bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Coiling Procedure on Microstructure and Mechanical Properties of C-Si-Mn Hot-rolled TRIP steel
Authors: Zhang Bin , Du Linxiu , Dong Ying
Published: August 2019

The effect of coiling procedure on microstructure evolution and mechanical properties were experimentally investigated. The results showed that the strength of experimental steels was increased and the elongation was decreased with temperature below Ms point. Among all the experimental steels, the mechanical properties of steel A and steel C were imperfect. It can be attributed to the high coiling temperature (500 °C) and low coiling temperature (285 °C). The mechanical properties of the experimental steel B were the most balanced and excellent. The yield strength, tensile strength and impact energy of the 1/4-Charpy size specimen were 685 MPa, 1010 MPa and, 16.3 J respectively, which could meet the demand of high strength structural steel in civilian applications the total elongation at -20 °C was 15.3% and TRIP effect caused by RA was obvious.
Research on Mechanism of FGFR1 Inhibitor BAY1163877 against Proliferation of Breast Cancer Cells
Authors: Cui Yingnan , Zhang Li , Xing Jin , Yang Zhaoying
Published: August 2019

To investigate the effect and mechanism of fibroblast growth factor receptor 1 (FGFR1) inhibitor BAY1163877 on proliferation and apoptosis of breast cancer cells. The expression of FGFR1 in human breast cell lines was detected by qRT-PCR and western blot. IC50of BAY1163877 and cell viability were measured by CCK-8 method. Cell proliferation was observed by colony assay. Cell apoptosis after treatment of BAY1163877 was tested by flow cytometry. The expressions of p-FGFR1/FGFR1 and p-STAT3/STAT3 protein were detected by Western blot. According to the results of qRT-PCR and Western blot, FGFR1 high expression of breast cancer cell line MDA-MB-231 and FGFR1 low expression of breast cancer cell line MCF-7 were selected. BAY1163877 inhibits proliferation of MDA-MB-231 and MCF-7 cells and induces apoptosis of MDA-MB-231 and MCF-7 cells. The results of Western blot showed that the expression of p-FGFR1 and p-STAT3 protein in MDA-MB-231 was reduced after BAY1163877 treatment and the expression in MCF-7 was not significantly changed. BAY1163877 inhibits the proliferation and induces the apoptosis of high FGFR1 expression breast cancer cell line MDA-MB-231, and its mechanism may be related to the decrease of p-FGFR1 and p-STAT3 protein expression. BAY1163877 inhibits the proliferation and induces the apoptosis of MCF-7, but its mechanism still needs the further study.
HPLC Method for Simultaneous Determination of Six Isoflavones in Soybean Yoghurt
Authors: Huang Zican , Xia Ming
Published: August 2019

Objective: To establish an HPLC method for simultaneous determination of six isoflavones (daidzin, glycitin, genistin, daidzein, glycitein, and genistein) in soybean yoghurt, providing a reference for its development of quality standards and functional evaluation. Methods: The six kinds of isoflavones were measured on a C18 column (250 mm×4.6 mm, 5μm) with a gradient solvent system of acetonitrile - trifluoroacetic acid solution as mobile phase at a flow rate of 1mL·mL-1 and the column temperature was kept at 40°C. The detection wavelength was 255nm. Results: Excellent chromatographic separation and good linearity with peak areas were achieved for 6 kinds of soybean isoflavones composition. The experiment was reproducible. Within the studied concentration ranges, the RSD were less than 2.50% and the average recovery were between 94.10% and 99.70%. Conclusion: This HPLC method is simple, feasible, stable and reliable. More importantly, it can detect the content of six soybean isoflavones simultaneously.
Intelligent Simulated Human Model in Modern Medical Education
Authors: Wang Na , Li Mengyang , Jia Huiqing , Wang Jinguo
Published: August 2019

As a new carrier of medical education, intelligent simulated human model has increasingly prominent advantages in modern medical education. This paper introduces the current situation of the application of intelligent simulators in medical colleges and universities in China, analyzes the problems existing in the application of intelligent simulators in medical simulation teaching, and puts forward suggestions for effectively promoting the teaching of intelligent simulators in the future.
Simulation Analysis of Forging Process of Automobile Aluminum Alloy Swing Arm
Authors: Shi Peicheng , Xia Xianyang , Zhou Jun , Xiao Ping
Published: August 2019

To effectively shorten product development cycle, cut down the expense and reduce costs, in the production forging process of aluminum alloy swing arm, the technological process of sawing off, high temperature heat treatment, roll forging, blank making, flattening, die forging, residual edge removing and forging inspection are adopted. Taking Deform-3D software as the platform, the forging process of aluminum alloy swing arm is modeled and simulated by finite element method, and the flow law of cold extrusion metal during the forging process of aluminum alloy swing arm is analyzed. The results show that the forging process can achieve a better forming forging, which can provide a theoretical basis for the actual industrial production of forgings.
Study on Equivalent Bending Stiffness of 1250mm2 Large Section Conductor
Authors: Liu Chen , Qin Jian , Wan Jiancheng , Jing Wenchuan , Fan Chenghu
Published: August 2019

Current calculation method of tension stringing construction does not include the influence of bending stiffness of conductor. There are relative errors between the calculated results and the measured results of a series of important parameters, such as conductor wiring length, maximum pull tension, sag between the various sections, which have adverse effects on construction safety. Aiming at 8×JL1/G2A-1250/100 conductor in UHV engineering, the simulation model was established by the finite element software for the equivalent bending stiffness of the large section conductor. The coupled displacement constraints were applied to the whole section of the two ends of conductor. Changing the vertical displacement of one end section, the conductors with different lengths were simulated by the explicit kinetic method considered the contact friction between wire strands. Combined with the mechanical cantilever beam model, the equivalent bending stiffness of the conductor under different working conditions was obtained. By analyzing the curves of the equivalent bending stiffness of the conductor, the equivalent bending stiffness of the long conductor suitable for engineering calculation is obtained. The research result provides key parameter for the accurate tension control in tension stringing construction of UHV project.
Cement Pavement Crack Identification Method Based on DFT Transformation and Crack Segment Splicing Method
Authors: Ying Hong , Chen Shunxin , Zhang Yukai
Published: August 2019

The groove is the biggest interference factor in the identification of cement pavement cracks. In the process of restraining or eliminating the grooves, it inevitably reduces the contrast between the cracks and the background, at the same time weakens the cracks in the grooves and destroys the connectivity of the cracks. A large number of short crack fragments are mixed with noise, which increases the difficulty of subsequent identification. In order to solve these problems, a slot elimination method based on DFT transform and a splicing method based on grid voting method are proposed. Firstly, the image of cement pavement is transformed from DFT to frequency domain, and the characteristic of groove in frequency domain spectrum is obtained. On this basis, according to the periodicity of the groove in the spatial image, the position of the groove spectral peak in the frequency domain image is deduced, and a series of filters are designed to eliminate these spectral peaks in the frequency domain, and then the slot is eliminated by the inverse DFT transform in the spatial domain. Then, the global spatial image of cement pavement is binarized by Otsu method, and the noise is filtered after the square vote to realize the splicing of cracks so as to achieve the purpose of complete extraction of cracks. The experimental results show that the proposed method can eliminate the interference of the groove and keep the integrity of the crack after splicing.
Computer Design of Overload Protection Device of Adsorption Automatic Locking Screw Machine
Authors: Zhu Xiaoyan , Fang Ziqiang
Published: August 2019

This paper studies the overload protection structure of the single-axis adsorption automatic locking screw machine commonly used in industrial production, focusing on the simulation analysis of the overload protection coupling and the buffer shaft. The computer design requirements and functions of these two structures in the process of product design are discussed.
Simulation of Microscale Features Effect on Mechanical Properties of PTFE-Al Composites
Authors: Liu Juan , Tang Le , Zheng Yuanfeng , Wang Haifu
Published: August 2019

The compression behavior of polytetrafluoroethylene (PTFE)–aluminum (Al) is studied by the means of the two-dimensional finite element analysis of mesoscale model containing a random dispersion of particles. The results show that for composite materials with a single particle size the strength of the material increases first and then decreases with the increase of the content of metal particles. When the particle content is high the strength of the material can be improved by a reasonable particle gradation. The influence of particle content and size on the strength of particle composites is obtained and theoretical analysis is carried out from the perspective of the formation and evolution of force chains.
Proximal schemes by family of szl –widering mappings
Authors: Abed S S , Maibed Z H
Published: August 2019

in this paper, we give a concept of szl –widering mapping which is independent of nonspreading mappings, k – strictly pseudo nonspring mappings and nonexpansive mappings. Also we introduce a new proximal point schemes of resolvent and szl –widering mappings. On the other hand, we discuss that the weak and strong convergence for these proximal point schemes in real Hilbert space under different conditions to asymptotic common fixed point of szl –widering mappings.
Squeeze film characteristics in synovial hip joint
Authors: Abdullah Enas Yahya
Published: August 2019

In this paper general classification of the lubrication regimes in synovial hip joint was given The discussion was focused on two main points, the calculation of film thickness and minimum film thickness for each of the (hydrodynamic lubrication, squeeze film lubrication and, elasto-hydrodynamic lubrication), and the relationship between film thickness and gait cycle( stance phase and swing phase ) also and the coefficient friction. Physical properties affecting the film thickness will be discussed in each lubrication system.
Nonparametric Estimation for Hazard Rate Function by Wavelet Procedures with Simulation
Authors: Mohammed Ali Talib , Hussein Iden Hasan
Published: August 2019

This article is a study of a non-parametric estimation of the hazard rate function using the linear wavelet estimation for right randomly censoring data. The strategy of the estimation is based on the use of the wavelet projection of the father function{φ

j,k
(x),j = 1,2,…, 0 ≤ k ≤2
j−1} on the subspace (Vj
) of the spaceL
2(R), with the Breslow estimate of the cumulative function. Real data of patients suffering from liver metastases is using as an application. Moreover, a simulation study is used to give more clarify to the method of estimation.
Some Result in 2-Fuzzy Vector Metric Spaces
Authors: Faydh Sada , Hassan Zainab , Kareem Mushtaq , Abdulameer Dhuha
Published: August 2019

Recently, the 2-fuzzy vector metric space played a wild role in many subjects. Therefore, more than one author works and writes a new paper on 2-fuzzy vector metric space. In this paper, first we recall the concept of 2-fuzzy vector metric spaces and consider the topology induced by a fuzzy vector metric spaces. Open balls, closed balls in 2-fuzzy vector metric spaces are also defined convergent sequence, Cauchy sequence and consider the topology induced by a 2-fuzzy vector space.
Solvability and Controller Action on Local Saddle-Node Bifurcation of Reduced Order Two-Dimensional Differential-Algebraic System
Authors: Kadhim Mohammed , Almamoori Mohsin
Published: August 2019

This paper focuses on the solvability and local Saddle-Node bifurcation ensurance of two-dimensional differential-algebraic equations of index-1 with its feedback controller. The feedback controller action has been designed to satisfy the necessary requirements for Saddle-Node bifurcation ensurance. The mathematical assumptions and proofs have proposed with systematic illustrations to demonstrate the applicability of the proposed approach.
The Solutions of Mixed Hemiequilibrium Problem with Application in Sobolev Space
Authors: Alwan Alyaa A. , Naser Hasan A. , Hashoosh Ayed E.
Published: August 2019

The present work deals with the existence and uniqueness of solutions for new class of hemiequilibrium problems

ϑ

(

x,y

)

+
ν

(
y
)

−
ν

(
x
)

+

P
0

(

Ω
x;
Ω
δ

(

x,y

)

)

≥
0.

The proof of the first result is based on arguments of Tarafdar’s theorem involving ψ – monotone bifunction. Moreover, an application to the existence of solution for a differential inclusion is given.
On α∗ –Open Sets in Topological Spaces
Authors: Ali Abbas Nadia M. , Khalil ShukerMahmood
Published: August 2019

In this paper, we introduce a new kind of an α – open sets which is called an α∗ – open sets. Also, we study and discuss some of it’s properties and compare this new notion with some other classes of sets. Moreover, some characterizations, remarks, and counterexamples are given in this work.
Bayesian Panel Data Model with Constraints
Authors: Mohaisen Ameera Jaber , Abdulsamad Saja Yaseen
Published: August 2019

In this paper, we consider a set of linear constraints on the coefficients of the random panel data model. Furthermore, Bayesian approach based on Markov Chain Monte Carlo (MCMC) is employed to making inferences on the model coefficients subject to this constraints.
Fuzzy orbit topological spaces
Authors: Majeed R N , El-Sheikh S A
Published: August 2019

The concept of fuzzy orbit open sets under the mapping f:X → X in a fuzzy topological space (X,τ) was introduced by Malathi and Uma (2017). In this paper, we introduce some conditions on the mapping f, to obtain some properties of these sets. Then we employ these properties to show that the family of all fuzzy orbit open sets construct a new fuzzy topology, which we denoted by τ

F0
coarser than τ. As a result, a new fuzzy topological space (X, τ

F0
) is obtained. We refer to this topological space as a fuzzy orbit topological space. In addition, we define the notion of fuzzy orbit interior (closure) and study some of their properties. Finally, the category of fuzzy orbit topological spaces

F
O
T
O
P

is defined, and we prove it can be embedded in the category of fuzzy topological spaces

F
T
O
P

.
Pole’s decomposition for Burgers’ hierarchy with dynamical systems of poles for solutions of its first and second level
Authors: Malloki Inaam A. , Mutashar Hussein Jameel
Published: August 2019

Singularities (poles in particular) often occur in solutions of partial differential equations. In this paper we consider the Burgers hierarchy family of equations. We prove that this family enjoys poles decomposition property. This property may provide rational solutions with movable poles. We find the motion of these poles as dynamical systems for the first and second level of the hierarchy.
Intuitionistic fuzzy semi d-ideal spectrum
Authors: Abdullah Habeeb Kareem , Hasan Ali Khalid
Published: August 2019

The main purpose of this paper is to study the spectrum of intuitionistic fuzzy semi d-ideal in d-algebra, and the relationship between the topological properties and the algebraic properties of the Spectrum of d-algebra X with respecting to connectedness and separation axioms.
Solving Linear Programming Problem in ℤn by Graphical Method
Authors: Mohammed Hussam A. A. , Khtan Ghassan A. , Alhusiny Amjad H. , Nasralla Ali M.
Published: August 2019

The aim of this paper is to find a new type of linear programming problems depending on the set ℤ
n
(the set of integers modulo n) by using the graphical method. We gave a new definitions that is characterized by the set ℤ
n
. We found that in this set many basic concepts in classic linear programming changed.
A subclass Of spiral – like functions defined by generalized komatu operator with (R-K)integral operator
Authors: Buti R H , Jassim K A
Published: August 2019

In this paper, we introduced a subclass of spiral – like functions defined by generalized Komotu operator with (R – K )integral operator with positive coefficients in the unit disk U. We obtain some new result of this class.
Study of Some Molecular indicators of Dates Palm male Cultivars Phoenix dactylifera L
Authors: M.Handal Israa , Abd Abdul Kareem M. , Al-Najjar Mohammed A. H.
Published: August 2019

.This study was worked in the laboratories of the Center for Palm Research at the University of Basrah. To aim for the genetic DNA of twelve species of date palm males (Gnami Aghder, Dualee, Mosharhr, Akiki, Rabey, Majhool, Gharib, Brahimi, Abu Albutut, Sultani, Amlah and Mogalgal) was identified by using four primers(OPA-09, OPB-09, OPC-09 and OPC-08). The results was showed the presence of clear bands in some species of date palm males such as Rabey, Sultani, Majhool and Brahimi. The OPC-08 primer has the highest number of bunds that was 44 bunds. The OPC-09 primer has the lowest number of bunds that was 24 bunds. The species were divided into two groups in cluster analysis when the Mogalgal and Akiki species were isolated in a group alone. Other species in the group. The lowest genetic distance recorded between the Sultani and Amlah was 0.973. The similarity percentage of Majhool and Dualee was 0.973too.
Effect of Salicylic acid and irrigation intervals on yield components of five genotypes of maize (Zea mays L.)
Authors: S.Al-Sheikh Warqa,a M. , Alwan Abdoun H. , M.Al-Jubouri Abduljassim
Published: August 2019

This study was carried out during spring and fall growing seasons of 2013 in Alfayadah district –Alhindiya Kerbala governorate to study the effect of different concentration of SA, two periods of irrigation as well as their interaction on the yield and its componants of maize plants. Maize cultivars were Almaha, Buhooth, Fajer, Baghdad and Local. Factorial experiment within randomized complete block design ( R.C.B.D) was adopted (5∗2∗5) for SA, irrigation period and cultivars respectively with three replicates. Means were compared using LSD at 0.05 probability level. The 1st addition of SA was at 4-5 true leaves stage and the 2nd addition was one month after the 1st one (50%of male flowering ), Results revealed that SA resulted in a significant increase in dry weight of yield (g) at the concentrations of 200 and 150 mg/L SA 68.00% & 32.10% for both seasons respectively. Higher weight of 100 seeds 5.72% was found at 150 mg / L SA during the fall season. The biological yield was also increased by 10.63% & 15.83% at a concentration of 200 mg/L SA for both seasons respectively. Increasing the intervals of irrigation from 7 to 14 days caused a reduction in dry weight of yield by 21.27% and 15.37% and weight of 100 seeds by 9.62% & 5.84% respectively, as well as reducing the biological yield by 10.55 & %17.32% for both seasons respectively. Maize cultivars showed fluctuations in most studied parameters between spring and fall seasons. The interaction between SA & water interval showed a significant increase of most studied parameters concerning, yield and its components.The interaction between SA and cultivars significantily affected the above mentioned parameters.The interaction between the three factors had a significant effect on the studied traits.
Morphological study of the cattle ticks (Acari: Ixodidae) infesting on sheep in Alnnajaf province-Iraq
Authors: Al-Husseini Maallh T.
Published: August 2019

Present study was conducted during period (March to September 2018) on the cattle ticks (Acari: Ixodidae) that infested on sheep goat ears in Alnnajaf Province. Two species of hard ticks were identifiedBoophilus annulatusandRhipicephalus sanguineus, the speciesB. annulatuswas most predominant than the speciesR. sanguineusat percentages (92.14, 7.85) % respectively. Of these ticks, 105 were female, 38 were males, 124 and 144 were nymph females and males respectively and there were not larva observed. The monthly samples of hard tickB. annulatusrevealed that higher monthly samples during September, but lower monthly samples during June and July. Results of Scanner Electron Microscope analyses showed more distinguished fine characters ofB. annulatusthat differentiated fromR. sanguineus, however both species were lived together on sheep and goat.
A survey of Ectoparasites Infestation in Stray Dogs in Basrah Province / Iraq
Authors: Thamer Nadia K. , Faraj Katherine B.
Published: August 2019

One hundred samples of stray dogs with different ages and sex we examined to investigate the occurrence of ectoparasites, from the period of October 2015 to May 2016. These samples were collected from different regions in Basrah province, the study showed the presence of three types of ectoparasites which are tick Rhipicephallus sanguineus (38.2% ), lice species was Heterodoxus longitrasus (57.35%) and fleas was Stenocephalides canis (4.4 %).

The highest rate was record in Shatt Al-Arab region (100%) while the lowest infestation rate was (35%) in Al-Faw region. Ear and neck region of stray dogs body were infected by ectoparasites more than other region of the body (100 %) respectively total infestation rate was 68%. There were significant difference at (p < 0.01) in the prevalence of all detected ectoparasites in relation to the sexes of dogs. Because of the stray dogs are reservoirs for zoonotic intestinal protozoa and helminthes parasites and ectoparasites should be considered important to public health, so may have an important role in transmission of some disease to human, so this study was designed to investigate ectoparasites in stray dogs in Basrah province.
CuO nano particles synthesized via the mechanichanical method starting with solids state chemichal reactions.
Authors: Abbas Ali Kareem , Abass Suhad Kareem , Bashi Abbas Matrood
Published: August 2019

Copper oxide nanoparticles have been prepared by the reductions of cupper salts in the solid sodium hydroxid in the presence of salisylic acid as a catalyst and NaOH as asstabilizing. The prepared nano particles were charecterized using. FT–IR spectroscopy, X-ray diffraction pattern, and scanning electron microscope, the synthesized copper oxide nanoparticles, have sizes in the range of (5-31)nm and layer thikness 6-9nm depending on the starting materials ( cupper salts).
Plant extract: safe way for fabrication silver nanoparticles
Authors: Al Hindawi Aula M. , Joudah Inam , Hamzah Shaymaa , Tarek Zeyad
Published: August 2019

A safe approach for fabrication silver nanoparticles has established. In this approach a grape fruit peel extract was employed to serve as a capping agent to reduce the aggregation process of Ag nanoparticles. The formation of Ag nanocrystal was confirmed by the color change from yellow to brownish red after 24-hour incubation. The red shift of SPR band position (∼455 nm) compared to the bulk silver (420 nm) indicates the formation of silver nanoparticles. The size and morphology of Ag nanoparticles were characterized by scanning electron microscopy. The SEM images revealed that the prepared Ag nanoparticles have a diameter of 50-70 nm, while the cubic-like shapes are dominated. Fourier Transform Infrared Spectroscopy (FT-IR) was employed to characterize the prepared Ag nanoparticles.
Synthesis of Zinc-Aluminum Layered Double Hydroxides and Application of Adsorption for Nitrate from Water
Authors: Salman Hamida Edan , Hussein Nahlah Jaber
Published: August 2019

Zinc-aluminum Layered double hydroxide was synthesized by copercipitation method in molar ratio Zn/Al 3:1.The prepared layered double hydroxide were characterized by Fourer-transform infrared spectra (FTIR), X-ray diffraction (XRD)and Atomic force microscope (AFM).The synthesized layered double hydroxides were used to study the adsorption of nitrate anion (NO3
−) from water The influence of some parameters on nitrate adsorption, including PH, temperature and adsorption of kinetics. The results showed that the adsorption of nitrate anion (NO3
−) on the surface of the layers (Zn/Al-LDH) increases by increasing the temperature but decreases by increasing the pH and the adsorption of isotherm is following the frindlch equation. The adsorption of kinetics were subjected to modified first grad false the lagergren equation. The thermodynamic parameters, such as (ΔHad, ΔGad ΔSad) clarified that the adsorption on the Zn/Al-LDH is endothermic and spontaneous.
Procaine as a New Coupling Agent for the Spectrophotometric Determination of Fibrates by Diazotization Coupling Reaction
Authors: Kahlol Mohammed K. , Mashkoor Muthana S.
Published: August 2019

A sensitive, selective, rapid, simple and accurate of the spectrophotometry determination of fibrates in bulk and in dosage forms. This method depend on diazotization of primary amine group of procaine hydrochloric acid with sodium nitrate and hydrochloric acid followed by coupling with fibrates in aqueous mildly acidic medium to form azo dye stable orange - yellow. Showed obeyed beers law between 0.2-14 ppm, with molar absorptivity 3.01∗104L.mole−1.cm−1at 385nm. Sandells sensitivity 0.006mg.cm-1, limit of detection (LOD) 0.018ppm and limit of quantitication (LOQ) 0.058 ppm. This method has been successfully applied to determination of fibrates in bulk and in pharmaceutical preparation, tablet with a good recoveries 99.63-100.25 %
Synthesis of polylactic acid using Zn powder under microwave irradiation
Authors: Alwan Aseel F. , khalaf Hussein I.
Published: August 2019

The research involves synthesis of polylactic acid using an available and low cost catalyst (Zn) using microwave irradiation, the synthesized polymer was characterized using FTIR, H1NMR while the molecular weight was calculated using Mark-Hauwink equation, the molecular weight was 12.388 with high purity. This method consumed time compared with traditional methods.
Synthesis a novel Schiff base and Chalcone derivatives compounds and using as flame retardant for unsaturated polyester and epoxy resins
Authors: Jawad Sabrean F. , Adnan Bahjat Shaimaá , AL-Baiati Mohammed N.
Published: August 2019

In this work, seven additives were used to reduced the flammability, namely:(1- (4-hydroxy-3-methoxyphenyl)-3-(2-hydroxy-5-(6-nitrobenzothiazoldiazenyl)phenyl)pr op-2-en-1-one)(Add. I),(3-(2-hydroxy-5-(6-nitrobenzothiazoldiazenyl)phenyl)-1-(4-hydroxyphenyl)prop-2-en-1-one)(Add. II),3-(2-hydroxy-5-(6-nitrobenzohiazoldiaze nyl) phenyl)-1-(4-methoxyphenyl)prop-2-en-1-one(Add. III), 2-((2-hydroxy-4-methyl phenyl)imino)methyl)-4-(6-nitrobenzothiazoldiazenyl)phenol(Add. IV),2-(6-methyl pyridin-2-yl)imino)methyl)-4-(6-nitrobenzothiazoldiazenyl)phenol(Add. V) and 2-(4-chlo rophenyl)imino)methyl)-4-(6-nitrobenzothiazol-2-yl)diazenyl)phenol (Add. VI).

The effects of these additives on flammability of some types of the thermosetting polymers (unsaturated polyester and epoxy resins), have been studied. Sheets of the specimens (resins with different weight percentages of additives), in dimensions (150×150×3) mm were prepared. Two standard test methods used to measure the flame retardation which are: (ASTM: D-2863) and (ASTM: D-635).

Results are obtained from these tests indicated that, additive (Add. VI) has high efficiency as flame retardant, self–extinguishing (S.E.) at the percentage (0.1 %) for unsaturated polyester and the epoxy resins. Also self extinguishing (S.E.) at the percentage (0.1%) for additives (Add. I), (Add. IV) and (Add. V), in unsaturated polyester resin and non-burning occurs in (0.15%) with Additive (Add.VI) and (Add. V) in unsaturated polyester resin but it is occur in (0.2%) with additives (Add. VI) and (Add. V) in epoxy resin.
Spectrophotometric Determination of Some Phenolic Compounds by Formation of Copper(II) Complexes
Authors: Abd-Alrassol Khawla Salman , Jasim Ekhlas Qanber
Published: August 2019

Simple and sensitive spectrophotometric method is described for the determination of phenolic compounds in both in pure form and in pharmaceutical preparations. The method is based on the formation of a new ligand from the reaction between 4-aminoantipyrine with phenolic compounds and then reacts with copper (II) to give a colored complex at room temperature. The maximum absorbance of the prepared complexes were measured at 450,500 and 480 nm for pyridoxine, resorcinol and phloroglucinol complexes respectively. Beer’s law was obeyed in the concentration range of 1.5-20, 2.530 and 2.0-25 μg/ml-1, the molar absorptivity values are 2.4778 x 104,1.6740x104 and 1.7001 x 104 L mol−1cm−1, the Sandal sensitivity values are 0.0501x10−3,0.1740x10−3and 0.1228x10−3μg cm−2 for Pyridoxine, resorcinol and phloroglucinol complexes respectively. The correlation coefficients were 0.9999, 0.9998 and 0.9999, the limits of detection(LOD) were 0.47793, 0.15125 and 0.01434μg ml−1, the limits of quantification were (LOQ) 1.4482, 0.45833 and 0.04347 for pyridoxine, resorcinol and phloroglucinol complexes respectively. The stoichiometry of the complexes formed (1:2) was determined by Job’s continuous variations method and molar ratio method. Furthermore the stability constant (K) and Gibbs free energy ΔG) for the complexes were also calculated. The proposed methods were applied successfully for the determination of phenolic compounds in commercial tablets.
Synthesis and Characterization of Nickel, Palladium, Platinum and Cupper with New Oxazipine Ring
Authors: Abdulameer Jihan Hameed , Abbas Sawsan Khudhair , Mosa Mosa Jaafar
Published: August 2019

Via cycloaddition reaction new seven membered Oxazipine ring was prepared by reaction of Schiff base with phthalic anhydride. Then we use the Oxazipine ring as ligand in this research and complexation with four transition metals Nickel, Palladium, Platinum and Cupper. Many techniques were used to identify the produced compound such as Melting Point, FT-IR, 1H NMR and UV-Vis. Finally and by evidences we conclude the geometry and hybridization of all prepared complexes.
Study of Physical Properties and Sensitivity of Mercury Doped ZnO Thin Films
Authors: Jabbar Rashid Hashim , Hilal Israa Hadi , Ali Huda J.
Published: August 2019

Mercury doped zinc oxide (ZnO:Hg) thin films deposited on glass substrate at 400 °C, prepared by Chemical Spry Pyrolysis (CSP) technique for (3,6, and 9)% doping concentrations, structural properties has been measured by X-Ray Diffraction (XRD) which reveals the structure of (ZnO:Hg) thin films have been found the hexagonal wurtzite structure, crystallite size increases for ZnO:Hg(3%) then decreases with the increase of doping concentration. Atomic Force Microscope (AFM) used to measure granularity distribution, roughness and grain size. Increase of mercury doping leads to increasing of sensitivity for CO2 gas.
Structural Properties of (ZnO- CuO) Doped Fe Thin Films
Authors: Ali Huda J. , Latif L. A. , Fadhel Husham M.
Published: August 2019

(ZnO-CuO)1-x:Fex (x=6,8 and 10%) the thin films (for the same percentage of ZnO-CuO) were deposited on a glass substrate at 300 °C by Chemical Spray Pyrolysis(CSP) technique. X-ray diffraction (XRD) shows that the increasing of Fe leads to decrease the crystalline size. Energy gap values of the doped thin films are larger than undoped thin films. These values are increase with increase of weight ratio doping. The range of energy gap values was within the range (2.6-3.15) eV. The morphological surfaces properties have been studied using Scanning Electron Microscope (SEM) which reveals a homogeneous flowers structure of the films.
Investigation study the ability of superhydrophobic silica to adsorb the Iraqi crude oil leaked in water
Authors: Al-sharuee Israa F. , Mohammed Fatin Hameed
Published: August 2019

A superhydrophobic silica has been utilized as adsorbed the Crude oil leaked during transport in the water of the Iraqi rivers, the capacity absorbing of the aerogel powder for crude oil has been determined. This technique is very important to get rid of environmental pollution caused by the leakage of crude oil in water, which in turn cause death of living beings, this application is an important economic wealth in the country, preliminary tests on water of rivers mixed with the crude oil, by using the aerogel in powder form to clean the water from crude oil, the study depended on two parameters are surface area and contact angle. We found that the increase on surface area lead to increasing on the capacity of adsorbing the crude oil from water, also this result with contact angle.
Modelling vision angles of optical camera zoom using image processing algorithm
Authors: Abbas Heba Kh. , Mohamad Haidar J. , Al-Saleh Anwar H. , Al-Zuky Ali A.
Published: August 2019

A challenge of adding a new feature to the optical properties of a camera is solved in this paper. Image processing gives the possibility to enhance the quality, resolution and details of images fast these days. Within this paper, the introduced algorithm used to determine the vision angles (horizontal and vertical) of a digital camera (Nikon). The quality and efficiency of the camera are evaluated using determine the spatial resolution of the captured images. A scale factor algorithm is used also in this paper. A mathematical model introduced to describe the camera angle vision. This model works with different zoom degrees and different camera-object distances. Thus, a general mathematical equation obtained which describes the real image. The comparisons between the real and resulted images give a strong matching with small error rate.
Improved calculation of fusion barrier distribution
Authors: Najim Adil J , Majeed Fouad A , Al-Attiyah Khalid H
Published: August 2019

The fusion barrier distribution (Dfus) for the systems 16O+144Sm and 16O+208Pb systems had been analyzed in this work to test the benefit of using second derivative of Wong’s formula for fusion cross section to extract Dfus from experimental data. The calculated Dfususing Wong’s formula compared with the result of three-point difference formula, which is the usual method for extract Dfus from experimental cross section. The results showed that this method generated the fusion barrier distribution for both systems in an acceptable approach with respect to the relative position of distribution peaks when it is compared with the theoretical calculations and three-point difference formula.
Approximations of Minimum Approach Distance in Electron Mirroring Phenomena
Authors: Al-Obaidi Hassan N. , Khaleel Imad H. , Mahdi Ali S.
Published: August 2019

The minimum approaches distance of probing electrons in scanning electron microscope has investigated in accordance to mirror effect phenomenon. The analytical expression for such distance is decomposed using the binomial expansion. With aid of resulted expansion, the distribution of trapped electrons within the sample surface has explored. Results have shown that trapped electron distributes with various forms rather an individual one. The domination of any shape is mainly depend on the minimum approaches distance of probing electrons
Study of Sr hexaferrite prepared by ceramic method within x-band waves
Authors: Hadi A F
Published: August 2019

Strontium hexaferrite bulk samples ( SrFe12O19 ) were prepared via ceramic method with the dimensions of { diameter ( D = 3 cm ) and thickness ( t = 2.5 mm )}, and investigated using the vector network analyzer within X-Band waves (frequency bandwidth ( 8-12 ) GHz). Three samples have been sintered from this type of ferrite with three temperatures ( 1000, 1050, 1100 ) °C. The samples which were sintered with 1050°C and 1100°C having best absorption from the other samples, because the ferrite is not completely formed in this temperature and the ferrite was passed with different phases led to the absorption of the microwave. The results of X-ray diffraction ( XRD ) showed compatibility with standard results except for some secondary phases with the ferrite samples.
Investigating the feasibility and reliability of the Pictorial Fit-Frail Scale
Authors: McGarrigle Lisa , Squires Emma , Wallace Lindsay M K , Godin Judith , Gorman Mary , Rockwood Kenneth , Theou Olga
Published: August 2019

Background

the Pictorial Fit-Frail Scale (PFFS) was designed as a simple and practical approach to the identification of frailty.

Objectives

To investigate the feasibility and reliability of this visual image-based tool, when used by patients, caregivers and healthcare professionals (HCPs) in clinical settings.

Design

observational study.

Setting

three outpatient geriatric healthcare settings.

Subjects

patients (n = 132), caregivers (n = 84), clinic nurses (n = 7) and physicians (n = 10).

Methods

the PFFS was administered to all patients. Where available, HCPs and caregivers completed the scale based on the patients’ health. In the geriatric day hospital, the PFFS was completed on admission and administered again within 7–14 days. Time and level of assistance needed to complete the scale were recorded. Intraclass correlation coefficients (ICCs) and 95% confidence intervals (CIs) were used to assess test−retest and inter-rater reliability.

Results

mean time to complete the scale (minutes:seconds ± SD) was 4:30 ± 1:54 for patients, 3:13 ± 1:34 for caregivers, 1:28 ± 0:57 for nurses and 1:32 ± 1:40 for physicians. Most patients were able to complete the scale unassisted (64%). Mean patient PFFS score was 11.1 ± 5.3, mean caregiver score was 13.2 ± 6.3, mean nurse score was 10.7 ± 4.5 and mean physician score was 11.1 ± 5.6; caregiver scores were significantly higher than patient (P < 0.01), nurse (P < 0.001) and physician (P < 0.01) scores. Test−retest reliability was good for patients (ICC = 0.78, [95%CI = 0.67–0.86]) and nurses (ICC = 0.88 [0.80–0.93]). Inter-rater reliability between HCPs was also good (ICC = 0.75 [0.63–0.83]).

Conclusion

the PFFS is a feasible and reliable tool for use with patients, caregivers and HCPs in clinical settings. Further research on the validity and responsiveness of the tool is necessary.
Hypertension Awareness, Treatment, and Control in US Adults: Trends in the Hypertension Control Cascade by Population Subgroup (National Health and Nutrition Examination Survey, 1999–2016)
Authors: Foti Kathryn , Wang Dan , Appel Lawrence J , Selvin Elizabeth
Published: August 2019

Examination of changes in hypertension awareness, treatment, and control (i.e., the hypertension control cascade) by population subgroup can inform targeted efforts to improve hypertension control and reduce disparities. We analyzed 1999–2016 data from the National Health and Nutrition Examination Survey and examined trends across 6-year periods in hypertension awareness, treatment, and control by age, sex, and race/ethnicity. We included 39,589 participants (16,141 with hypertension). Hypertension awareness, treatment, and control increased from 1999 to 2016 among all age groups. However, there were few changes after 2010. Across all time periods, awareness, treatment, and control were higher among younger women (ages 25–44 years) than among younger men, while control was higher among older men (ages ≥65 years) than among older women. Hypertension control was persistently lower for blacks than for whites of all ages, and awareness, treatment, and control were lower among younger Hispanics. There have been few changes in hypertension awareness, treatment, and control since 2010. Disparities in hypertension control by sex highlight the need for effective interventions among younger men and older women. Concerted efforts are also needed to reduce persistent racial/ethnic disparities, particularly to improve treatment control among blacks and to further address gaps at all stages among younger Hispanics.
MsPAC: a tool for haplotype-phased structural variant detection
Authors: Rodriguez Oscar L , Ritz Anna , Sharp Andrew J , Bashir Ali
Published: August 2019

While next-generation sequencing (NGS) has dramatically increased the availability of genomic data, phased genome assembly and structural variant (SV) analyses are limited by NGS read lengths. Long-read sequencing from Pacific Biosciences and NGS barcoding from 10x Genomics hold the potential for far more comprehensive views of individual genomes. Here, we present MsPAC, a tool that combines both technologies to partition reads, assemble haplotypes (via existing software) and convert assemblies into high-quality, phased SV predictions. MsPAC represents a framework for haplotype-resolved SV calls that moves one step closer to fully resolved, diploid genomes.

Availability and implementation

https://github.com/oscarlr/MsPAC.

Supplementary information

Supplementary data are available at Bioinformatics online.
A Call for International Leadership and Coordination to Realize the Potential of Conservation Technology
Authors: Lahoz-Monfort José J , Chadès Iadine , Davies Alasdair , Fegraus Eric , Game Edward , Guillera-Arroita Gurutzeta , Harcourt Robert , Indraswari Karlina , McGowan Jennifer , Oliver Jessica L , Refisch Johannes , Rhodes Jonathan , Roe Paul , Rogers Alex , Ward Adrian , Watson David M , Watson James E M , Wintle Brendan A , Joppa Lucas
Published: August 2019

Advancing technology represents an unprecedented opportunity to enhance our capacity to conserve the Earth's biodiversity. However, this great potential is failing to materialize and rarely endures. We contend that unleashing the power of technology for conservation requires an internationally coordinated strategy that connects the conservation community and policy-makers with technologists. We argue an international conservation technology entity could (1) provide vision and leadership, (2) coordinate and deliver key services necessary to ensure translation from innovation to effective deployment and use of technology for on-the-ground conservation across the planet, and (3) help integrate innovation into biodiversity conservation policy from local to global scales, providing tools to monitor outcomes of conservation action and progress towards national and international biodiversity targets. This proposed entity could take the shape of an international alliance of conservation institutions or a formal intergovernmental institution. Active and targeted uptake of emerging technology can help society achieve biodiversity conservation goals.
What the Public Think about Social Services: A Report from Scotland
Authors: McCulloch Trish , Webb Stephen
Published: August 2019

This article reports on findings of a government-funded research project which set out to understand what the public think about social services in Scotland. The authors were particularly keen to examine issues of legitimacy, trust and licence to operate for social services as they are framed in public perceptions. Drawing on a national online survey of 2,505 nationally representative adults, the findings provide the first and largest empirical data set on public perceptions of social services in Scotland. Data analysis occurred in two stages and employed descriptive statistical measurement and cross-tabulation analysis. The findings indicate that, overall, people in Scotland are positive about social services and the value of their impact on society. Furthermore, they believe that social services perform a valuable public role. These findings are significant for debates surrounding social services and suggest that the Scottish public has a more positive view of social services than social service workers and welfare institutions typically perceive. The findings demonstrate the need to develop a more theoretically rich understanding of the relationships between public perception, legitimacy and social licence in social services, including attention to co-productive models of engagement.
Cerebral differences between dopamine-resistant and dopamine-responsive Parkinson’s tremor
Authors: Dirkx Michiel F , Zach Heidemarie , van Nuland Annelies , Bloem Bastiaan R , Toni Ivan , Helmich Rick C
Published: August 2019

Resting tremor in Parkinson’s disease does not always respond to dopaminergic medication. Dirkx et al. report that dopamine-resistant tremor may be the result of increased cerebellar and reduced somatosensory influences on the cerebellar thalamus, making this key node of the tremor circuit less susceptible to the inhibitory effects of dopamine.
Organization of Propagated Intrinsic Brain Activity in Individual Humans
Authors: Raut Ryan V , Mitra Anish , Marek Scott , Ortega Mario , Snyder Abraham Z , Tanenbaum Aaron , Laumann Timothy O , Dosenbach Nico U F , Raichle Marcus E
Published: August 2019

Spontaneous infra-slow (<0.1 Hz) fluctuations in functional magnetic resonance imaging (fMRI) signals are temporally correlated within large-scale functional brain networks, motivating their use for mapping systems-level brain organization. However, recent electrophysiological and hemodynamic evidence suggest state-dependent propagation of infra-slow fluctuations, implying a functional role for ongoing infra-slow activity. Crucially, the study of infra-slow temporal lag structure has thus far been limited to large groups, as analyzing propagation delays requires extensive data averaging to overcome sampling variability. Here, we use resting-state fMRI data from 11 extensively-sampled individuals to characterize lag structure at the individual level. In addition to stable individual-specific features, we find spatiotemporal topographies in each subject similar to the group average. Notably, we find a set of early regions that are common to all individuals, are preferentially positioned proximal to multiple functional networks, and overlap with brain regions known to respond to diverse behavioral tasks—altogether consistent with a hypothesized ability to broadly influence cortical excitability. Our findings suggest that, like correlation structure, temporal lag structure is a fundamental organizational property of resting-state infra-slow activity.
Quantitative In vivo MRI Assessment of Structural Asymmetries and Sexual Dimorphism of Transient Fetal Compartments in the Human Brain
Authors: Vasung Lana , Rollins Caitlin K , Yun Hyuk Jin , Velasco-Annis Clemente , Zhang Jennings , Wagstyl Konrad , Evans Alan , Warfield Simon K , Feldman Henry A , Grant P Ellen , Gholipour Ali
Published: August 2019

Structural asymmetries and sexual dimorphism of the human cerebral cortex have been identified in newborns, infants, children, adolescents, and adults. Some of these findings were linked with cognitive and neuropsychiatric disorders, which have roots in altered prenatal brain development. However, little is known about structural asymmetries or sexual dimorphism of transient fetal compartments that arise in utero. Thus, we aimed to identify structural asymmetries and sexual dimorphism in the volume of transient fetal compartments (cortical plate [CP] and subplate [SP]) across 22 regions. For this purpose, we used in vivo structural T2-weighted MRIs of 42 healthy fetuses (16.43–36.86 gestational weeks old, 15 females). We found significant leftward asymmetry in the volume of the CP and SP in the inferior frontal gyrus. The orbitofrontal cortex showed significant rightward asymmetry in the volume of CP merged with SP. Males had significantly larger volumes in regions belonging to limbic, occipital, and frontal lobes, which were driven by a significantly larger SP. Lastly, we did not observe sexual dimorphism in the growth trajectories of the CP or SP. In conclusion, these results support the hypothesis that structural asymmetries and sexual dimorphism in relative volumes of cortical regions are present during prenatal brain development.