bluuebunny/crossref_metadata_2025 huggingface dataset:
“Buy the casket without the jewels” or “Buy the casket with the jewels”？——On the comparative analysis of economic value produced by different development methods of industrial building remains
Authors: Ha Jing , Ding Yuanyuan , Xu Chenghao
Published: January 2020

With the continuous development and expansion of the city, the industrial center of the city has gradually shifted to the emerging industrial area or the outskirts. The industrial building remains that were originally located in the city center have been left behind. The development of the site often adopts the development method of "buy the casket without the jewels ", while the development method of "buy the casket with the jewels "is few, and which development method is more valuable.Taking Laolongkou distillery as an example, this paper makes a comparative analysis in order to provide reference for the site development of industrial building remains.
The Renewal of Xinmin Food Market under the Background of "Relieving Beijing of Functions Nonessential to Its Role as the Capital"
Authors: Wang Junzhe , Zhang Yichi
Published: January 2020

In response to the needs for "relieving Beijing of functions nonessential to its role as the capital", Beijing has fulfilled a series of tasks including old urban area renewal and population dispersion in the central urban area so as to strictly control the increment and effectively relieve the pressure over the stock. Some community food markets have been shut down, or regulated, transformed and upgraded. As a typical case, the Xinmin Food Market was renewed and upgraded in 2016, which has produced some impacts on consumers, business owners and managers. By taking the Xinmin Food Market as a case, this paper makes an in-depth survey and interview with its stakeholders, explores the pre-transformation problems and post-transformation improvements, analyzes the potential needs of consumers, business owners and administrators, summarizes the development status and improvement potential of food markets and propose the strategies for further renewal, with a view to providing references and suggestions for the optimization and upgrading of food markets in the old urban area.
Research on wooden window nodes of optimal design
Authors: Liu Jing , Chen Yingqi , Meng Fei , Chen Zongxue
Published: January 2020

Mortise connection is a unique way of connection in the wood structure of ancient buildings in China. This paper takes the mortise and mortise joints of wood window frame as the object. Eight models of wooden window frames are built in ANSYS software with the parameters of tenon diameter and tenon length. The static performance of them is studied. Through simulation loading, the ultimate bearing capacity of the model under vertical and horizontal loads is obtained, and it is concluded that the Mohr strength of the dangerous point and the maximum displacement value at the contact of the mullion and mullion are linearly related to the applied load. Through the parameter analysis, such as the diameter and length of mortise and tenon joint, the optimal design of this kind of mortise and tenon joint component are carried out so as to provide the theoretical basis for its application in the actual project.
Study on the Characteristics of Formaldehyde Pollution in Typical Teaching Machine Room
Authors: Yang Pengpeng , Meng Mianwu , Gao Dingding , Lin Zhihao , Ding Hua , Tian Mengke , Chen Chunqiang , Zhou Zhenming , Huang Siyu , Kang Caiyan
Published: January 2020

This study focused on measuring the pollution characteristics, the monthly and seasonal variation rule of formaldehyde in the teaching machine room of Guangxi Normal University from March 2016 to February 2018, and the correlation between formaldehyde concentration and temperature or humidity were also analyzed. The results indicated that seasonal and monthly variation rule of formaldehyde changed with temperature and humidity in the teaching machine room. The concentration of formaldehyde was higher in summer and autumn, while was lower in winter and spring. Further analysis indicated that there was a strongly positive correlation (R2>0.87, R2>0.85, R2>0.81, p<0.01) between formaldehyde concentration and temperature, relative humidity or absolute humidity. It concluded that the formaldehyde concentration increased with the increase in the temperature and humidity. The maximum concentrations of formaldehyde in sitting breathing area and standing breathing area were 0.442mg/m3, 0.445mg/m3 and 0.184mg/m3, 0.213mg/m3 in July 2016, 2017, respectively. After eleven years, the formaldehyde in the teaching machine room was still seriously exceeded the standard (0.1mol/L), and decreased the temperature or humidity could effective alleviate the level of indoor formaldehyde concentration.
Genetic Algorithm – Back Propagation (GA-BP) Neural Network for Chlorophyll-a Concentration Inversion Using Landsat 8 OLI Data
Authors: Chen Qi , Huang Mutao , Wang Ronghui
Published: January 2020

Chlorophyll-a (Chl-a) accurate inversion in inland water is important for water environmental protection. In this study, we tested the Genetic Algorithm optimized Back Propagation (GA-BP) neural network model to precisely simulated the Chl-a in an inland lake using Landsat 8 OLI images. The result show that the R2 of GA-BP neural network model has increased 28.17% compared to traditional BP neural network model. Then this GA-BP model was applied to another two scenes of Landsat 8 OLI image with the R2 of 0.961, 0.954 respectively for March 26 2018, October 26 2018. And the spatial distribution have shown a reasonable result of Chl-a variation in Lake Donghu. This study can provide a new method for Chla concentration inversion in urban lakes and support water environment protection on a large scale.
Simulation Analysis of Adsorption of Indoor Pollutants by Modified Activated Carbon
Authors: Zhongxiang Sun
Published: January 2020

As living standards greatly improves, people not only have higher demands for their own health, but also pay more attention to indoor air quality problems. Housing decoration will produce a large number of toxic and harmful pollutants, which will endanger the health of people. This paper mainly introduces the types and hazards of indoor pollutants and the purification methods of activated carbon. Taking the adsorption of formaldehyde as an example, the relationship between the improvement measures of activated carbon and the purification efficiency is studied through simulation calculation. The double-sided adsorption model was used as the carrier to study the influence of activated carbon modification on adsorption rate through theoretical analysis, which provided a reference for the improvement of activated carbon in actual production.
Optimization on Trans-regional Electricity Transmission Scale of China’s Western Renewable Energy Base: The case study of Qinghai Province
Authors: Cai Bin , Xue Yusheng , Fan Yue , Wen Yan , Yang Xinxin , Yang Senlin , Li Zhiqing , Wang Haiting
Published: January 2020

The optimization of trans-regional electricity transmission scale of China’s Western renewable energy base is crucial to drive China's energy revolution. Currently, the regional power planning or optimization is aimed at minimizing the total economic cost, without taking the cost and benefit of transregional electricity transmission into account. In this paper, a regional planning model considering the cost and benefit of trans-regional electricity transmission was proposed, and the target of trans-regional electricity transmission scale by 2050 was optimized. This study analysed the influence of carbon price, fossil fuel scarcity value, accommodation cost for renewable power on the optimized result of trans-regional electricity transmission scale. Furthermore, the policy implication of the research was also analysed.
Improvement strategy for robustness of power grid complex network by distributed photovoltaic power system
Authors: Xie Xiangying , Ma Dayan , Na Zhixiong , Lu Yudong , Luo Xin
Published: January 2020

The robustness of power grids plays a very important role in reality. The blackout of power system can make a serious damage for the normal running of whole city or whole area and the loss caused by it is inestimable. This paper aims to propose a simulation method to evaluate the robustness of a power grid and some effective strategies to improve the robustness. Complex network keeps the most important characters of a power grid, and makes the simulation process concise. This paper studies how characters influence the robustness and proposes some conclusions and suggestions for enhancing effectively the robustness by changing these characters. In this paper, for the robustness of a network, it can be found that some parameters like tolerance coefficient are more dominant than others. Some parameters interact obviously, like capacity addition ratio and addition station ratio. Improper capacity addition strategy may have a negative effect on the network. And load node with big degree and small flow is likely an excellent choice to be added capacity by distributed photovoltaic power station. The simulation method and improvement strategy can be used in the engineering of power grid and establishment of distributed photovoltaic power system.
Microbial Risks in Household UF Purifiers and Disinfection Strategy with Electrolysis
Authors: Chen Yucheng , Fu Jian-nan , Wang Yi , Ding Jian , Lian Xiaoying , Wei Weizhi , Chen Xiao
Published: January 2020

The research studied microbial deterioration in household ultrafiltration membrane (UF) purifiers with residence time and anti-bacterial strategy with electrolysis. The pilot test was conducted on a household drinking water purifier. A 72-h stagnation test and a 60-min anti-bacterial test with electrolysis were subsequently done. There were some findings in this study: (1) The level of HPC exceeded the hygienic standard when the stagnation time was more than 3 h. (2) The lag phase of bacterial growth was no more than 12 h in filters. (3) With the method of electrolysis, microbial contamination induced by water stagnation can be controlled in the acceptable range, which was more efficient than the method of flushing with tap water.
Landslide hazard evaluation based on linear rupture plane method
Authors: Yang Min , Xiong Shuping , Cao Yue , Ling Zhaoyang , Liu Yang , Xie Yihan
Published: January 2020

In recent years, landslide disasters have occurred frequently, making the evaluation of the susceptibility of landslide hazards a major difficulty and hot topic in current research. The current research focuses on the use of statistical models or information models to analyze landslide hazards. However, the accuracy is not high. We first study the mechanism of landslide geological disasters. Based on this, combined with multi-source geological data, a linear rupture plane method (LRP) is employed to construct the landslide hazard evaluation system. LRP regards the failure surface of the slope as an approximate plane and the section as an approximate straight line. It uses the principle of limit equilibrium to calculate the safety factor of slope. In the paper, the Ziyang area with frequent landslide disasters is taken as the research area. Choosing landslide hazard points in Ziyang County as the sample data, we select seven factors including slope height, slope angle, soil bulk density, soil cohesion, internal friction angle, precipitation intensity and seismic intensity as influencing factors. Based on the LRP, we construct an evaluation system to divide the landslide into three grades: high-risk area, low-risk area and safe area, which provides effective technical support for the early warning and prevention planning of landslide disasters.
Research on a widely applicable function expression of the dry-wet bulb coefficient through deviation control theory
Authors: Feng Hong-ming , Feng Qiang-sheng , Yan Hao-xin , Zhou Ping , Huang Xiao-yin
Published: January 2020

Relying on the experimental data, by using the theory of error control and function approximation to establish new wet and dry bulb coefficientÂ(v, ta). Through searching method and Iterative approximation, it finds an approximation function whose figure is closer to "experimental data" than previous one did. Hence, it increases the measurement accuracy of relative humidity by the wet and dry bulb method under the condition of the relative humidity in the range of 10℃≤t≤70℃, air flow rate 0.1m/s≤v≤4m/s, and relative humidity 30%≤U≤90%.
Air Environment Pollution and Management Measures at Bulk Terminals
Authors: Sun Lei , Yu Shoushui , Ji Yan
Published: January 2020

In order to comprehensively evaluate the air pollution control status of bulk terminals, the atmospheric environment control measures and effects of Qingdao port Qiangang company in Shandong Province were studied. By means of field survey, monitoring and data analysis, the present situation of atmospheric environment of the research object was analyzed quantitatively, and compared with the national standards. The research results show that the atmospheric environment and main characteristic pollutants at the boundary of the terminal operation area meet the standard requirements under the premise of using spray, cover, windbreak and other management measures during the monitoring period.
Spermatophyte Flora of Liangzi Lake Wetland Nature Reserve
Authors: Zhang Xinyang , He Shijing , Tao Rong , Dai Huan
Published: January 2020

Based on route and sample-plot survey, plant resources of Liangzi Lake Wetland Nature Reserve were investigated. The result showed that there were 503 species of spermatophyte belonging to 296 genera of 86 families. There were 5 species under national first and second level protection. The dominant families of spermatophyte contained 20 species and above. The dominant genera of spermatophyte contained 4 species and below. The 86 families of spermatophyte can be divided into 7 distribution types and 4 variants. Tropic distribution type was dominant, accounting for 70.83% in total (excluding cosmopolitans). The 296 genera of spermatophyte can be divided into 14 distribution types and 9 variants. Temperate elements were a little more than tropical elements, accounting for 50.84% and 49.16% in total (excluding cosmopolitans) respectively. Reserve had 3 Chinese endemic genera, reflecting certain ancient and relict. The purpose of the research is to provide background information and scientific basis for the protection, construction, management and rational utilization of plant resources in the reserve.
Numerical Simulation of Groundwater Flow of Emergency Water Source in Nanchang City
Authors: Ma Qingshan , Jia Junyuan , Tian Fujin , Lei Ting , Chen Changjian
Published: January 2020

The source of water supply in Nanchang City is relatively single, and the safety of urban water supply is difficult to guarantee. According to the hydrogeological conditions of the study area, a threedimensional visualization numerical model of groundwater system was established. After the model identification and verification, combined with the target of emergency water supply in Nanchang city, the emergency exploitation of groundwater in Youkou emergency water source was simulated by using the model under different emergency exploitation schemes, respectively. The prediction results show that compared with scheme I and scheme II, scheme III is most suitable for the requirements of well layout, which has the advantages with the minimum drawdown of groundwater level, and the maximum exploitation. For scheme III, under the conditions that the dewatered aquifers are no more than 1/2 and 2/3 of the original aquifer, the emergency exploitation of 36.55×104m3/d and 49.45×104m3/d can be provided, which could meet the emergency water demands of 54.9% and 74.3% of the local residents, respectively.
Degradation of Trichloroethylene in Groundwater Using Iron Catalyzed Calcium Peroxide Systems
Authors: Zhang Kegang , Wang Xiaodong , Zhang Xiaohui , Peng Shengjie
Published: January 2020

The application of calcium peroxide (CaO2) activated with ferrous ion chelate sodium citrate （TCD）to stimulate the degradation of trichloroethylene (TCE) was investigated. The experimental results show that the removal efficiency of TCE increases first and then decreases with the increase of CaO2 and Na2S2O8 dosage; the chelation ratio of Fe(II)/TCD, too much or too little, will affect the removal efficiency of TCE; when the molar ratio of CaO2/ Fe(II)/ TCD/ TCE is 18/6/6/1, the removal efficiency of TCE is the highest, reaching 97.99% within 200Min. The results demonstrated that the technique of CaO2 activated with ferrous ion is a highly promising technique in in situ chemical oxidation (ISCO) remediation in TCE contaminated sites.
Study on the Evolution Characteristics of International Nickel Ores Trade from Perspective of Complex Networks
Authors: Ding Yun
Published: January 2020

In order to analyze the evolution characteristics of nickel ores international trade structure, this paper builds up the network model by adopting the complex network theory. Based on the International trade data of nickel ores from 2007 to 2018, we analyze the overall pattern of trade network, core country identification and the power-law distribution analysis. According to the research, it is found that China and the United States have a strong influence in the international nickel ores trading network. The more nickel producing counties participated in this trade and the international nickel ore market commenced to globalization.
Spectral imaging of X-COP galaxy clusters with the Sunyaev–Zel’dovich effect
Authors: Baldi Anna Silvia , Bourdin Hervé , Mazzotta Pasquale
Published: January 2020

The Sunyaev–Zel’dovich effect is the ideal probe for investigating the outskirts of galaxy clusters. To map this signal, we apply a spectral imaging technique which combines parametric component separation and sparse representations. Our procedure is an improved version of an existing algorithm, which now features a better treatment of astrophysical contaminants, and the implementation of a new beam deconvolution. We use the most recent frequency maps delivered byPlanck, and we consider the clusters analysed in theXMMCluster Outskirts Project (X-COP). In particular, we focus on the images of two clusters which may be possibly interacting with neighbouring objects, namely A2029 and RXCJ1825. We also highlight the advantages of the new beam deconvolution method, through a comparison with the original version of the imaging algorithm.
Cosmology with Thermal Sunyaev Zeldovich Power Spectrum and Cluster Counts: Consistency, Tensions and Prospects
Authors: Bolliet Boris
Published: January 2020

In this proceeding I summarise the current status of cosmological constraints obtained from current SZ data, focusing on the Planck thermal SZ power spectrum and cluster counts. I discuss the consistency between Planck SZ data and other SZ cluster or galaxy surveys as well as the apparent discrepancy between SZ and CMB for the amplitude of matter clustering σ8. Finally I discuss forecasted constraints on massive neutrinos and the X-ray mass bias in the context of future SZ power spectrum measurements.
The Sunyaev-Zeldovich effect from clusters of galaxies
Authors: Pointecouteau Etienne
Published: January 2020

In this paper, we recall the basics of the the Sunyaev-Zeldovich effect from groups and clusters of galaxies. We review the transformational results from SZ surveys in the past decade, that have led to the detection of new clusters of galaxies from the local to the very distant Universe. The SZ effect has become a very efficient way to investigate the astrophysics of the hot intra-cluster gas, very competitive and complementary to X-ray observations. It renewed the use of massive halos as a cosmological probe or to study the physics of structure formation and evolution. We discuss the present strong synergies between the SZ and X-ray observations.
Observing with NIKA2Pol from the IRAM 30m telescope : Early results on the commissioning phase
Authors: Ritacco A. , Adam R. , Ade P. , Ajeddig H. , André P. , Andrianasolo A. , Aussel H. , Beelen A. , Benoît A. , Bideaud A. , Bourrion O. , Calvo M. , Catalano A. , Comis B. , De Petris M. , Désert F.-X. , Doyle S. , Driessen E.F.C. , Gomez A. , Goupy J. , Kéruzoré F. , Kramer C. , Ladjelate B. , Lagache G. , Leclercq S. , Lestrade J.-F. , Macías-Pérez J.F. , Mauskopf P. , Maury A. , Mayet F. , Monfardini A. , Perotto L. , Pisano G. , Ponthieu N. , Revéret V. , Romero C. , Roussel H. , Ruppin F. , Schuster K. , Shimajiri Y. , Shu S. , Sievers A. , Tucker C. , Zylka R.
Published: January 2020

The NIKA2 polarization channel at 260 GHz (1.15 mm) has been proposed primarily to observe galactic star-forming regions and probe the critical scales between 0.01-0.05 pc at which magnetic field lines may channel the matter of interstellar filaments into growing dense cores. The NIKA2 polarime-ter consists of a room temperature continuously rotating multi-mesh HWP and a cold polarizer that separates the two orthogonal polarizations onto two 260 GHz KIDs arrays. We describe in this paper the preliminary results obtained during the most recent commissioning campaign performed in December 2018. We concentrate here on the analysis of the extended sources, while the observation of compact sources is presented in a companion paper [12]. We present preliminary NIKA2 polarization maps of the Crab nebula. We find that the integrated polarization intensity flux measured by NIKA2 is consistent with expectations. In terms of polarization angle, we are still limited by systematic uncertainties that will be further investigated in the forthcoming commissioning campaigns.
Preparation and performance analysis of gas-quenched steel slag beads
Authors: Wang Hui , Zhang Wei , Liu Chao , Xing Hongwei , Guo Chen , Zhang Yuzhu
Published: January 2020

The low utilization rate of steel slag in China has exposed serious environmental and social problems. In the present work, the basic oxygen furnace (BOF) slag was modified by blast furnace (BF) slag and then beaded by the means of gas quenching. The gas-quenching rate, bead formation rate, physical properties, microscopic characteristics and free lime (f-CaO) of gas-quenched slag beads were analyzed to broaden the utilization of BOF slag. The results show that the more BF slag is added, the higher the gas-quenching rate is, and the lower the bead formation rate becomes. When no BF slag is added, the beads are mainly composed of magnetite, limonite and melilite. After BF slag is added, a large amount of glass phase and a little amount of Ca2SiO4 and MgO are found in beads. The content of f-CaO beads decreases after the modified slag is gas quenched at high temperature. Moreover, the more BF slag is added, the higher the elimination rate of f-CaO becomes. Considering the industry standard of steel slag sand in China as well as the gas-quenching rate, physical and chemical properties, the gas-quenched steel slag beads with 5 and 15% BF slag better meet the medium sand standard, which can be used as fine aggregate.
Topology optimization of steering knuckle structure
Authors: Srivastava Saurabh , Salunkhe Sachin , Pande Sarang , Kapadiya Bhavin
Published: January 2020

Steering knuckle connects steering system, suspension system and braking system to the chassis. The steering knuckle contributes a significant weight to the total weight of a vehicle. Increasing the efficiency of an automobile without compromising the performances is the major challenge faced by the manufacturers. This paper presents an effective topology optimization of steering knuckle used in a vehicle with the primary objective of minimizing weight. The study on optimization of knuckle is divided into two phases, the first phase involves making of a computer-aided design model of the original steering knuckle and carry out finite element analysis on the knuckle by estimating the loads, which are acting on the component. In the second phase, design optimization of the model of steering knuckle is carried out, and excess material is removed at the region where induced stress is negligible as obtained in finite element analysis assuming standard boundary and loading conditions. The paper describes a research work carried out to optimize structural topology giving the essential details. The methodology may be applied to optimize structural components used in applications where the ratio of desired properties to the cost, generally in terms of weight, is to be optimized. In the case of automobiles, strength to weight ratio has to be maximized. New researchers working in the area will have an understanding of the procedures, and further, the techniques may be applied to design in general.
A multi-discretization scheme for topology optimization based on the parameterized level set method
Authors: Wei Peng , Liu Yang , Li Zuyu
Published: January 2020

In the framework of the parameterized level set method, the structural analysis and topology representation can be implemented in a decoupling way. A parameterized level set function, typically, using radial basis functions (RBFs), is a linear combination of a set of prescribed RBFs and coefficients. Once the coefficients are determined, the theoretical level set function is determined. Exploiting this inherent property, we propose a multi-discretization method based on the parameterized level set method. In this approach, a coarse discretization is applied to do the structural analysis whereas another dense discretization is employed to represent the structure topology. As a result, both efficient analysis and high-resolution topological design are available. Note that the dense discretization only accounts for a more precise and smooth description of the theoretical level set function rather than introduce extra design freedom or incur interference to structural analysis or the optimization process. In other words, this decoupling way will not add to the computational burden of structural analysis or result in non-uniqueness of converged results for a particular analysis setting. Numerical examples in both two-dimension and three-dimension show effectiveness and applicability of the proposed method.
Back Squat vs. Hip Thrust Resistance-training Programs in
Well-trained Women
Authors: Barbalho Matheus , Coswig Victor , Souza Daniel , Serrão Julio Cerca , Hebling Campos Mário , Gentil Paulo
Published: January 2020

The study compared the effects of back squat (BS) and hip thrust (HT) exercises
on muscle strength and hypertrophy in well-trained women. Twenty-two
participants were divided in two groups: BS group (n=12,
26.4±1.32 years, 171.8±3.79 cm, and
69.5±4.9 kg) performed the BS exercise and HT group
(n=10, 27.5±1.42 years, 170.8±4.4 cm,
67.5±4.7 kg) performed the HT exercise. Training was performed
for 12 weeks. Before and after the training period, participants were assessed
for quadriceps femoris and gluteus maximus muscle thickness (MT) and 1
repetition maximum (1RM) test on the BS and HT. Both groups significantly
increased hip extensors MT and HT 1RM; however, the improvements in BS group
were higher than in HT group on quadriceps femoris (12.2% for BS and
2% for HT, P<0.001) and gluteus maximus MT (9.4% for BS
and 3.7% for HT, P=0.001) and BS 1 RM (35.9% for BS and
4.3% for HT, P<0.001). BS was more efficient than HT, since it
resulted in greater muscle hypertrophy of the quadriceps femoris and gluteus
maximus, increases in BS 1RM and similar increases in HT.
A Green, Scalable, One-Minute Synthesis of Benzimidazoles
Authors: Elumalai Vijayaragavan , Hansen Jørn H.
Published: January 2020

Herein is reported a substantially improved synthesis of 2-substituted benzimidazoles by condensation of 1,2-diaminoarenes and aldehydes using methanol as the reaction medium. The developed method afforded moderate to excellent yields (33–96%) at ambient temperature, displays high functional group tolerance, is conducted open to air, and requires only one minute reaction time under catalyst- and additive-free conditions. Moreover, the efficient protocol permits scale-up to multi-gram scale synthesis of benzimidazoles and will become a method of choice when constructing such heterocyclic systems.
Progesterone Elevation and Preventive Strategies to Avoid Implantation Failure
Authors: Bozdag Gurkan , Turkyilmaz Esengul , Yildiz Sule , Mumusoglu Sezcan , Yarali Hakan
Published: January 2020

Despite the wide utilization of gonadotropin-releasing hormone analogs, progesterone elevation (P4E) in the late follicular phase occurs in 5 to 30% of all ovarian stimulation (OS) cycles. Although the detrimental effect of P4E on pregnancy rates in fresh in vitro fertilization cycles is valid in all subsets of cases, higher levels of P4 and a longer duration of P4E may be needed in patients with a hyper-ovarian response in order for a negative impact on pregnancy rates to occur. Available preclinical and clinical data suggest that aggressive OS with high doses of follicle-stimulating hormone might increase 3β-hydroxy steroid dehydrogenase and 17β-hydroxy steroid dehydrogenase enzyme activity in human granulosa cells, which leads to high P4 production and hence a higher amount of leakage to the systemic circulation due to a lack of 17α-hydroxylase enzyme expression in human species. High P4 concentrations appear to alter gene expression in the endometrium; however, caution is necessary regarding its potential effect on oocyte/embryo quality with respect to the role of inherent follicular disruption in some women. In terms of the mechanism of overproduction in P4 synthesis, the main preventive strategy should be avoiding aggressive stimulation. Unfortunately, there is lack of large-scale randomized controlled trials for other approaches, including deferred embryo transfer in the thaw cycle. Since there is a significant inter-assay variability for P4 measurement, it may be wise to recommend that every center should define their own P4E and the level needed for harm to occur based on their own assays and datasets before deciding the best approach.
Impaired Fibrinolysis Predicts Adverse Outcome in Acute Coronary Syndrome Patients with Diabetes: A PLATO Sub-Study
Authors: Sumaya Wael , Wallentin Lars , James Stefan K. , Siegbahn Agneta , Gabrysch Katja , Himmelmann Anders , Ajjan Ramzi A. , Storey Robert F.
Published: January 2020

Hypofibrinolysis is a key abnormality in diabetes but the role of impaired clot lysis in predicting vascular events and mortality in this population is yet to be determined. We aimed to investigate the relationship between fibrin clot properties and clinical outcomes in patients with diabetes and recent acute coronary syndrome (ACS). Plasma samples were collected at hospital discharge from 974 ACS patients with diabetes randomised to clopidogrel or ticagrelor in the PLATO trial. A validated turbidimetric assay was employed to study fibrin clot lysis and maximum turbidity. One-year rates of cardiovascular (CV) death, spontaneous myocardial infarction (MI) and PLATO-defined major bleeding events were assessed after sample collection. Hazard ratios (HRs) were determined using Cox proportional analysis. After adjusting for CV risk factors, each 50% increase in lysis time was associated with increased risk of CV death/MI (HR 1.21; 95% confidence interval [CI] 1.02–1.44; p = 0.026) and CV death alone (HR 1.38; 1.08–1.76; p = 0.01). Similarly, each 50% increase in maximum turbidity was associated with increased risk of CV death/MI (HR 1.25; 1.02–1.53; p = 0.031) and CV death alone (HR 1.49; 1.08–2.04; p = 0.014). The relationship between lysis time and the combined outcome of CV death and MI remained significant after adjusting for multiple prognostic vascular biomarkers (p = 0.034). Neither lysis time nor maximum turbidity was associated with major bleeding events. Impaired fibrin clot lysis predicts 1-year CV death and MI in diabetes patients following ACS.

Clinical Trial Registration URL: http://www.clinicaltrials.gov. Unique identifier NCT00391872.
Study of muscular branch of median nerve to the pronator teres
Authors: Bindurani MK , Lokesh HM , Nanjundappa BN
Published: January 2020

Background and aims : Disorders of the peripheral nervous system are common among which entrapment neuropathies are frequently encountered by the clinician. The knowledge of innervation pattern of median nerve to pronator teres are of considerable importance in understanding the various presentations of pronator teres syndrome, in investigating the lesions of median nerve, to plan adequate treatment and to avoid iatrogenic injuries during surgeries there by increasing the perfection of surgical approach. The aim of present study is to study the point of origin of muscular branches of median nerve to pronator teres muscle with respect to interepicondylar line and to study the number of branches of median nerve to the pronator teres muscle. Materials and methods : Fifty upper limbs procured from embalmed cadavers aged about 20 to 50 years were used for the study. Results : Out of total 50 specimens, nerve to pronator teres was arising at a mean distance of 1.31 ± 0.58 cm proximal to the interepicondylar line (range 0.5 - 3cm) and 1.2 ± 1.27 cm distal to the interepicondylar line (0-3.5cm). Conclusion: In greater number of the specimens, the nerve to the pronator teres was arising from the median nerve proximal to the interepicondylar line. In majority of the specimens the pronator teres was innervated by either single branch or two branches.
Syphilitic heart - a case report
Authors: Jyothi K C , Shailaja Shetty , Mahadeva K C , Dev M Kapil
Published: January 2020

Heart and its great vessels are involved in tertiary syphilis in the form of syphilitic aortitis often 20 years or more after primary infection is contracted. In a 60 year old male cadaver, we found an enlarged heart with aneurysm of ascending aorta and semilunar septa was found protruding in to the lumen of arch of aorta distal to the origin of left subclavian artery. Right pulmonary vessels were dilated. Right and left atrial cavity were dilated, left ventricular hypertrophy with dilatation was noted. Hispathological findings of the specimens were suggestive of syphilitic aortitis. Cardiovascular syphilis though uncommon is still a significant cause of mortality and morbidity, which can be reduced by adequate screening, accurate diagnosis and appropriate treatment.
Variations in the aortic - common iliac bifurcation in man - a cadaveric study
Authors: Sharma Maneesha , Sharma Tripta , Singh Richhpal
Published: January 2020

Background and aims: The abdominal aorta usually terminates at the level of L4 vertebral body into common iliac arteries. With the present day advancements in vascular surgery and neurological surgeries involving approach to lumbar vertebral bodies, we need to know any variations from this normal course. So, the present study aimed at knowing the anatomical variations in the termination of abdominal aorta and in common iliac arteries which might prove to be of some help in some of such surgeries. Material and methods: The study was conducted on 35 adult (29 males and 6 females) embalmed cadavers obtained from anatomy departments of Govt. Medical college, Amritsar and Gian Sagar Medical college, Ramnagar, Punjab. The abdominal cavity was opened, peritoneum stripped off from aorta at its bifurcation, variations in its termination, common iliac arteries and their branches were carefully observed and recorded. Results: In 54.29% cases the level of aortic bifurcation was found opposite 4th Lumbar vertebra, in the rest it was variable between L3 and L5 vertebra. Conclusions: These variations may lead to some trouble during vertebral surgeries, making it essential to investigate and locate the exact position of great vessels before the commencement of surgery.
Diffuse idiopathic skeletal hyperostosis - a case report
Authors: Mudiraj Nitin  R. , Dhobale Manisha R.
Published: January 2020

The case reported here is an incidental finding of a specimen of lower three lumbar vertebrae with sacrum. It displayed ossification of anterolateral aspect of lower three lumbar vertebrae with sparing of intervertebral disc space. Para-articular osteophytosis was found at zygopophyseal (facet) joints, however ankylosis was absent at zygopophyseal joints as well as at interspinous sites. Based on its features we labelled it as a case of diffuse idiopathic skeletal hyperostosis (DISH). It is a common but often unrecognized disorder of unknown etiology in elderly individuals. The awareness of this entity may stimulate clinicians and researchers to focus on its pathogenesis, treatment and prevention.
Midgut malrotation with volvulus - a case report
Authors: Choudhury Pradipta Ray , Sarda Prasant , Singh Shobhit , Baruah Prabahita , Talukdar K. L.
Published: January 2020

Midgut malrotation is a rare anatomic anomaly that complicates the diagnosis and management of acute abdominal pain. It is a congenital anomaly that arises from incomplete rotation or abnormal position of the midgut during embryonic development. A two years old boy was brought with recurrent abdominal pain and vomiting. On ultrasonography, the intestinal malrotation was suspected and thus contrast enhanced computed tomography (CECT) was done. On CECT, abnormal relationship between the superior mesenteric artery (SMA) and superior mesenteric vein (SMV), colon on the left side of the abdominal cavity, 'Whirlpool sign' etc., were found. All findings were suggestive of midgut malrotation with volvulus. Detection of uncomplicated malrotation should not be trivialized because such patients might experience a future complication.
Morphometric study of jugular foramen in Tamil Nadu region
Authors: Vijisha P , Bilodi Arun Kumar ,   Lokeshmaran
Published: January 2020

Background and aims: Jugular foramen is an important foramen transmiting a number of structures at the base of the skull. Various tumours and infiltrating inflammatory processes are associated with this foramen. Hence, present study was taken up to study morphometry of the jugular foramen in human skulls in Tamil Nadu region. Material and methods: A total number of 60 jugular foramina were examined from 30 adult dry skulls of unknown age and sex. Measurements were taken using Vernier Calipers. Results were analysed statistically. Results: The length, width and area of jugular foramen of right side were compared with left side. Predominance of one of the two foramina was found in 86.6% (26): Predominance on right was 76.6% (23) and on left was 10% (3).The presence of partial septum was found around 73.3% on right side and 80% on left side respectively. Dome was present only 26.6% on right side and 3.33% on left side but in 70% of skulls it was present bilaterally. Conclusion: The morphometric variations in the skulls of Tamil Nadu region are probably ethnic and racial. The metric information is of use to the neurosurgeons dealing with the region.
Arch Length and Palatal Rugae: An Adjunct in Gender Discrimination
Authors: Mittal Sanjay , Vyas Pooja , Bhullar Mandeep , Singla Divya , Aggarwal Isha , Hassan Rameez
Published: January 2020

Introduction Palatal rugae or plica palatine are the finger prints of the oral cavity and the arch length varies between males and females. These two parameters constitute an integral part of the anthropometric studies in the realms of dentistry as well as forensic odontology. The aim of this study was to assess whether any relationship existed between the upper arch length and the rugae pattern and whether these two parameters showed any gender differentiation.

Materials and Methods The sample consisted of upper and lower study models of 60 subjects (30 males and 30 females). Arch lengths were measured using a brass wire and rugae were traced on the dental casts and assessed by applying the Thomas and Kotze classification (1983). The data collected was subjected to statistical analysis.

Results The results showed that the maxillary and mandibular arch length dimensions were higher in males than in females; however, the differences were found to be statistically insignificant. The assessment of rugae pattern showed that the male subjects had a higher number of rugae. The differences in rugae pattern distribution for male and female subjects were found to be statistically significant.

Conclusion The palatal rugae pattern and maxillary arch length can be used as an additional method in differentiating gender between human population groups.
Febrile Seizure Plus and PCDH19-Related Epilepsy Syndromes
Authors: Ali Irfan , Clarke Dave F.
Published: January 2020

Epilepsy is a disorder of the brain characterized by an enduring predisposition to generate epileptic seizures. Practically, a patient has epilepsy if having two unprovoked seizures more than 24 hours apart, one unprovoked seizure and significant risk of another seizure, or epilepsy syndrome. Seizures induced by fever do not therefore fit this classification. An initial febrile seizure may therefore cause a false sense of security in children who evolve to febrile seizure plus syndromes. Sodium channel defects seem to predominate as the main causative factor for febrile seizure plus syndromes. More severe pathological variants, such as Dravet's syndrome, have phenotypic similarities to other fever-associated epileptic encephalopathies, including those caused by mutations in protocadherin 19 (PCDH19). The clinical presentations, investigational studies, and management of febrile seizure plus syndrome, as well as epilepsies associated with PCDH19 mutations will be reviewed.
Bifid Rib in a male cadaver : Serendipic or Syndromic
Authors: Tirpude Amit Purushottam , Gaikwad Manisha R , Tirpude Pradhnya , Haldar Arpan , Jain Mantu
Published: January 2020

Bifid rib presents usually as an isolated and asymptomatic finding on x-rays and cadaveric dissections. This may be due to atypical process of segmentation of developing somites. Sometimes it may occur with other malformations. Aim of the case report presented here was to give a description of the characteristics ofbifidrib and to look for any associated abnormalities. During routine dissection, bifid rib was found in thoraco-abdominal region of a male cadaver. The dimensions of the bifid rib were measured with digital vernier calliper of resolution 0.01mm and photographed using a digital camera. Survey of other regions of the cadaver was done by dissection. Bifurcation of anterior part of right third rib enclosing an additional intercostal space was found. Follow-up dissection in other regions of the cadaver revealed characteristics of Crohn's disease of jejunum, ileum, and transverse colon and signs of dysmorphism of both the kidneys. The knowledge of such variations will be of use to the clinicians, radiologist and anatomist to investigate any incidental bifid rib finding.
Anatomy models using Silicone Moulds - An innovative meth
Authors: A. Marítn Lucas , Ramos Amith , Quadras Roshan Pranup
Published: January 2020

Introduction: Neuroanatomy specimens like cerebrum, cerebellum, brain stem, etc. when taken out of preservation solution dries up and becomes discoloured within a short span of time. These specimens are easily damaged when used repeatedly and become unfit for teaching. The models of these specimen made with silicone using silicone moulds are similar to the original specimens with excellent surface detailing.Using silicone moulds, models like vertebrae using resin also can be made. Materials and methods : The silicone material used in our study is Moldsil P. For making a silicone mould, an acrylic jar is made, which is little bigger than the specimen. Moldsil P is mixed with hardner and poured into the container so that it fills half the volume of the jar. The specimen is immersed into the silicone in such a way that only its upper half is exposed. After the silicone is hardened, the rest of the specimen is covered with the silicone mixture [Moldsil P+hardener] and allowed to dry. The specimen is taken out and the cavity of the impression is filled with silicone or resin to make a cast. Results & Conclusion: The silicone models of neuroanatomy specimens made using silicone moulds are soft, easy to handle and are exactly similar to the specimens. These are used as an alternative teaching aid. Silicone moulds can be used for taking resin cast of vertebra
A novel hybrid approach based on dynamic adaptive variable-weight optimization for short-term wind speed prediction
Authors: Huang Yuansheng , Yang Lei , Yang Yingqi , Dong Yulin , Gao Chong
Published: January 2020

One of the most important preconditions for guaranteeing a smooth link between wind farms and the power system is to develop an accurate model for forecasting the wind speed. This paper describes a novel wind speed prediction model based on dynamic adaptive variable-weight optimization theory that considers the relevance of historical observations. The model applies signal preprocessing to recorded wind speed observations using ensemble empirical mode decomposition. The decomposed signals are then subjected to a random noise reduction procedure, which improves the robustness of the prediction model. An autoregressive integrated moving average model, general regression neural network, and long short-term memory are used to recognize the different features of each decomposed subsequence. Brain storm optimization is then applied to further promote the forecasting performance by integrating different forecasting models with dynamically adapted variable weights. To evaluate the prediction capacity of the proposed method, three case studies are conducted. The experimental outcomes reveal that the method presented in this paper provides more satisfactory prediction ability and robustness than other models.
All-electron ab initio Bethe-Salpeter equation approach to neutral excitations in molecules with numeric atom-centered orbitals
Authors: Liu Chi , Kloppenburg Jan , Yao Yi , Ren Xinguo , Appel Heiko , Kanai Yosuke , Blum Volker
Published: January 2020

The Bethe-Salpeter equation (BSE) based on GW quasiparticle levels is a successful approach for calculating the optical gaps and spectra of solids and also for predicting the neutral excitations of small molecules. We here present an all-electron implementation of the GW+BSE formalism for molecules, using numeric atom-centered orbital (NAO) basis sets. We present benchmarks for low-lying excitation energies for a set of small organic molecules, denoted in the literature as “Thiel’s set.” Literature reference data based on Gaussian-type orbitals are reproduced to about one millielectron-volt precision for the molecular benchmark set, when using the same GW quasiparticle energies and basis sets as the input to the BSE calculations. For valence correlation consistent NAO basis sets, as well as for standard NAO basis sets for ground state density-functional theory with extended augmentation functions, we demonstrate excellent convergence of the predicted low-lying excitations to the complete basis set limit. A simple and affordable augmented NAO basis set denoted “tier2+aug2” is recommended as a particularly efficient formulation for production calculations. We finally demonstrate that the same convergence properties also apply to linear-response time-dependent density functional theory within the NAO formalism.