bluuebunny/crossref_metadata_2025 huggingface dataset:
Productivity and Efficiency of Precision Farming: The Case of Czech Cereal Production
Authors:   Faculty of Economics and Management, Czech University of Life Sciences Prague, Czech Republic, Čechura Lukáš , Žáková Kroupová Zdenka ,   Faculty of Economics and Management, Czech University of Life Sciences Prague, Czech Republic, Kostlivý Vladimír ,   Faculty of Economics and Management, Czech University of Life Sciences Prague, Czech Republic, Lekešová Michaela ,   Institute of Agricultural Economics and Information, Prague, Czech Republic
Published: September 2021

The paper deals with the sources of competitiveness of Czech cereal production by considering precision farming technology and employing micro-level data collected in the FADN database for the period 2005–2018. The analysis is based on the stochastic frontier modelling of an input distance function in the specification of the four-component model, which currently represents the most advanced approach to technical efficiency analysis. To provide a robust estimate of the model, the paper employs methods which control for the potential endogeneity of netputs in the four-step estimation procedure. Furthermore, the total factor productivity change is calculated using the Törnqvist-Theil index. The results reveal that Czech cereal producers took great advantage of their production possibilities and experienced technological progress, which contributed considerably to productivity dynamics and consequently to an increase in their competitiveness. Precision farming, which is associated with a large number of innovations reflected in technological change and optimal resource use, contributed to higher technical efficiency connected with cost savings in Czech cereal production.
Selfies de la dignité
Authors: Hartog Guitté
Published: September 2021

À la suite d’une quête de témoignages poétiques de filles et de femmes autochtones du Québec et du Mexique sur le thème du courage, cet article présente les résultats d’une démarche d’art-thérapie qui permet de relier l’esprit de résilience dans ses aspects à la fois intimes et politiques. Autour du thème du courage, défini comme la force du coeur nécessaire pour se sortir de situations difficiles, des femmes parfois accompagnées de leurs enfants ont été invitées, par le biais d’ateliers d’art, tant au Québec qu’au Mexique, à créer des témoignages de fierté qui allient le visuel avec l’écrit. Plus de 70 photomontages (textes et images) permettent de mieux comprendre les défis des peuples autochtones et leurs luttes sociales.
Legal Nature of Liability Insurance
Authors: Čolović Vladimir
Published: September 2021

The question of the legal nature of liability insurance is a subject of constant attention, given the specificities of this type of insurance relating to the subject matter of insurance, the status of the insurer in the contract, the goal of the insured to be reached by concluding the contract on this type of insurance, the obligation to report the occurrence of the insured event, the status of the third injured party, etc. The author gives several opinions on the legal nature of this type of insurance, and also analyzes many institutes regarding the conclusion and execution of liability insurance contracts. The liability insurance belongs to the property insurance, but there are many differences. These differences lead to more questions, which primarily concern the liability of the insured as a subject matter of insurance, the possibility for a third injured party to make a direct claim for compensation against the insurer, and the limited amount of insurance. Particular attention is paid in the paper to the relationship of the insured and the insurer, as well as the relationship of the third injured party and the insurer. In addition, the author refers to certain provisions of the Act on Obligations in this area, as well as the provisions of the German Act on Insurance Contracts, which regulates in a much more detailed way some issues related to the legal nature of liability insurance. The paper concludes that liability insurance also includes the public interest, which relates to the protection of third parties, whether or not they can be determined.
Legal Framework for the Role of Local Self Government in the Implementation of the Public Interest
Authors: Đurić Vladimir , Vranješ Nevenko
Published: September 2021

In this paper, the authors analyse the legal framework for the local self governments’ role in the achievement of the public interest on the examples of legal solutions in the Republic of Serbia and the Republic of Srpska. The extent and the manner in which the needs and interests of the local population are met as part of the public interest may be different in different spheres of social life. In this regard, the examples analysed in this paper indicate two, seemingly similar, but essentially divergent tendencies of normative regulation of the participation of needs and interests of local population in the legal determination of the public interest and of the way in which local self-government participating in realization of that interest. The authors affirm the opinion according to which systematic legislation which regulates various areas of social life should define the public interest and within that category emphasizes the needs and interests of the local population. Also, it should regulate the obligatory way in which local self-government units participating in the achievement of that interest. Further regulation of the criteria and legal aspects of the achievement of that interest, especially in terms of their local character, should bе implemented by general acts of local self-government units.
Normative Aspect of the Tax System of Republika Srpska in the Light of Taxation Theory
Authors: Antić Dinka
Published: September 2021

In general, the tax system of Republika Srpska is defined by the Constitution of Republika Srpska, and implemented by a large number of tax legislation. Starting from holistic approach for design of tax systems, it is necessary to design a tax system on the basis of taxation principles. The Law on the Tax System in Republika Srpska represents a unique legislation which combines normative and positive aspects of public finances, and in a broader sense, a compilation of normative, regulatory, operational and analytical dimension of public finances in the sphere of tax systems design. Normative aspect is manifested in prescribing and defining general and individual taxation principles, as well as specific principles for determining taxes, while positive aspect relates to prescribing analytical tools for estimation of tax burden in Republika Srpska. An analysis of provisions of the Law in relation to taxation theory has shown a need for precise formulation of essence of the prescribed principles by implementing legislation, in order to enable a consistent application of the Law within Republika Srpska, aiming at efficient and economical collection of public revenues and enabling optimal tax burden of taxpayers.
Crimination and Solution of Criminal Matters in the Criminal Proceedings of Bosnia and Herzegovina - a Division Between Normative and Actual
Authors: Karović Sadmir , Simović Marina M.
Published: September 2021

In this paper, the central part presents the solution of the criminal-procedural task, that is, the clarification and solution of a specific criminal matter in criminal proceedings of Bosnia and Herzegovina by criminal-law entities, with special attention to restrictive legal conditions of a criminal-procedural nature, as well as certain problems and dilemmas of a practical nature. The extremely dynamic development of modern criminal procedural law in the last two decades is also characterized by the adoption of new criminal procedural solutions with a pronounced tendency of humanization, which directly relates to the catalog of the rights of the suspect or accused person. In order to understand the nature of the criminal proceedings, the conceptual determination and differentiation of the criminal matter as the main subject of the criminal proceedings was made to the criminal matter in an unfair and fair sense, with reference to the practical aspect of the efficient conduct of the criminal proceedings and the illumination and settlement of the criminal matter, respecting the standards of proof. Given the nature of the criminal proceedings, in addition to the criminal matter as the main case, other secondary or ancillary issues are included which do not constitute a criminal offense but relate to the criminal matter (property claim, so-called prejudicial or preliminary issues and costs of the proceedings).
Presumptions for Acquisition of Right to Build
Authors: Lišić Muhamed
Published: September 2021

The right to build as a legal phenomenon from time to time leads to the need to analyze how existing solutions or solutions are subsequently imposed by special regulations on right to build. All of this stems from the premise that the right to build is a dynamic category that changes according to social needs in social and economic terms, which necessarily results in its legal adaptation. Such processes, through which the right of construction passes, undergoe the traces which have the need to be re-examined and analyzed as a phenomenon from the aspect of legal theory and practice. Therefore, the aim of this paper is to address the segment that essentially has the presumptions for the acquisition of right to build, which arise from the causal legal relationship underlying the right to build. Presumptions for the acquisition of right to build are determined for the basic hypothesis, which will be elaborated by analysis and critical review of individual cases, and an explanation of the legal phenomenon regarding the presumptions for the acquisition of right to build, using the theoretical-normative method or the deductive-inductive method with the aim of clarification of the problem of legal presumptions in the emergence of right to build. In addition, a comparative or abstract method was used in explaining the facts as the premise of the determination and nature of the presumptions for acquisition the right to build.
Determinan Konsistensi Penggunaan Kondom pada Laki-Laki Seks dengan Laki-Laki (LSL) Non-Pekerja Seks: Studi Potong Lintang
Authors: Zulaikhah Arum , Ronoatmodjo Sudarto
Published: September 2021

Kasus baru HIV di Indonesia cenderung terus mengalami peningkatan. Sedangkan, tren kasus baru di dunia sudah mengalami penurunan. Laki-laki Seks dengan laki-laki (LSL) merupakan kelompok risiko tinggi HIV. Upaya pencegahan penularan HIV erat kaitannya dengan perilaku seks. Studi ini menggunakan 1.161 sampel Survei Terpadu Biologi dan Perilaku (STBP) 2015 pada kelompok LSL yang termasuk bukan pekerja seks. Studi cross sectional ini bertujuan untuk menganalisis determinan perilaku seks konsistensi penggunaan kondom dengan analisis hingga bivariat dengan menggunakan chi-square dan prevalence ratio. Data didapatkan dengan metode respondent driven sampling (RDS) yang kemudian mengeksklusi LSL pekerja seks. Hasil menunjukkan bahwa faktor-faktor yang berhubungan dengan perilaku penggunaan kondom yang tidak konsisten yaitu pengetahuan status HIV dengan prevalence ratio (PR) 1,14 (95% CI 1,02-1,28), pelayanan pencegahan dan penularan HIV dengan PR 1,18 (95% CI 1,06-1,33), serta akses terhadap internet tentang pencegahan dan penularan HIV dengan PR 1,16 (95 % CI 1,02-1,31). Sehingga, LSL yang tidak mengetahui status HIV diri sendiri, tidak mendapatkan pelayanan pencegahan dan penularan HIV, dan tidak mengakses internet mengenai pencegahan dan penularan HIV berisiko lebih tinggi untuk berperilaku tidak konsisten dalam menggunakan kondom setiap kali melakukan hubungan seks. Maka dari itu, perlu program-program yang berfungsi untuk meningkatkan pengetahuan LSL tentang status HIV dirinya sendiri, dan informasi mengenai pencegahan penularan HIV baik melalui program pelayanan maupun internet untuk meningkatkan konsistensi penggunaan kondom pada LSL non-pekerja seks.
Hubungan Obesitas dengan Kejadian Hipertensi pada Lansia di Posyandu Lansia di Wilayah Kerja Puskesmas PB Selayang II Kecamatan Medan Selayang, Medan
Authors: Asari Hazella Rissa Valda , Helda Helda
Published: September 2021

Populasi individu di seluruh dunia berusia 65 tahun dan lebih tua terus meningkat. Prevalensi hipertensi di Indonesia adalah 26,5%.Situasi hipertensi terus meningkat seiring dengan epidemiologinya yang meluas, yang berkontribusi terhadap meningkatnya beban global penyakit secara keseluruhan. Salah satu faktor hipertensi ialah obesitas. Studi Framingham menunjukkan bahwa baik pria maupun wanita mengalami peningkatan tekanan darah dengan peningkatan kelebihan berat badan. Mengetahui hubungan obesitas dengan hipertensi pada lansia. Desain potong lintang digunakan untuk penelitian yang dilaksanakan pada 9 posyandu lansia di wilayah kerja Puskesmas PB Selayang II pada bulan Agustus 2017. Populasi penelitian  adalah lansia yang mengunjungi ke sembilan posyandu lansia di wilayah kerja Puskesmas PB Selayang II berjumlah 112 lansia. Teknik sampling menggunakan consecutive sampling. Variabel terikat yaitu kejadian hipertensi pada lansia, variabel bebas utama adalah obesitas dan variabel kovariatnya adalah usia, riwayat hipertensi keluarga, aktivitas fisik, dan kebiasaan merokok. Metode pengumpulan data adalah dengan wawancara menggunakan kuesioner. Analisis bivariat menggunakan uji kai kuadrat 95%CI dan analisis multivariat menggunakan uji regresi logistik. 45,5% lansia yang berkunjung ke sembilan posyandu lansia mengalami hipertensi, sedangkan lansia yang obesitas sebanyak 38,4%. Obesitas berhubungan dengan hipertensi  pada lansia  dimana lansia yang obesitas berisiko 6,0 kali mengalami hipertensi dibandingkan dengan lansia yang tidak obesitas setelah dikontrol dengan usia dan riwayat keluarga dengan hipertensi (POR 6,00 (95%CI 2,42-14,83)). Lansia harus mempertahankan berat badan yang ideal agar tidak meningkatkan risiko untuk mengalami hipertensi
Berat Badan Lahir Rendah (BBLR) sebagai Determinan Terjadinya ISPA pada Balita Analisis SDKI Tahun 2017
Authors: Lestari Desinta Ayu , Adisasmita Asri C.
Published: September 2021

Infeksi Saluran Pernapasan Akut (ISPA) yaitu penyakit infeksi yang secara umum ada pada anak usia balita. ISPA diartikan sebagai penyakit saluran pernapasan akut yang disebabkan oleh agen infeksius yang menularkan diantara manusia. ISPA merupakan faktor morbidtas dan mortalitas utama pada Balita. Faktor risiko terjadinya ISPA pada balita salah satunya yaitu BBLR. Jenis penelitan dalam penelitian ini adalah korelasional. Metode penelitian dalam penelitian ini menggunakan cross sectional dengan analisis cox regression dan hasil ukur Risk ratio (RR). Populasi pada penelitian ini sebanyak 17.848 responden dan sampel yang memenuhi kriteria penelitian sebanyak 13.113 responden. Pelaksanaan penelitian dilakukan pada bulan Mei – Juli 2020. Variabel pada penelitian ini meliputi umur balita, jenis kelamin, pendidikan ibu dan ayah, pekerjaan ibu dan ayah, status merokok ibu dan ayah, status imunisasi, pemberian ASI, pemberian vitamin A, tempat tinggal, tingkat kesejahteraan keluarga dan jumlah balita dalam keluarga. Hasil penelitian ini ditemukan hubungan signifikan BBLR tehadap kejadian ISPA pada balita usia 0 - 59 bulan dengan pvalue 0,046 dan nilai RR adjusted 1,14 kali (95% CI 1,00 - 1,31) setelah dikontrol oleh variable jenis kelamin, usia bayi, tingkat kesejahteraan keluarga, pekerjaan ibu dan imunisasi. Penelitian ini ditemukan adanya hubungan signifikan BBLR terhadap ISPA setelah dikontrol oleh variabel confounding jenis kelamin, tingkat kesejahteraan keluarga, pekerjaan ibu dan imunisasi. Oleh karena itu, pentingnya informasi dari tenaga kesehatan bahwa nutrisi ibu saat hamil penting untuk mencegah bayi terlahir BBLR disertai pemberian imunisasi lengkap pada balita untuk mencegah balita mengalami ISPA.
Hubungan Tingkat Pengetahuan Tentang Alat/Cara KB dengan Pemakaian Kontrasepsi Modern pada Wanita Kawin Usia Remaja di Pulau Jawa, Indonesia (Analisis Data SDKI 2017)
Authors: Priskatindea Priskatindea , Ronoatmodjo Sudarto
Published: September 2021

Prevalensi pemakaian metode KB modern pada wanita kawin usia remaja di Pulau Jawa tahun 2017 tergolong masih rendah, yakni 27,8%. Terbatasnya tingkat pengetahuan remaja mengenai pilihan kontrasepsi adalah salah satu hambatan pemakaian kontrasepsi pada remaja. Penelitian ini memiliki tujuan untuk mengetahui hubungan antara tingkat pengetahuan tentang alat/cara KB dengan pemakaian kontrasepsi modern pada wanita kawin usia remaja di Pulau Jawa. Penelitian ini menggunakan data sekunder dengan menganalisis hasil dari Survei Demografi dan Kesehatan Indonesia (SDKI) Tahun 2017. Sampel adalah 309 orang wanita berusia 15-19 tahun yang berdomisili di Pulau Jawa dengan status kawin. Pada hasil ditemukan sebanyak 62,4% responden memakai alat kontrasepsi modern. Berdasarkan Renstra BKKBN 2020-2024 angka ini masih dibawah target capaian modern Contraceptive Prevalence Rate (mCPR) yakni 63,41%. Selain itu diketahui hanya 56,4% wanita kawin usia remaja yang  memiliki tingkat pengetahuan alat/cara KB yang baik (mengetahui setidaknya 7 alat/cara KB). Hasil analisis multivariat menunjukkan bahwa tingkat pengetahuan tentang alat/cara KB tidak mempengaruhi pemakaian kontrasepsi pada wanita kawin usia remaja di Pulau Jawa setelah dikontrol variabel paritas, pendidikan suami, pengambil keputusan KB, dan kepemilikan jaminan kesehatan. (PR = 0,75; CI 95% 0,42-1,36). Kuesioner SDKI kurang dapat menggambarkan tingkat pengetahuan mengenai alat/cara KB karena kurang tereskplorenya pertanyaan yang digunakan sehingga hasil ini kemungkinan masih dipengaruhi adanya bias informasi. Studi ini merekomendasikan untuk dilakukan perbaikan pada pengukuran variabel pengetahuan pada survei selanjutnya dengan menggunakan definisi yang lebih spesifik sehingga dapat menggambarkan tingkat pendidikan responden dengan lebih akurat.
Classification of traffic over collaborative IoT and Cloud platforms using deep learning recurrent LSTM
Authors: Patil Sonali
Published: September 2021

Internet of Things (IoT) and cloud based collaborative platforms are emerging as new infrastructures during recent decades. The classification of network traffic in terms of benign and malevolent traffic is indispensable for IoT-cloud based collaborative platforms to utilize the channel capacity optimally for transmitting the benign traffic and to block the malicious traffic. The traffic classification mechanism should be dynamic and capable enough to classify the network traffic in a quick manner, so that the malevolent traffic can be identified in earlier stages and benign traffic can be channelized to the destined nodes speedily. In this paper, we are presenting deep learning recurrent LSTM based technique to classify the traffic over IoT-cloud platforms. Machine learning techniques (MLTs) have also been employed for comparison of the performance of these techniques with the proposed LSTM RNet classification method. In the proposed research work, network traffic is classified into three classes namely Tor-Normal, NonTor-Normal and NonTor-Malicious traffic. The research outcome shows that the proposed LSTM RNet classify the traffic accurately and also helps in reducing the network latency and in enhancing the data transmission rate as well as network throughput.
Dynamic changes in moisture content and applicability analysis of a typical litter prediction model in Yunnan Province
Authors: Zhang Yunlin , Tian Lingling
Published: September 2021

Background

Forest fire risk predictions are based on the most conservation daily predictions, and the lowest litter moisture content of each day is often used to predict the day’s fire risk. Yunnan Province is the area with the most frequent and serious forest fires in China, but there is almost no research on the dynamic changes and model predictions of the litter moisture content in this area. Therefore, to reduce the occurrence of forest fires and improve the accuracy of forest fire risk predictions, it is necessary to understand these dynamic changes and establish an appropriate prediction model for the typical litter moisture content in Yunnan Province.

Method

During the fire prevention period, daily dynamic changes in the litter moisture content are obtained by monitoring the daily step size, and the relationships between the litter moisture content and meteorological elements are analyzed. In this study, the meteorological element regression method, moisture code method and direction estimation method are selected to establish litter moisture content prediction models, and the applicability of each model is analyzed.

Results

We found that dynamic changes in the litter moisture content have obvious lags compared with meteorological elements, and the litter moisture content is mainly related to the air temperature, relative humidity and wind speed. With an increase in the sampling interval of meteorological elements, the significances of these correlations first increase and then decrease. The moisture content value obtained by directly using the moisture code method in the Fire Weather Index (FWI) significantly different from the measured value, so this method is not applicable. The mean absolute error (MAE) and mean relative error (MRE) values obtained with the meteorological element regression method are 2.97% and 14.06%, those from the moisture code method are 3.27% and 14.07%, and those from the direct estimation method are 2.82% and 12.76%, respectively.

Conclusions

The direct estimation method has the lowest error and the strongest extrapolation ability; this method can meet the needs of daily fire forecasting. Therefore, it is feasible to use the direct estimation method to predict litter moisture contents in Yunnan Province.
ANALYSIS OF THE REINFORCEMENT OF A STEEL STRUCTURE WITH CONCENTRIC DIAGONALS. MANTA UVC CASE
Authors:   Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas (Sangolquí, Ecuador), Pilatasig Julia , Aguiar Roberto ,   Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas (Sangolquí, Ecuador), Cagua Brian ,   Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas (Sangolquí, Ecuador), Andachi Oscar ,   Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas (Sangolquí, Ecuador), Ceron Pablo ,   Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas (Sangolquí, Ecuador)
Published: September 2021

The Pedernales earthquake in 2016 affected several structures, an example is the UVC in the city of Manta, in which a post-earthquake reinforcement with inverted V-shaped diagonals was performed. This paper presents an analysis of the structure without reinforcement and with longitudinal reinforcement, using functions of the CEINCI-LAB Computational System to determine displacements, drifts, and floor shear, in a seismic analysis with the spectral and static equivalent modal method using the spectrum of Manta 2016. In addition, the demand is determined according to the NEC-15 load combinations, using the live, dead and earthquake load states; for the verification of the axial capacity of columns, the effect of the earthquake is used, considering the over-resistance. After that, a design by capacity is carried out in the structure without reinforcement, based on the capacity of the beams, and in the case of reinforcement, an analysis is carried out based on the capacity of the diagonals. It is observed that both the original structure and the reinforcement do not comply with the earthquake resistant philosophy, and it is likely that an earthquake will be affected in a future.
Study of Chemical Properties of Lycopene Containing Tomato Purees
Authors: Sanyal Smriti , Mishra Sunita
Published: September 2021

A study on chemical properties of different treatments prepared using dried tomato (Lycopersicum esculentum), tomato pulp & water was carried out at School of Home Science, B.B.A.U, LUCKNOW during July 2020 to May 2021 to find out most appropriate treatment/puree having high content of lycopene and Vitamin-C, which can be used during off season for consumption, as a substitute to fresh tomatoes. Apart from lycopene & Vitamin-C; total soluble solids, acidity, ascorbic acid content, ash, moisture and pH of the samples drawn from different treatments were also studied during the investigation. Five different types of treatments viz. Dried tomato powder without food additives (T1), Mixture of tomato powder and water (ratio 1:10) without heating (T2), Mixture of tomato powder and water (ratio 1:10) heating at 60-70⁰C for 5 minutes (T3), Fresh tomato pulp (T4) & Tomato pulp cooked at 60-70⁰C for 35 minutes (T5) were used in the investigation. The effect of these treatments was discernible, as reflected on content of lycopene & Vitamin-C. The highest Lycopene content of 90.34±4.18 mg per 100 g was obtained from tomato pulp cooked at 60-70⁰C for 35 minutes followed by dried tomato powder without food additives (66.47±2.02 mg per 100 g). Similarly, highest content of Vitamin-C i.e. 109.03±6.68 mg per 100 g was obtained from dried tomato powder without food additives and lowest 19.43±0.95 mg per 100 g from mixture of tomato powder and water (ratio 1:10) heating at 60-70⁰C for 5 minutes. These results appeared highly promising considering the nature of powder & pulp.
Critical Level of Manganese in Soil and Leaves: It’s Relationship to Fruit Quality of Mangosteen (Garcinia mangostana L.)
Authors: Martias . , Hariyanto Bambang , Purnama Titin , Nofiarli . , Emilda Deni , Hendri . , Siregar Adha Fatmah , Kasno A. , Yuliati Sri , Hernita Desi , Arsana I. Gusti K. D. , Mejaya Made J.
Published: September 2021

Manganese (Mn) is one of the essential micronutrients that plays a crucial role in plants' growth and development and is also considered a limiting factor for crop production. This study aimed to determine the critical level of Mn in soil and leaves for improving the quality of mangosteen fruit. The research was conducted in 2015 in several mangosteen production centers, including West Sumatra (Simalanggang and Banja Laweh), West Java (Karacak and Barengkok), Bali (Belimbing and Selamadeg). A well-maintained of fifteen to twenty years old mangosteen plants were used with uniform soil fertility. Purposive random sampling is conducted in each location to select ten plants from each site. Soil samples are taken from under the plant canopy around 0-30 cm in depth at the four cardinal directions. The terminal leaves that collected from the middle part of the plant canopy are used as the leaf samples. Physiological ripe fruits are taken after ripening with index 3-4. The parameters observed consist of (1) soil pH of H2O, Ca, Mg, Mn-available, (2) levels of Mn, Ca, Mg, and K in the leaves, (3) fruit quality (fruit weight, fruit diameter, fruit skin thickness, aryl weight, seed weight). The results showed the Mn content in the soil ranged from 18.89 to 33.63 ppm. Available Mn is negatively affected by pH, Ca, and Mg exchangeability. Soil Mn is linearly related to leaf Mn with R2 0.76. The critical values of Mn in leaf and soil for mangosteen plants in Indonesia were 425 ppm and 22 to 24 ppm, respectively.
Multidetector Computed Tomography in Diagnosis of Mesenteric Vascular ‎Occlusion
Authors: Dalal Amira Mohammed Salah Abou , Dawoud Mohammed Fathy , Elnemr Aymen Abdul Hameid , Khadrah Rania Sobhy Abou
Published: September 2021

Background: Multidetector computed tomography (MDCT) has high sensitivity and ‎specificity for diagnosing acute primary mesenteric ischemia (MI). MDCT findings vary ‎widely depending on the cause and underlying pathophysiology. MDCT findings of ‎mesenteric ischemia should be characterized on the basis of the cause‏ ‏that lead to early ‎diagnosis and intervention.

Aim: The aim of the study was to assess the impact of different MDCT phases in ‎diagnosis of mesenteric vascular occlusion (MVO).‎

Patients and Methods: This study that was carried out on 20 patients with suspected mesenteric vascular ‎occlusion who were referred to Tanta University Hospitals and General Surgery ‎Department during a period one year starting from May 2018 till May 2019.‎

Results: Out of the 20 studied patients, 11 (55%) of them was male and 9 (45‎‎%) was female, the age of the studied patients ranged from 40 to 73 years old ‎with mean age 57.10 ± 8.85 years. In our study the predisposing factors for MVO were as follow 6 (30%) had ‎Primary thrombosis, 9 (45%) had cirrhosis, 8 (40%) had Portal hypertension, ‎‎4 (20%) had DM, 4 (20%) had Atherosclerosis, and 2 (10%) had ischemic heart ‎disease.‎

Conclusion: Acute and chronic mesenteric ischemia are morbid conditions that are challenging to ‎diagnose. Patients present with variable, nonspecific signs and symptoms, and the ‎physical examination is often benign. A high index of clinical and radiologic suspicion ‎is thus required for diagnosis  MDCT is an accurate, fast, and non-invasive ‎technique which should be used in clinically suspected patients with MVO in order to ‎confirm the diagnosis identify the aetiology and in addition assessing the bowel loop ‎status for adequate management with good prognosis.‎ Familiarity with the MDCT imaging manifestations of mesenteric ischemia allows ‎for a more precise, prompt diagnosis, early institution of therapy and potentially ‎improved patient outcomes.‎
Time‐Resolved Evolution of the 3D Nanoporous Structure of Sintered Ag by X‐Ray Nanotomography: Role of the Interface with a Copper Substrate
Authors: N’Tsouaglo Kokouvi Happy , Milhet Xavier , Colin Jérôme , Signor Loic , Nait-Ali Azdine , Creus Juan , Gueguen Mikael , Gadaud Pascal , Legros Marc
Published: September 2021

The evolution of the nanoporous structure of cylindrical sintered silver samples during high temperature aging, ranging from 200 to 350 °C for 350 min, is studied through in situ computed X‐ray tomography. Investigations are carried out for two types of specimens: pure sintered silver and specimens containing a silver‐copper interface. It is shown that the overall pore evolution is driven by the evolution of very few large ones. The smaller pores, although being more numerous, do not really evolve before being absorbed by the few bigger ones. In pure silver, pore evolution is driven by diffusion (Ostwald ripening) but the presence of an interface promotes faster growth kinetics until the aging time reaches a threshold value, after which a deviation from Ostwald ripening occurs. The transition is a function of the aging temperature. This behavior is associated with the competition between elastic relaxation and surface energy minimization.
Impact of occupational heat stress on worker productivity and economic cost
Authors: Morrissey Margaret C. , Brewer Gabrielle J. , Williams Warren Jon , Quinn Tyler , Casa Douglas J.
Published: September 2021

Heat stress is a growing concern in the occupational setting as it endangers worker health, safety, and productivity. Heat‐related reductions in physical work capacity and missed workdays directly and indirectly cause productivity losses and may substantially affect the economic wellbeing of the organization. This review highlights the physiological, physical, psychological, and financial harms of heat stress on worker productivity and proposes strategies to quantify heat‐related productivity losses. Heat stress produces a vicious‐cycle feedback loop that result in adverse outcomes on worker health, safety, and productivity. We propose a theoretical model for implementing an occupational heat safety plan that disrupts this loop, preventing heat‐related productivity losses while improving worker health and safety.
Highly dispersed manganese dioxide nanoparticles anchored on diatomite surface by sol–gel method and its performance on soybean meal‐based adhesive
Authors: Li Xiaona , Jiang Shuaicheng , Li Jiongjiong , Li Kuang , Li Jianzhang
Published: September 2021

Nanoparticle enhancement has been used as an effective means to improve the performance of biomass adhesives. However, there is an inevitable problem of stress concentration caused by particle agglomeration and thus the adhesive layer is susceptible to damage. Therefore, in this paper, a sol–gel method was used to generate uniformly distributed manganese dioxide (MnO2) nanoparticles on the surface of diatomite (Dia) and used for the modification of soybean meal based wood adhesives. The results showed that MnO2nanoparticles have been successfully anchored on the surface of Dia during the sol–gel process without agglomeration. MnO2/Dia particles could fill in the adhesive gaps and form hydrogen bonds with soy protein molecules, which ensured that the adhesive wet shear strength was increased by 33% to 0.89 MPa. This study provided an idea for the preparation of highly dispersed nanoparticle reinforced adhesives.
Entwicklung der Kriech‐ und Schwindmodelle für Betontragwerke in Österreich und Deutschland – Bewertung der Modelle hinsichtlich der Sensitivität einzelner Eingangsparameter
Authors: Czernuschka Lisa‐Marie , Podroužek Jan , Kratochvilova Martina , Wan‐Wendner Roman
Published: September 2021

Beton ist eines der wichtigsten Baumaterialien in der modernen Ingenieurspraxis und findet sein Anwendungsgebiet im Brückenbau, Hochbau und Grundbau. Beton ist ein Material, welches sein Verhalten im Laufe der Zeit in Abhängigkeit von den Umweltbedingungen verändert. Besonders Verformungen, die durch Kriech‐ und Schwindprozesse hervorgerufen werden, spielen eine wichtige Rolle in der Bemessung von Betonstrukturen – vor allem im Hinblick auf die Gebrauchstauglichkeit. Bereits in den ersten Bemessungsnormen für Betonstrukturen gab es Regelungen hinsichtlich der Berücksichtigung dieser Einflüsse. Zu Beginn wurden die Verformungen mit einem äquivalenten Temperaturgradienten berücksichtigt. Erst mit der Herausgabe der Spannbetonnormen wurden entsprechende Kriech‐ und Schwindmodelle vorgeschlagen und bis hin zur heute gängigen Praxis weiterentwickelt. Im ersten Teil dieser Arbeit wird ein Überblick über die historische Entwicklung dieser Modelle bis zu den heute geltenden Eurocode 2 und fib Model Code‐Richtlinien gegeben. Im zweiten Teil wird eine Sensitivitätsanalyse der Eingangsparameter der aktuellen Modelle präsentiert, gefolgt von einem Anwendungsbeispiel, in dem die Unterschiede der verschiedenen Modelle auf Basis einer Durchbiegungsberechnung veranschaulicht werden.
Stakeholder pressure, green innovation, and performance in small and medium‐sized enterprises: The role of green dynamic capabilities
Authors: Singh Sanjay Kumar , Del Giudice Manlio , Chiappetta Jabbour Charbel Jose , Latan Hengky , Sohal Amrik Singh
Published: September 2021

This study examines direct and indirect effects among stakeholder pressure, green dynamic capabilities, green innovation, and performance of emerging market small and medium‐sized enterprises (SMEs). Using survey questionnaires, we collected multisource data from 248 SMEs in the manufacturing sector. We used the partial least squares (PLS) path modeling approach (PLS‐PM) to examine the hypotheses of the study. The study results indicate that stakeholder pressure influences green dynamic capability, green dynamic capability influences green innovation, and green innovation influences firm performance. Furthermore, results also suggest that green dynamic capability mediates the influence of stakeholder pressure on green innovation and green innovation mediates the impact of green dynamic capability on firm performance. The findings of the study suggest critical implications for both theory and practice.
The Unsaid II: In‐depth accounts of non‐disclosures in clinical supervision from the supervisor's perspective
Authors: Singh‐Pillay Neeshi , Cartwright Duncan
Published: September 2021

Aim

To offer an in‐depth account of non‐disclosures from the supervisors' perspective, this study sought to explore the supervisor's experience of non‐disclosure within the supervisory relationship.

Method

Using interpretative phenomenological analysis (IPA), eight supervisors were interviewed.

Findings

Five super‐ordinate themes are focused on in this paper: (a) Supervisor training, (b) Supervisor non‐disclosure, (c) Management of trainee non‐disclosures, (d) Supporting factors for supervisor disclosures, and (e) The effect of non‐disclosures.

Conclusion/Implications

Exploring non‐disclosures from the supervisor's perspective revealed that the supervisor's perceived lack of power and control at the beginning of supervision set the tone for their identification and management of non‐disclosures in the supervisory relationship. A further finding related to how thoughts about non‐disclosure were closely linked to reluctance to supervise and served the purpose of supervisor strategic self‐presentation.
Validation of Na2MnSnO4/Graphene Anode for Potential Lithium‐Ion Battery Applications
Authors: Suresh babu G. N. , Kalaiselvi N.
Published: September 2021

A novel class of Na2MnSnO4/G graphene composite existing as a hybrid containing SnO2 and NaMnO2 has been synthesized via urea assisted combustion (UAC) method at 900 °C and examined for its suitability in lithium‐ion battery assembly. This work shows the presence of uniform distribution of Na2MnSnO4 (NMS) particles interweaved within graphene layer which in turn enhances the electronic conductivity to realize appreciable electrochemical performance in lithium ion battery application. Na2MnSnO4/G (NMS/G) anode exhibits a capacity of 630 mA h g−1 for 100 cycles at 100 mA g−1 current density and under the high current of 0.5 A g−1, it exhibits as high as 426 mAh g−1 even after 2000 cycles. The title anode assumes importance as promising lithium ion battery anode, wherein the volume expansion and related issues of Sn have been addressed through the selection of custom designed electrode formulation and the preparation of Na2MnSnO4/G (NMS/G) composite with the desired physiochemical properties. Effect of engineered electrodes in alleviating the volume expansion related issues is elaborated in this communication.
In‐situ Construction of Ultra‐Thin Graphitic Carbon Nitride Supported Lanthanum Oxide Nanosheet Heterostructures with Enhanced Photocatalytic Hydrogen Evolution Activity
Authors: Liu Xing , Zhang Tingting , Zhang Lu , Li Yudong , Zhang Jian , Du Yunchen , Xia Debin , Lin Kaifeng
Published: September 2021

The preparation of ultra‐thin graphitic carbon nitride has always been a difficult challenge. Herein, the heterostructure of ultra‐thin graphite carbon nitride (UG−CN) supported lanthanum oxide nanosheets was constructed in situ by the strategy of one‐step calcination and annealing (2D/2D). The thicknesses of UG−CN and LaO were about 2.3 nm and 2.9 nm, respectively. The two types of nanosheets are cross‐stacked with each other, and the strong affinity between atoms leads to the formation of an ultra‐thin 2D/2D hybrid nanomaterial, which has close interface contacts. The strong electron interaction and effective charge separation cause electrons to flow from UG−CN to LaO, then to flow to the Pt promoter to catalyze the H2 generation reaction. In addition, experimental studies have found that the formation of the ultra‐thin 2D/2D structure is mainly caused by the intercalation of lanthanum nitrate in the lamellar structure and the synergistic effect of the combustion‐supporting NO3−accelerating the thermal condensation of melamine during heating. Importantly, the photocatalytic hydrogen evolution rate of LaO/UG−CN reaches 104.1 μmol h−1, which about 12.2 times greater than that of pristine G−CN (8.5 μmol h−1). This work is of significance for the preparation of ultra‐thin graphite carbon nitride in a simple way and the understanding of the corresponding formation mechanism for the composite material.
Impact of change in iron status over time on clinical outcomes in heart failure according to ejection fraction phenotype
Authors: Fitzsimons Sarah , Yeo Tee Joo , Ling Lieng H. , Sim David , Leong Kui Toh Gerard , Yeo Poh Shuan Daniel , Ong Hean Yee , Jaufeerally Fazlur , Ng Tze P. , Poppe Katrina , Lund Mayanna , Devlin Gerry , Troughton Richard , Lam Carolyn S.P. , Richards A. Mark , Doughty Robert N.
Published: September 2021

Aims

The importance of iron deficiency (ID) in heart failure with preserved ejection fraction (HFpEF) is unknown. In HF with reduced ejection fraction (HFrEF), ID is reported as an independent predictor of mortality in HF although not all published studies agree. Different definitions of ID have been assessed, and the natural history of untreated ID not established, which may explain the conflicting results. This study aimed to assess the relationship between ID and mortality in HFpEF, clarify which definition of ID correlates best with outcomes in HFrEF, and determine the prognostic importance of change in ID status over time.

Methods and results

Analyses were conducted on data from 1563 patients participating in a prospective international cohort study comparing HFpEF with HFrEF. Plasma samples from baseline and 6 month visits were analysed for the presence of ID. Two ID definitions were evaluated: IDFerritin = ‘ferritin < 100 mcg/L or ferritin 100–300 mcg/L + transferrin saturation < 20%’ and IDTsat = ‘transferrin saturation < 20%’. The risk of all‐cause mortality and death/HF hospitalization associated with baseline ID (IDFerritin or IDTsat) and change in ID status at 6 months (persistent, resolving, developing, or never present) was estimated in multivariable Cox proportional hazards models. Of 1563 patients, 1115 (71%) had HFrEF and 448 (29%) HFpEF. Prevalence of ID was similar in HFpEF and HFrEF (58%). Patients with ID were more likely to be female, diabetic, and have a higher co‐morbid burden than patients without ID. ID by either definition did not confer independent risk for either all‐cause mortality or death/HF hospitalization for patients with HFpEF [IDFerritin hazard ratio (HR) 0.65 (95% confidence interval 0.40–1.05), P = 0.08; IDTsat HR 1.16 (0.72–1.87), P = 0.55]. In the overall study cohort (HFrEF + HFpEF) and HFrEF subgroup, IDFerritin was inferior to IDTsat in prediction of all‐cause mortality [overall cohort: HR 1.21 (0.95–1.53), P = 0.12 vs. HR 1.95 (1.52–2.51), P < 0.01; HFrEF: HR 1.12 (0.85–1.48), P = 0.43 vs. HR 1.57 (1.15–2.14), P < 0.01]. Persistence of IDTsat at 6 months was strongly associated with poor outcomes compared with never having IDTsat [HR 2.22 (1.42–3.46), P < 0.01] or having IDTsat at baseline self‐resolve by 6 months [HR 1.40 (1.06–1.86), P = 0.02].

Conclusions

Iron deficiency is equally prevalent in HFpEF and HFrEF but is negatively prognostic only in HFrEF. The natural history of ID is important; persistent ID is strongly associated with mortality whereas resolution is not. IDTsat is the superior definition of ID and should inform future trials investigating the efficacy of intravenous iron replacement in patients with HFrEF.
Pain relief by movement representation strategies: An umbrella and mapping review with meta‐meta‐analysis of motor imagery, action observation and mirror therapy
Authors: Cuenca‐Martínez Ferran , Reina‐Varona Álvaro , Castillo‐García Juan , La Touche Roy , Angulo‐Díaz‐Parreño Santiago , Suso‐Martí Luis
Published: September 2021

Objective

To develop a mapping and umbrella review with a meta‐meta‐analysis (MMA) to critically evaluate the current evidence of motor imagery (MI), action observation and mirror therapy (MT) on pain intensity.

Methods

The study involved a systematic search of PubMed, PEDro, Scielo, EBSCO and Google Scholar.

Results

Ten systematic reviews were included in the qualitative synthesis, 70% of which showed high methodological quality. Three reviews found a significant reduction in chronic musculoskeletal pain as the result of applying movement representation methods (MRM) plus usual‐care (UC), with a large clinical effect (standardized mean difference [SMD] of −1.47; 95% CI −2.05 to −0.88; heterogeneity Q = 1.66; p = 0.44; I2 = 0%). However, two reviews showed no statistically significant reduction in acute and postsurgical pain as a result of applying MI plus UC. Four reviews showed no significant reduction in phantom limb pain (PLP) as a result of applying MT plus UC interventions. In four reviews, the MMA showed a significant reduction in complex regional pain syndrome (CRPS) as a result of applying MT plus UC, with a large clinical effect (SMD −1.27; 95% CI −1.87 to −0.67; heterogeneity Q = 3.95; p = 0.27; I2 = 24%). In two reviews, the MMA showed no significant differences in poststroke pain as a result of applying MT plus UC.

Conclusion

Results show that MRM could be effective for chronic musculoskeletal pain, with low to moderate‐quality evidence. The results also show a reduction in pain intensity through MT interventions in patients with CRPS, although these results were not found in patients with PLP or poststroke pain.

Significance

This umbrella review analysed systematic reviews evaluating movement representation techniques, with the aim of synthesizing the available evidence regarding motor imagery, action observation and mirror therapy on pain. The results provide relevant information about the potential clinical use of movement representation techniques in different types of patients with painful conditions.
Observations of the near‐wall accumulation of suspended particles due to shear and electroosmotic flow in opposite directions
Authors: Yee Andrew J. , Yoda Minami
Published: September 2021

On the basis of previous studies, the particles in a dilute (volume fractions φ∞ < 4 × 10–3) suspension in combined Poiseuille and electroosmotic “counterflow” at flow Reynolds numbers Re ≤ 1 accumulate, then assemble into structures called “bands,” within ∼6 μm of the channel wall. The experimental studies presented here use a small fraction of tracer particles labeled with a different fluorophore from the majority “bulk” particles to visualize the dynamics of individual particles in a φ∞ = 1.7 × 10–3 suspension. The results at two different near‐wall shear rates and three electric field magnitudes E show that the near‐wall particles are concentrated about 150‐fold when the bands start to form, and are then concentrated about 200‐fold to a maximum near‐wall volume fraction of ∼0.34. The growth in the near‐wall particles during this accumulation stage appears to be exponential.

This near‐wall particle accumulation is presumably driven by a wall‐normal “lift” force. The observations of how the particles accumulate near the wall are compared with recent analyses that predict that suspended particles subject to shear flow and a dc electric field at small particle Reynolds numbers experience such a lift force. A simple model that assumes that the particles are subject to this lift force and Stokes drag suggests that the force driving particles toward the wall, of O(10–17 N), is consistent with the time scales for particle accumulation observed in the experiments.
Manganese carbonate nanoparticles‐mediated mitochondrial dysfunction for enhanced sonodynamic therapy
Authors: Zhang Haoyuan , Pan Xueting , Wu Qingyuan , Guo Juan , Wang Chaohui , Liu Huiyu
Published: September 2021

Sonodynamic therapy (SDT) has attracted widespread attention due to its non‐invasiveness and deep tissue penetration. However, the development of efficient sonodynamic nanoplatforms to improve the therapeutic efficiency is still one of the main challenges of current research. In this work, a new type of sonosensitizer prepared by a simple method, manganese carbonate nanoparticles (MnCO3 NPs), is used for enhanced SDT. MnCO3 NPs could generate large amounts of 1O2 and •OH under ultrasound irradiation. At the same time, CO2 and Mn ions could be released in a weak acid environment due to the excellent degradability of MnCO3 NPs. The CO2 bubbles caused cell necrosis by ultrasonic cavitation and used for ultrasound imaging. And Mn ions activated the mitochondrial cell apoptosis pathway. In vivo experiments proved that this sonosensitizer with mitochondrial regulatory capacity showed high tumor inhibition rates for enhanced sonodynamic tumor therapy.