bluuebunny/crossref_metadata_2025 huggingface dataset:
Acidosis tubular renal tipo 1 como consecuencia de síndrome de Sjögren. Reporte de caso clínico
Authors: Macías Argüello Christian Adrian , Orellana Orellana Carlos Andrés
Published: February 2021

Introducción: el Síndrome de Sjögren (SS) es una alteración sistémica autoinmune inflamatoria crónica que compromete principalmente la función de las glándulas exócrinas; se caracteriza por la disminución de la función de las glándulas salivales y lagrimales. Puede haber afección renal y progresar a Acidosis Tubular Renal (ATR), pero pocos casos llegan a insuficiencia renal terminal. Objetivo: presentar el caso de una paciente con síntomas inespecíficos, en que la sospecha clínica de una ATR secundaria a un proceso sistémico hizo llegar al diagnóstico de SS. Presentación de caso: paciente femenina de 40 años que debuta con parestesias en todas las extremidades acompañadas de cefalea holocraneana, se le diagnostica desequilibrio hidroelectrolítico; es hospitalizada por disminución del nivel del sensorio, evoluciona favorablemente y es dada de alta. Un año después recae, con la misma sintomatología, más debilidad muscular en extremidades y poliartralgias. Posteriormente presenta cuadro de acidosis metabólica hiperclorémica. Se realiza interconsulta al servicio de nefrología donde se sospecha como diagnóstico presuntivo ATR tipo I. Estudios del perfil inmunológico más una prueba de Schirmer positiva llevan a la posible ATR tipo 1 secundaria al SS que fue confirmada posteriormente. Discusión: no es común poder estudiar esta evolución ya que la mayoría de pacientes evolucionan con otras complicaciones. En el caso de ATR secundaria, es importante determinar el diagnóstico de la enfermedad sistémica que la origina.2 Es importante mencionar que las pérdidas intestinales mediante diarrea o fístulas, disminuyen los niveles sistémicos de bicarbonato, por lo tanto, para un correcto diagnóstico es preciso que no se encuentren dentro de los síntomas del paciente o descartarlos como causa del desequilibrio. Conclusión: en el SS existe un 30% de compromiso extraglandular lo que encasilla como frecuente este tipo de manifestaciones, aunque el compromiso renal que lleva a insuficiencia renal terminal no lo es. Es de desear que se sigan realizando controles de las funciones de órganos  extraglandulares en todos los pacientes que padezcan del SS.
Offering nicotine patches to all households in a community with high smoking rates: Pilot test of a population-based approach to promote tobacco cessation
Authors: Cunningham John A , Leatherdale Scott T , Chaiton Michael , Tyndale Rachel , Schell Christina , Godinho Alexandra
Published: February 2021

BackgroundThe objective of this project is to determine the effectiveness of targeting a community with a high smoking rate with the distribution of free-of-charge nicotine patches in order to promote tobacco cessation.
Methods/DesignOne small community with an elevated smoking rate (compared to national and provincial averages) has been identified. All households in the community will be sent a letter offering one smoker (18 years or older; 10 or more cigarettes per day) in the household a free-of-charge mailed five-week supply of nicotine patches (up to a total of 800 five-week kits will be available for distribution). Participants receiving nicotine patches will be asked to complete a six-month follow-up survey assessing tobacco cessation defined as 30-day point prevalence abstinence. In addition, attempts will be made to employ ongoing national population surveys containing cigarette smoking variables to compare changes in smoking prevalence in the target community to other communities with similar characteristics.
DiscussionWe will examine whether the concentrated distribution of mailed nicotine patches will result in a measurable reduction in smoking rates in the target community. If demonstrated, this would provide support for the targeted population-level distribution of an effective individual-level public health intervention.
Clinical Trials registrationNCT04534231
Some principles of normalization of multi-level design of structures with specified parameters of limit states
Authors:   Emperor Alexander I St. Petersburg State Transport University, Nazarova Sh. Sh.
Published: February 2021

The article presents a method for calculating the seismic resistance at multi-level design of structures, in which as a result a scenario of damage accumulation in the structure from earthquakes is created. The level of calculated impact for various limit states is set for various limit states and the criteria for transitions to limit states are described. The limit states of structures are considered at calculating for the impact of design earthquakes (DE) on the structure performance. Criteria for limiting plastic deformations, energy intensity, and damage are considered for maximum calculated earthquake (MCE).To assess the damage rate, the use of damage spectra of the structure is proposed. A variant of using the linear-spectral method (LSM) for estimating the seismic stability of structures at different limit states is presented.
Buckling of cylindrical panels strengthened with an orthogonal grid of stiffeners
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Semenov A. A. , Moskalenko L. P. ,   Saint Petersburg State University of Architecture and Civil Engineering, Karpov V. V. ,   Saint Petersburg State University of Architecture and Civil Engineering, Sukhoterin M. V. ,   Admiral Makarov State University of Maritime and Inland Shipping
Published: February 2021

The paper presents a mathematical model of deformation of thin-walled cylindrical shell panels, taking into account transverse shears, geometric nonlinearity, and the presence of ribbed stiffeners. Dimensionless parameters are used. The computational algorithm is based on using the Ritz method and the method of continuation of the solution with respect to the best parameter. There are shown the values of critical buckling loads for several variants of structures, depending on the chosen method of taking into account the reinforcement and the number of stiffeners.
National romanticism of the early XX century in the two higher schools of architecture in Saint Petersburg
Authors:   Repin Academic Institute of Painting, Sculpture and Architecture, St. Petersburg State Academy of Arts St. Petersburg, Lisovskiy V. G. , Pukharenko Yu. V. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: February 2021

The article regards one of the aspects of the large theme associated with the study of romanticism in the Russian architecture of the end of the XIX - early XX centuries. The authors focus on the «national» branch of the romanticism trend in architecture embodied in two versions known as «Neo-Russian style» and «Northern Art-Nouveaux». As a result of study of some relevant publications and archive materials, it has been figured out to what extent these versions were used in the architectural study practice at the Academy of Fine Arts and at the Institute of Civil Engineers. It is shown, that at the Institute of Civil Engineers the «Northern Art-Nouveaux» aroused an enthusiastic interest, and at the Academy of Fine Arts the «Neo-Russian style» was regarded as more preferable for study. Some brief information regarding the methods typical for these two different versions of the «national» trend in the independent creative practice of the graduates of both schools is provided.
Moisture deformation of concrete subjected to alkaline corrosion. Experimental results
Authors:   National Research Moscow State University of Civil Engineering Moscow, Russia, Grishina A. N. , Korolev E. V. ,   Saint Petersburg State University of Architecture and Civil Engineering, Mikheev A. V. ,   LLC “Transstroymekhanizaciya”, Gladkikh V. A. ,   National Research Moscow State University of Civil Engineering
Published: February 2021

The authors present the results of the study of concrete core samples extracted from the concrete coating of the airfield that was exposed to alkaline corrosion. It is shown that by the nature of the volumetric deformation kinetics, concrete samples can be classified into three groups: samples mainly subjected to swelling; samples mainly subjected to shrinkage; samples that have a marked technogenic metasomatosis. The experimetal investigation results have confirmed the theoretical conclusions drawn on the base of the technogenic metasomatosis model. There have been revealed the facts of latent technogenic metasomatosis, confirming its prevalence in concrete products. The study of volumetric deformation of samples during their exposure to various media provides additional information for assessing the material`s durability: the ascertained deformation of the samples is the evidence of the exchange processes that will reduce the operation properties of the material with an intensity increasing over time.
Obtaining of heat-insulating materials based on silica-containing waste with the addition of dolomite
Authors:   Tananaev Institute of Chemistry - Subdivision of the Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences” Science Centre of Russian Academy of Sciences, Manakova N. K. , Suvorova O. V. ,   Tananaev Institute of Chemistry - Subdivision of the Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences” Science Centre of Russian Academy of Sciences
Published: February 2021

The paper presents the results of the study of feasibility of obtaining high-quality foamed thermal insulation materials based on a silicate matrix with addition of dolomite. It has been found out that the preliminary activation of a suspension based on a silica-containing component at a temperature of 90°C for 5-7 minutes allows accelerating the coagulation of silica fume and the synthesis of sodium silicates. Optimal foaming conditions for the charge frothing are 650-700°C for 25 minutes. There have been obtained foam silicates with a relatively uniform finely porous structure and stable physical and technical properties with density 0.38-0.48 g/cm³, strength up to 3 MPa, thermal conductivity 0.048-0.054 W/(m·K).
The analytical assessment of heat calculation methods of DKVr-10-13 liquid fueled steam boilers
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Yakovlev V. A. , Gilev I. Yu. ,   Saint Petersburg State University of Architecture and Civil Engineering, Yurchenko V. N. ,   Saint Petersburg State University of Architecture and Civil Engineering, Kocheva M. A. ,   Nizhny Novgorod State University of Architecture and Civil Engineering
Published: February 2021

The article presents an analytical assessment of the methodology of the last two editions for boiler units` heat calculation developed by two Russian scientific research institutes - All-Russia Thermal Engineering Institute (VTI) and I. I. Polzunov Scientific and Development Association on Research and Design of Power Equipment (TsKTI). The methods` comparison analysis was carried out using the author’s calculation programs, compiled according to the last two editions, and the results collating was carried out based on the maps of operational tests of the DKVr-10-13 steam boiler installed in the heating and industrial boiler house in St. Petersburg. The main balance values and specific performance indicators of the DKVr-10-13 boiler unit were subjected to comparative analysis, the dependencies of which are presented and analyzed in the article.
The influence of traffic management at a regulated intersection on the uniformity of traffic capacity
Authors:   Tyumen industrial university, Andronov R. V. , Leverents E. Eh. ,   Tyumen industrial university, Genze D. A. ,   Tyumen industrial university, Legostaeva E. N. ,   Tyumen industrial university
Published: February 2021

The paper deals with the issue of uniformity indicator of the traffic capacity at the regulated intersections from the standpoint of the traffic management, emphasizing the importance of accounting the value of uniformity, in addition to the value on the traffic performance. The schemes of traffic management are provided, where the interferences, due to turning vehicles and the movement of pedestrians in one phase, reduce the uniformity of the traffic capacity. This reduces the efficiency of traffic light regulation and increases the queue length and overall vehicle delays. The conclusions of the study are confirmed by carrying out a multiple-factor testing with the search for statistically significant coefficients.
Policy regarding the use of web-technologiesin the field of urban planning in the largest cities of Russia
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Vilenskii M. Yu.
Published: February 2021

The emergence of web technologies has created new conditions for improving the urban planning activities of municipal authorities in cities. The study focuses on the current state of the web-based urban management policies adopted in major Russian cities based on an analysis of 50 cities. It includes recommended measures that cities should take to improve and develop their technology assets. These are the websites of city governing bodies who are responsible for urban policy issues and geo information system (GIS) websites. The study addresses two questions, namely, how effectively cities are using web technologies in the area of urban management policy, and how governments and society communicate in the digital space. There is proposed a methodology for assessing the web resources of municipalities.
Potential development directions of methods for assessing and evaluating the efficient performance of construction organizations
Authors:   Emperor Alexander I St. Petersburg State Transport University, Chepachenko N. V. , Yudenko M. N. ,   St. Petersburg State University of Economics, Nikolikhina S. A. ,   Emperor Alexander I St. Petersburg State Transport University, Polovnikova N. A. ,   Emperor Alexander I St. Petersburg State Transport University
Published: February 2021

The article presents the study results of potential directions for the development of methods for assessing and evaluating the efficient performance of construction organizations that increase the objectivity of assessing and evaluating the results of activities in the field of production and sale of construction products (works, services) and the quality of management decisions. The authors propose systematization of the applied and recommended methods of assessing and evaluating the economic efficiency of construction organizations. Herewith, several methods are considered, namely: the integrated cost method based on a comprehensive accounting of the totality of production, management, commercial and transaction costs; the integrated resource method that implements the concept of accounting for the applied totality of labor, material, technical and financial resources; the resource-integral method based on the symbiosis of resource and cost methods; the optimization method reflecting the concept of a criterion approach; the polystructural method, reflecting the concept of measuring and assessing economic efficiency based on the assessment of the growth potential of construction organizations, due to the influence of factors of intensification of production; the index method based on the concept of following the «golden rule of enterprise economics». A potential methodological approach to assessing alternative types of efficiency (socio-economic, socio-ecological, ecological-economic, ecological-socio-economic ones) in the Descartes spatial coordinate system is proposed.
Main factors affecting the formation of the typology of innovative purpose complexes
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Savina I. I. , Perov F. V. ,   Saint Petersburg State University of Architecture and Civil Engineering, Bolotin S. A. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: February 2021

To create modern types of innovative purpose complexes, it is necessary to take into account a number of factors, which are vital for the formation of an innovation system and which determine the requirements for both the entire system and its individual elements. The article presents a substantiation of the relevance of St. Petersburg innovation development. The concept of innovation activities in terms of infrastructure development is defined, and an overview of the factors and their features in relation to St. Petersburg is given.
On the issue of regulating the stress-strain state of structures taking into account progressive collapse
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Moskalev M. B. , Goriunov M. V. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: February 2021

The control of the stress-strain state of the structure using regulators allows creating unique structures that quickly respond to changes in the external environment, and, therefore, can be effectively used in all areas of construction. Due to the advancement of automation and information fast transmission means, these structures are going to become more and more relevant. The authors have analyzed the criteria for setting the regulators based on the arising forces in the truss rods, the removal of load in the given truss from the action of the regulators has been calculated, and disadvantages have been identified. The results obtained can be applied in the design of controlled structures to protect against avalanche collapse and ensure a proper stabilization of deformation and forces in trusses.
Experimental investigation of stress-strain properties of steel fiber reinforced concrete of the higher classes
Authors:   Saint Petersburg State University of Architecture and Civil Engineering, Khegai A. O. , Kirilin N. M. ,   Saint Petersburg State University of Architecture and Civil Engineering, Khegai T. S. ,   Saint Petersburg State University of Architecture and Civil Engineering, Khegai O. N. ,   Katanov Khakass State University
Published: February 2021

The tangent modulus of elasticity and deformation modulus are the most important characteristics of steel fiber reinforced concrete. The tangent modulus of elasticity corresponds to the initial loading stage, whereas in the operation stage and the fracture stage, there is a modulus of the material deformation, which is smaller, due to the formation of cracks in the element and non-linear behavior of the material. The paper presents experimental investigations of the tangent modulus of elasticity and the deformation modulus of fiber-reinforced concrete, class В60 at various percentages of fiber reinforcement. Existing approaches to determination of the tangent modulus of elasticity are considered. The results obtained are compared with those presented by other researchers. Analytical dependence is proposed for determination of deformation modulus depending on the percentage of fiber reinforcement.
Periklanan Dalam Perspektif Etika Islam
Authors: Mustafa Mustafa
Published: February 2021

Advertising is the main element of a company's promotion tool. Most companies spend a lot of money on advertising around 25% of the total budget. Advertising is very important to increase an organization's revenue. But recently, some advertisements made false promises to attract new customers to buy products that are strictly prohibited in Islam. In this paper, we try to establish several dimensions of advertising supported by Islam. There should be no practice of fraud, fraud, misrepresentation, coercion, and injustice in measurement; and there shouldn't be anything unfair. In this article the author tries to find out the Islamic point of view of advertising where the public will find advertisements working as they should
The Effect of Theory of Planned Behavior and Environmental Concern on The Selection of Merries Brand Baby Diapers
Authors: Febrianti Lidia , Permana Dudi
Published: February 2021

This study analyzes the effect of theory of planned behavior and environmental concern to purchase intentions of diapers “Merries”. The population of this study is mothers who have children that uses diapers and located in DKI Jakarta, with a total sample of 105 respondents. The data analysis method uses Structural Equation Model-Partial Least Square (SEM-PLS). The result of this study indicate is attitude, subjective norm, perceived of behavioral control and environmental concern affect positively but only perceived of behavioral control significantly affect towards purchase intentions.
Correlation Between Ultrasonic Testicular Volume and Seminal Fluid Analysis in Men with Infertility
Authors: Abu Sadiq , Kolade-Yunusa Hadijat O. , Atim Terkaa , Obakeye F. Ehimatie , Dakum Nuhu K.
Published: February 2021

Background: Infertility is a major cause of marital disharmony in Nigeria because of the high premium placed on childbearing. Unfortunately, the blame is on the woman most times in Nigeria. Seminiferous tubules comprise 80-90% of testicular mass. Thus, the testicular volume is an index of spermatogenesis. Therefore, accurate testicular volume will help in assessing testicular function if there is no obstruction. This study was conducted to evaluate the correlation between testicular volume, measured by ultrasound and conventional sperm parameters (semen volume, sperm concentration, sperm motility and sperm morphology) in men with infertility presenting to Urology Division, University of Abuja Teaching Hospital, Gwagwalada Abuja.

Methodology: This was a descriptive cross sectional study, male subjects with infertility presenting to University of Abuja Teaching Hospital were recruited into the study. The testicular volume of all the subjects was measured by ultrasonography. The semen samples were collected by the process of masturbation on day five of sexual abstinence and analyzed according to WHO criteria 2010. Collated data were analyzed using SPSS version 20.0. P-value<0.05 was taken as statistically significant.

Results: The average total testicular volume (TTV) of men with infertility was 19.83 ml while mean testicular volume (MTV) was 10.24 ml. There was a statistically significant difference between MTV and semen volume (r=0.391, p=0.000), and sperm concentration (r=0.639, p=0.000). There was a weak and insignificant correlation between MTV and sperm motility and MTV and morphology (r=0.216, p=0.055 and r=0.076, p=0.502) respectively. Linear regression analysis showed significant impact of MTV (P<0.001) on sperm concentration with a critical MTV of ≤10ml.0 indicating poor testicular function (severe oligospermia)

Conclusion: The mean ultrasonic testicular volume in men with infertility in this study was 10.24ml and there was a significant positive correlation of MTV with semen volume and sperm concentration. Although, there was correlation of MTV with sperm motility and morphology, this was not significant. The critical mean ultrasonic testicular volume indicating poor testicular function (severe oligospermia) was found to be 10ml. This study has shown that the mean ultrasonic testicular volume can be a pointer to semen volume and sperm concentration in evaluating men with infertility.
Prevalence of Obesity and Impact of Menopause on It among Women of Rural Area of Punjab, Pakistan
Authors: Bibi Somia , Khan Tayyab Mumtaz , Zafar Waqas Mehmood , Umer Muhmmad Junaid , Iqbal Umama Fatima , Maqsood Muhmmad Awais , Khan Shahrukh , Khalil Shafaq , Mumtaz Madeeha
Published: February 2021

Obesity is one of the major health public problems and it not only leads to serious and chronic diseases but also causes poor mental health. Although it is affected by number of factors including food, gender, socioeconomic status, and genetics but menopause is important in postmenopausal women. Therefore, this study was set to assess the prevalence of obesity and impact of menopause on it among women. This cross-sectional descriptive study was completed in about 3 months from August 2020 to October 2020 in a rural area of Punjab, Pakistan. 189 women were enrolled in our study according to agreed criteria of exclusion and inclusion. Women whose age was above 28 years and up to 58 years and who either had regular menstrual cycles or had cessation of menses from at least one last year were selected for study while women who either had irregular menstrual cycles or who were not willing to participate were excluded from study. Collection of data was accomplished via one self-structured proforma and WHO Classification of Weight Status which is based on BMI was also applied. Data analysis was carried out by using SPSS version 25. Multiple statistical tests including Chi-square test, Independent Sample t-test, and One-Way ANOVA test were used to assess the study variables. Overall, our current study shows high prevalence (29.6%) of obesity among women, however, mean of BMI value was higher among postmenopausal women (27.53 SD of ±4.28) in comparison with premenopausal women (25.44 with SD of ±4.05) which means that postmenopausal women had higher risk of development of Obesity in comparison with premenopausal women. The association between obesity and menopause was statistically significant (p=0.0001). The difference of BMI mean value between premenopausal women and postmenopausal women was significant statistically (p=0.001). Significance difference was also noted in BMI mean value of across four grades of weight status (p=0.000). In a nutshell, overall prevalence of obesity is high among women and its even higher among postmenopausal women in comparison to premenopausal women which means menopause increases the obesity among women after menopause but process of development is so far vague.
Risk of SARS-CoV-2 Transmission from Humans to Pets and Vice Versa
Authors: Shervani Zameer , Khan Intazam , Siddiqui Noha Yamin , Khan Tooba , Qazi Umair Yaqub
Published: February 2021

Numerous studies have described human-to-human airborne and contact-based transmissions of SARS-CoV-2, the epidemiological agent of coronavirus disease 2019 (COVID-19). In this review article, we assess the COVID-19 reverse-zoonotic transmission from humans-to-household pets and zoonotic transmission from pets-to-humans, and animal-to-animal transmission between cohoused pets including cats, dogs, and ferrets. COVID-19 in mink, ducks, pigs, chickens, and ectoparasite of domestic pets such as cat flea are also discussed. Cats and ferrets were found highly susceptible to SARS-COV-2; dogs susceptible to a lower degree; and chickens, pigs, and ducks not susceptible. Reverse zoonotic SARS-COV-2 transmission in dogs and cats was found as confirmed by genetic analysis of virus strains isolated from pets and pet owners. Most studies show absence of clinical symptoms in infected dogs and cats. There is no evidence of zoonotic transmission of SARS-COV-2 from pets, although the possibility could not be ruled out. COVID-19 in mink farms showed both human-to-mink and subsequent mink-to-human (zoonotic) transmission raising concerns about mink becoming possible unexpected intermediate hosts of SARS-COV-2. Preventative and control measures limiting zoonotic and reverse zoonotic COVID-19 transmissions should be developed and enforced publicly to minimize virus spread. Our article is important for animal and pet management in COVID-19 pandemic. As there is no evidence of SARS-CoV-2 transmission from household pets to humans, the pets must not be abandoned. To avoid virus transmission from infected households and pet-to-pet, the pets must be quarantined and isolated similar to humans. Leaving pets roaming in the community will increase the chances of virus spread. The original source of the virus is still unknown therefore, pets and animal management is necessary to stop the current and future pandemic.
Direct Visual Internal Urethrotomy in Supine Position in a Patient with Complex Deformities of Both Lower Limbs and Neurogenic Bladder: A Case Report
Authors: Eze Balantine U. , Chacha Frank K. , Mbaeri Timothy U.
Published: February 2021

Direct visual internal urethrotomy (DVIU) is a minimally invasive treatment for urethral stricture and is usually done in lithotomy position. We presented a case of a 35-year-old man with complex deformities of both lower limbs from birth. The lower limbs were severely wasted with ankylosis of the hips, flexion of the knee joints and dorsiflexion at the ankle joints. He had a history of progressively worsening difficult in urination characterized by frequency, urgency, urgency incontinence, nocturia, poor urinary stream (improved by straining), intermittency and feeling of incomplete bladder emptying. He had occasional dysuria and total hematuria. He was not a known hypertensive or diabetic patient. No history of trauma, previous urethral instrumentation, and no history of purulent urethral discharge before the onset of problems. On presentation, his abdomen was full with slight suprapubic distention. The anal sphincter was spastic and the prostate was not enlarged. He had normal non-circumcised male external genitalia. There was no spinal deformity and the upper limbs were normal. White cell count was 14,000 cells/ mm3 with a differential neutrophil of 85.5% and urine culture showed moderate growth of coliforms. Abdominopelvic ultrasound showed a thickened bladder wall with mild hydronephrosis bilaterally and a retrograde urethrography and micturating cystourethrography showed 3 short segment bulbar urethral strictures. There was also a Christmas tree appearance of the bladder. A diagnosis of bladder outlet obstruction secondary to multiple short segment idiopathic bulbar urethral strictures on background neurogenic bladder was made. He had intravenous antibiotics for 48 hours and subsequently a DVIU under spinal anesthesia and in the supine position. Catheter was removed on the 7th day post procedure and he started clean intermittent catheterization (CIC) with 12 French catheters. Seven months post procedure, patient is still satisfied with the outcome of his treatment. We concluded that DVIU can be done safely in the supine position and CIC can help improve post procedure outcome and in managing comorbid neurogenic bladder.
The Need for Three Separate Parallel WAD Ratings of Whiplash Injuries to Cervical, Lumbosacral, and Thoracic Spine in Clinical Assessments of Injured Motorists
Authors: Cernovsky Zack Z. , Mann Stephan C. , Velamoor Varadaraj R. , Oyewumi L. Kola
Published: February 2021

Background: The prevailing classification of whiplash associated disorder (WAD) focuses solely on neck injuries, thus implying that injuries to other spinal regions are relatively inconsequential. In fact, some whiplash studies exclude patients with injuries to lower spine. We examined whiplash pain locations of injured motorists and their statistical correlates. Method: De-identified archival data of 158 injured motorists (57 men and 101 women; mean age 39.4 years, SD=12.5) were reviewed statistically. Their motor vehicle accidents (MVAs) occurred 7 to 194 weeks previously (mean=50.7 weeks, SD=38.5), but all still experienced active whiplash symptoms requiring therapy. Results: The most frequently reported locations of whiplash pain were the head (89.9%), neck (88.6%), shoulders (80.4%), and lower back (77.8%). WAD studies that exclude patients with lower back pain might exclude about 82.9% of injured motorists: the remaining 17.1% of patients with whiplash injury only to the neck are presumably those less adversely affected by the MVA than patients with pain in multiple locations. No correlations of high or moderate magnitude were detected among the various pain locations. Furthermore, no high or moderate correlations were observed between clinical variables (including 2 neuropsychological symptoms scales) and reports of headache or pain in the neck or in lower back. Discussion and Conclusions: The prevailing WAD classification system needs to be renamed as specific to neck injury only: WAD-C. Parallel WAD classification systems need to be introduced separately for the lumbosacral spine (as WAD-LS) as well as the thoracic spine (as WAD-T) to improve diagnostic descriptive precision of clinical WAD assessments and of their research applications.
IMPLEMENTASI PROGRAM ePPM-UKM UNTUK PENGUATAN KINERJA MANAJEMEN UKM DAN INDUSTRI KREATIF
Authors: Wahyudiono Wahyudiono , Baktiono R. Agus
Published: February 2021

This study aims to examine the effect of the ePPM-SMEs implementation to the value of management capability and management performance. Furthermore, this study examines the effect of management capability towards management performance as well. This study is an explanative/ associative study which is used hypothesis testing. The study was conducted in groups of SMEs/ creative industries spread over five cities / regions in East Java. The population is determined by the criteria of SMEs/creative industry which participate in the ePPM-SMEs program as owner and being active in business for at least five years. Based on these criteria, there are 60 SMEs / creative industries who meet the criteria. Since all members of the population are members of the sample as well so this study is also called as complete enumeration method.The results of path analysis show that the ePPM-SMEs program directly and significantly affects the management capability and management performances as well as management capability towards management performances. The results of this study indicate that the structured implementation of ePPM-SMEs program produced more creative and innovative of management capability. In addition, innovative management capabilities will result to the more effective and efficient management performance. Since management capability is the main key to determine good management performance, massive support for ePPM-SMEs program will encourage creative and innovative behavior in applying management concepts and functions.
Analisis Proses Berpikir Siswa dalam Memecahkan Masalah Matematika berdasarkan Langkah-Langkah Bransford dan Stein ditinjau dari Adversity Quotient
Authors: Yanti Avissa Purnama , Syazali Muhamad
Published: February 2021

This study aims to describe the thinking process of students of MAN I Bandar Lampung based on Adversity Quotient (AQ) type climbers, campers and quitters in solving mathematical problems based on Bransford and Stein theories on equations and quadratic functions. This research is a qualitative descriptive research. Research subjects were determined through purposive sampling, and this research was conducted in class X MIA 4 MAN I Bandar Lampung with subject of 6 students divided into 3 groups. The first group consisted of 2 students of type climbers, the second group consisted of 2 students of campers, and the third group consisted of 2 students of type quitters. To determine the type of Adversity Quotient (AQ) of the subject to be selected, the ARP test is used. The data collection technique in this study uses the test method, unstructured interview method conducted on selected subjects and documentation method. Data analysis techniques through data reduction, data presentation, and conclusions. Written test result data is analyzed based on indicators that meet conceptual, semiconceptual, and computational thinking processes. The technique of data validity is done by using triangulation technique comparing data of test result and interview result to subject of climbers, campers and quitters. Based on the data analysis results obtained that the subject with the type Adversity Quotient (AQ) each has a different thinking process. Subjects with type climbers tend to have a conceptual thinking process in solving mathematical problems based on Bransford and Stein theories. Subjects with type campers tend to have a semiconceptual thinking process in solving mathematical problems based on Bransford and Stein theories, and subjects with type quitters in solving problems based on Bransford and Stein theories tend to have a computational thinking process.
Pengaruh Gaya Belajar Terhadap Prestasi Belajar Mahasiswa Program Studi Pendidikan Matematika (IAIM NU) Metro
Authors: Widyawati Santi
Published: February 2021

Learning style is one of the factors that allegedly affect the learning achievement (GPA) of Mathematics Education Mathematics Program of Maarif Nahdatul Ulama Institute of Islamic Studies. The purpose of this research is to know "whether there is influence of learning style type (Visual, Auditorial, and kinestetik) to student learning achievement of Mathematics Education Program of Maarif Nahdatul Ulama Islamic Institute of Mathematics”. The type of this research is comparative causal research with 3 × 1 research design. The population in this research is all students of semester IV of Mathematics Education program of Maarif Islamic Institute Nahdatul Ulama Metro academic year 2015/2016. The sample in this study was obtained by using class random technique. The sample in this study consists of 22 students with details of 10 students who have visual learning style, 4 students who have auditorial learning style, and 8 students who have kinesthetic learning style. Instruments used to collect data are questionnaire learning style and transcript of student grades semester IV of Mathematics Education Mathematics course Maarif Nahdatul Ulama Institute of Islamic Studies. Hypothesis testing in this study used a one way variance analysis with unequal cells.The result of this research is the influence of learning style to learning achievement (GPA) of Mathematics Education Mathematics Program of Maarif Nahdatul Ulama Institute of Islamic Studies. Furthermore, after further test using Scheefe 'method, it was found that students with visual learning styles had the same learning achievement with students with auditorial learning style, while both types of learning styles had better learning achievement compared with students with kinesthetic learning style.
Komunikasi Matematis Siswa Tunarungu dalam Pembelajaran Matematika didasarkan pada Teori Schoenfeld
Authors: Mujib Mujib
Published: February 2021

This research was conducted at SMALB Dharma Wanita Pertiwi Bandar Lampung. The subjects of this study were 2 students of hearing impaired class XI. Data analysis techniques are performed by: (1) grouping data into 4 categories: (a) analyzing and understanding problems (b) designing and planning solutions (c) exploring solutions to difficult problems (d) verifying solutions, then reducing data that is not Including in the four categories, (2) present data in the form of narrative text, and (3) summarize the students' deaf mathematical communication. The results of this study indicate that (1) In the stage of analyzing and understanding the problem, students receive direct information received from the problem and convert it into the form of images. (2) At the stage of designing and planning solutions, students look at the problem information to solve the problem so that in their thinking is a global idea of the problem. (3) At the stage of exploring solutions to difficult problems, students work on problems using formulas and methods that are designed and planned in advance. (4) In the stage of verifying the solution, the student simply checks the formula that has been written and checks the answer.
Modifikasi Model Pembelajaran Gerlach dan Ely Melalui Integrasi Nilai-Nilai Keislaman Sebagai Upaya Meningkatkan Kemampuan Representasi Matematis
Authors: Yusnita Irda , Maskur Ruhban , Suherman Suherman
Published: February 2021

This study aims to determine whether the modification of learning models Gerlach and Ely through the integration of Islamic values can improve the ability of mathematical representation of learners. This research uses Pre-Experimental Design method with one-group pretest-posttest type. The prerequisite analysis test was performed by Liliefors test for normality and F test for homogeneity, then the data were analyzed by using N-Gain test and correlated t-test. The results of the analysis show that the mathematical representation of learners increases after using modified Gerlach and Ely learning models that are integrated with Islamic values rather than the mathematical representation of learners before using modified Gerlach and Ely learning models through the integration of Islamic values.
Analisis Kesulitan Mahasiswa dalam Memahami Materi Integral Lipat Dua pada Koordinat Polar Mata Kuliah Kalkulus Lanjut
Authors: Apriandi Davi , Krisdiana Ika
Published: February 2021

This study aims to determine the difficulties experienced by students in understanding the double integral in polar coordinates advanced calculus courses and the factors that cause these problems. This research is qualitative. Subjects were students of the fourth semester of academic year 2015/2016 Mathematics Education, IKIP  PGRI Madiun totaling 3 persons. Data collection techniques have used that test, observation, interviews, and documentation. Data analysis technique conducted with qualitative data analysis, namely data reduction, data presentation and conclusion. The results were obtained five kinds of difficulties students in understanding the integral double the coordinates polar, namely 1) the difficulty in drawing a function in polar coordinates and determine the areas of integration, 2) the difficulty in converting the variable into polar coordinates, 3) difficulty in defining the limits of integration, 4) difficulty in writing a form of integration in polar coordinates, 5) difficulties in performing the calculations. Factors causing these difficulties is the ability to understand the matter is low, understanding in drawing a function in two-dimensional and three are still low, difficulties in visualizing the image of a function, do not understand the concept of comparison trigonometry, do not understand in determining the limits of integration in polar coordinates, less rigorous in setting limits of integration, not yet understand the concept of double integral in polar coordinates, lower integration calculation capabilities, yet integral mastered trigonometry.
Pengembangan Media Pembelajaran (Modul) berbantuan Geogebra Pokok Bahasan Turunan
Authors: Sari Fiska Komala , Farida Farida , Syazali Muhamad
Published: February 2021

This paper is based on the lack of learning media used by educators in teaching and learning process and low interest and motivation of learners. The formulation of the problem in this paper is 1) How the development of learning media (module) assisted Geogebra subject derived?. This paper aims to create an interesting learning process using learning media (module) assisted Geogebra subject derived. The research method used in this paper is a research and development (R D) with the steps used based on Sugiono (2012). Stages are limited to seven stages: 1) Potentials and problems, 2) Data collection, 3) Product design, 4) Design validation, 5) Design improvements, 6) Product trials, 7) Product revisions, due to time constraints, Sugiono's research steps are not implemented. Data collection techniques were performed using a questionnaire with a five-point response format from the Likert scale. The attractiveness of instructional media is based on a one-on-one test conducted on 6 students, one small group trial conducted on 12 students, and field trials conducted on 60 students. Data analysis was done by using qualitative and quantitative descriptive analysis technique. Based on the test of material experts, media experts and linguists, the scores obtained respectively (4.08), (4.53), and (4.27), the developed learning media (modules) developed by GeoGebra were assessed for categories Interesting and worthy of being used as a medium of learning for high school class XI on the subject of derivative.
Pembelajaran Learning Cycle 5E berbantuan Geogebra terhadap Kemampuan Pemahaman Konsep Matematis
Authors: Pratiwi Dona Dinda
Published: February 2021

The purpose this research is to know whether there is the influence of Learning Cycle 5E model with the GeoGebra aid to understanding mathematical concepts. The type of this research is quasi-experimental research, population in this research is all students of class VII MTsN 2 Bandar Lampung as many as 10 classes with an amount of 320, sampling technique in this research using a classroom random technique where class VIIA as experiment class with Learning Cycle is learning 5E aided GeoGebra, class VIIJ as a control class with expository learning. Data analysis technique use N-Gain test and t test. Based on the result of N-Gain value analysis, the understanding of mathematical concepts in the experimental class with the use of GeoGebra application is in the medium category, that is in the experimental class there are 18 students and in the control class, there are 16 students. While the average value of N-Gain in the experimental class is 0.686 and the mean value of N-Gain in the controller class is 0.354. Based on calculations obtained t count = 6,180, so titan table, in other words, reject H0 and received H1. The conclusion that can be drawn is that there is an increase in the ability of understanding the mathematical concepts of learners in the Learning Cycle 5E class with GeoGebra in the learning process, it also shows that the application of GeoGebra has a positive influence on the improvement of the ability of understanding mathematical concepts in the learning process.
Efektifitas Penggunaan Metode Pembelajaran Quantum Learning terhadap Kemampuan Pemahaman Konsep Matematis Mahasiswa
Authors: Sudarman Satrio Wicaksono , Vahlia Ira
Published: February 2021

This study was conducted to improve the mastery of student concepts on calculus materials using Quantum Learning method, this research is motivated because the learning of calculus has not seen any mastery of concept implemented during learning. Therefore formulated problems in this research is how the implementation of learning calculus by using the method of Quantum Learning, and how to increase the mastery of concepts on learning calculus mathematics by applying the method of Quantum Learning. The purpose of this study is to determine the ability to understand mathematical concepts of students who obtain learning Quantum Learning and students who obtain conventional learning. The type of research is a quasi-experiment with the design is Posttest-Only Design. The sample in this research is a student of 3rd semester of Muhammadiyah Metro University. The technique of data collecting using ability comprehension test of mathematical concept and hypothesis test using t-test. From the result of hypothesis test using t test that is tct = 4,136 and ttable = 2,035 which show at significant level α = 0,05 yield tcount ttable and states that H0 is rejected means ability of comprehension mathematical concept of a student who gets learning of Quantum Learning is higher than student Who acquired conventional learning.