PENGARUH EDUKASI KESEHATAN TERHADAP KECEMASAN PASIEN PRA-KATETERISASI DENGAN DIAGNOSTIK JANTUNG KORONER DI RSUP DR. M. DJAMIL PADANG

Proses menunggu pelaksanaan prosedur tindakan kateterisasi jantung sering menimbulkan rasa cemas pada pasien. Kecemasan pada pasien pra-katetrisasi harus diatasi karena dapat menimbulkan peningkatan frekuensi nadi dan tekanan darah yang mungkin akan menghambat prosedur tindakan kateterisasi jantung sehingga dibutuhkan intervensi pemberian edukasi kepada pasien pra-katetrisasi. Tujuan penelitian ini adalah untuk mengetahui pengaruh edukasi kesehatan terhadap kecemasan pasien pra-kateterisasi dengan diagnostik jantung koroner di RSUP Dr.M.Djamil Padang. Penelitian ini dilakukan dari bulan September 2022 sampai Febuari 2023 dengan desain penelitian quasi-experiment without control group dengan one group pretest-posttest design dengan sampel 39 responden dipilih secara accidental sampling yang memenuhi kriteria. Alat pengumpulan data yang digunakan yaitu kuesioner State Trait Anxiety Inventory (STAI) Form-Y1. Hasil penelitian menunjukkan bahwa terdapat pengaruh edukasi kesehatan terhadap kecemasan pada pasien pra-kateterisasi dengan diagnostik jantung koroner dengan menggunakan uji analisa chi-squrae dengan nilai p-value<0,001, dengan rerata kecemasan sebelum diberikan edukasi kesehatan sebesar 57,82 dan setelah diberikan edukasi kesehatan sebesar 35,82. Pemberian edukasi kesehatan dapat diterapkan di rumah sakit sebagai salah satu intervensi untuk membantu mengurangi kecemasan pasien saat akan menghadapi pra-kateterisasi jantung dan perawat dapat meningkatkan perannya sebagai edukator kepada pasien untuk memberikan informasi yang tepat kepada pasien pra-kateterisasi jantung. Kata Kunci: Kecemasan, Pra-Kateterisasi, Edukasi Kesehatan Daftar Pustaka: 59 (2006-2022

A coarse-grained molecular dynamics study of segmental structure and mobility in capped crosslinked copolymer films

We present results from molecular-dynamics simulations of a generic bead-spring model of copolymer chains confined between solid walls and report on the glass-transition temperature and segmental dynamics as a function of film thickness and mesh size (the end-to-end distance of the subchains in the crosslinked polymer networks). Apparently, the glass-transition temperature displayed a steep increase for mesh-size values much smaller than the radius of gyration of the bulk chains, otherwise it remained invariant to mesh-size variations. The rise in the glass-transition temperature with decreasing mesh size and film thickness was accompanied by a monotonic slowing-down of segmental dynamics on all studied length scales. This observation is attributed to the correspondingly decreased width of the bulk density layer that was obtained in films whose thickness was larger than the end-to-end distance of the bulk polymer chains. To test this hypothesis, additional simulations were performed in which the crystalline walls were replaced with amorphous or rough walls. In the amorphous case, the high polymer density close to the walls vanished, but the dynamic response of the film was not affected. The rough walls, on the other hand, only slightly decreased the density close to the walls and led to a minor slowing-down in the dynamics at large length-scales

The EURARE Project: development of a sustainable exploitation scheme for Europe’s Rare Earth Ore Deposits

Numerous European industries are heavily dependent on imported rare earth element (REE) raw materials. This has created a need for the European Union (EU) to ensure a sustainable supply of REE minerals, as well as develop from the ground up the currently non-existent European REE extraction and processing industry. In order to support this, the European Commission, through the Seventh Framework Programme (FP7) scheme, funded the EURARE project which runs from 1st January 2013 to 31st December 2017. Through the EURARE project, selected European REE deposits have been researched and in certain cases identified resources were successfully processed for REE production. Several REE deposits across Europe have been the focus of detailed geological field and laboratory work. Mineral concentrates obtained from the Norra Kärr deposit in Sweden, the Kringlerne deposit in Greenland and the Kvanefjeld deposit in Greenland, Rødberg ore from Norway and bauxite residue from Greece were tested from laboratory to pilot scale by means of conventional and innovative metallurgical processing. The novel technologies developed provide efficiency and selectivity in various steps of the metallurgical processing, from ore beneficiation to metal production. A road map for sustainable REE production in Europe is now being developed, which includes an evaluation of the environmental benefits and risks of the EURARE technologies

Acute Appendicitis: After Correct Diagnosis Conservative Treatment or Surgery?

Acute appendicitis is the most common surgical disease presented in ED. Ongoing evidence in the literature, in the last 20 years, shows a lot of benefits in favor of conservative treatment. Despite that conservative treatment does not gain the correct position at the daily practice up to day. A large number of parameters related to acute appendicitis, present diversity in their appearance, so the final estimation of the disease may by unclear and the decision for treatment may be incorrect. We analyze these parameters, aiming to clarify their role in correct diagnosis and decision making on appropriate treatment. In the present study a review of the literature is performed, regarding the etiology, pathology, clinical presentation, laboratory, and imaging data of acute appendicitis. The collection and correct estimation of these parameters, is the key for the correct diagnosis of acute appendicitis. Complicated or uncomplicated cases should be diagnosed preoperatively. The next step is the appropriate treatment, conservative or by surgery. At the present time, excluding generalized peritonitis and sepsis, the majority of patients with uncomplicated acute appendicitis and selected complicated cases can by treated successfully by conservative treatment. The majority of patients do not benefit from appendectomy

Efficient separation of rare earths recovered by a supported ionic liquid from bauxite residue leachate

Bauxite residue (BR) contains substantial concentrations of rare-earth elements (REEs), but their recovery is a challenge. Acidic BR leachates typically comprise much higher concentrations of base elements (g L−1) than those of the REEs (ppm). Thus, adsorbents that are highly selective for the REEs over the base elements are required for the separation. The novel supported ionic liquid phase (SILP) betainium sulfonyl(trifluoromethanesulfonylimide) poly(styrene-co-divinylbenzene) [Hbet-STFSI-PS-DVB] was evaluated for the uptake of REEs (Sc, Y, Nd, Dy) in the presence of base elements (Ca, Al, Fe) from BR leachates. Breakthrough curves from acidic nitrate and sulfate media were investigated, as both HNO3 and H2SO4 are commonly used for leaching of BR. The SILP exhibited a superior affinity for REEs in both media, except in the case of Sc(III) from the sulfate feed. The recovery rates of the trace amounts of REEs from the real nitrate feed were remarkably high (71.7–100%) via a simple chromatography separation, without requiring complexing agents or a pretreatment for the removal of interfering elements. The REEs were purified from the base elements and separated into three sub-groups (scandium, light REEs and heavy REEs) by an optimized elution profile with H3PO4 and HNO3 in a single chromatographic separation step

The Rare Earth Elements: demand, global resources, and challenges for resourcing future generations

The rare earth elements (REE) have attracted much attention in recent years, being viewed as critical metals because of China’s domination of their supply chain. This is despite the fact that REE enrichments are known to exist in a wide range of settings, and have been the subject of much recent exploration. Although the REE are often referred to as a single group, in practice each individual element has a specific set of end-uses, and so demand varies between them. Future demand growth to 2026 is likely to be mainly linked to the use of NdFeB magnets, particularly in hybrid and electric vehicles and wind turbines, and in erbium-doped glass fiber for communications. Supply of lanthanum and cerium is forecast to exceed demand. There are several different types of natural (primary) REE resources, including those formed by high-temperature geological processes (carbonatites, alkaline rocks, vein and skarn deposits) and those formed by low-temperature processes (placers, laterites, bauxites and ion-adsorption clays). In this paper, we consider the balance of the individual REE in each deposit type and how that matches demand, and look at some of the issues associated with developing these deposits. This assessment and overview indicate that while each type of REE deposit has different advantages and disadvantages, light rare earth-enriched ion adsorption types appear to have the best match to future REE needs. Production of REE as by-products from, for example, bauxite or phosphate, is potentially the most rapid way to produce additional REE. There are still significant technical and economic challenges to be overcome to create substantial REE supply chains outside China