Publications by authors named "Nussbaum S"

Incorporating organic semiconductor building blocks as spacer cations into layered hybrid perovskites provides an opportunity to develop new materials with novel optoelectronic properties, including nanoheterojunctions that afford spatial separation of electron and hole transport. However, identifying organics with suitable structure and electronic energy levels to selectively absorb visible light has been a challenge in the field. In this work, we introduce a new lead-halide-based Ruddlesden-Popper perovskite structure based on a visible-light-absorbing naphthalene-iminoimide cation (NDI-DAE).

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Objectives: Endovascular aneurysm repair, though minimally invasive and has the benefit of relatively low perioperative complication rates, it is associated with significant long term reintervention rates related to endoleaks. Several variables have been studied to predict the outcomes of endovascular aneurysm repair, 1 of which is the calcium burden of the vasculature. This prompted us to study the association between calcium burden measured by the standardized Agatston scoring system and the outcomes of Endovascular aneurysm repair.

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The alloying of two-dimensional (2D) transition metal dichalcogenides (TMDs) is an established route to produce robust semiconductors with continuously tunable optoelectronic properties. However, typically reported methods for fabricating alloyed 2D TMD nanosheets are not suitable for the inexpensive, scalable production of large-area (m) devices. Herein we describe a general method to afford large quantities of compositionally-tunable 2D TMD nanosheets using commercially available powders and liquid-phase exfoliation.

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Introduction: Echocardiography is used for assessment of patients after transcatheter aortic valve implantation (TAVI). Global work index (GWI) integrates LV deformation throughout the cardiac cycle and LV afterload and may be advantageous for long-term follow-up.

Methods: We analysed 144 patients with severe aortic stenosis who underwent TAVI and echocardiography within two weeks afterwards.

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As social creatures, our relationships with other people have tremendous downstream impacts on health and well-being. However, we still know surprisingly little about how our social interactions regulate how we think and feel through life's challenges. Getting help from other people to change how one thinks about emotional events-known as "social reappraisal"-can be more effective in downregulating negative affect than reappraising on one's own, but it is unknown whether this regulatory boost from social support persists when people face the same events alone in the future.

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Incorporating organic semiconducting spacer cations into layered lead halide perovskite structures provides a powerful approach to mitigate the typical strong dielectric and quantum confinement effects by inducing charge-transfer between the organic and inorganic layers. Herein we report the synthesis and characterization of thin films of novel DJ-phase organic-inorganic layered perovskite semiconductors using a naphthalene diimide (NDI) based divalent spacer cation, which is shown to accept photogenerated electrons from the inorganic layer. With alkyl chain lengths of 6 carbons, an NDI-based thin film exhibited electron mobility (based on space charge-limited current for quasi-layered 〈〉 = 5 material) was found to be as high as 0.

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Photoelectrochemical (PEC) CO reduction has received considerable attention given the inherent sustainability and simplicity of directly converting solar energy into carbon-based chemical fuels. However, complex photocathode architectures with protecting layers and cocatalysts are typically needed for selective and stable operation. We report herein that bare CuInGaS photocathodes can drive the PEC CO reduction with a benchmarking 1 Sun photocurrent density of over 2 mA/cm (at -2 V vs Fc/Fc) and a product selectivity of up to 87% for CO (CO/all products) production while also displaying long-term stability for syngas production (over 44 h).

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Article Synopsis
  • The study investigates the relationship between contiguous non-mass enhancement (NME) seen on MRI and the presence of invasive breast cancer or ductal carcinoma in situ (DCIS) in women who had surgical resection.
  • A total of 225 patients were analyzed from a larger pool, revealing that a significant majority had invasive ductal carcinoma, and those without prior chemotherapy showed a strong correlation between the size of NME and the presence of DCIS.
  • The findings suggest that the correlation between NME and DCIS was particularly strong in HER2-positive and non-white patients, which may influence surgical treatment decisions.
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Gas diffusion electrodes are essential components of common fuel and electrolysis cells but are typically made from graphitic carbon or metallic materials, which do not allow light transmittance and thus limit the development of gas-phase based photoelectrochemical devices. Herein, the simple and scalable preparation of F-doped SnO (FTO) coated SiO interconnected fiber felt substrates is reported. Using 2-5 µm diameter fibers at a loading of 4 mg cm , the resulting substrates have porosity of 90%, roughness factor of 15.

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Background: Respiratory diseases represent a global health burden. Because research on therapeutic strategies of airway diseases is essential, the technique of precision-cut lung slices (PCLS) has been developed and widely studied. PCLS are an alternative ex vivo model and have the potential to replace and reduce in vivo animal models.

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Background: Abdominal arterial calcification (AAC) is common among candidates for kidney transplant. The aim of this study is to correlate AAC score value with post-kidney transplant outcomes.

Methods: We modified the coronary calcium score by changing the intake data points and used it to quantitate the AAC.

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Article Synopsis
  • Liquid biopsy involves analyzing circulating tumor cells (CTCs) and cell-free DNA (ctDNA) to get detailed insights about tumors, which could lead to quicker and cost-effective ways to detect and monitor cancers.
  • This review focuses on ongoing clinical trials examining the use of ctDNA from liquid biopsies in both early and metastatic breast cancer cases, highlighting the need for standardized methods.
  • The current use of liquid biopsies in breast cancer is still in its early stages, indicating a need for further research to optimize diagnosis and treatment strategies, especially for detecting recurrences.
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Background/aim: Pancreatic cancer has a very poor prognosis, though outcomes based on age are not well characterized. The aim of current study was to analyze the survival of patients with pancreatic cancer based on age.

Patients And Methods: Using National Cancer Data Base (NCDB), we determined survival outcome based on age among patients with pancreatic cancer.

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The management of cancer has always relied heavily on the imaging modalities used to detect and monitor it. While many of these modalities have been around for decades, the technology surrounding them is always improving, and much has been discovered in recent years about the nature of tumors because of this. There have been several areas that have aided those discoveries.

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This study was designed to examine alternative validity cutoffs on the Boston Naming Test (BNT).Archival data were collected from 206 adults assessed in a medicolegal setting following a motor vehicle collision. Classification accuracy was evaluated against three criterion PVTs.

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Background: Superior mesenteric venous thrombosis (SMVT) is a rare but fatal condition that is typically treated initially with anticoagulation therapy, and if this fails, with endovascular interventions. However, due to its rarity, there are not many studies that have explored the effectiveness of anticoagulation and endovascular therapies in treating SMVT.

Aim: To evaluate patients diagnosed with SMVT who received endovascular therapy in addition to anticoagulation and report technical and clinical outcomes.

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Aims: This study aims at understanding left ventricular (LV) mechanics of non-compaction (LVNC) phenotype using echocardiographic strain analysis and at assessing the association of functional parameters with cardiovascular (CV) outcomes.

Methods And Results: Longitudinal (GLS) and circumferential strain (GCS) as well as rotation of the LV were analyzed in 55 LVNC patients and 55 matched controls. Cardiovascular outcomes were documented for a median follow-up duration of 6 years.

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Research on dyscalculia in neurodegenerative diseases is still scarce, despite high impact on patients' independence and activities of daily living function. Most studies address Alzheimer's Disease; however, patients with Parkinson's Disease (PD) also have a higher risk for cognitive impairment while the relation to arithmetic deficits in financial contexts has rarely been studied. Therefore, the current exploratory study investigates deficits in two simple arithmetic tasks in financial contexts administered within the Clinical Dementia Rating in a sample of 100 PD patients.

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Background: Sleep disturbances are common in Parkinson's Disease (PD), with nocturnal akinesia being one of the most burdensome. Levodopa is frequently used in clinical routine to improve nocturnal akinesia, although evidence is not well proven.

Methods: We assessed associations of Levodopa intake with quality of sleep and perception of nocturnal akinesia in three PD cohorts, using the Parkinson's Disease Sleep Scale (PDSS-2) in two cohorts and a question on nocturnal immobility in one cohort.

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The management of an infected endovascular aortic stent graft can be complex and morbid. Therefore, caution should be exercised before an endovascular approach is considered in patients presenting with a saccular aneurysm who are younger than 65 years and without risk factors for this may indicate a mycotic aneurysm. An open approach with consideration of aneurysm excision should be entertained to prevent an endovascular implantation in the setting of an infected aorta.

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Objective: In Parkinson's disease (PD), nonmotor symptoms (NMS) considerably influence disease progression and cognitive decline. Depression, anxiety, sleep disturbances, and hallucinations (DASH), may indicate a risk for dementia (PDD). Mild impairments in activities of daily living (ADL) caused by cognitive dysfunction are also present in the prodromal stage of PDD.

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The tandem synthesis of benzimidazole and other azoles can be achived by the N-formylation of ortho-substituted anilines followed by a cyclization reaction. However, CO2-based N-formylations with hydrosilane reducing agents are base catalyzed whereas the cyclization reaction is acid catalyzed. The mismatch in catalytic conditions means that only one of the steps can be catalyzed in a single pot reaction.

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Reliable, valid and sensitive measures of dual-task-associated impairments in patients with Parkinson's disease (PD) may reveal progressive deficits unnoticed under single-task walking. The aim of this study was to quantitatively identify markers of progressive gait deficits in idiopathic PD while walking over a circular trajectory condition in single-task walking and in different dual-task conditions: (1) circular walking while checking boxes on a paper sheet as fast as possible and (2) circular walking while performing subtraction of 7 as fast as possible. In addition, we aimed to study the added value of dual-tasking assessment over single (circular) walking task assessment in the study of PD progression.

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Article Synopsis
  • Diabetes negatively affects cognitive function by impairing brain glycogen metabolism, which is essential for neuronal activity and memory.
  • A study using magnetic resonance spectroscopy found that glucose incorporation into brain glycogen was significantly lower in type 2 diabetic rats (GK rats) compared to healthy control rats (Wistar rats).
  • Type 2 diabetes also reduced glucose transport and utilization in the brain, especially affecting regions like the hippocampus, which is critical for memory, and the hypothalamus, involved in energy regulation.
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