Oxygen Incorporation as a Route to Nondegenerate Zinc Nitride Semiconductor Thin Films.

Zinc nitride (ZnN) comprises earth-abundant elements, possesses a small direct bandgap, and is characterized by high electron mobility. While these characteristics make the material a promising compound semiconductor for various optoelectronic applications, including photovoltaics and thin-film transistors, it commonly exhibits unintentional degenerate n-type conductivity. This degenerate character has significantly impeded the development of ZnN for technological applications and is commonly assumed to arise from incorporation of oxygen impurities.

Amorphous nitride semiconductors with highly tunable optical and electronic properties: the benefits of disorder in Ca-Zn-N thin films.

Semiconducting ternary nitrides are a promising class of materials that have received increasing attention in recent years, but often show high free electron concentrations due to the low defect formation energies of nitrogen vacancies and substitutional oxygen, leading to degenerate n-type doping. To achieve non-degenerate behavior, we now investigate a family of amorphous calcium-zinc nitride (Ca-Zn-N) thin films. By adjusting the metal cation ratios, we demonstrate band gap tunability between 1.

Ligand-Tuned AgBiS Planar Heterojunctions Enable Efficient Ultrathin Solar Cells.

AgBiS quantum dots (ABS QDs) have emerged as highly promising candidates for photovoltaic applications due to their strong sunlight absorption, nontoxicity, and elemental availability. Nevertheless, the efficiencies of ABS solar cells currently fall far short of their thermodynamic limits due in large part to sluggish charge transport characteristics in nanocrystal-derived films. In this study, we overcome this limitation by tuning the surfaces of ABS semiconductor QDs via a solvent-induced ligand exchange (SILE) strategy and provide key insights into the role of surface composition on both - and -type charge transfer doping, as well as long-range charge transport.

S-Scheme Interface Between K-CN and FePS Fosters Photocatalytic H Evolution.

In photocatalysis, photogenerated charge separation is pivotal and can be achieved through various mechanisms. Building heterojunctions is a promising method to enhance charge separation, where effective contact and charge exchange between heterojunction components remains challenging. Mostly used synthesis processes for making heterostructures require high temperatures, difficult processes, or expensive materials.

Retroperitoneal Malakoplakia Mimicking Metastatic Disease.

Malakoplakia is a rare inflammatory granulomatous disease that can produce a tumor-like appearance in nearly any organ system. Imaging findings of malakoplakia overlap with malignancy and tissue sampling are typically required for definitive diagnosis. We present a case of a 66-year-old woman with a previous history of liver adenocarcinoma status post resection that subsequently developed an intensely FDG-avid retroperitoneal mass on surveillance imaging.

Perinephric Extramedullary Disease in Multiple Myeloma.

Extramedullary disease represents an aggressive form of multiple myeloma occurring outside the skeleton and is a poor prognostic indicator. Extramedullary disease most commonly involves the skin, muscle, pleura, lymph nodes, liver, and central nervous system. Infrequently, extramedullary disease can involve the kidneys or perirenal space.

SLFN11 and ATR as targets for overcoming cisplatin resistance in ovarian cancer cells.

The levels and activities of the DNA/RNA helicase schlafen11 (SLFN11) and the serine/threonine-protein kinase ataxia telangiectasia and Rad3-related protein (ATR) may determine cancer cell sensitivity to DNA damaging agents, including platinum drugs. Here, we studied the roles of SLFN11 and ATR in cisplatin resistance of ovarian cancer using cell lines displaying acquired or intrinsic cisplatin resistance. W1CR, the cisplatin-resistant subline of W1 ovarian cancer cells, displayed reduced SLFN11 levels.

The Complex Tumor Microenvironment in Ovarian Cancer: Therapeutic Challenges and Opportunities.

The tumor microenvironment (TME) in ovarian cancer (OC) has much greater complexity than previously understood. In response to aggressive pro-angiogenic stimulus, blood vessels form rapidly and are dysfunctional, resulting in poor perfusion, tissue hypoxia, and leakiness, which leads to increased interstitial fluid pressure (IFP). Decreased perfusion and high IFP significantly inhibit the uptake of therapies into the tumor.

Next generation risk assessment for occupational chemical safety - A real world example with sodium-2-hydroxyethane sulfonate.

Next Generation Risk Assessment (NGRA) is an exposure-led approach to safety assessment that uses New Approach Methodologies (NAMs). Application of NGRA has been largely restricted to assessments of consumer use of cosmetics and is not currently implemented in occupational safety assessments, e.g.

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Cancer is a significant global health issue that poses a considerable burden on both patients and healthcare systems. Many different types of cancers exist that often require unique treatment approaches and therapies. A hallmark of tumor progression is the creation of an immunosuppressive environment, which poses complex challenges for current treatments.

Zirconium Oxynitride Thin Films for Photoelectrochemical Water Splitting.

Transition metal oxynitrides are a promising class of functional materials for photoelectrochemical (PEC) applications. Although these compounds are most commonly synthesized via ammonolysis of oxide precursors, such synthetic routes often lead to poorly controlled oxygen-to-nitrogen anion ratios, and the harsh nitridation conditions are incompatible with many substrates, including transparent conductive oxides. Here, we report direct reactive sputter deposition of a family of zirconium oxynitride thin films and the comprehensive characterization of their tunable structural, optical, and functional PEC properties.

Systemic and Neurosarcoidosis With Rare Involvement of the Extremities' Peripheral Nerves.

We present a case of sarcoidosis with a rare presentation of involvement of peripheral nerves of the lower limbs and subcutaneous nodules detected on 18 F-FDG PET/CT. The patient also had involvement of the spinal nerves and dura, histologically proven to be sarcoidosis. There were other manifestations of systemic sarcoidosis like metabolically active cervical and mediastinal lymphadenopathy.

Prostate-Specific Membrane Antigen PET/CT Detection of Prostate Cancer Metastasis to Thyroid and Cricoid Cartilages.

Prostate-specific membrane antigen (PSMA) PET/CT has revolutionized the imaging of prostate cancer. Historically, prostate cancer metastasis to thyroid and cricoid cartilages was thought to be exceedingly rare, with only a few reported cases in the literature. Prostate cancer metastasis to the laryngeal cartilages was detected in 4 of 221 patients who underwent imaging with 18 F-PSMA (Pylarify) or 68 Ga-PSMA (Illuccix) PET/CT for initial staging of high-risk prostate cancer or restaging evaluation in the setting of biochemical recurrence from April 2022 through October 2023.

10-year update to the combined 16-month nuclear medicine and diagnostic radiology residency: The NuRad pathway.

Background: The decline in nuclear medicine (NM) residencies in the United States has led to a shortage of NM physicians. To help address this, a 16-month NM pathway for diagnostic radiology (DR) residents was developed in 2010. At the University of Arkansas for Medical Sciences, we matched our first resident into the NuRad (NM + DR) pathway in 2013.

Benzene-1,4-Di(dithiocarboxylate) Linker-Based Coordination Polymers of Mn, Zn, and Mixed-Valence Fe.

Three new coordination polymers (CPs) constructed from the linker 1,4-di(dithiocarboxylate) (BDDTC)─the sulfur-analog of 1,4-benzenedicarboxylate (BDC)─together with Mn-, Zn-, and Fe-based inorganic SBUs are reported with description of their structural and electronic properties. Single-crystal X-ray diffraction revealed structural diversity ranging from one-dimensional chains in [Mn(BDDTC)(DMF)] () to two-dimensional (2D) honeycomb sheets observed for [Zn(BDDTC)][Zn(DMF)(HO)] (). Gas adsorption experiments confirmed a 3D porous structure for the mixed-valent material [Fe(BDDTC)(OH)] ().

Giant left pheochromocytoma with vascular anomalies and pelvic horseshoe kidney: a case report.

Background: Pheochromocytoma is a neuroendocrine tumor, and its treatment is dependent on surgical resection. Due to the wide availability of cross-sectional imaging, pheochromocytomas are commonly seen as small tumors less than 10 cm in size and are mostly treated with minimally invasive surgery. Their concomitant presence with horseshoe kidney or other anatomical and vascular anomalies is rare.

Scintigraphic Detection of Abdominal Pseudocyst: A Complication of Ventriculoperitoneal Shunt.

We report a case of a large abdominal pseudocyst detected on scintigraphy in a patient with a history of ventriculoperitoneal shunt placement who presented with headache and suspected shunt malfunction.

Correlation of Different MRI Scoring Systems with Long-Term Cognitive Outcome in Cooled Asphyxiated Newborns.

(1) Background: Cerebral MRI plays a significant role in assessing the extent of brain injury in neonates with neonatal encephalopathy after perinatal asphyxia. Over the last decades, several MRI scoring systems were developed to enhance the predictive accuracy of MRI. The aim of this study was to validate the correlation of four established MRI scoring systems with cognitive long-term outcomes in cooled asphyxiated newborns.

Tailoring the Weight of Surface and Intralayer Edge States to Control LUMO Energies.

The energies of the frontier molecular orbitals determine the optoelectronic properties in organic films, which are crucial for their application, and strongly depend on the morphology and supramolecular structure. The impact of the latter two properties on the electronic energy levels relies primarily on nearest-neighbor interactions, which are difficult to study due to their nanoscale nature and heterogeneity. Here, an automated method is presented for fabricating thin films with a tailored ratio of surface to bulk sites and a controlled extension of domain edges, both of which are used to control nearest-neighbor interactions.

Synchronous Ectopic Thyroid Gland and Ectopic Parathyroid Adenoma on Tc-Sestamibi Scintigraphy and Correlative Imaging.

Tc-sestamibi scintigraphy localizes parathyroid adenoma as a persistent focus of uptake on delayed images, whereas thyroid glands in normal or ectopic locations are seen on only early images and wash out on delayed images. We report a case of absence of eutopic neck thyroid activity and synchronous ectopic lingual thyroid and mediastinal parathyroid adenoma on scintigraphy confirmed with CT.

Correlation between the level of evidence and the class of recommendations concerning the pharmacological aspects of the Guidelines of the European Society of Cardiology.

Background The reliability of the recommendations affecting the clinical decisions is being continuously weighed in everyday practice (Gershlick, 2018). The objective of our study was to assess the consistency of the evidence behind the recommendations. Methods We narrowed our focus on the pharmacotherapeutic aspects of the most recent 38 European Society of Cardiology guidelines and analyzed the correlation between the level of evidence (LoE) classified as A, B and C and the class of recommendations (CoR) subdivided into I, IIa, IIb and III.

Real-Time Investigation of Sulfur Vacancy Generation and Passivation in Monolayer Molybdenum Disulfide X-ray Photoelectron Spectromicroscopy.

Understanding the chemical and electronic properties of point defects in two-dimensional materials, as well as their generation and passivation, is essential for the development of functional systems, spanning from next-generation optoelectronic devices to advanced catalysis. Here, we use synchrotron-based X-ray photoelectron spectroscopy (XPS) with submicron spatial resolution to create sulfur vacancies (SVs) in monolayer MoS and monitor their chemical and electronic properties during the defect creation process. X-ray irradiation leads to the emergence of a distinct Mo 3d spectral feature associated with undercoordinated Mo atoms.

Reality bites: An analysis of corona deniers in Germany over time.

The COVID-19 pandemic resulted in unprecedented government interventions in many people's lives. Opposition to these measures was not only based on policy disagreements but for some founded in an outright denial of basic facts surrounding the pandemic, challenging social cohesion. Conspiracy beliefs have been prolific within various protest groups and require attention, as such attitudes have been shown to be associated with lower rule compliance.