MSHA Approval Process

The hazardous nature of the underground mining environment necessitates the use of equipment and mining products designed to ensure safe usage in this hostile environment. Title 30, code of federal regulations (30 CFR) includes requirements that all equipment and products intended for use in potentially gassy areas of underground mines be approved by the mine safety and health administration (MSHA). Design and performance requirements for many of the products intended for use in the underground environment are also part of 30 CFR. This paper describes the processes available to potential applicants for obtaining MSHA approval. Emphasis is placed on ventilation-related products. A program available to operators for modifying approved equipment is described. A proposed regulation that would broaden the scope of design standards accepted by MSHA is discussed

Upaya Hukum Dalam Menyelesaikan Perkara Pidana Dengan Negara Lain Menurut Undang-undang Nomor 1 Tahun 2006

Tujuan dilakukan penelitian ini adalah untuk mengetahui bagaimana upaya hukum yang dilakukan negara Republik Indonesia menyelesaikan tindak pidana dengan negara lain dan bagaimana syarat-syarat pemberian bantuan untuk menyelesaikan perkara pidana kepada negara lain. Ruang lingkup penulisan ini adalah pada disiplin ilmu hukum, maka penulisan ini merupakan bagian dari penulisan hukum kepustakaan yakni dengan cara meneliti bahan pustaka atau yang dinamakan penelitian hukum normatif dapat disimpulkan, bahwa: 1. Upaya hukum yang dilakukan untuk negara Republik Indonesia menyelesaikan perkara pidana dengan negara asing, yaitu dengan membuat kesepakatan dalam bentuk perjanjian bilateral maupun multilateral dengan negara asing dan berdasarkan prinsip timbal Balik melalui saluran diplomatik serta pembentukan peraturan Perundang-undangan nasional yang mengatur bantuan timbal Balik dalam masalah pidana. Adanya perjanjian Internasional yaitu dapat memberikan jaminan kepastian hukum yang melandasi hubungan kerjasama Internasional dalam penyelesaian perkara pidana. 2. Syarat-syarat pemberian bantuan untuk menyelesaikan perkara pidana kepada negara lain, yaitu: setiap negara asing dapat mengajukan permintaan Bantuan kepada Pemerintah Republik Indonesia. Negara asing dapat mengajukan permintaan Bantuan secara langsung atau dapat memilih melalui saluran diplomatik

UNDERSTANDING COMMUNITY COLLEGE STUDENTS’ EXPECTATIONS FOR ACADEMIC ADVISING

Studies show a link between students’ expectations for advising and their level of satisfaction with advising depending on whether or not their expectations have been met. Previous studies have found that students whose expectations were in alignment with the advising they received reported high levels of satisfaction with their experiences. Most studies on this topic have surveyed students about their expectations for developmental or prescriptive advising. While this approach has yielded useful information about the link between students' expectations for advising and their level of satisfaction with it, the reliance on the developmental and prescriptive frameworks limits what is known about students' actual expectations for the advising process. In this inquiry, I interviewed 17 community college students to determine what they expect from advising and how their experiences with advising have or have not matched their expectations. The findings suggest that students value advisors who are knowledgeable and provide a personalized advising experience. Students often do not know what to expect when coming to advising for the first time, and some of them are nervous before their first appointment. The findings suggest students are reassured when advisors explain the purpose behind the courses they are taking and help them pick courses that are connected to their long-term goals. Students feel like they are receiving personalized advising when advisors ask them about their goals and interests, are patient, and avoid an overly formal or business-like approach to advising. In conclusion, I made recommendations for practice that were supported by the findings of this inquiry and identified avenues for future research on this topic

Adsorption of catechol and comparative solutes on hydroxyapatite

Contemporary medical and dental adhesives often have difficulty sticking to wet surfaces or weaken with long-term exposure to water. Substantial research has been dedicated to finding a means of achieving adhesion in an aqueous environment. A study evaluates the adsorption of catechol relative to other chemical groups as means of gauging how effective they may be as adsorptive groups in adhesives. Contact angle and surface-tension measurements of solutions of catechols and other chemical groups were used to determine their works of adhesion. Adsorption isotherms were also constructed to ascertain Langmuir constants. Solutes containing catechol groups were compared to solutes containing other polar groups to see how well catechol adsorbs to hydroxyapatite, the mineral component of bones and teeth, relative to other chemical groups found in adhesives. The results of this study show that catechol and molecules containing catechol groups have higher rates and energies of adsorption to hydroxyapatite than do groups such as alcohols, amines, and carboxylic acids. © 2003 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 66B: 532–538, 2003Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/34428/1/10041_ftp.pd

Recent approaches in designing bioadhesive materials inspired by mussel adhesive protein

Marine mussels secret protein-based adhesives, which enable them to anchor to various surfaces in a saline, intertidal zone. Mussel foot proteins (Mfps) contain a large abundance of a unique, catecholic amino acid, Dopa, in their protein sequences. Catechol offers robust and durable adhe-sion to various substrate surfaces and contributes to the curing of the adhesive plaques. In this article, we review the unique features and the key functionalities of Mfps, catechol chemistry, and strategies for preparing catechol-functionalized poly- mers. Specifically, we reviewed recent findings on the contributions of various features of Mfps on interfacial binding, which include coacervate formation, surface drying properties, control of the oxidation state of catechol, among other features. We also summarized recent developments in designing advanced biomimetic materials including coacervate-forming adhesives, mechanically improved nano- and micro-composite adhesive hydrogels, as well as smart and self-healing materials. Finally, we review the applications of catechol-functionalized materials for the use as biomedical adhesives, therapeutic applications, and antifouling coatings

Linearly polarized electroluminescence from ionic iridium complex-based metallomesogens : The effect of aliphatic-chain on their photophysical properties

Directly polarized organic light emitting diodes (OLEDs) have the potential to significantly improve the efficiency and reduce the cost of liquid-crystal displays (LCDs) among other applications. However, fluorescent liquid crystals are currently used to achieve this, while phosphorescent emitters would further improve efficiency. To this end, the metallomesogens based on ionic iridium complexes bearing different aliphatic chains substituent, named 7a and 7b, were designed and prepared in this contribution. Both iridium complexes showed smectic mesophase evidenced by differential scanning calorimetry, polarized optical microscopy and X-ray diffraction. Deep-red emission was observed for the iridium complexes in solution and solid state, and complex 7a clearly presented aggregation-induced emission (AIE) behavior in THF-water solvent mixture. Non-doped polarized OLEDs employing complex 7a or 7b as emitter were fabricated and direct linearly polarized electroluminescence with a polarization ratio of 4 was achieved, which is the highest ratio reported for metallomesogens-based phosphorescent OLEDs. Importantly, the choice of linker between the core complex and mesogenic pendent groups is key to achieve distinctive polarization of electroluminescence and AIE. These results are a first step towards the development phosphorescent OLEDs able to efficiently produce polarized electroluminescence

Serpentine and Other Stories

Heidegger’s “being home versus being away from home” dichotomy describes among other things the artist’s place in the contentious relationship between conformity and creativity. The safety and security that comes with a sense of home, and the artist’s journey away from home, away from spaces established and comfortable, are a central theme in this collection of short fictions. These stories are an expression of the strange and wonderful things the author brings back to his readers as he returns to the home of society. Heidegger describes the artist in their finest moment as one who can describe the view from outside society for those within, and in doing so show those inside places to grow and improve, ultimately making our societal “home” a better place for being. It is in this spirit that Serpentine and Other Stories is offered.ProQuest Traditional Publishing Optio

The management of administrative archives in Djibouti : case of the ministerial city

Le présent sujet de recherche porte sur la gestion des archives administratives à Djibouti : cas de la cité ministérielle. Le sujet que nous abordons reste un nouveau chantier à explorer. Jusqu’à ce jour, aucune recherche minutieuse et approfondie n’a été entreprise concernant la question de la gestion des archives à Djibouti en particulier et dans la Corne de l’Afrique en général. De nombreuses questions se posent aujourd’hui ? Comment les archives administratives sont-elles conservées ? Dans quel état se trouvent aujourd’hui ces documents considérés comme les arsenaux de l’administration djiboutienne ? Comment est organisée et gérée la documentation administrative dans les institutions publiques ? Pour essayer de répondre à ces nombreuses interrogations, nous avons fait appel à diverses sources d’information (littérature scientifiques, enquêtes par questionnaire, entretien). Les résultats ont démontré que les structures documentaires sont confrontées à de nombreux problèmes en matière de gestion des archives administratives. Ces difficultés ont pour nom : absence d’archives organisées, exiguïté, locaux de conservation inadaptée, manque de formation du personnel des archives, manque de moyens financiers et enfin indifférence et négligence des pouvoirs publics. Partant de ce résultat, nous proposons des recommandations et des suggestions pour une meilleure réorganisation des archives administratives dans les institutions publiquesThis research subject concerns the management of administrative archives in Djibouti: case of the ministerial city. The subject we are addressing remains a new area to explore. To date, no careful and in-depth research has been undertaken regarding the issue of records management in Djibouti in particular and in the Horn of Africa in general. Many questions arise today? How are the administrative archives kept? In what state are these documents considered to be the arsenals of the Djiboutian administration today? How is administrative documentation organized and managed in public institutions? To try to answer these many questions, we have used various sources of information (scientific literature, questionnaire surveys, interview). The results showed that the documentary structures are confronted with many problems in the management of administrative archives. These difficulties are called: lack of organized archives, cramped conditions, unsuitable conservation premises, lack of training for archive staff, lack of financial means and finally indifference and neglect from the public authorities. Based on this result, we offer recommendations and suggestions for a better reorganization of administrative archives in public institution