The effect of EOR technologies on the content of petroporphyrins and naphthenic acids ofrecovered heavy oils from Usinskoye field

The effect of EOR technologies on the contents of petroporphyrins and naphthenic acids in recovered crude oil was studied using heavy oil from Usinskoye oil field (Republic Komi), which has high density, high content nickel and vanadium porphyrin complexes, the oxygen compounds and naphthenic acids. It is found that EOR system in combination with thermal steam treatment injection brings about an increase in the content of vanadium porphyrin complexes of crude oils. As a result of the oil-displacement EOR system injection, the naphthenic acids content would decrease in heavy oils

Refugee or migrant crisis?

In recent years, increasing attention has been dedicated to the hazardous and volatile situation in the Middle East, a crisis which has pushed many to flee their countries and seek refuge in neighboring countries or in Europe. In describing or discussing these tragic events, labels such as “European migrant crisis” and “European refugee crisis” started being widely used by the media, politicians, and the online world alike. The use of such labels has the potential to dictate the ways in which displaced people are received and perceived. With this study, we investigate label use in social media (specifically YouTube), the emergent patterns of labeling that can cause further disaffection and tension or elicit sympathy, and the sentiments associated with the different labels. Our findings suggest that migration issues are being framed not only through labels characterizing the crisis but also by their describing the individuals themselves. Using topic modeling and sentiment analysis jointly, our study offers valuable insights into the direction of public sentiment and the nature of discussions surrounding this significant societal crisis, as well as the nature of online opinion sharing. We conclude by proposing a four-dimensional model of label interpretation in relation to sentiment—that accounts for perceived agency, economic cost, permanence, and threat, and identifies threat and agency to be most impactful. This perspective reveals important influential aspects of labels and frames that may shape online public opinion and alter attitudes toward those directly affected by the crisis

Perbandingan Metode Penetapan Kadar Simetidin Menggunakan Spektrofotometri Uv Dan Kromatografi Cair Kinerja Tinggi

Determination ofdrug substance is one of the drug quality control to ensure the safetyof drug. Determination of cimetidine could use UV spectrophotometry and HPLC. The aim ofthis study were to validate the methode using two instruments, to compare both of the method and to apply it intablet dosage forms. Determination of cimetidin using UV spectrophotometry was set on wave length 219 nm. Determination using HPLC with coloumn C18 and mobile phase mixture of methanol: water-phosphoric acid (30:70, v/v), flow rateat 1mL/min and UV detector. The method was validated in terms of accuracy, precision, linearity, selectivity and sensivity. The method of determination of cimetidine using both instruments were campared by analysis of variant. Validation method using UV spectrophotometry showed precision of 0.94%, recovery from 97.50 to 100.91%, good linearity, LOD 0.76 µg/mL and LOQ 2.52µg/mL.Validation using HPLC method resulted value of precision 0.30%, recovery from 98.42 to 101.83%, good linearity, LOD and LOQ of 0.46 and 0.56 µg/mL. The average concentration of cimetidine in tablets by spectrophotometry UV was 101.95%, while in HPLC was 99.69%.The methods accomplied to the requirements according The Indonesian Pharmacopoeia Edition IV. Both methods provided the same results and did not significantly different

Morfometri Dan Komposisi Isi Lambung Ikan Tuna Sirip Kuning (Thunnus Albacares) Yang Didaratkan Di Pantai Prigi Jawa Timur

Ikan tuna sirip kuning mempunyai panjang cagak (fork-length) sepanjang 70 cm, 90 cm, 155 cm hingga yang terpanjang yang pernah tercatat 210 cm. Ikan tuna yang ditemukan di PPN Prigi memiliki ukuran yang beragam. Penelitian ini dapat memberikan informasi kondisi morfometri ikan tuna sirip kuning dari kelas panjang yang ditemukan di perairan pantai Prigi dan kebiasaan makan (food habits) ikan tuna sirip kuning (Thunnus albacares) di pantai Prigi, Kabupaten Trenggalek. 71 ekor sampel ikan tuna sirip kuning diambil pada bulan September – November 2013 dari pengepul di pantai Prigi, untuk selanjutnya di lakukan pengukuran panjang total, berat tubuh dan analisis hubungan panjang-berat serta analisis isi lambung dengan metode frekuensi kejadian, metode volumetrik dan indeks preponderance. Kisaran panjang ikan tuna sirip kuning terdiri atas kisaran panjang kelas kecil 17 cm – 37 cm dengan komposisi organisme dalam lambung yang banyak ditemukan adalah udang dan ikan kecil, sedangkan kisaran panjang kelas sedang 38 cm – 58 cm komposisi organisme dalam lambung adalah ikan dan kisaran panjang kelas besar 59 cm – 78 cm dengan komposisi organisme yang banyak adalah ikan. Penelitian yang telah dilakukan dapat diambil kesimpulan bahwa nilai dari perhitungan regresi sederhana hubungan panjang dan berat ikan tuna sirip kuning di perairan pantai Prigi bersifat allometrik negatif dengan nilai slope b sebesar 2,9518

A Pedagogical Framework for Counselor Educators working with Millennial Students

While literature has concluded that millennial students are dedicated and highly motivated, students may be less patient with the process given that they have grown up in a digital world with information available in seconds (Smith & Koltz, 2012). Therefore, it seems important to consider how millennial generational characteristics fit within the context of a counseling program’s educational environment. The authors situate characteristics of the millennial generation in four theoretical domains to provide pedagogical framework for counselor educators to consider when working with students from the millennial generation. Understanding shifts in generational groups and similarities within each group may provide educators an opportunity to reevaluate traditional pedagogical approaches and to construct new ways of teaching and learning

Insights into the pathogenesis of nicotine addiction. Could a salivary biosensor be useful in Nicotine Replacement Therapy (NRT)?

Nicotine has gained the attention of the medical community due to its insidious addictive mechanisms which lead to chronic consumption. The multitude of compounds derived from tobacco smoke have local and systemic negative impacts, resulting in a large number of smoking-related pathologies. The present review offers insights into nicotine addiction physiopathology, as well as social and medical implications, with emphasis on its correlation with Advanced Glycation End Products (AGEs). Therapeutic strategies and new approaches to nicotine assessment and cessation treatment are discussed, noting that such strategies could take into account the possibility of slow and gradual nicotine release from a device attached to a prosthetic piece, based on salivary nicotine-concentration feedback. This approach could offer real-time and home-based self-therapy monitoring by the physician and the patient for follow-up and improve long-term cessation treatment success- Graphical abstract

The Role of Landscape Connectivity in Planning and Implementing Conservation and Restoration Priorities. Issues in Ecology

Landscape connectivity, the extent to which a landscape facilitates the movements of organisms and their genes, faces critical threats from both fragmentation and habitat loss. Many conservation efforts focus on protecting and enhancing connectivity to offset the impacts of habitat loss and fragmentation on biodiversity conservation, and to increase the resilience of reserve networks to potential threats associated with climate change. Loss of connectivity can reduce the size and quality of available habitat, impede and disrupt movement (including dispersal) to new habitats, and affect seasonal migration patterns. These changes can lead, in turn, to detrimental effects for populations and species, including decreased carrying capacity, population declines, loss of genetic variation, and ultimately species extinction. Measuring and mapping connectivity is facilitated by a growing number of quantitative approaches that can integrate large amounts of information about organisms’ life histories, habitat quality, and other features essential to evaluating connectivity for a given population or species. However, identifying effective approaches for maintaining and restoring connectivity poses several challenges, and our understanding of how connectivity should be designed to mitigate the impacts of climate change is, as yet, in its infancy. Scientists and managers must confront and overcome several challenges inherent in evaluating and planning for connectivity, including: •characterizing the biology of focal species; •understanding the strengths and the limitations of the models used to evaluate connectivity; •considering spatial and temporal extent in connectivity planning; •using caution in extrapolating results outside of observed conditions; •considering non-linear relationships that can complicate assumed or expected ecological responses; •accounting and planning for anthropogenic change in the landscape; •using well-defined goals and objectives to drive the selection of methods used for evaluating and planning for connectivity; •and communicating to the general public in clear and meaningful language the importance of connectivity to improve awareness and strengthen policies for ensuring conservation. Several aspects of connectivity science deserve additional attention in order to improve the effectiveness of design and implementation. Research on species persistence, behavioral ecology, and community structure is needed to reduce the uncertainty associated with connectivity models. Evaluating and testing connectivity responses to climate change will be critical to achieving conservation goals in the face of the rapid changes that will confront many communities and ecosystems. All of these potential areas of advancement will fall short of conservation goals if we do not effectively incorporate human activities into connectivity planning. While this Issue identifies substantial uncertainties in mapping connectivity and evaluating resilience to climate change, it is also clear that integrating human and natural landscape conservation planning to enhance habitat connectivity is essential for biodiversity conservation