cu(CHO)Cl(CHN)]·2HO. The mol-ecule is centrosymmetric with each Cu ion coordinated to two oxygen atoms from the tetronediate, two nitro-gen atoms from a bipy ligand and one coordinated chloride ion. A water mol-ecule of crystallization forms hydrogen bonds to the chloride ions, linking the mol-ecules into a chain parallel to the -face diagonal.
View Article and Find Full Text PDFPurpose: The use of lung protective ventilation (LPV) during general anesthesia is an effective strategy among certified registered nurse anesthetists (CRNAs) to reduce and prevent the incidence of postoperative pulmonary complications. The purpose of this project was to implement a LPV protocol, assess CRNA provider adherence, and investigate differences in ventilation parameters and postoperative oxygen requirements.
Design: This quality improvement project was conducted using a pre- and postimplementation design.
Spillover events of avian influenza A viruses (IAVs) to humans could represent the first step in a future pandemic. Several factors that limit the transmission and replication of avian IAVs in mammals have been identified. There are several gaps in our understanding to predict which virus lineages are more likely to cross the species barrier and cause disease in humans.
View Article and Find Full Text PDFCrystals of the new organic-inorganic material (DAP-H2)[CuBr] (); (DAP = hexahydrodiazepine (CHN)) were successfully synthesized by slow evaporation and characterized by single-crystal X-ray diffraction, infrared spectroscopy, thermal analysis, UV-Vis-NIR diffuse reflectance spectroscopy, and magnetic measurements. X-ray investigation demonstrates that crystallizes in the monoclinic space group 2/. The supramolecular crystal structure of is guided by several types of hydrogen bonding which connect anions and cations together into a three-dimensional network.
View Article and Find Full Text PDFBackground: In 2017, the Children and Young People's Improving Access to Psychological Therapies (CYP-IAPT) project was extended to deliver low-intensity Cognitive Behavioural Therapy (CBT), delivered by Children's Wellbeing Practitioners (CWPs), but to date evaluation is sparse.
Aims: To evaluate low-intensity interventions delivered by trainee CWPs for the treatment of anxiety and depression in a child and adolescent mental health service (CAMHS).
Method: The evaluation adopted a quantitative, within-subjects, cross-sectional design.
Helicoverpa armigera (Hübner) is a major crop pest native to Europe, Asia, Australia, and Africa which has recently invaded South America and has caused billions of dollars in agricultural losses. Because of challenges in differentiating between H. armigera and Helicoverpa zea (Boddie), a closely related species native to North and South America, genetic tests have previously been developed to detect H.
View Article and Find Full Text PDFTo report the preliminary safety, tolerability, and cerebral spinal fluid (CSF) sampling utility of serial injections of concentrated intraventricular nicardipine (IVN) in the treatment of aneurysmal subarachnoid hemorrhage (aSAH). We report the clinical, radiographic, and laboratory safety and tolerability data of a retrospective case series from a single academic medical center. All patients with aSAH developed vasospasm despite enteral nimodipine and received serial injections of concentrated IVN (2.
View Article and Find Full Text PDFHalide-bridged polymers have gained significant interest due to their diverse properties and potential applications. Stacked CuLX dimers, where L is an organic ligand and X can be Cl or Br, are of interest because a chloride analogue where L = 2-pyridone, had previously been reported to exhibit bulk ferromagnetism, which augured great potentiality for this class of compounds. The synthesis, structural characterization, magnetic susceptibility measurements, and computational studies of two isostructural CuClMI (MI = methylisothiazolinone) and CuBrMI polymers of Cu(II), along with a related CuClPYR (PYR = 2-pyridone) is reported.
View Article and Find Full Text PDFCoronavirus disease 2019 (COVID-19) is associated with adverse impacts in the cardiovascular system, but the mechanisms driving this response remain unclear. In this study, we conducted "pseudoviral infection" of SARS-CoV-2 subunits to evaluate their toxic effects in cardiomyocytes (CMs), that were derived from human induced pluripotent stem cells (hiPSCs). We found that the ectopic expression of S and ORF-9B subunits significantly impaired the contractile function and altered the metabolic profiles in human cardiomyocytes.
View Article and Find Full Text PDFWe report the manifestation of field-induced Berezinskii-Kosterlitz-Thouless (BKT) correlations in the weakly coupled spin-1/2 Heisenberg layers of the molecular-based bulk material [Cu(pz)_{2}(2-HOpy)_{2}](PF_{6})_{2}. At zero field, a transition to long-range order occurs at 1.38 K, caused by a weak intrinsic easy-plane anisotropy and an interlayer exchange of J^{'}/k_{B}≈1 mK.
View Article and Find Full Text PDFBackground: The rate of international migration for the primary purpose of employment has increased exponentially in recent decades. A significant proportion of this global movement takes place across East and Southeast Asia as workers move on a temporary basis from lower-middle-income home countries such as Indonesia, the Philippines, Thailand and Vietnam to high-income host destinations including Hong Kong and Singapore. Relatively little is known about the unique and long-term health needs of this heterogeneous group of people.
View Article and Find Full Text PDFNegative pressure wound therapy (NPWT) drape removal from the skin may be painful for patients and inadvertently cause skin damage during the length of therapy. Most NPWT drapes utilize an acrylate adhesive to achieve the seal. To improve the experience associated with NPWT drape removal, a novel hybrid drape was developed.
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