Rhombic calcite microcrystals as a textural proxy for meteoric diagenesis

Numerous Phanerozoic limestones are comprised of diagenetic calcite microcrystals formed during mineralogical stabilization of metastable carbonate sediments. Previous laboratory experiments show that calcite microcrystals crystallizing under conditions similar to those that characterize meteoric diagenetic settings (impurity-free, low degree of supersaturation, high fluid:solid ratio) exhibit the rhombic form/morphology, whereas calcite microcrystals crystallizing under conditions similar to those that prevail in marine and marine burial diagenetic settings (impurity-rich, high degree of supersaturation, low fluid:solid ratio) exhibit non-rhombic forms. Based on these experimental observations, it is proposed here that rhombic calcite microcrystals form exclusively in meteoric environments. This hypothesis is tested using new and previously published textural and geochemical data from the rock record. These data show that the vast majority of Phanerozoic limestones characterized by rhombic microcrystals also exhibit petrographic and/or geochemical evidence (depleted δ13C, δ18O, and trace elements) indicative of meteoric diagenesis whereas non-rhombic forms are associated with marine burial conditions. By linking calcite microcrystal textures to specific diagenetic environments, our observations bring clarity to the conditions under which the various microcrystal textures form. Furthermore, the hypothesis that rhombic calcite microcrystals form exclusively in meteoric environments implies that this crystal form may be a useful textural proxy for meteoric diagenesis.

Pengaruh pengapuran dan pemupukkan P, K terhadap produktivitas dan kualitas buah papaya CV. Merah Muda di lahan rawa

Pepaya Merah Delima berpotensi untuk dibudidayakan di lahan rawa lebak. Permasalahan lahan rawa lebak yaitu pH rendah dan ketersediaan hara dalam tanah rendah sehingga perlu diberikan pengapuran dan pemupukan tambahan. Penelitian ini bertujuan untuk mendapatkan dosis kapur, pupuk P dan K terbaik untuk meningkatkan produktivitas dan kualitas pepaya Merah Delima. Penelitian dilakukan di lahan rawa lebak TTP Siak, Kecamatan Sai Mandau (BPTP Riau) dari bulan Januari 2018 sampai Desember 2019. Penelitian menggunakan Rancangan Petak Terbagi dengan petak utama yaitu dua taraf dosis kapur (6 dan 9 t ha-1) dan anak petak kombinasi dari tiga taraf dosis pupuk P2O5 (100, 200, 300 g tan-1) dan tiga taraf dosis pupuk K2O (150, 300, 450 g tan-1), setiap perlakuan terdapat tiga ulangan. Hasil penelitian menunjukkan pemberian kapur dosis 6 t ha-1 dan kombinasi P dan K dosis 300 g tan-1+ 300 g tan-1 berturut-turut, dapat meningkatkan produksi pepaya Merah Delima sampai 51% dengan rata-rata produksi 98,00 kg tan-1, jumlah buah rata-rata 95,45 tan-1, bobot buah 1.031,30 g buah-1, PTT 11,81 oBrix, dan kekerasan buah 55,08 kg cm-2. Pemberian kapur dan tambahan pupuk P dan K efektif untuk memperbaiki sifat lahan rawa lebak sehingga dapat meningkatkan hasil tanaman pepaya Merah Delima. Papaya CV. Merah Delima is potential to be cultivated on tidal swampland. The problems of tidal swampland are low degree of pH and low nutrient availability in the soil, thus it needs additional liming and fertilization. This study aimed to obtain the best dose of lime, also phosphorus and potassium fertilizers to increase the productivity and quality of papaya cv. Merah Delima. The study was conducted at TTP Siak, Sai Mandau district (BPTP Riau) from January 2018 to December 2019. The study used a Split Plot Design with the main plot was two doses of lime (6 and 9 t ha-1) and the subplot was combination of three doses of P2O5 fertilizer (100, 200, 300 g plant-1) and three levels of K2O fertilizer (150, 300, 450 g plant-1), with three replications. The results showed the application of lime at dose of 6 t ha-1 combined by P and K fertilizer of 300 g plant-1 + 300 g plant-1, respectively, could increase papaya production up to 51%, whereas average production 98.00 kg plant-1, average number of fruits 95.45 plant-1, fruit weight 1,031.30 g fruit-1, TSS 11.81 °Brix, and fruit hardness of 55.08 kg cm-2. Application of lime and additional fertilizer into the tidal swampland are effective to improve its characteristics and able to increase the papaya Merah Delima production.

Achieving stomal continence with an ileal pouch and a percutaneous implant

In this study, a soft-tissue-anchored, percutaneous port used as a mechanical continence-preserving valve in reservoir ileo- and urostomies was functionally and morphologically evaluated in eight dogs. During follow-up, the skin failed to attach to the implant, but the intestine inside the stoma port appeared to be attached to the mesh. After reaching adequate reservoir volume, the urostomies were rendered continent by attaching a lid to the implant. The experiments were ended at different time intervals due to implant-related adverse events. In only one case did the histological evaluation reveal integration at both the implant-intestine and implant-skin interfaces, with a low degree of inflammation and the absence of bacterial colonisation. In the remaining cases, integration was not obtained and instead mucosal downgrowth and biofilm formation were observed. The skin-implant junction was characterised by the absence of direct contact between the epidermis and the implant. Varying degrees of epidermal downgrowth, granulation tissue formation, inflammatory cell infiltration and bacterial growth and biofilm formation were prominent findings. In contrast, the subcutaneously located anchor part of the titanium port was well integrated and encapsulated by fibrous tissue. These results demonstrate the opportunity to achieve integration between a soft-tissue-anchored titanium port, skin and intestine. However, predictable long-term function could not be achieved in these animal models due to implant- and non-implant-related adverse events. Unless barriers at both the implant-skin and implant-intestine junctions are created, epidermal and mucosal downward migration and biofilm formation will jeopardise implant performance.

Influence of feed additive with low degree of protein degradability on indicators of nitrogen metabolism in steers body during fattening

The development of beef cattle breeding and obtaining high-quality beef in Russia is currently one of the important tasks. The results of investigations on the influence of a feed additive with a low degree of protein breakdown on the efficiency of nitrogen use in the body of fattening steers and their productivity traits have been presented in the paper. The ration of steers included the feed additive as the source of hard-to-break down protein, which includes components of animal origin (feather fl our, fi sh meal, poultry waste), which have the high biological value of protein and its low degradation in the rumen. The feed additive was introduced into the daily ration at a dose of 1,5 g/kg of live weight. The accounting period of the experiment was 92 days. The degree of protein breakdown in the feed additive was determined on fistula animals in sacco, which was 55,2 %. The feed additive contains (%): 40–43 crude protein, 20–25 crude fat, 2,2 lysine, 1,9 methionine, 2,6 tryptophan, 1,5 calcium, 6,5 phosphorus. It has been found that the introduction of the protein additive with the low protein breakdown in the dose of 1,5 g/kg of live weight into the ration of steers had the positive influence on the indicators of the biochemical composition of blood, digestion in rumen, promoted better use of feed nitrogen and increased the productivity of fattening steers. There were significant differences in the increase in nitrogen deposition in the body of the experimental group of steerls by 29,5 %; the coefficients of nitrogen use from the feed consumed and from the digested increased by 5,57 and 7,71 abs.%, respectively. The average daily weight gain of the steers in the experimental group was 1102,17 g, which was 11,79 % higher compared to the animals of the control group that did not receive the protein additive. The research results indicate the effectiveness of the use of protein feed additive in the ration of young cattle during fattening.

THE LEVELS OF JOY IN MUSLIMS’ CELEBRATIONS: A COMPARISON BETWEEN EID AND WEDDINGS

The current study intended to analyze the levels of joy in religious festivals. It involved 387 Pakistani Muslims including men (n=143) and women (n=282). Data was collected through a specifically developed questionnaire in Urdu. The findings revealed that Pakistani Muslims enjoy their festivals at a very low degree and the levels of joy in Eid-ul-Fitr and Eid-ul-Adha remains significantly lower than the levels of joy in weddings. The level of joy for Pakistanis during different festivals could not exceed 31 percent. The findings further revealed that, instead of being joyous, a little minority of the respondents felt sadness and tiredness while celebrating different festivals. Men had significantly higher levels of joy on Eid-Ul-Fitr and Eid-Ul-Adha as compared to women. Women had significantly higher levels of joy on close-relative’s wedding as compared to men. Unmarried had significantly higher levels of joy on friend’s wedding as compared to married. Kajian kali ini bertujuan untuk menganalisis tingkat keceriaan pada hari raya keagamaan. Ini melibatkan 387 Muslim Pakistan termasuk pria (n=143) dan wanita (n=282). Data dikumpulkan melalui kuesioner yang dikembangkan secara khusus dalam bahasa Urdu. Temuan mengungkapkan bahwa Muslim Pakistan menikmati festival mereka pada tingkat yang sangat rendah dan tingkat kegembiraan di Idul Fitri dan Idul Adha tetap jauh lebih rendah daripada tingkat kegembiraan dalam pernikahan. Tingkat kegembiraan orang Pakistan selama festival yang berbeda tidak bisa melebihi 31 persen. Temuan lebih lanjut mengungkapkan bahwa, alih-alih gembira, sebagian kecil responden merasakan kesedihan dan kelelahan saat merayakan festival yang berbeda. Pria memiliki tingkat kegembiraan yang jauh lebih tinggi pada Idul Fitri dan Idul Adha dibandingkan dengan wanita. Wanita memiliki tingkat kegembiraan yang jauh lebih tinggi pada pernikahan kerabat dekat dibandingkan dengan pria. Belum menikah memiliki tingkat kegembiraan yang jauh lebih tinggi pada pernikahan teman dibandingkan dengan menikah.

Proliferative activity of the epithelium in squamous epithelial lesions of the cervix

As a criterion for precancerous changes in the stratified squamous epithelium of the cervix, its proliferative activity, studied using monoclonal antibodies PC-10 to the antigen of proliferating cell nuclei (PCNA), is considered. The results of the studies showed that patients with a low degree of squamous intraepithelial lesion are characterized by weak proliferative activity, and for patients with a high degree of lesion it is moderate and pronounced. An increase in proliferative activity is a prognostic factor that determines long-term persistence and the likely progression of the lesion.

DESIGN AND EXPERIMENT OF A NEW ROTARY COATING MACHINE BASED ON LabVIEW

In view of the problems of long coating time, complicated manual operation, high multi-seed rate of coated seeds, low qualified rate, and low degree of automation of control equipment in traditional rotary coating machine, a new type of rotary coating machine was designed while using LabVIEW with a complete electric control system, which can effectively improve the speed and quality of coating. The system uses single-chip microcomputer as the lower computer, LabVIEW as the upper computer, and uses programming electronic control technology to set seed coating parameters in advance, precisely control each part and achieve precise supply. Batch supply of powder and liquid greatly improves the automation and intelligence of the operating system, improves the coating efficiency, reduces the multi-seed rate and the seedless rate, and increases the coating pass rate. In order to improve the coating quality and the supply accuracy of the coating machine, the error analysis and calibration test of the seed supply system, powder supply system and liquid supply system were carried out. After the test verification, the supply error was controlled within 2% to meet the demand for precise supply. The test results show that the pass rate of the seeds coated by the new rotary coating machine is increased by 15% to 20% compared with the seeds coated by the traditional manual coating.

National Innovation System: Construction in Progress

The article examines the evolution of the innovation system in Russia over the past years, based on international data. A comparative analysis of the strengths is carried out and development problems are shown, among which the main attention is paid to the low degree of connectedness of the main actors: science, education, the business sector and the state. In recent years, numerous state initiatives have been undertaken with the purpose to place Russia among the countries - world leaders in the field of science, technology and innovation. The strengths of Russia have been and remain the quality of human capital (secondary and tertiary education) and the knowledge creation (number of researchers, number of patents).Opportunities for transforming generated knowledge into innovative goods and services are limited by the low quality of regulatory and political institutions and weak interaction of individual elements of the innovation system

Diversification of the economy of Kazakhstan as a priority of industrial development in post-pandemic conditions

The purpose of the scientific article is to substantiate the expediency of the diversification of the industrial sphere to ensure the economic growth of Kazakhstan in post-pandemic conditions. In this work, the following methods were used: synthesis, integrated assessment, analysis, consistency, logical generalization. The state of economic development of the republic in the conditions of a pandemic is shown. Substained the necessity of continuing modernization and intensification of the diversification process in post-pandemic conditions. Analyzed the development of industrial production over the 30 years of independence of the republic, where the mining sector takes priority. The essential role of the share of mechanical engineering in the structure of the manufacturing industry is determined. Significant measures of state support have been identified, which activate the course of diversification of the real sector of the national economy. Summarized the main problems of diversification of the industrial sphere of Kazakhstan. They include a low degree of digitalization and automation, technological conversion and qualified personnel. Forecasts and recommendations for the effective implementation of industry diversification in the postpandemic period are given. Important proposals here are to optimize the spending of the National Fund, to create the same economic activity regime for business and state-owned companies, to promote the principles of healthy competition and labor productivity growth.