Redox-mediated polymerization and removal of benzidine from model wastewater catalyzed by immobilized peroxidase

Peroxidase from Momordica charantia was highly effective, active and stable for the oxidation of benzidine from model wastewater. There was no oxidative polymerization of benzidine without any redox mediator. Various experimental parameters were standardized for the maximum oxidation of benzidine by peroxidase. The maximum oxidation of this pollutant was observed in the presence of 0.05 mM phenol, 0.75 mM H2O2 and 0.2 U mL-1 bitter gourd peroxidase (BGP) in a buffer of pH 5.0 at 40°C. Comparative study was performed by soluble as well as surface immobilized bitter gourd peroxidase on Con A layered calcium alginate-starch beads for the degradation of benzidine from model wastewater. Immobilized bitter gourd peroxidase was used for the successful and effective removal of water polluted with benzidine in batch as well as in continuous reactor. The effect of detergents and some water miscible organic solvent was also reported for the oxidation of benzidine from polluted water. Oxidation of benzidine in batch process by soluble and immobilized peroxidase was highly effective and it could remove 72 and 100% benzidine by soluble and immobilized bitter gourd peroxidase, respectively. The reactor filled with immobilized enzyme retained more than 45% benzidine removal efficiency even after 30 days of its continuous operation. The absorption spectra of the treated benzidine exhibited a marked difference in absorption at its λmax as compared to untreated benzidine polluted water.Keywords: Alginate, bitter gourd peroxidase, concanavalin A, removal, immobilizatio

The Implementation of Task-Based Language Teaching (TBLT) to Improve Students’ Ability In Writing Narrative Text

The objectives of this research were to find out whether or not the implementation of TBLT improves the students’ ability in writing narrative text. The method used was quasi-experimental research design involving two groups; experimental group and control group. The sample consisted of 33 students in experiment group and 33 students in control group. This research applied TBLT as tool to improve the students’ ability in writing narrative text. The researcher employed writing test to measure the effects of the treatment. The data obtained through writing test and were analyzed by using descriptive and inferential statistics through SPSS Version 20 while data on questionnaire were analyzed by using Likert Scale. The result showed that the probability value (significant 2-tailed) was lower than the level of significance (0.00

Pengaruh Sistem Keuangan Desa Dan Sistem Pengendalian Intern Terhadap Akuntabilitas Pengelolaan Dana Desa

The purpose of this study was to determine the effect of the village financial system and internal control system on the accountability of managing village funds in the districts of Bilihu and Gorontalo. This research involved village heads, village secretaries, hamlet heads, BPD, youth leaders, and community leaders, totaling 113 respondents. Descriptive analysis, a structural equation model (SEM), and AMOS 24.0 were used in this study. This quantitative research combines primary data obtained through observation, interviews, questionnaires, and pictures. The results of the study found that the village financial system and the government's internal control system both had a positive and significant effect on the accountability of village financial management in villages throughout Biluhu District, Gorontalo Regency. Keywords : Village financial system, Internal Control System, Fund Management Accountability &nbsp

Utilisation of fish silage by ruminants

1. The literature in the following areas is reviewed: ruminant protein rationing systems and methods of measurement of dietary protein degradability; rate of passage through the ruminant digestive tract; protein supplementation of diets for growing cattle; production and utilisation of fish silage and protection of dietary protein by formaldehyde treatment. 2. Eleven acidified fish silages were prepared using a range of formalin levels (0-40 cm3kg-1 fish waste). White fish filleting scrap was minced and well mixed with formic acid (1.5-2.0% v/w) before the addition of the appropriate level of formalin. The silages were stored before analysis in closed plastic containers at a temperature of 23 +/-

Procedure for Creating Personalized Geometrical Models of the Human Mandible and Corresponding Implants

The greatest challenge in engineering of human mandible implants lies in its customization for each patient individually, by adapting them to the patient's anatomical, morphological and physiological characteristics. This customization maximizes the efficiency of the patient's health recovery process. The application of anatomically shaped and personalized bone endoprosthesis, fixation plate and scaffold models bring great improvement to the clinical practice in maxillofacial surgery. It ensures that implant meets the biomechanical and dentofacial aesthetic requirements and, ultimately, reduces complications during recovery. In order to create such implants, novel procedure based on personalized models of mandible and its parts, and also plates and scaffold implants is presented in this paper. Design procedures for the creation of the personalized models are based on the application of Method of Anatomical Features, which has been already applied for the creation of geometrical models of human bones. This procedure improves pre-surgical planning, enables better execution of surgical intervention, and as a consequence improves patient recovery processes

Meningkatkan Aktivitas Dan Hasil Belajar Siswa Dengan Metode Eksperimen Pada Mata Pelajaran IPA Kelas V SDN I Bukal

Penelitian ini dilatar belakangi rendahnya hasil belajar siswa yang dapat di buktikan dengan nilai Ketuntasan klasikal pada m ata pelajaran IPA adalah 47,1%. Penelitian ini bertujuan  untuk meningkatkan aktivitas dan hasil belajar siswa dengan penerapan metode eksperiman pada mata pelajaran IPA siswa kelas VSDN I Bukal. Jumlah siswa sebanyak 17 orang. Penelitian ini adalah penelitian tindakan kelas yang terdiri atas dua siklus. Rancangan penelitian mengikuti tahap penelitian yang mengacu pada modivikasi diagram Kemmis dan Mc. Taggart, yaitu 1) perencanaan tindakan, 2) pelaksanaan tindakan, 3) observasi, dan 4) Refleksi. Tehnik pengumpulan data yang digunakan adalah lembaran observasi guru dan siswa, LKS, serta tes hasil belajar siswa. Hasil penelitian menunjukan bahwa terjadi peningkatan hasil belajar siswa, dari siklus I ke siklus II. Peningkatan trsebut dibuktikan dengan hasil tes analisis tes hasil belajar siswa yang diperoleh pada siklus I adalah: siswa yang tuntas 11 dari 17 siswa atau persentase ketuntasan klasikal sebesar adalah 64,7%, daya serap klasikal 75,5%, seta persentase aktivitas klasikal siswa  adalah 64,4%  atau dalam kriteria cukup dan persentase hasil observasi aktivitas guru 75% kriteria cukup. Pada siklus II siswa yang tuntas 15 dari 17 siswa atau ketuntasan klasikal 88,2% atau dalam kriteria baik  dan persentase hasil observasi aktivitas guru 88,6% krieria baik. berdasarkan hasil penelitian menunjukan bahwa penerapan metode eksperimen dapat meningkatkan aktivitas dan hasil belajar siswa pada mata pelajaran IPA siswa kelas V SDN I Bukal. Kata Kunci: Metode Eksperimen, Hasil  Belajar, PT

Comparison of dose calculation algorithms model: convolution, superposition, and fast superposition in 3-D Conformal Radiotherapy (3D-CRT) treatment plan

The important task of radiotherapy is to make sure that the radiation dose to the target tumour is accurate as prescribed and the dose to the organ at risk is minimized. Therefore, the aim of this study is to compare and evaluate the efficiency of the dose calculation algorithms: namely convolution, superposition, and fast superposition which installed in Treatment Planning System (TPS) (CMS XiO, USA). In this study, we modified protocols described in IAEATecdoc-1583, where four typical treatment techniques such as single field, multiple field, wedge field, and multi-leaf collimated (MLC) field were analysed from the system. The measurement data for calculated dose and measured dose were taken from thorax CIRS anthropomorphic phantom. The assessment of algorithms was done by comparing the point dose calculated with the measured dose. The study shows that the superposition algorithm produced relative error less than ±3% which passed 100% of all reference points, whilst the convolution algorithm and fast superposition presented relative error more than ±3% which passed 82% and 91% of reference points, respectively. In conclusion, the evaluation of radiotherapy treatment plan shall take into account the type of dose calculation algorithm model in order to optimize radiotherapy treatment and ensure the radiation safety to the patient

TOWARDS PATIENT SPECIFIC PLATE IMPLANTS FOR THE HUMAN LONG BONES: A DISTAL HUMERUS EXAMPLE

Plate implants are the most used internal fixators for the surgical treatments of the bone fractures. In clinical cases where there is a requirement to use reconstruction plates, and/or to stabilize the fracture, adaptation of plate shape (e.g. bending) to the patient anatomy is required, and it is usually done during the surgery. In order to eliminate the need for intra-operative bending of plates, precontoured plates can be used. These are patient specific implants whose shape and geometry is adapted to the anatomy and morphology of the specific patient. In order to create a patient specific 3D model of the plate implant, the bone model acquired through medical imaging (e.g. Computed Tomography - CT) is commonly used. By the application of various CAD techniques, the volume model of specific plate implant can be created, and used for the production of the plate, by conventional or additive manufacturing technologies. In this paper the authors present a new approach to the creation of a 3D parametric model of the patient specific plate implant for distal humerus. By using such model the surgeon can perform preoperative planning and adapt shape of plate to the specific patient before the surgery, and in this way he can improve pre, intra and post-operative processes

A roadmap to develop dementia research capacity and capability in Pakistan: a model for low- and middle-income countries

Objective To produce a strategic roadmap for supporting the development of dementia research in Pakistan. Background While global research strategies for dementia research already exist, none is tailored to the specific needs and challenges of low- and middle-income countries (LMIC) like Pakistan. Methods We undertook an iterative consensus process with lay and professional experts to develop a Theory of Change-based strategy for dementia research in Pakistan. This included Expert Reference Groups (ERGs), strategic planning techniques, a “research question” priority survey, and consultations with Key Opinion Leaders. Results We agreed on ten principles to guide dementia research in Pakistan, emphasizing pragmatic, resource sparing, real-world approaches to support people with dementia, both locally and internationally. Goals included capacity/capability building. Priority research topics included raising awareness and understanding of dementia, and improving quality of life. Conclusion This roadmap may be a model for other LMIC health ecosystems with emerging dementia research cultures

GEOMETRICAL MODELS OF MANDIBLE FRACTURE AND PLATE IMPLANT

In the oral and maxillofacial surgery, there is a requirement to provide the best possible treatment for the patient with mandibular fractures. This treatment presumes application of reduction and fixation techniques for proper stabilization of the fracture site. The reduction of the bone fragments and their fixation is much better performed when geometry and morphology of the bone and osteofixation elements (e.g. plates) are properly defined. In this paper, a new healthcare procedure, which enables application of personalized plate implants for the fixation of the mandibular fractures, is presented. Geometrical models of mandible and plate implants, presented in this research, were created by means of the Method of Anatomical Features (MAF), which has been already applied to the creation of accurate geometrical models of various human bones, plates and fixators. By using such geometrically and anatomically accurate models, orthopedic and maxillofacial surgeons can better perform pre-operative tasks of simulating and planning the operation, as well as an intraoperative task of implanting the personalized plate into the patient body