Inducing Ferrimagnetic Exchange in 1D-FeSe Chains Using Heteroleptic Amine Complexes: [Fe(en)(tren)][FeSe].

[Fe(en)(tren)][FeSe] ( = ethylenediamine, CHN, = tris(2-aminoethyl)amine, CHN) has been synthesized by a mixed-ligand solvothermal method. Its crystal structure contains heteroleptic [Fe(en)(tren)] complexes with distorted octahedral coordination, incorporated between 1D-FeSe chains composed of edge-sharing FeSe tetrahedra. The twisted octahedral coordination environment of the Fe-amine complex leads to partial dimerization of Fe-Fe distances in the FeSe chains so that the FeSe polyhedra deviate strongly from the regular tetrahedral geometry.

Global Impact of the COVID-19 Pandemic on Stroke Volumes and Cerebrovascular Events: A 1-Year Follow-up.

Background And Objectives: Declines in stroke admission, IV thrombolysis (IVT), and mechanical thrombectomy volumes were reported during the first wave of the COVID-19 pandemic. There is a paucity of data on the longer-term effect of the pandemic on stroke volumes over the course of a year and through the second wave of the pandemic. We sought to measure the effect of the COVID-19 pandemic on the volumes of stroke admissions, intracranial hemorrhage (ICH), IVT, and mechanical thrombectomy over a 1-year period at the onset of the pandemic (March 1, 2020, to February 28, 2021) compared with the immediately preceding year (March 1, 2019, to February 29, 2020).

As-Se Pentagonal Linkers to Induce Chirality and Polarity in Mixed-Valent Fe-Se Tetrahedral Chains Resulting in Hidden Magnetic Ordering.

A novel mixed-valent hybrid chiral and polar compound, FeAsSe(en)(HO), has been synthesized by a single-step solvothermal method. The crystal structure consists of 1D [FeSe] chains connected via [AsSe]-Se pentagonal linkers and charge-balancing interstitial [Fe(en)] complexes ( = ethylenediamine). Neutron powder diffraction verified that interstitial water molecules participate in the crystal packing.

Solvothermal Synthesis of [Cr S (en) Cl ]Cl ⋅ 2H O with Magnetically Frustrated [Cr S ] Double-Cubes.

A novel transition metal chalcohalide [Cr S (en) Cl ]Cl  ⋅ 2H O, with [Cr S ] dicubane cationic clusters, has been synthesized by a low temperature solvothermal method, using dimethyl sulfoxide (DMSO) and ethylenediamine (en) solvents. Ethylenediamine ligand exhibits bi- and monodentate coordination modes; in the latter case ethylenediamine coordinates to Cr atoms of adjacent clusters, giving rise to a 2D polymeric structure. Although magnetic susceptibility shows no magnetic ordering down to 1.

Questionnaire and Portable Sleep Test Screening of Sleep Disordered Breathing in Acute Stroke and TIA.

Sleep disordered breathing (SDB) is highly prevalent, but frequently unrecognized among stroke patients. Polysomnography (PSG) is difficult to perform soon after a stroke. We evaluated the use of screening questionnaires and portable sleep testing (PST) for patients with acute stroke, subarachnoid hemorrhage, or transient ischemic attack to expedite SDB diagnosis and management.

Tuning Fe-Se Tetrahedral Frameworks by a Combination of [Fe(en)] Cations and Cl Anions.

A one-dimensional (1D) chain compound ( = ethylenediamine), featuring tetrahedral FeSe chains separated by [Fe(en)] cations and Cl anions, has been synthesized by a low temperature solvothermal method using simple starting materials. The degree of distortion in the Fe-Se backbone is similar to previously reported compounds with isolated 1D FeSe chains. Fe Mössbauer spectroscopy reveals the mixed-valent nature of [Fe(en)](FeSe)Cl with Fe centers in the [FeSe] chains and Fe centers in the [Fe(en)] complexes.

Decline in stroke alerts and hospitalisations during the COVID-19 pandemic.

Introduction: Patients with stroke-like symptoms may be underutilising emergency medical services and avoiding hospitalisation during the COVID-19 pandemic. We investigated a decline in admissions for stroke and transient ischaemic attack (TIA) and emergency department (ED) stroke alert activations.

Methods: We retrospectively compiled total weekly hospital admissions for stroke and TIA between 31 December 2018 and 21 April 2019 versus 30 December 2019 and 19 April 2020 at five US tertiary academic comprehensive stroke centres in cities with early COVID-19 outbreaks in Boston, New York City, Providence and Seattle.

Insights in public health: Building support for an evidence-based teen pregnancy and sexually transmitted infection prevention program adapted for foster youth.

Hawai'i Youth Services Network (HYSN) was founded in 1980 and is incorporated as a 501(c) (3) organization. HYSN plays a key role in the planning, creation, and funding of local youth services. One of HYSN's focuses is teen pregnancy and sexually transmitted infections (STI) prevention among foster youth.

Infant growth influences proximal femoral geometry in adulthood.

Unlabelled: The relationship between early growth and adult femoral geometry has not been studied previously. In 333 adults, we were able to show that infant weight predicts femoral width and cross-sectional moment of inertia but not femoral neck length. These results support the hypothesis that growth in early life leads to persisting differences in proximal femoral geometry.

Extra-aortic balloon counterpulsation: an intraoperative feasibility study.

Background: Current methods of counterpulsation or ventricular assistance have significant vascular and limb complications. The aim of this study was to determine the safety and performance of a new method of non-blood-contacting counterpulsation using an inflatable cuff around the ascending aorta (extra-aortic balloon [EAB]).

Methods And Results: In 6 patients undergoing first time off-pump coronary bypass surgery via sternotomy, the EAB was secured around the ascending aorta and attached to a standard counterpulsation console.

Heart failure patient learning needs after hospital discharge.

This descriptive-correlational study examined the perceived learning needs of heart failure patients in postdischarge settings, as well as the influence of demographic variables on these learning needs. The Outpatient Heart Failure Learning Needs Inventory was used to rate subjects' perceptions of the importance of educational topics on a five-point Likert scale. Findings indicated that subjects perceived signs and symptoms and medications as most important to learn and diet, activity, and psychological factors as least important to learn.