Preparation of Molded Fiber Products from Hydroxylated Lignin Compounded with Lewis Acid-Modified Fibers Its Analysis

In this study, molded fiber products (MFPs) were prepared from lignin compounded with Lewis acid-modified fibers using enzymatic hydrolysis lignin (EHL) as a bio-phenol. The fibers were modified and compounded entirely through hot-pressing. To improve the reactivity of enzymatic lignin, hydroxylated enzymatic hydrolysis lignin (HEHL) was prepared by hydroxylation modification of purified EHL with hydrogen peroxide (H2O2) and ferrous hydroxide (Fe(OH)3). HEHL was mixed uniformly with Lewis acid-modified fibers on a pressure machine and modified during the molding process. The purpose of Lewis acid degradation of hemicellulose-converted furfural with HEHL was to generate a resin structure to improve the mechanical properties of a MFPs. The microstructure of the MFP was shown to be generated by resin structure, and it was demonstrated that HEHL was compounded on Lewis acid-modified fibers during the molding process. The thermal stability of the MFP with composite HEHL did not change significantly owing to the addition of lignin and had higher tensile strength (46.28 MPa) and flexural strength (65.26 MPa) compared to uncompounded and modified MFP. The results of this study are expected to promote the application of high lignin content fibers in molded fibers.

The Standard of Prescription of Medicines in Obstetrics and Outpatient Gynecology of a Public Hospital

Objective: This study aimed to describe the pattern of prescription ofmedications in the department of obstetrics and gynecology in a public hospital in Alkharj. Methodology: This is a retrospective study that included data collection of outpatient electronic prescriptions at a public hospital in Alkharj. Data were collected and analyzed using Microsoft Excel. Descriptive data were represented as percentages and numbers. Results: The total number of outpatients who received prescriptions from the obstetrics and gynecology outpatient clinic was 722. The majority were between 20 and 39 years old (76.04%). Most prescriptions were written by consultants (55.12%) followed by residents (42.38%). Most drugs were prescribed as tablets (63.43%) followed by capsules (17.17%) and ampoule/syringe (9.42%). The most prescribed medication was paracetamol (14.68%) followed by ferrous sulfate/ferrous hydroxide (13.85), amoxicilline (8.17%). Conclusion: The pattern of prescription of medications in the department of obstetrics and gynecology, especially during pregnancy, needs to be continuously evaluated in order to promote rational prescription of medications in order to decrease morbidity and mortality associated with therapy. It is important to raise the awareness of health professionals about the use of supplements and antimicrobials.

Hydrothermal growth of ferrous hydroxide terephthalate as a new positive electrode material for supercapacitors

Ni-foam-supported ferrous hydroxide terephthalate is first prepared and applied in supercapacitors with high capacitance at a high mass loading level.

Immobilization of selenite from aqueous solution by structural ferrous hydroxide complexes

Selenium species before and after reaction with FHCs were studied and classified into five groups.