Synthesis and Characterization of Ordered and Disordered Mesoporous Alumina as High-Performance Molybdenum-99 Adsorbents

Molybdenum-99 (99Mo) is the parent radioisotope of technetium-99m (99mTc),an essential medical radioisotope for diagnostic agents in nuclear medicine.In 99Mo/99mTc generator, a chromatography column system with 99Mo adsorbent as afiller is usually used to produce 99mTc in hospitals. However, it is still challenging to find high-performance adsorbentsfor Mo adsorption.We have synthesized both ordered and disordered mesoporous alumina and compared their performance as 99Mo adsorbents. These materials were prepared via a soft-templated method using a triblock copolymer as the template, followed by air calcination at 400°C.The amount of nitric acid (HNO3) and the drying time were adjusted systematically to synthesize the ordered mesoporous alumina. The obtained ordered and disordered mesoporous alumina were characterized by low-and wide-angle X-ray diffractions (XRD), nitrogen adsorption-desorption, thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The 99Mo adsorption capacities of these materials were evaluated by using the batch method. The experimental results show that the ordered mesoporous alumina hasa higher 99Mo adsorption capacity of 72.06 mg(Mo)g-1 than the disordered mesoporous alumina (50.12 mg(Mo)g-1). The results indicate the excellent potential of ordered mesoporous alumina as an adsorbent for the 99Mo/99mTc generator column

Studi Sebaran Sedimen secara Vertikal di Perairan Selat Madura Kabupaten Bangkalan

Profil sedimen secara vertikal menjadi salah satu indikasi untuk mempelajari kronologis suatu wilayah, termasuk pantai dan pesisir. Pemahaman ini penting untuk mengetahui pola sedimentasi yang terjadi. Tujuan penelitian ini adalah untuk mengetahui stratifikasi sedimen sebagai bahan awal untuk mempelajari pola sedimentasi di perairan sekitar Jembatan Suramadu. Materi utama penelitian adalah substrat sedimen pada profil kedalaman di 5 stasiun, dan didukung data parameter hidrooseanografi. Analisa contoh sedimen menggunakan skala Wentworth sesuai metode Buchanan (Siswanto, 2010). Hasil visualisasi lapang dan analisa laboratorium atas contoh substrat sedimen menunjukkan bahwa jenis sedimen pada 5 stasiun menunjukkan variasi meski tidak signifikan, dengan dominasi secara umum adalah pasir dan ketebalan yang relatif beragam. Profil jenis sedimen sesuai kedalaman pada kedua sisi Jembatan Suramadu relatif berbeda, pasir berbatu pada sisi barat dan pasir berlumpur pada sisi timur

Ibm Pembelajaran Ramah Anak Bagi Orang Tua dan Guru Tk-paud di Kec. Godong Kabupaten Grobogan

Children are a gift from the Almighty so that every person who shall be blessed with a child to love , guide , provide the best education and welfare efforts in accordance with the ability of the child\u27s parents have since also the future of the family role of the teacher is also a central factor that will deliver learners . Analysis of the situation described above , we can identify some partner issues , among others : 1 ) Potential - kindergarten early childhood teachers in the district are still in need of assistance Godong in improving skills in educating children . So it takes a child-friendly learning activities for parents to students to be smart and love to learn . 2 ) lack of skills in using instructional media in AUD. 3 ) Lack of storytelling skills / storytelling for children . Storytelling is a skill that must be honed so often the message will be delivered at the time told me to be accepted by the students . Ape is as a medium for membelajarkan children to play and learn fun activities and messages to be delivered to be well received by the students . The role of the teacher is also a central factor that will lead learners . Skills necessary to educate very very well to the teaching and learning activities for children early childhood / kindergarten , educators are required to understand the child\u27s character and desire not the desire of parents

Facilitating personal development for public involvement in health-care education and research: a co-produced pilot study in one UK higher education institute

BACKGROUND: Public involvement in the education of students enrolled on higher education programmes has gained impetus. For students enrolled on professional health-care programmes and health-related modules in the UK, there is also a requirement by professional bodies to include "service user" involvement in preparation for entry to a professional health-care register and continuing professional development. Actively involving patients and members of the public in research is also a requirement by many research funders. In this article, the term Patient and Public Involvement (PPI) will be used throughout to include lay members, volunteers, user and carers. OBJECTIVES: A unique pilot study was introduced across a health faculty to integrate PPI in a deliberate way. It aimed to provide an educational, focused programme of events that was meaningful to develop and inform peoples' knowledge, skills and confidence for their involvement in the health faculty. DESIGN: PPI members volunteered to sit on a steering group to determine the educational journey; the outcomes of three focus groups with PPI members (N = 32) and academics informed the programme content which included a range of workshops covering the exploration of public roles and barriers to involvement, introduction to research and interviewing skills. RESULTS: The workshops were well attended, and outcomes indicated the importance of co-production when designing, delivering and evaluating programmes. DISCUSSION: Co-production underpinned this pilot study, resulting in a programme which was meaningfully received by public contributors. RECOMMENDATIONS: Co-production was seen as integral to this research to ensure that outcomes were indeed "fit for purpose"

First report on methicillin-resistant Staphylococcus aureus of Spa type T037, Sequence type 239, SCCmec type III/IIIA in Malaysia

Methicillin-resistant Staphylococcus aureus (MRSA) from Malaysia were shown to possess staphylococcal cassette chromosome mec (SCCmec)-III and IIIA. Spa sequencing and multi-locus sequence typing (MLST) documented t037 and ST 239 (CC8) for 83.3% of the isolates. This confirms observations in several other Far Eastern countries and corroborates the epidemicity of this clone

Long-Term Results from an Epiretinal Prosthesis to Restore Sight to the Blind

PurposeRetinitis pigmentosa (RP) is a group of inherited retinal degenerations leading to blindness due to photoreceptor loss. Retinitis pigmentosa is a rare disease, affecting only approximately 100 000 people in the United States. There is no cure and no approved medical therapy to slow or reverse RP. The purpose of this clinical trial was to evaluate the safety, reliability, and benefit of the Argus II Retinal Prosthesis System (Second Sight Medical Products, Inc, Sylmar, CA) in restoring some visual function to subjects completely blind from RP. We report clinical trial results at 1 and 3 years after implantation.DesignThe study is a multicenter, single-arm, prospective clinical trial.ParticipantsThere were 30 subjects in 10 centers in the United States and Europe. Subjects served as their own controls, that is, implanted eye versus fellow eye, and system on versus system off (native residual vision).MethodsThe Argus II System was implanted on and in a single eye (typically the worse-seeing eye) of blind subjects. Subjects wore glasses mounted with a small camera and a video processor that converted images into stimulation patterns sent to the electrode array on the retina.Main Outcome MeasuresThe primary outcome measures were safety (the number, seriousness, and relatedness of adverse events) and visual function, as measured by 3 computer-based, objective tests.ResultsA total of 29 of 30 subjects had functioning Argus II Systems implants 3 years after implantation. Eleven subjects experienced a total of 23 serious device- or surgery-related adverse events. All were treated with standard ophthalmic care. As a group, subjects performed significantly better with the system on than off on all visual function tests and functional vision assessments.ConclusionsThe 3-year results of the Argus II trial support the long-term safety profile and benefit of the Argus II System for patients blind from RP. Earlier results from this trial were used to gain approval of the Argus II by the Food and Drug Administration and a CE mark in Europe. The Argus II System is the first and only retinal implant to have both approvals