dermoid cyst is a tumor arises due to embryogenesis impairment. it accounts for less than 0.3 percent of all intracranial masses. a 35 years old man presented with a tonic clonic seizure without any significant past history of seizure. physical examination and imaging propounded epidermoid cyst as diagnosis. the patient had a craniotomy and cyst was totally removed. operative findings and histo...

Analisis Kromium heksavalen (Cr-VI) dan ion sulfat (SO42-) pada air sungai yang ada di lingkungan kota Semarang bertujuan untuk mengetahui kualitas dibandingkan dengan Peraturan Pemerintah Nomor 22 Tahun 2021. Konsentrasi ditentukan menggunakan metode spektrofotometri pereaksi 1,5-diphenylcarbazide dianalisis spektrofotometer UV-Vis panjang gelombang 540 nm, sedangkan penentuan kadar turbidimet...

Natural and anthropogenic factors highly influence the concentration of major (Na, Mg, K, Ca) trace (Sr, Ba, Mn, Li) elements, anions (HCO3−, NO3−, SO42−, Cl−), Sr isotopic signatures. The current study identified signature in groundwaters from Southern Carpathians Apuseni Mountains karst areas Romania its relation to water’s chemistry. ranged between 16.5 658 µg/L, but most groundwaters, it wa...

The rapid changes in the pattern of atmospheric warming as well degradation glaciers Himalayas point to inevitability accurate source characterization and quantification impact aerosols. In this regard, optical chemical properties aerosols, their role radiative effects are examined over a remote high-altitude site Lachung (27.4°N, 88.4°E, 2700 m a.s.l.) eastern during August-2018 February-2020....

In the present study, 11 size classes of particulate matter were collected from a semi-rural site in industrial city Ulsan, South Korea 2019 to investigate distribution and day–night variation water-soluble inorganic ions (WSIIs). Approximately 70% detected WSIIs found fine particles, with Na+, Ca2+, Cl?, NO3? dominant (~70%) coarse particles SO42?, NO3?, NH4+ (SNA) particles. Monthly total was...

over the years, there has been an obvious pollution problem in lagos area, nigeria with high population of over eleven million and the near absence of waste management infrastructures. concentrations of some pollution parameters and trace elements (temperature, ph, salinity, so42-, no3-, po43-, f-, do, bod, cod and coliform, cr, co, ni, ag, cd and pb) were determined from water bodies of isolo ...

Size-segregated aerosols (five stages from <1.1 to >7 μm in diameter) collected a coastal location south-west peninsular India were analysed for water-soluble ionic species, carbonaceous and metallic species on seasonal basis two years (2017–19). The annual mean concentration of the components Na+, Ca2+, Mg2+, Cl−, NO3−, Al, Fe exhibited coarse mode (> 2 μm) enhancement; while NH4+, K+, SO42−, ...

철(III)과 란타넘(III)이 혼합된 황산용액에서 황산나트륨에 의한 란타넘 복염의 침전 및 분리를 조사했다. 복염 침전에 영향을 줄 수 있는 여러 요인 중 황산나트륨 란타넘(III)의 농도, 반응온도 시간, 그리고 철(III) 농도에 대해 용액 Na+, SO42- 이온 란타넘(III) 농도가 높을수록 희토류 침전률이 증가했고, 반응온도가 100°C까지 증가함에 따라 황산염 이온의 형성을 촉진해 증가했다. 또한 반응시간이 증가할수록 철(III)의 감소해 3시간 이후에는 거의 침전되지 않았고, 농도는 큰 미치지 않았다. 황산용액에 황산나트륨을 첨가하면 란타넘(III)을 선택적으로 침전시켜 분리할 있다.

The processed discharges from Tangier Automotive City’s (TAC) Chrafate Wastewater Treatment Plant (WWTP) contaminate the Jouamaa Hakama groundwater and Ouljat Echatt river. We aimed to study unknown interactions between surface water (SW) (GW). A total of nine GW samples eleven SW were taken analyzed in 2021 2022 determine 16 physical chemical parameters (pH, temperature (T), electrical conduct...