bluuebunny/crossref_metadata_2025 huggingface dataset:
High Healthcare Utilization in Adolescents with Sickle Cell Disease Prior to Transition to Adult Care: A Retrospective Study
Authors: Kanter Julie , Bhor Menaka , Li Xin , Li Yunfeng , Paulose Jincy
Published: October 2019

Background: The transition from pediatric to adult care in the US is often difficult for individuals with sickle cell disease (SCD). Young adults (18 to 25 years of age) have higher acute care utilization and an increased risk of poor outcomes. The current study was designed to provide greater insights into patients (16 to 18 years of age) with SCD prior to their transition to adult care.

Objectives: To describe current treatment patterns, pain crises prevalence, SCD-related complications, and healthcare resource utilization (HCRU) in 16-to-18-year-old patients with SCD.

Methods: From 1/1/2015-6/30/2017 using MarketScan Databases, patients were included if they were 16 to 18 years old at the index date, had ≥1 inpatient or 2 outpatient SCD diagnosis claims during the identification period, and were continuously enrolled in the database for at least one year prior (baseline) and post index date. Outcomes included medications, disease management interventions, Charlson Comorbidity Index (CCI), vaso-occlusive (VOC) crises requiring healthcare visits, HCRU, and SCD complications.

Results: 1,186 patients were included; most (64.3%) were female. The mean CCI was 1.3 (SD: 0.7). In the overall cohort, patients experienced an average of 3.9 (SD: 4.2) VOCs and most patients (61.1%, n=725) had chronic complications during the one-year follow-up. Pulmonary disease (31.1%, n=369) was the most frequent complication; blood transfusions (mean: 8.4 [SD:7.0]) and iron-chelating therapies (mean: 8.6 [SD:10]) were the most common interventions and medications, respectively. In the 16 to 18 year old group, patients with SCD had 2.0 (SD = 2.3) hospital admissions, 3.4 (SD = 4.0) ER visits, and 5.0 (SD = 4.2) office visits.

Conclusions: Prior to transition to adult care, adolescents with SCD already have significant acute and chronic disease-related complications, possibly contributing to frequent healthcare visits. Increased attention to this age group, including improvements in disease modifying therapy, are needed prior to transition to adult care systems to improve outcomes.
Clinical and Economic Outcomes in Low-risk Pulmonary Embolism Patients Treated with Rivaroxaban versus Standard of Care
Authors: Peacock W. Frank , Coleman Craig I. , Wells Phil , Fermann Gregory J. , Wang Li , Baser Onur , Schein Jeff , Crivera Concetta
Published: October 2019

Background: Rivaroxaban, a fixed-dose oral direct factor Xa inhibitor, does not require continuous monitoring and thus reduces the hospital stay and economic burden in low-risk pulmonary embolism (LRPE) patients. Study Question: What is the effectiveness of rivaroxaban versus the standard of care (SOC; low-molecular-weight heparin, unfractionated heparin, warfarin) among LRPE patients in the Veterans Health Administration? Study Design: Adult patients with continuous health plan enrollment for ≥12 months pre- and 3 months post-inpatient PE diagnosis (index date=discharge date) between October 1, 2011- June 30, 2015 and an anticoagulant claim during the index hospitalization were included. Measures and Outcomes: Patients scoring 0 points on the simplified Pulmonary Embolism Stratification Index were considered low-risk and were stratified into SOC and rivaroxaban cohorts. Propensity score matching (PSM) was used to compare hospital-acquired complications (HACs), PE-related outcomes (recurrent venous thromboembolism, major bleeding, and death), and healthcare utilization and costs between the rivaroxaban and SOC cohorts. Results: Among 6746 PE patients, 1918 were low-risk; of these, 73 were prescribed rivaroxaban, 1546 were prescribed SOC, and 299 were prescribed other anticoagulants during the index hospitalization. After 1:3 PSM, 64 rivaroxaban and 192 SOC patients were included. During the index hospitalization, rivaroxaban users (versus SOC) had similar inpatient length of stay (LOS; 7.0 vs 6.7 days, standardized difference [STD]=1.8) but fewer HACs (4.7% vs 10.4%; STD: 21.7). In the 90-day post-discharge period, PE-related outcome rates were similar between the cohorts (all p>0.05). However, rivaroxaban users had fewer outpatient (15.9 vs 20.4; p=0.0002) visits per patient as well as lower inpatient ($765 vs $2,655; p<0.0001), pharmacy ($711 vs $1,086; p=0.0033), and total costs ($6,270 vs $9,671; p=0.0027). Conclusions: LRPE patients prescribed rivaroxaban had similar index LOS and PE-related outcomes, but fewer HACs, and lower total costs than those prescribed SOC.
Psychological change in egogram for university student for years
Authors: H BANDO , T YOKOYAMA
Published: October 2019

Background: Health problems concerning psychosomatic bio-psycho-social matters have been recently emphasized. Among them, the research for transactional analysis (TA) and egogram have been in focus. Authors have investigated egograms in various subjects including university students. Case presentation: The case is a 23-year old male student. When he entered the university at 19 years, his egogram was good-hearted type (Type Na). His current egogram is administrator type (AC inferior). Concerning egogram factors, the actual values were as follows: Critical Parent (CP) was 3 to 5, Nurturing Parent (NP) was 14 to 15, Adult (A) was 5 to 15, Free Child (FC) was 8 to 12 and Adapted Child (AC) was 12 to 5. Discussion: Elevated CP may be from understanding rules and organizational theories in society. Increased A is probably from learning the expertise of liberal arts, computers, mechanics and others in the university. When he was a freshman, he could not decide several matters by following other people from high AC level. Through his various experiences, he can judge adequately with achieving human growth. Consequently, AC seemed to be at the standard level. The current report will be expected to become useful reference for further research in the future.
Gepedes no IFCE-campus Quixadá: uma experiência de ensino-pesquisa
Authors: Da Silva Daniele Cariolano , Lemos Claudeth da Silva , Silva Francisco Tiago Ribeiro , Lima Venícius de Sousa
Published: October 2019

O estudo foi desenvolvido no Grupo de Estudos e Pesquisas Educação, Docência e Estudos Surdos (Gepedes) do Instituto Federal de Educação, Ciência e Tecnologia do Ceará (IFCE), Campus Quixadá. Objetivou-se analisar as contribuições e os desafios vivenciados por licenciandos em geografia que fazem parte do Gepedes. Trata-se de uma pesquisa qualitativa do tipo estudo de caso, que recorre ao relato reflexivo para apreensão de dados e tem cinco sujeitos participantes. Os resultados evidenciaram possibilidades formativas nos processos de constituição de saberes, reflexões críticas, posturas colaborativas e competências acadêmicas vislumbradas nos discursos e nas ações discentes. Os desafios se expressaram no âmbito da aprendizagem de estudos temáticos e nas práticas investigativas inseridas na área didático-pedagógica. Assim, constatou-se a pertinência de reformulações curriculares e da criação de grupos de estudos e pesquisas sobre formação docente nos Institutos Federais de Educação.
PENERAPAN MIXTURE MODEL KEPADA APLIKASI HELPDESK BERBASIS WEB
Authors: Kirana Mira Chandra , Etisa Landong Moral
Published: October 2019

The use of mixture models in the application implementation helpdesk aims to find the spread of data from various data hordes in order to find data near the desired results. It aims to facilitate the search for information derived from the company's technical documents. The use of helpdesk applications is to manage complaint data or any problems that are owned by customers, thus requiring service providers. Because companies engaged in services have a number of customers who are not small and have different problems. As well as having customers in different locations - requiring customer data management that can store location data with ease to use, it is preferred to store customer's address data. For that helpdesk application also uses map mapping online by using google map.Purpose in order to present the data online and can be accessed wherever located.
SISTEM INFORMASI PELAPORAN REALISASI ANGGARAN PENDAPATAN DAN BELANJA DESA BERBASIS WEB
Authors: Sufaidah Siti , Arifin Muhyiddin Zainul , Chumaidi Mochammad
Published: October 2019

Revenue and Expenditure Budget Village or abbreviated to APBDes every year among all the village's equipment is always busy with the utilization or management of village revenues to be allocated to several activities that aim to build the village. The main obstacles in APBDes management are lack of reporttransparency, inefficient performance, inadequate reporting thus hampering the implementation of rural development. As a form of effort to overcome this problem, it is necessary to design software application reports realization of web-based village budget usage. APBDes realization information system is web-based, using PHP web programming language and MySQL database. In implementing this system, it must be implemented or uploaded on the web server to be accessible on the internet. Because this implementation isexperimental, the author uses the XAMPP application as his web server. With the presence of these systems, the public can get information about APBDes easily without having to come to the village hall or ask for the explanation to the village apparatus and Government at the kecamatan level can also control and evaluate the reporting of APBDes relaisaasi online. So the transparency of realization of APBDes can be realized and able to answer people's doubts about the village apparatus and monitor the progress and development of their village.Keywords:APBDes, Information System, Website, Reporting, Village Finance
Fungsi Pilihan Kode Tutur dalam Wacana Keagamaan: Studi Kasus pada Ceramah K.H. Anwar Zahid, Ustaz Abdul Somad, dan Ki Joko Goro-Goro (The Function of Speech Code Choice in Religious Discussion: A Case Study on the Speeches of K.H. Anwar Zahid, Ustaz Abdul Somad, and Ki Joko Goro-Goro)
Authors: Eliya Ixsir
Published: October 2019

ABSTRAKFungsi pilihan kode tutur dapat diartikan sebagai penggunaan pilihan kode dalam suatu tuturan. Adapun, tujuan penelitian ini ialah menganalisis fungsi pilihan kode tutur dalam ceramah K.H. Anwar Zahid, Ustaz Abdul Somad, dan Ki Joko Goro-Goro. Data dikumpulkan dengan metode simak. Analisis data dilakukan dengan menggunakan metode padan, metode kontekstual, serta dilakukan dengan teknik baca markah. Berdasarkan hasil analisis data, kode yang ditemukan dalam ceramah K.H. Anwar Zahid, Ustaz Abdul Somad, dan Ki Joko Goro-Goro adalah kode yang berasal dari kode Jawa, Indonesia, Sunda, Inggris, Arab, dan Melayu. Pilihan kode tutur yang ditemukan dalam ceramah berbentuk alih kode, campur kode, dan tunggal kode. Fungsi pilihan kode tutur yang dominan muncul adalah representasi nilai pendidikan, ajang eksistensi dan sarana komunikasi, serta sarana kontrol terhadap masyarakat.ABSTRACTThe speech code choice function can be interpreted as the use of choice of code in a speech. Meanwhile, the objective of this study is to analyze the speech code choice function in the speeches of K.H. Anwar Zahid, Ustaz Abdul Somad, and Ki Joko Goro-Goro. The data were collected by simak method. The data analysis was conducted by using matched method, contextual method, and also by mark reading technique. Based on the results of data analysis, the code found in the K.H. Anwar Zahid, Ustaz Abdul Somad,and Ki Joko Goro-Goro speeches are codes derived from Java, Indonesian, Sundanese, English, Arabic and Malay codes. The speech code choice found in the speech is the form of code switching, code mixing, and single code. The dominant of speech code choice function is the representation of educational values, the arena of existence and means of communication, and the means of control over society.
Alih Kode dan Campur Kode dalam Kegiatan Pembelajaran di SMP Perbatasan Cirebon-Kuningan (The Switched Code and Mixed Code in the Learning Activities of High School in the Border of Cirebon-Kuningan)
Authors: Nurpadillah Veni
Published: October 2019

Alih kode dan campur kode juga dibutuhkan guru dan siswa dalam interaksi kegiatan pembelajaran. Tanpa alih kode dan campur kode yang baik, pembelajaran tidak akan berlangsung dengan efektif. Alih kode dan campur kode sering dilakukan oleh dwibahasawan dan multibahasawan. Salah satu daerah yang memiliki dwibahasawan dan multibahasa adalah daerah perbatasan Cirebon Kuningan. Masyarakat di Kota Cirebon menggunakan dua bahasa, salah satunya menggunakan bahasa Jawa Cirebon karena berbatasan dengan Jawa Tengah, ada juga masyarakat Cirebon yang menggunakan bahasa Sunda khususnya pada masyarakat yang tinggal diperbatasan Cirebon Kuningan. Peneliti tertarik meneliti alih kode dan campur kode guru dan siswa dalam kegiatan pembelajaran di SMP perbatasan Cirebon Kuningan dengan mengambil data di kelas VII SMP dan MTS dalam kegiatan pembelajaran. Peneliti mengambil data pada kelas VII karena siswa pada masa ini sedang mengalami masa transisi (peralihan) dengan mengambil data di tiga sekolah yang berada tepat di daerah perbatasan Cirebon Kuningan. Data dikumpulkan dengan metode simak dengan teknik simak bebas libat cakap. Wujud pilihan kode dianalisis menggunakan teknik baca markah dan teknik ganti. Berdasarkan hasil analisis data, wujud pemilihan kode dalam dalam kegiatan pembelajaran di SMP perbatasan Cirebon Kuningan berupa alih kode dan campur kode.Kata KunciÂ Â Â  : Â Sosiolinguistik, wujud pemilihan kode tutur, alih kode, dan campur kode.
Entre políticos e mestres de cultura popular: discurso, poder e ideologia nos museus
Authors: Tolentino Átila
Published: October 2019

The narratives produced in expográficos circuits discourses are loaded with meanings, intentions and ideologies that can be analyzed from the exposed objects, the voids, the said and the unsaid. From a theoretical contribution of authors related to the social sciences and, specifically, to the field of Sociomuseology working with the issue of construction of discourses, memory and power, this article aims to analyze the discourses of expográficas narratives of a traditional museum, Municipal Museum of Borborema, and a community museum, the Museum of the Living Eye School Time, both located in the State of Paraíba. In this perspective, the analysis goes through about social subjects are represented in these two museums, diametrically opposed in the form of construction of its exhibitions.

Keywords: museums, speech, memory, power, ideology
Luminescence in lanthanum-gallium tantalate
Authors: Buzanov Oleg A. , Kozlova Nina S. , Siminel Nikita A. , Zabelina Evgeniya V.
Published: October 2019

The optical and luminescent properties of undoped La3Ga5.5Ta0.5O14 lanthanum- gallium tantalate crystals grown in different atmospheres of pure argon gas and argon gas with different oxygen percentages have been studied. The optical absorption α(λ) spectra that characterize integral absorption and reflection have been measured in the 250–700 nm region. The spectral absorption functions have been calculated from the measured α(λ) spectra using the Kubelka–Munk formula. Luminescence has been observed in all the test specimens over a wide spectral region (375 to 650 nm) at 95 and 300 K. The luminescence spectra of the test crystals have a fine dispersed pattern represented by low-intensity discrete luminescence peaks. The 95 K luminescence peak maxima are more pronounced and shifted towards shorter wavelengths by ~16 nm (~0.1 eV) relative to the respective room temperature peaks. The crystal growth atmosphere has been demonstrated to largely affect the luminescent properties of the crystals: the higher the oxygen concentration in the growth atmosphere, the lower the luminescence intensity due to concentration quenching, the luminescence peak maxima shifting towards longer wavelengths. The positions of discrete luminescence peaks have been shown to correlate with the main 420 and 480 nm absorption bands with the respective ~20 nm (~0.2 eV) Stokes shift for crystals grown in different atmospheres. The luminescence in lanthanum-gallium tantalate crystals is a complex process involving several luminescence mechanisms.
DNA barcoding of aphid-associated ants (Hymenoptera, Formicidae) in a subtropical area of southern China
Authors: Siddiqui Junaid Ali , Chen Zhilin , Li Qiang , Deng Jun , Lin Xiaolan , Huang Xiaolei
Published: October 2019

As one of the most abundant and complex groups of terrestrial insects, ants have associations with many other organismal groups, such as hemipteran insects producing honeydew. With the aim of expanding the knowledge base of ant species associated with aphids, this study analyzed mitochondrial COI barcodes of 301 ant samples for 37 aphid-associated ant species in a subtropical area of southern China. Sequence analyses revealed that the intraspecific and interspecific distances ranged from zero to 7.7%% and 0.2 to 31.7%, respectively. Three barcoding approaches – Automatic Barcode Gap Discovery, Bayesian Poisson Tree Processes and Generalized Mixed Yule-coalescent – were used to help delimit ant species based on COI sequences, and their results corresponded well with most of the morphospecies. All three approaches indicate cryptic diversity may exist within Tetramorium bicarinatum and Technomyrmex albipes, with intraspecific genetic distances of 7.7% and 6.24%, respectively. Our analyses also reported five species for the first time from Fujian Province of China, and the COI sequences of nine species are newly added into the GenBank. This study provides information about species diversity of aphid-associated ants in subtropical China and compiles a DNA barcode reference library for future ant barcoding work.
Intronização de um "Trump tropical"
Authors: Aubrée Marion
Published: October 2019

Quais são os elementos capazes de fornecer uma explicação para a eleição do ex-capitão e deputado federal Jair Bolsonaro? Baseado na experiência da sua autora como antropóloga trabalhando no Brasil há mais de quarenta anos sobre as diversas correntes religiosas que informam as crenças e opiniões dos habitantes desse país o texto aponta as sucessivas transformações das mentalidades e dos imaginários religiosos, assim como as conjunturas políticas que favoreceram esse desenlace impensado.
Strength and Deformability of Reinforced Concrete Beams with Indirect Reinforcement in the Form of Welded Meshes in Compressed Zone
Authors: Tamrazyan Ashot , Kharun Makhmud
Published: October 2019

One of the ways to improve the strength and deformation characteristics of reinforced concrete structures is the use of indirect reinforcement. Such reinforcement, located perpendicular to the compressive force, by limiting transverse deformations creates a volumetric stress state and increases the efficiency of concrete in compression. The article presents a method for assessing the stress-strain state of structures, which allows to take into account the reserves of bearing capacity and apply more economical design solutions. The calculation of strength is considered and the diagram of concrete deformation reinforced by indirect reinforcement is obtained. It is shown that the relative deformations at the apex of the compression diagram depend mainly on the relative level of lateral reduction and concrete strength. It is shown that the lower the concrete class, the less indirect reinforcement affects its strength characteristics, but the limiting deformations increase more strongly, and therefore an almost horizontal section appears near the top of the diagram, the longer the concrete class and the higher the reinforcement percentage.
Study on Dispersion Stability Characteristics of TiO2 Nanoparticles in PCM for Use in Cold Storage Air-Conditioning
Authors: Li Xiao Yan , Miao Xin Yue
Published: October 2019

A new organic phase change materials (PCM) for cool storage was developed for use in cold storage air-conditioning. The thermal properties of the new organic PCM were measured with a differential scanning calorimeter (DSC). To improve the thermal conductivity of the new organic PCM, the further research of using nanocomposite technology to the organic PCM SSW-4 was made. The effects of nanoparticles concentration on dispersion, ultrasonic time and consistence of dispersant in the best ultrasonic time on the dispersion were investigated by experiment. The results showed that the thermal conductivity of the nanocomposite PCM TiO2 /SSW-4 increased by approximately 16.27% compared to that of the organic PCM SSW-4. The best dispersion condition of preparation for TiO2 /SSW-4 was confirmed.
Morphology, Mechanical and Thermal Properties of Poly(Lactic Acid)/Propylene-Ethylene Copolymer/Cellulose Composites
Authors: Wacharawichanant Sirirat , Opasakornwong Patteera , Poohoi Ratchadakorn , Phankokkruad Manop
Published: October 2019

This work studied the effects of various types of cellulose fibers on the morphology, mechanical and thermal properties of poly(lactic acid) (PLA)/propylene-ethylene copolymer (PEC) (90/10 w/w) blends. The PLA/PEC blends before and after adding cellulose fibers were prepared by melt blending method in the internal mixer and molded by compression method. The morphological analysis observed that the presence of cellulose in PLA did not change the phase morphology of PLA, and PLA/cellulose composite surfaces were observed the cellulose fibers inserted in PLA matrix and fiber pull-out. The phase morphology of PLA/PEC blends was changed from brittle fracture to ductile fracture behavior and showed the phase separation between PLA and PEC phases. The presence of celluloses did not improve the compatibility between PLA and PEC phases. The tensile stress and strain curves found that the tensile stress of PLA was the highest value. The addition of all celluloses increased Young’s modulus of PLA. The PEC presence increased the tensile strain of PLA over two times when compared with neat PLA and PLA was toughened by PEC. The incorporation of cellulose fibers in PLA/PEC blends could improve Young’s modulus, tensile strength, and stress at break of the blends. The thermal stability showed that the degradation temperatures of all types of cellulose were less than the degradation temperatures of PLA. Thus, the incorporation of cellulose in PLA could not enhance the thermal stability of PLA composites and PLA/PEC composites. The degradation temperature of PEC was the highest value, but it could not improve the thermal stability of PLA. The incorporation of cellulose fibers had no effect on the melting temperature of the PLA blend and composites.
Improvement of Poly(Lactic Acid) Properties by Using Acrylonitrile-Butadiene Rubber and Polyethylene-g-Maleic Anhydride
Authors: Wacharawichanant Sirirat , Wisuttrakarn Chawisa , Chomphunoi Kasana , Phankokkruad Manop
Published: October 2019

This research prepared poly(lactic acid) (PLA) and PLA/acrylonitrile-butadiene rubber (NBR) blends before and after adding polyethylene-g-maleic anhydride with 3 wt% of maleic anhydride (PE-g-MA3) 3 phr. The effects of NBR and PE-g-MA3 on morphological, mechanical and thermal properties of PLA and PLA blends were discussed. The morphological analysis observed the two-phase morphology of PLA/NBR blends, and it was observed the cavities generated due to NBR phase detachment during sample fracture, and droplets of NBR phase at higher NBR content. The PE-g-MA3 addition could improve adhesion between PLA and NBR phases due to the decrease of cavities in PLA matrix and droplet size of NBR. The mechanical properties showed the impact strength and strain at break of PLA/NBR blends dramatically increased when the amount of NBR increasing. The addition of PE-g-MA3 significantly improved the impact strength of PLA/NBR blends. The thermal properties showed the NBR addition had effect slightly on the melting temperature of PLA/NBR blends. The filling of NBR and PE-g-MA3 greatly decreased the percent crystallinity of PLA more than two times. The thermal degradation of pure PLA and NBR proceeds by one step, while the thermal degradation process of PLA/NBR and PLA/PE-g-MA3 proceeds by two steps. Which the first step showed a large mass loss of PLA degradation and the second step showed a small mass loss of PE-g-MA and NBR degradation.
Research on Technology of Welding Aluminum Foil in Pressure Vessel Based on Ultrasonic Rolling Welding
Authors: Jia Li Wei , Li Xing Ling , Li Wu Sheng
Published: October 2019

For solving the problems of low bonding strength of anticorrosive layer inside the pressure vessel, the technology of ultrasonic continuous welding applied in aluminum alloy foil is researched in this paper. The technological parameters which affect the welding quality most are analyzed. Through the finite element simulation, the stress and temperature distribution of metal layer and welding head during the welding process are analyzed. The influence of important parameters such as welding pressure and thickness of metal layer on welding quality are studied. The optimal combination of key process parameters such as welding speed, welding pressure and thickness of metal layer are discussed by orthogonal test. The results show that the bonding strength at the weld can reach the tensile strength of the metal itself, and is also qualified to the design expectation.
Preparation and Drilling Performance of Orderly Arranged Diamond Bit
Authors: Xu Liang , Liu Yi Bo , Luo Xiao Li , He Wen Kai , Deng Xue Wei
Published: October 2019

This paper introduces the application of orderly arranged diamond bit and the technology of realizing diamond orderly arrangement in bit. Two kinds of conventional bits and one bit with diamond orderly arrangement were used in the test to drill reinforced concrete. By experimental results: under the same conditions (same matrix, same diamond grade and concentration), the drilling speed of orderly arranged diamond bit is increased by 13.1%, the life is increased by 11.5%, compared with the conventional diamond bit. The drilling speed of orderly arranged diamond bit is increased by 15.8%, the life is increased by 8.9%, compared with the conventional bit which the matrix is same but the diamond concentration is 5% higher. On the basis of saving diamond and reducing cost of bit, orderly arrangement can still improve the efficiency and life of drill bit, it embodies the superiority of diamond bit with diamond orderly arrangement.
The Influence of Chemical Additives on Strength of Wood-Cement Composite
Authors: Zaprudnov Vyacheslav , Sanaev Victor , Karpachev Sergei , Levushkin Dmitry , Gorbacheva Galina
Published: October 2019

The strength and strains of the wood-cement composite primarily depend on the main technоlogical factors such as the used type of binder and wood filler, the method of wood filler preparation, the method of molding, the conditions of hardening. The aim of this work is an experimental study of the chemical additives influence on wood filler to localize the harmful effects of water-soluble wood substances on the processes of hydration and hardening of cement. Using the additives, it is possible to achieve satisfactory strength parameters even on green wood. The maximum strength was obtained when complex chemical additives were applied. The most effective additives involved calcium chloride, liquid glass, aluminum sulfate, lime and ethanolamines. The optimal consumption and ratio of the complex additives components costs also depend on the degree of preliminary wood exposure.
Influence of Thickness of Air Gap on Concrete Curing in Formwork with Transparent Cover
Authors: Koroteev Dmitry D. , Kharun Makhmud
Published: October 2019

Heat treatment of concrete is used to speed up its curing. Therefore, this process allows getting complete product in a short time and it is used at the plants for manufacturing of concrete elements. Fossil fuels are used for this purpose. An important task for engineers and scientists is to reduce costs of the manufacturing and make it ecological by introducing energy-saving technologies and renewable energy resources. The employment of solar energy for heat treatment is one of the ways to settle the problem. However, the efficiency of such engineering solution depends on type and construction of the solar energy equipment. The formwork, equipped by transparent cover, is chosen as the object of research. The research work is devoted to determination of optimal thickness of air gap between concrete element and transparent cover of the formwork. The results and methodology, as well as the information about materials and boundary conditions of the experiments are given in the research work. The obtained results allow increasing efficiency of employment of solar energy for manufacturing of concrete elements at the plants.
Heat Treatment of Self-Compacting High-Strength Concrete in Cast In Situ Construction Using Infrared Rays
Authors: Kharun Makhmud , Koroteev Dmitry D.
Published: October 2019

Self-compacting high-strength concrete (SCHSC) is an innovative concrete that has superior physical and mechanical properties, and does not require vibration for placing and compaction. Heat treatment (HT) of SCHSC can significantly accelerate the strength growth during cast-in-situ construction, and allows to reduce the turnover of formwork, the labor costs for construction, and the construction period. The issue of strength development of SCHSC during HT has been studied. SCHSC of R28 = 100 MPa was studied. Test specimens were cured with HT by infrared rays for 7, 9, 11, 13, 16 and 24 hours. Then warmed specimens were tested for compressive strength after 0.5, 4, 12 and 24 hours of cooling period. Study was carried out on the basis of analyzing, generalizing and evaluations of experimental data. A mathematical model is proposed for determining the compressive strength of SCHSC after one day of curing with HT.
Numerical Analysis of Punching Shear Failure of Self-Compacting Fiber Reinforced Concrete (SCFRC) Ribbed Slabs
Authors: Fodzi Nurulain Hanida Mohamad , Hisbany M.H. Mohd
Published: October 2019

This paper deals with behavior and capacity of punching shear resistance for ribbed slabs produce from self-compacting fiber reinforced concrete (SCFRC) by application of nonlinear finite element method. The analysis will be achieved by using ABAQUS software. The nonlinear finite element analysis by ABAQUS will be compare with the experimental results. Results and conclusions may be useful for establishing recommendation and need to be acknowledged.
Laboratory evaluation of falling-head infiltration for saturated soil hydraulic conductivity determination
Authors: Concialdi Paola , Bagarello Vincenzo , Alagna Vincenzo , Iovino Massimo
Published: October 2019

Falling-head one-dimensional infiltration procedures, such as the simplified falling-head (SFH) technique, yield estimates of saturated soil hydraulic conductivity, Ks, with parsimonious and rapid experiments. Factors that can influence determination of Ks by the SFH technique were tested in the laboratory on three repacked soils differing by particle diameter ranges (0-2000, 0- 105 and 105-2000 mm, respectively). Using the theoretically calculated depth of ponding on the infiltration surface, D, instead of the measured one had a small impact on the Ks calculations (means differing by a factor of 1.1-1.2, depending on the soil). For the finest soil, Ks decreased by 3.1 times as D increased from 40 to 135 mm but D did not affect Ks for the coarsest soil, yielding in general the highest Ks values. The abrupt increase of the infiltration rate close to the end of the run did not influence appreciably Ks calculations since it determined an increase in Ks by a mean factor never exceeding 1.1. The most frequent result of the developed procedure for estimating the α* parameter was failure of the experiment although the valid α* calculations were plausible, being higher for the coarse textured soil (17 m–1) than the finer soils (9.2-9.3 m–1). The depth of the wetting front at the end of the run was 1.1-1.2 times deeper than that calculated theoretically before the run, depending on the soil. In conclusion, the method used to determine D should not affect very much Ks determination but larger D values can yield smaller Ks values in fine-textured soils. Air escapes from the sampled soil volume when almost all water had infiltrated but this circumstance does not have a great impact on calculation of Ks. A falling-head one-dimensional ponded infiltration process is not recommended to estimate α*. The theoretical depth of the wetting front can approximately be predicted before the run. The SFH technique appears a rather robust method to simply and rapidly determine Ks.
Замыкания орбит тора общего положения во флаговых многообразиях Ботта
Authors: Lee Eunjeong , Suh Dong Youp
Published: October 2019

Показано, что замыкание орбиты тора общего положения во флаговом многообразии Ботта является неособым торическим многообразием, а также в явном виде описана структура соответствующего ему веера.
Универсальная формальная группа для эллиптического рода уровня $N$
Authors: Bunkova Elena Yurievna
Published: October 2019

Эллиптическая функция уровня $N$ задает эллиптический род уровня $N$ как род Хирцебруха. Известно, что эллиптическая функция уровня $N$ является специализацией функции Кричевера, задающей род Кричевера. Функция Кричевера является экспонентой универсальной формальной группы Бухштабера. В настоящей работе предложена специализация формальной группы Бухштабера, задающая формальные группы, соответствующие эллиптическому роду уровня $N$. А именно, эллиптическая функция уровня $N$ является экспонентой формальной группы вида $F(u,v) = (u^2 A(v) - v^2 A(u))/(u B(v) - v B(u))$, где $A(u),B(u)\in \mathbb C[[u]]$ - ряды с комплексными коэффициентами такие, что $A(0)=B(0)=1$, $A"(0)=B'(0)=0$ и при $m=[(N-2)/2]$ и $n=[(N-1)/2]$ существуют параметры $(a_1,…,a_m,b_1,…,b_n)$, для которых выполнено соотношение $\prod _{j=1}^{n-1}(B(u) + b_j u)^2\cdot (B(u) + b_n u)^{N-2n} =A(u)^2 \prod _{k=1}^{m-1}(A(u) + a_k u^2)^2 \cdot (A(u) + a_m u^2)^{N-1-2m}$. Для универсальной формальной группы такого вида экспонента является эллиптической функцией уровня не выше $N$. Это предложение является обобщением на случай $N>2$ известного результата, утверждающего, что эллиптическая функция уровня $2$, задающая эллиптический род Ошанина-Виттена, является экспонентой универсальной формальной группы вида $ F(u,v) =(u^2 - v^2)/(u B(v) - v B(u)) $, где $B(u)\in \mathbb C[[u]]$, $B(0)=1$, $B'(0)=0$. В настоящей работе это предложение доказано для $N=3,4,5,6$. Также доказано, что эллиптическая функция уровня $7$ является экспонентой формальной группы такого вида. В работе впервые получены универсальные формальные группы, соответствующие эллиптическому роду уровня $N=5,6,7$.
Элементарный подход к изучению последовательностей Сомоса
Authors: Ustinov Alexey Vladimirovich
Published: October 2019

Предлагается элементарный подход (не использующий теорию эллиптических функций) к доказательству основных свойств последовательности Сомос-4.
Присоединенная алгебра Ли прямоугольной группы Кокстера
Authors: Veryovkin Yakov Aleksandrovich
Published: October 2019

Исследованы нижний центральный ряд прямоугольный группы Кокстера $\mathrm {RC}_\mathcal K$ и соответствующая присоединенная градуированная алгебра Ли $L(\mathrm {RC}_\mathcal K)$. Изучена связь этой алгебры Ли с граф-алгеброй Ли $L_\mathcal K$. Дано явное комбинаторное описание первых трех последовательных факторов нижнего центрального ряда группы $\mathrm {RC}_\mathcal K$.
Три теоремы о единственности меры Планшереля c разных позиций
Authors: Vershik Anatolii Moiseevich
Published: October 2019

Приводятся три теоремы единственности: одна из теории мероморфных функций, другая из асимптотической комбинаторики, а третья относится к представлениям бесконечной симметрической группы. В первом случае речь идет о единственности функции $\exp z$ в некотором классе целых функций; во второй теореме говорится о единственности статистики случайной монотонной невырожденной нумерации двумерной решетки $\mathbb Z^2_+$, или о единственности невырожденной центральной меры на пространстве бесконечных таблиц Юнга; третья теорема утверждает единственность представления бесконечной симметрической группы $\mathfrak S_\mathbb N$, ограничения которого на конечные подгруппы имеют исчезающе малое число инвариантных векторов. Но все три теоремы представляют собой одну и ту же теорему с точностью до нетривиального пересказа условий одной математической области в терминах другой! До последнего времени математики, работающие в каждой из этих различных областей, были мало осведомлены об этой эквивалентности. Параллелизм этих теорем единственности с одной стороны и поразительное различие их доказательств с другой делают актуальными и более глубокий анализ природы этой единственности, и перенос метода доказательства из одной области в другую. Более точно, каждая из этих теорем по-своему утверждает замечательный факт единственности так называемой меры Планшереля - основного объекта настоящей работы. В работе также показано, что это понятие является общим для всех локально конечных групп.
Высшие произведения Уайтхеда для момент-угол-комплексов и подстановки симплициальных комплексов
Authors: Abramyan Semyon , Panov Taras Evgenievich
Published: October 2019

Изучается вопрос реализуемости итерированных высших произведений Уайтхеда с данной формой вложенных скобок симплициальными комплексами на основе конструкции момент-угол-комплекса $\mathcal Z_\mathcal K$. По определению симплициальный комплекс $\mathcal K$ реализует итерированное высшее произведение Уайтхеда $w$, если $w$ является нетривиальным элементом в гомотопической группе $\pi _*(\mathcal Z_\mathcal K)$. Комбинаторный подход к вопросу реализуемости использует операцию подстановки симплициальных комплексов: для любого итерированного высшего произведения $w$ описан симплициальный комплекс $\partial \Delta _w$, реализующий $w$. Более того, для специального вида вложенных скобок внутри $w$ доказано, что $\partial \Delta _w$ является наименьшим симплициальным комплексом, реализующим $w$. Также получен комбинаторный критерий нетривиальности произведения $w$. При доказательстве нетривиальности использованы представитель образа $w$ при гомоморфизме Гуревича в клеточных цепях момент-угол-комплекса $\mathcal Z_\mathcal K$ и описание умножения в когомологиях момент-угол-комплекса $\mathcal Z_\mathcal K$. Также использован алгебраический подход на основе коалгебраической версии комплексов Кошуля и Тейлор коалгебры граней симплициального комплекса $\mathcal K$ для описания канонических циклов, соответствующих итерированным высшим произведениям $w$. Тем самым получен другой критерий реализуемости произведения $w$.
Разностные операторы Кричевера-Новикова ранга 2
Authors: Mauleshova Gulnara Sainovna , Mironov Andrei Evgen'evich
Published: October 2019

Работа посвящена изучению одноточечных коммутирующих разностных операторов ранга $2$. В случае гиперэллиптических спектральных кривых получены уравнения, эквивалентные уравнениям Кричевера-Новикова для дискретной динамики параметров Тюрина. С помощью этих уравнений построены примеры операторов, отвечающих гиперэллиптическим спектральным кривым произвольного рода.
Трехмерные прямоугольные многогранники конечного объема в пространстве Лобачевского: комбинаторика и конструкции
Authors: Erokhovets Nikolai Yur'evich
Published: October 2019

Изучаются комбинаторные свойства многогранников, реализуемых в пространстве Лобачевского $\mathbb L^3$ в виде многогранников конечного объема с прямыми двугранными углами. На основе теоремы Е.М. Андреева показано, что срезка бесконечно удаленных вершин прямоугольных многогранников устанавливает взаимно однозначное соответствие с сильно циклически реберно четырехсвязными многогранниками, отличными от куба и пятиугольной призмы. Показано, что любой такой многогранник получается срезкой паросочетания многогранника из этого класса или куба не более чем с двумя срезанными несмежными перпендикулярными ребрами, так что каждый четырехугольник является результатом срезки ребра. Предложено уточнение конструкции Барнетта таких многогранников, и дано ее приложение к прямоугольным многогранникам. Уточнен метод построения идеальных прямоугольных многогранников при помощи операций скручивания ребер, и описана связь этого метода с конструкцией Барнетта при помощи совершенных паросочетаний. Высказана гипотеза об изменении объема многогранника при операциях, и приведены аргументы в ее поддержку.
Гладкие замыкания орбит тора в грассманианах
Authors: Noji Masashi , Ogiwara Kazuaki
Published: October 2019

Известно, что для естественного действия алгебраического тора на многообразиях Грассмана замыкания торических орбит нормальны и, следовательно, являются торическими многообразиями и что они гладкие тогда и только тогда, когда соответствующие матроидные многогранники просты. В работе доказано, что простые матроидные многогранники являются произведениями симплексов, а гладкие замыкания орбит тора в грассманианах - произведениями комплексных проективных пространств. Более того, оказывается, что гладкие замыкания орбит тора однозначно определяются соответствующими простыми матроидными многогранниками.
Плотность множества корней полинома Ямады пространственных графов
Authors: Li Miaowang , Lei Fengchun , Li Fengling , Vesnin Andrei Yurievich
Published: October 2019

Приводятся конструкция и обзор свойств полинома Ямады пространственных графов, и даются формулы полиномов Ямады для некоторых классов графов. Строится бесконечное семейство пространственных графов, для которых корни полиномов Ямады образуют плотное подмножество комплексной плоскости.
Labor Markets in Hard-Peg Accession Countries
Authors:   International Monetary Fund
Published: October 2019

In recent years, the IMF has released a growing number of reports and other documents covering economic and financial developments and trends in member countries. Each report, prepared by a staff team after discussions with government officials, is published at the option of the member country.
Costa Rica
Authors:   International Monetary Fund
Published: October 2019

In recent years, the IMF has released a growing number of reports and other documents covering economic and financial developments and trends in member countries. Each report, prepared by a staff team after discussions with government officials, is published at the option of the member country.
Cabo Verde
Authors:   International Monetary Fund. African Dept.
Published: October 2019

This 2016 Article IV Consultation highlights that the economic growth of Cabo Verde in 2015 stagnated at 1.5 percent, slightly below the 1.9 percent registered in 2014. Tourism recovered and remittances remained robust, but foreign direct investment (FDI) and public investment slowed. The unemployment rate declined to 12.4 percent, as did youth unemployment, which nevertheless remained high at 28.6 percent. Consumer price inflation remained muted owing to lower food and energy prices, averaging 0.1 percent for 2015. In 2016, growth is forecast to recover to 3.2 percent supported by FDI, domestic demand, agriculture, and tourism, which should benefit from the mild upswing in Europe.
Finland
Authors:   International Monetary Fund. European Dept.
Published: October 2019

This 2016 Article IV Consultation highlights that the growth in Finland has turned tepidly positive again following a deep recession. GDP increased by 0.2 percent in 2015 driven by stronger private consumption and a rebound in investment. Although net export growth was weak, falling oil prices contributed to the nominal trade balance shifting into surplus, reducing the current account deficit. Better-than-expected fiscal performance brought the deficit back under the 3 percent Stability and Growth Pact limit in 2015. The recovery is likely to continue, but growth is set to remain slow at about 0.9 percent in 2016 and 1.1 percent in 2017. This outlook is subject to downside risks.
Australia
Authors:   International Monetary Fund. Asia and Pacific Dept,   International Monetary Fund. Monetary and Capital Markets Department
Published: October 2019

In recent years, the IMF has released a growing number of reports and other documents covering economic and financial developments and trends in member countries. Each report, prepared by a staff team after discussions with government officials, is published at the option of the member country.
Access Policy in Capital Account Crises
Authors:   International Monetary Fund
Published: October 2019

The Fund’s decisions to lend to member countries in amounts well above the access limits for Mexico (1995), and since then, have raised important questions about the role of the Fund in crisis resolution and the appropriate size of Fund access in capital account crises. This paper reviews past experience in exceptional access cases and considers strengthened conditions, procedures and safeguards for guiding decisions on Fund programs in these exceptional circumstances where Fund financing above normal access limits may be appropriate.
Fifth Review of the Fund's Data Standards Initiatives
Authors:   International Monetary Fund
Published: October 2019

This paper reviews developments under the Fund's Data Standards Initiativ--the Special Data Dissemination Standard (SDDS) and the General Data Dissemination System (GDDS)--and their integration under the Data Quality Program. The paper discusses proposals for updating the SDDS and the GDDS to maintain their relevance and reflect evolving international best practice, and for follow-up on the data module of the Report on the Observance of Standards and Codes (ROSC). The paper also proposes the development of a Compendium on Good Statistical Practices.
Report of the Managing Director to the International Monetary and Financial Committee on the IMF's Policy Agenda-IMF Responses to Global Economic Challenges
Authors:   International Monetary Fund
Published: October 2019

The report provides an update on work in the following areas: global stability, IMF lending, food and fuel price developments, and modernizing the IMF.
The Fund's Response to the 2007-08 Financial Crisis - Stocktaking and Collaboration with the Financial Stability Forum
Authors:   International Monetary Fund
Published: October 2019

The present financial crisis is testing the resilience of the global financial system as well as the robustness of national and multilateral policy frameworks. As requested by Executive Directors, this paper reviews recent progress in meeting these challenges, focusing on the role of the Fund and its collaboration with the Financial Stability Forum (FSF). In concert with other international bodies, the Fund has sought to promote appropriate policy responses to the financial turmoil, including through its report on The Recent Financial Turmoil—Initial Assessment, Policy Lessons, and Implications for Fund Surveillance, in the Global Financial Stability Report (GFSR) and the World Economic Outlook (WEO), as well as in recent Article IV consultations and Financial Sector Assessment Programs (FSAPs). The Fund has also responded to the International Monetary and Financial Committee’s (IMFC) call for closer collaboration with other international fora, including by supporting the implementation of policy lessons from the crisis, such as the 67 FSF recommendations issued in April 2008.
Implementation of the Basel Core Principles for Effective Banking Supervision - Experience with Assessments and Implications for Future Work
Authors:   International Monetary Fund
Published: October 2019

This paper reviews the experience to date in assessing countries’ compliance with the Basel Core Principles for Effective Banking Supervision (BCP). This review is based on 136 assessments conducted under the FSAP/OFC programs, using the methodology associated with the 1997 version of the BCP. It follows earlier reviews presented to the Board in 2000, 2002, and 2004. The Fund has developed a strong collaborative relationship with the Basel Committee in promoting financial stability, in particular, in its work through the FSAP program in assessing (together with the Word Bank) the quality of countries’ supervisory structures. Experience gained from these assessments are also being reported back to the Committee through the Fund’s participation in Basel working groups, and staff has also been actively involved in the update of the BCP in 2006, with the objective of maintaining the BCP’s relevance as a global standard of good practice.