Hypertrophic Pyloric Stenosis (HPS) is a condition that occurs in infants with an abnormally thickened pyloric stomach, presented with a symptom of projectile vomiting. The cause of HPS is still unclear. However, it may occur due to multiple factors, including racial, environmental, and genetic factors, with the incidence of one to two out of 1000 live births. We reported a Hypertrophic Pyloric Stenosis (HPS) case in a 21-day-old baby girl (baby I) with projectile vomiting and yellowish diarrhea about six days before admission, which was recorded to be more than five times a day. The patient was hospitalized at Anwar Medika Hospital for five days before being referred to dr. Soetomo Hospital, Surabaya, and a pyloromyotomy were performed. Physical examination and radiological investigations (plain radiographs, Upper Gastrointestinal (UGI), and ultrasonography (USG)) supported the diagnosis of HPS. Ramstedt pyloromyotomy procedure had been conducted with a diagnosis of post-pyloromyotomy hypertrophic pyloric stenosis.

Magnetic resonance imaging (MRI) of meningiomas is essential in predicting their histopathological grade. Meningiomas are the second most common central nervous system neoplasm in adults, usually benign, originating from arachnoid cap cells and categorized according to the WHO classification as benign (grade I), atypical (grade II), and anaplastic (grade III). The study aims to determine the head MRI imaging profile in preoperative meningioma patients confirmed by pathologic results according to WHO 2016 grading. A retrospective study was conducted from January 2017 to March 2022 with 30 samples of meningioma patients who underwent surgery. Preoperative head MRI and pathologic examination were done and tumor location, border, edge, and size were confirmed with pathology results according to WHO 2016 grading. Most patients were 41-50 years old, female (100%), mostly WHO grade I histopathology with transitional type. The most common locations were convexity meningiomas, with the most MRI characteristics of well-defined borders, regular edges, size 0-3 cm, with hypointense T1, hyperintense T2, hyperintense T2 FLAIR, restricted diffusion on DWI, type 2 DCE, homogeneous enhancement pattern, and the most feeding arteries originated from the meningeal artery.

Penelitian ini bertujuan untuk  menganalisis pengaruh variasi ampere pada sudut kampuh 30° terhadap Tensile Test dan Struktur Mikro pada material baja A36 dengan ketebalan 12mm dan menggunakan metode pengelasan GMAW (Gas Metal Arc Welding). Pada posisi pengelasan 1G dengan menggunakan standart pengujian yaitu ASME SECTION IX (2019). Hasil penelitian diperoleh kesimpulan pada pengelasan GMAW dengan variasi arus ampere 125,130,135 dan 140 pada sudut kampuh V 30° yield strength dengan ampere 125 mendapatkan nilai 339,35 MPa. Kemudian ampere 130 mendapatkan nilai 235,83 MPa, Kemudian ampere 135 mendapatkan nilai 396,34 MPa, Kemudian ampere 140 mendapatkan nilai 350,63 MPa. Dan tensile strength dengan ampere 125 mendapatkan nilai 381.50 MPa, Kemudian ampere 130 mendapatkan nilai 235,83 MPa, Kemudian ampere 135 mendapatkan nilai 402,15 MPa, Kemudian ampere 140 mendapatkan nilai 350,63 MPa. Sebagaian besar pada struktur mikro base metal dengan ampere 125, 130, 135 dan 140 di dominasi oleh struktur ferrit. Dan ampere 125, 130, 135 dan 140 maka semakin banyak masukan panas yang diberikan pada material lasan, mengakibatkan daerah HAZ menjadi semakin lebar dan struktur kristalnya juga semakin kecil dan kasar. Pada variasi ampere 125, 130,135 dan 140 terlihat bahwa komposisi struktur mikro dari weld metal didominasi sebagian besar oleh struktur/fasa perlit (gelap).