Value of using ultrasonic shears in reducing seroma formation after axillary lymph node dissection in breast cancer patients.

Background: Axillary lymph node dissection (ALND) is an essential step in the management of breast cancer. ALND is conventionally performed using radio frequency electrosurgery. The post-operative complications of utilizing such energy (such as prolonged drainage time, seroma, or infection) lead to prolonged recovery.

Epidemiology and clinical outcomes of childhood central nervous system cancers in a large low-middle income country pediatric oncology center: a report on 5051 kids.

Background: Central nervous system (CNS) tumors are the leading cause of cancer-related deaths in children. While most cases come from low-middle income countries (LMIC) where their prognosis is worse, few epidemiological studies are conducted in these regions.

Methods: We conducted a registry-based cohort study for childhood CNS tumors at Children's Cancer Hospital, Egypt (CCHE) over 15 years.

An In Vitro-In Vivo Comparative Study Using Highly Sensitive Radioisotopic Assays to Assess the Predictive Power of Emerging Blood-Brain Barrier Models.

Microfluidic BBB-on-a-chip models (μBBB) aim to recapitulate the organotypic features of the human BBB with great potential to model CNS diseases and advance CNS therapeutics. Nevertheless, their predictive capacity for drug uptake into the brain remains uncertain due to limited evaluation with only a small number of model drugs. Here, the in vivo brain uptake of a panel of nine radiolabeled compounds is evaluated in Swiss-outbred mice following a single intravenously administered dose and compared against results from the microfluidic μBBB platform and the conventional Transwell BBB model.

Investigating the electronic properties and reactivity of polyaniline emeraldine base functionalized with metal oxides.

Due to its appealing qualities, such as its miniature size and the ability to modify physical properties through chemical synthesis and molecular design, polymer material offers considerable advantages over traditional inorganic material-based electronics. Conjugate polymers are particularly interesting because of their molecular design capabilities, which enable the synthesis of conducting polymers with a variety of ionization potentials and electron affinities (EA), and their ability to control the energy gap and electronegativity (χ). Accordingly, density functional theory (DFT) at the B3LYP/SDD model was used to present possible interactions between polyaniline (PANi) and both alkali and heavy metal oxides.

Experimental investigation of a nano coating efficiency for dust mitigation on photovoltaic panels in harsh climatic conditions.

Dust accumulation on photovoltaic (PV) panels in arid regions diminishes solar energy absorption and panel efficiency. In this study, the effectiveness of a self-cleaning nano-coating thin film is evaluated in reducing dust accumulation and improving PV Panel efficiency. Surface morphology and elemental analysis of the nano-coating and dust are conducted.