bluuebunny/crossref_metadata_2025 huggingface dataset:
A digital phoswich detector using time-over-threshold for depth of interaction in PET
Authors: Prout David L , Gu Zheng , Shustef Max , Chatziioannou Arion F
Published: November 2020

We present the performance of a digital phoswich positron emission tomography (PET) detector, composed by layers of pixilated scintillator arrays, read out by solid state light detectors and an application specific integrated circuit (ASIC). We investigated the use of integrated charge from the scintillation pulses along with time-over-threshold (ToT) to determine the layer of interaction (DOI) in the scintillator. Simulations were performed to assess the effectiveness of the ToT measurements for separating the scintillator events and identifying cross-layer-crystal-scatter (CLCS) events. These simulations indicate that ToT and charge integration from such a detector provide sufficient information to determine the layer of interaction. To demonstrate this in practice, we used a pair of prototype LYSO/BGO detectors. One detector consisted of a 19 × 19 array of 7 mm long LYSO crystals (1.36 mm pitch) coupled to a 16 × 16 array of 8 mm long BGO crystals (1.63 mm pitch). The other detector was similar except the LYSO crystal pitch was 1.63 mm. These detectors were coupled to an 8 × 8 multi-pixel photon counter mounted on a PETsys TOFPET2 ASIC. This high performance ASIC provided digital readout of the integrated charge and ToT from these detectors. We present a method to separate the events from the two scintillator layers using the ToT, and also investigate the performance of this detector. All the crystals within the proposed detector were clearly resolved, and the peak to valley ratio was 11.8 ± 4.0 and 10.1 ± 2.9 for the LYSO and BGO flood images. The measured energy resolution was 9.9% ± 1.3% and 28.5% ± 5.0% respectively for the LYSO and BGO crystals in the phoswich layers. The timing resolution between the LYSO–LYSO, LYSO–BGO and BGO–BGO coincidences was 468 ps, 1.33 ns and 2.14 ns respectively. Results show ToT can be used to identify the crystal layer where events occurred and also identify and reject the majority of CLCS events between layers.
Inferring the flow properties of epithelial tissues from their geometry
Authors: Popović Marko , Druelle Valentin , Dye Natalie A , Jülicher Frank , Wyart Matthieu
Published: November 2020

Amorphous materials exhibit complex material properties with strongly nonlinear behaviors. Below a yield stress they behave as plastic solids, while they start to yield above a critical stress Σc. A key quantity controlling plasticity which is, however, hard to measure is the density P(x) of weak spots, where x is the additional stress required for local plastic failure. In the thermodynamic limit P(x) ∼ x

θ
is singular at x = 0 in the solid phase below the yield stress Σc. This singularity is related to the presence of system spanning avalanches of plastic events. Here we address the question if the density of weak spots and the flow properties of a material can be determined from the geometry of an amorphous structure alone. We show that a vertex model for cell packings in tissues exhibits the phenomenology of plastic amorphous systems. As the yield stress is approached from above, the strain rate vanishes and the avalanches size S and their duration τ diverge. We then show that in general, in materials where the energy functional depends on topology, the value x is proportional to the length L of a bond that vanishes in a plastic event. For this class of models P(x) is therefore readily measurable from geometry alone. Applying this approach to a quantification of the cell packing geometry in the developing wing epithelium of the fruit fly, we find that in this tissue P(L) exhibits a power law with exponents similar to those found numerically for a vertex model in its solid phase. This suggests that this tissue exhibits plasticity and non-linear material properties that emerge from collective cell behaviors and that these material properties govern developmental processes. Our approach based on the relation between topology and energetics suggests a new route to outstanding questions associated with the yielding transition.
Efficient implementation of complete and nondestructive Bell-state measurement for trapped ions with reverse engineering
Authors: Ning Yu , Kang Yi-Hao , Shi Zhi-Cheng , Song Jie , Xia Yan
Published: November 2020

In this paper, we put forward a protocol for the complete and nondestructive Bell-state measurement of trapped ions. We show that the four different Bell states of two information carriers can be distinguished using two auxiliary ions with the initial Bell states unchanged after the procedures. The parameter selections are discussed based on the experimentally available parameters, and the robustness against the errors and decoherence are analyzed. The results show that the protocol works well with the selected parameters, and possesses robustness against errors and decoherence. Since the laser pulses to drive the transitions of ions in the procedures are designed via reverse engineering, the control parameters can be flexibly selected under certain boundary conditions, which provides the possibility to find corrective parameters to compensate the errors caused by the decoherence. We hope the protocol can be useful for the Bell-state based quantum information tasks.
Boosting template-based SSVEP decoding by cross-domain transfer learning
Authors: Chiang Kuan-Jung , Wei Chun-Shu , Nakanishi Masaki , Jung Tzyy-Ping
Published: November 2020

Objective. This study aims to establish a generalized transfer-learning framework for boosting the performance of steady-state visual evoked potential (SSVEP)-based brain–computer interfaces (BCIs) by leveraging cross-domain data transferring. Approach. We enhanced the state-of-the-art template-based SSVEP decoding through incorporating a least-squares transformation (LST)-based transfer learning to leverage calibration data across multiple domains (sessions, subjects, and electroencephalogram montages). Main results. Study results verified the efficacy of LST in obviating the variability of SSVEPs when transferring existing data across domains. Furthermore, the LST-based method achieved significantly higher SSVEP-decoding accuracy than the standard task-related component analysis (TRCA)-based method and the non-LST naive transfer-learning method. Significance. This study demonstrated the capability of the LST-based transfer learning to leverage existing data across subjects and/or devices with an in-depth investigation of its rationale and behavior in various circumstances. The proposed framework significantly improved the SSVEP decoding accuracy over the standard TRCA approach when calibration data are limited. Its performance in calibration reduction could facilitate plug-and-play SSVEP-based BCIs and further practical applications.
Influence of pollen source in some qualitative characteristics of date palm fruits propagated by offshoots and tissue culture techniques
Authors: Ameer Abeed Nada Abdel , Taain Dhia Ahmed , Hamza Hamza Abbas
Published: November 2020

The current study was carried out in the private orchard in Kitiabn region in Basrah governorate to study the effect of two male cultivars ( Ghanamy akhdar, Khikri adi) and two methods of date palm propagation (offshoots and tissue culture techniques) on physico-chemical characteristics of date palm fruits during the developing stages (Habbabuk, Kimri and Khalal). Twelve trees of the Barhi cultivar were selected as similar as possible in age (5 years), growth and had the same agricultural practices. Six flower clusters (spadix) were selected from each tree and removed the rest. An experiment was designed according to Randomized Block Design (RCBD) with three replicates and the mean differences were compared by using the least significant difference (L.S.D) test at the probability level of 0.05. Results showed that Barhi date palm pollinated with Khikri adi pollen grains and propagated by offshoots were superior in the most studied characteristics at habbabuk stage. At Kimri stage, the date palms propagated by offshoots and pollinated with Ghanamy akhdar was the best in the most studied characteristics, while at Khalal stage results indicated to the superiority of Ghanamy akhdar pollen grains and tissue culture techniques method in most of the physico-chemical characteristics.
Antimicrobial activity of liquid residues of Cymbopogon citratus oil extracts
Authors: Mohammed Taghreed K , Aqel Nahla , Al-Dujaili Emad A S
Published: November 2020

Cymbopogon citratus (Lemongrass) is a type of medicinal herb that widely used in Asia. This study aims to investigate the antimicrobial activity of liquid residues of ethanolic and aqueous Cymbopogon citratus oil extracts. Residues of ethanolic and aqueous Cymbopogon citratus oil extracts were used to study their antimicrobial activities for Staphylococcus aureus; Staphylococcus epidermidis; Pseudomonas aeruginosa and Candida albicans which were isolated from burned skin of patients suffering from burns at Medical City Hospital/Specialist burns Unit/Baghdad. Minimum inhibitory concentration and minimum bactericidal concentration were measured for all microorganisms using microtitre plates and Resazurin dye by a spectrophotometer at 517 nm. The components of liquid residues were detected by phytochemical tests; and the concentrations of Iodine were determined by Ion Chromatography. The antioxidant activity was measured by using DPPH method. The liquid residues of ethanolic and aqueous extracts of Lemongrass showed antimicrobial effect against all the test microorganisms including Pseudomonas aeruginosa. The ethanolic extraction of Cymbopogon citratus contain Alkaloids, Flavonoids, Glycosides, Phenols, Saponins, Terpenes, Tannins, Fatty acids and Couarins, but no Seroids, volatile oil and Emodins. The Minimum Inhibitory Concentrations of ethanolic extract for Staphylococcus aureus; Staphylococcus epidermidis; Pseudomonas aeruginosa and Candida albicans were 12.5, 12.5, 12.5 and 25µl/mL respectively. The extracts of lemongrass residues due to their phytochemical contents and pharmacological activity seem to be highly effective against some pathogenic microorganisms in the inflamed skin. It can be suggested that these extracts may be used for skin treatment in burned patients infected with pathogenic microorganisms.
Role of MTHFR C667T and MTRR A66G genes polymorphism with thyroid disorders
Authors: Hamed Al-Hassani Owayes Muaffaq
Published: November 2020

Thyroid disorders is the most common disease of the endocrine system. It is estimated that there are approximately 300,000 new cases of thyroid cancer worldwide. Overcome of these are females, the number of cases for thyroid disorders has been infix increasing. The aim of this study was to determine the correlation between MTHFR C677T and MTR A2756G polymorphisms involved in folic acid metabolism with thyroid disorders. We also wanted to investigate the relationship between these genetic variation and risk factors. The blood samples were collected from all cases in two different tubes: first for biochemical analysis, the second have EDTA used for DNA extraction. By Bio drop, DNA concentration and purity were measuring done, In this study be accomplished the correlation between the genetic variation of MTRR A66G gene and MTHRF C677T gene polymorphism with thyroid disorders by ARMS-PCR. In this study show increase the levels of T3 and T4 and decrease the level of TSH in patients with hyperthyroidism compare with control groups, also this table show decrease the levels of T3 and T4 but increase the level of TSH in patients with hypothyroidism compare with healthy peoples. As well as the result showed increase in levels of glucose, cholesterol and triglyceride in patients with hypothyroidism compare with healthy people, Concerning in hyperthyroidism we showed decrease in levels of glucose, cholesterol and triglyceride compare with healthy people. The association between MTHFR C677T and MTRR A66G polymorphisms and the risk of thyroid disorders showed. The 677TT genotype was associated with increased risk for both hypothyroidism (30 %) and hyperthyroidism (10 %) but in different ratio. The 677TC genotype be found in this study have same influence in hypothyroidism (60 %) and hyperthyroidism (60 %) and the 677CC genotype present in result but have different effect on study groups in hypothyroidism (10 %) and hyperthyroidism (30 %). The result also show the genotype ratio of MTRR A66G gene in cases. The GG genotype was associated with thyroid disorders for both hypothyroidism (60 %) and hyperthyroidism (40 %) but in different ratio. The AG genotype be found in this study have same influence in hypothyroidism (20 %) and hyperthyroidism (20 %) and the AA genotype present in result but have different effect on study groups in hypothyroidism (20 %) and hyperthyroidism (40 %). The study has found that the correlation and interaction between MTHFR and MTRR genes polymorphism with thyroid disorders. In addition, we found the genotype (TT) MTHFR C677T polymorphism and the genotype (GG) for MTRR A66G increased risk factors in thyroid disorders.
Study of some immunological indicators of interleukin-9 in Rheumatoid arthritis of Iraqi Patients
Authors: Hassan Ibtesam B. , Kadim Aseel J. , Sultan Ammar A.
Published: November 2020

Rheumatoid arthritis is a chronic disease of the joints and passes through alternating stages of healing and relapse as it has genetic, clinical, pathological, and immunological characteristics. The present study was designed to evaluate the immunological status of some Iraqi patients with rheumatoid arthritis. The present study was conducted on a group of patients reviewed at Baquba Teaching Hospital / Consultation Clinic and from all districts of Diyala Province. For the period 2018-7-20 until 2019-2-1, Blood samples were collected from 50 patients with rheumatoid arthritis aged 29-75 years. On the other hand, 50 other blood samples from healthy individuals were collected as a control group, aged between 25 and 75 years. The study involved investigated the relationship between the immunological detection of the cellular motility of the IL-9 using ELIZA technique. The results of the present study showed that the percentage of female infection with rheumatoid arthritis was 94% higher than that of males by 6%. Also, the results recorded the highest incidence of rheumatoid arthritis in the 45-54 age group at the main of (369.12 ± 7.75) pg / ml and 38%, While the lowest recorded cases of the disease in the age group 65-75 years at the main (350.40 ± 10.73) pg / ml and by 16%. As, the results of the present study showed a significant increase in the level of the concentration of interleukin 9 in the serum of patients with rheumatoid arthritis (362.29 ± 26.86 pg / ml) compared to control group (332.45 ± 27.58) pg / ml at a probability level (P <0.01) Indicates a relationship between interleukin 9 and rheumatoid arthritis.
Synthesis and Bioactivity Screening of New 1, 3-Thiazolidin-4-One Compounds Bearing (Thiadiazols / Triazoles) Moieties
Authors: Ayyash Ahmed Neamah , Hammady Ali Obaid
Published: November 2020

This article deals with synthesis, Identification and biological activity screening of variety 1,3-thiazolidin-4-ones entitled 3,3’-(benzene-1,3-diyldi-1,3,4-thiadiazole-5,2-diyl)bis[(5-methyl-2-(5-substitutedpyridine-2-yl)-1,3-thiazolidin-4-one)] 6a-d and 3,3’-[benzene-1,3-diylbis(5-mercapto-4H-1,2,4-triazole-3,4-diyl)]bis[5-methyl-2-(5-substitutedpyridine-2-yl)-1,3-thiazolidin-4-one], 7a-d. On cyclocondensation reaction of newly Schiff bases and thiolactic acid, some new derivatives of 1,3-thiazolidin-4-ones have been obtained in presence of anhydrous zinc chloride. The elemental analysis, proton NMR spectra of were outlined for structures confirmation. An agreement for the proposed structures of synthesized compounds were approved based on the elemental analysis, IR and 1H NMR spectra. Antimicrobial activity of the newly thiazolidinones have been evaluated with powerful results.
A novel spectral method indirectly to estimate the lead in Cu-Zn-Pb bronze alloy
Authors: Serih Kadhim Hussein
Published: November 2020

Lead is used in many industrial products, including alloys, because of its importance in improving physical and chemical properties. In this study, a sensitive, simple, economical, fast and accurate, an indirect spectral analytical method was developed using Eriochrome Black T as chelating agent without use of separation and isolation to estimate the amount of lead in the Cu-Zn-Pb bronze alloy by using UV-Visible spectrophotometer instrument. The accuracy of the method was 99.97 ± 0.35 and the limits of detection (LOD) and qualification (LOQ) were 0.034 and 0.104 µg ml−1 respectively. The developed method can be applied to water, biological, environmental and fuel samples.
Optical and Structural characterization of spraying ZrO2 and doped B: ZrO2 thin films
Authors: Muhammad Shawki K , Dawood Mohammed O , Ahmed Nagham Y , Hassan Ehssan S , Habubi Nadir F , Chiad Sami S
Published: November 2020

Zirconium oxide (ZrO2) and doped with boron (B) thin films were prepared by Chemical spray pyrolysis CSP. Optical band gap energy of the films decreased from 3.83 to 3.73.55 eV via increase of doping. X-XRD patterns disclosed that films structure were polycrystalline, mixture of monoclinic and tetragonal phases. Atomic force microscopy (AFM) results assure dependence of surface morphology and roughness upon doping.
Steel Slag Waste Applied to Modify Road Pavement
Authors: Abd Alhay Basim A. , Jassim Ahmad K.
Published: November 2020

Steel slag is a waste material that generated during the process of steel making as a byproduct. It is the major industrials waste that generated from electric arc furnaces that accumulation with huge quantities which causes environmental problems for industrial and agricultural sectors. Therefore, it is very important to minimize waste disposal to reduce landfill area and disposal cost as well as their environmental effects. Lately, sustainable engineering has been applied to minimize waste disposal by using byproducts and waste materials to produce useful products. Therefore, in this research, steel slag has been applied as aggregate concrete asphalt to improve the properties of road pavement. It is used with the percentage of 10-40% of the weight of concrete asphalt mix. The results show that there is an improvement in the mechanical properties of the pavement. Marshal stability was increased from 8 to 15 KN by added slag with the percentage of 30-40%. For that reason, steel slag has widely accepted as aggregate in the pavement application as a road surface for heavy duty work.
Studying of some physiological characters of macrophyta in middle of Iraq
Authors: Hadi Sheimmaa Jabbar , Merza Feryal Amin , Abood Ali Hassan
Published: November 2020

Samples from four sites of Al-Abbasiya River middle of Iraq were collected from sediment and macrophyta, for the period from March, 2012 to February, 2013including studying properties of physiological of aquatic macrophyta by selecting seven species of aquatic plants :Phragmites australis Cav., Typha domengensis per. Ceratophyllum demersumL., Elusine indica L Potomogeton. crispus L Potomogeton pectinatus L. and Myrophyllum verticillatum L. Physiological parameters include (Humidity, pH, TDS, Ascorbic acid, salinity, Chlorophyll, Cl).Typha domengensis reveled higher values of physiological characters compare with other studying species.
Using Optimum Index Factor and Determinant Covariance Methods and Compare to PCA on Satellite Images to Determine The Earth’s Landmarks ( Part of Tar- An Najaf and Its Neighbours)
Authors: Yousif Sa’ad R , Shneen Watheq F
Published: November 2020

The research focuses on mixing of Landsat8 ETM+ images for sector of Tar An- Najaf Phenomenon for the sake of gaining the optimum description showing the ground guidelines of the studied area. The optimum Index Factor (OIF) method has ensured that RGB567 represents the preferred mixed bands, where vegetated areas, water and rocks and deposits more obviously distributed. The determinant covariance matrix method stated that RGB457 considered the optimum for spectral resolution. For comparison with Principal Component Analysis, the latter involves PC1,2,3 and shows clear variations that serve the interpreter as a detailed study. Through the study, the best method is the second one.
Automated reduction the speckle noise of the panoramic ultrasound images of Muscles and Tendons
Authors: Jabbar Shaima Ibraheem , Day Charles , Chadwick Edward
Published: November 2020

Removing or reducing speckle noise is one of the main goals to ensure high quality panoramic ultrasound images of muscles and tendons. The presence of noise in the ultrasound image adds a difficulty in the interpretation of the image by clinicians and researchers. In this work, non-liner filter (local adaptive median filter (LAMF1)) has been developed to do a precise detection for speckle noise pixels and reduce its impact on the ultrasound images. It has been applied on three different types of ultrasound images: Based on using set of assessment metrics: Speckle Suppression Index (SSI), Speckle Suppression Mean Preservation Index (SMPI), Enhanced Edge Index (EEI) and Mean Preservation Speckle Suppression Index (MPSSI)), the new local adaptive median filter (LAMF2) has been compared to LAMF1 and Anisotropic Diffusion Filter (ADF). The performance of developed filter (LAMF2) outperformed the performance of LAMF1 as follows: SSI (3%), SMPI (4.79%), EEI (3.7%) and MPSSI (40%). Besides that, ADF has a high level of SSI, SMPI and MPSSI compared to new filter (LAMF2). However, ADF reported better numerical evaluations (EEI) than LAMF2. It is possible to obtain further performance improvements by combining characteristics of both filters (LAMF2 and ADF).
“Sustainability” as a Strategy for the Reconstruction of Distressed Cities in Iraq
Authors: Majeed Marwah Luay
Published: November 2020

The “green building” is a new concept that attributed to the buildings that provide all the conditions and abilities to protect the environment and support it during its reconstruction and living in it and promote the reality to the best. Therefore, the subject is addressed by dividing the research into five topics, the first, discussing the elements and objectives of “sustainability” and the second, the difference between ordinary buildings and “sustainable buildings”. The third discusses with the reconstruction strategy in Iraq, its obstacles, and the afflicted cities. The fourth is the conversion of ordinary buildings into “sustainable buildings”. As for the fifth, the results are singled out. Finally, comes the recommendations and sources. The study concluded that “sustainability” support the “sustainable building”, by taking environmental elements in all stages of construction. It improves the life of the dwelling person, increases worker productivity and reduces energy, material and resource consumption. A balance was achieved between the biosphere and the residents of the building. Iraq today needs to draw a clear strategy for the reconstruction of destroyed areas and cities, taking into account the criteria of “sustainability”, and the criteria of “sustainable design”, to achieve balance and keep the environment clean and livable.
Toeplitz Determinant whose Its Entries are the Coefficients for Class of Non-Bazilevi´c Functions
Authors: Al-Khafaji Saba N. , Al-Fayadh Ali , Hussain Ahmed Hadi , Abbas Sameer Annon
Published: November 2020

The famous Toeplitz matrix is a matrix in which each descending diagonals form left to right is constant, this mean

T
=

(

a

0

a

1

⋯

a

n

a

−
1

a

0

⋯

⋯

⋮

⋮

⋱

⋮

⋯

⋯

a

−
1

a

0

)

. Mathematician, engineers, and physicists are interested into this matrix for their computational properties and appearances in various areas: C
*-dynamical systems [1], dynamical systems [6], operator algebra [2], Pseudospectrum and signal processing [10]. The object of this research is to define a new class Non-Bazilevi´c functions N
δ in unit disk ↁ = {z ∈ ℂ: |z| < 1} related to exponential function. As well as, we obtained coefficient estimates and an upper bound for the second and third determinant of the Toeplitz matrix such that the entries these matrix are belong to this class.
Calculation of Astrophysical S-factor and Thermonuclear Reaction Rates for (p,n) Medium Elements Reactions
Authors: Hussein Mohammed Issa , Abdullah Ramadhan Hayder
Published: November 2020

The cross-sections of (p,n) medium elements reactions as a function of proton energies such as 45Sc(p,n)45Ti, 48Ti(p,n)48V, 51V(p,n)51Cr, 52Cr(p,n)52Mn, 55Mn(p,n)55Fe, 56Fe(p,n)56Co, 59Co(p,n)59Ni, 62Ni(p,n)62Cu, 63Cu(p,n)63Zn, and 66Zn(p,n)66Ga have been interpolated near threshold up to 10 MeV in step of 0.05 MeV using MATLAB program. Weighted averages of cross-sections have been used to calculate the astrophysical S-factor and thermonuclear reaction rates as a function of the center of mass energy, Ec.m. and T9 respectively. Polynomial expressions have been used to fit the calculated astrophysical S-factor and thermonuclear reaction rates to determine the astrophysical S-factor at various Ec.m. and thermonuclear reaction rates at various T9 from best fitting equations with minimum Chi-Square. Empirical formulae of reactions set 45Sc(p,n)45Ti, 48Ti(p,n)48V, 55Mn(p,n)55Fe, 59Co(p,n)59Ni, 66Zn(p,n)66Ga and reactions set 48Ti(p,n)48V, 51V(p,n)51Cr, 59Co(p,n)59Ni, 63Cu(p,n)63Zn, 66Zn(p,n)66Ga have been used to calculate the astrophysical S-factor as a function of Ec.m. and Z and thermonuclear reaction rates as a function of T9 and Z of target nucleus. The results have been compared with the adopted data that have been calculated from the fitting equations which have a good agreement.
Applications of Best Approximations in Soft Locally Convex Spaces
Authors: Johnny Saied A. , Hassan Kholod Mohamed
Published: November 2020

This paper is divided into two parts. In first part, we introduce a new definition of a soft set in certain type of soft topological space which is soft locally convex space,

(

X
∼

A

,

τ
∼

p

,
A
)

and study its some basic properties. In second part, we obtain a results for a soft-non-expansive mappings on a best approximation soft set in

(

X
∼

A

,

τ
∼

p

,
A
)

and we prove some fixed soft point theorems for these mappings. Most of the recommendations for studied were referring to the study of a new characteristics of the fixed soft point in the soft metric spaces. So, we expanded some fixed soft point theorems of soft-non-expansive on a best approximation soft set in

(

X
∼

A

,

τ
∼

p

,
A
)

and establish several relationships between properties these results.
Advanced Analysis of Total Energies of Fullerenes
Authors: Hadawi Majid F.
Published: November 2020

A comparison study has been conducted to compare the accuracy of the used methods, the global and local definitions, in order to calculate the cage radii of fullerene, by which the total energies of fullerene have been analyzed. It was found that the local definition method is more accurate in calculating the cage radii of fullerene than the global definition basing on correlation coefficients and standard deviation values in addition to the agreement of the elasticity theory predictions with local definition method results.
Measurement of the Radon Concentration in Dust for Some Small side areas of Diwaniyah City by using Nuclear Impact detector CR-39
Authors: Obayes Kawthar Hassan
Published: November 2020

In this research, the radon concentrations were measured in the rising dust samples as a result of the movement of trucks and vehicles to some small side areas of the city of Diwaniyah - Qadisiyah Governorate in the advanced nuclear laboratory in the Department of Physics / College of Education for Pure Sciences - Ibn Al-Haytham / University of Baghdad with the technique of nuclear impact detector CR-39, whereas the reagents were exposed for period of 30 - day dust samples, results were recorded for radon concentration of dust samples have values ranging from (287.42 ±38.5 – 743.21± 83.6) Bq / m3 where the results were higher than the internationally accepted limit recorded by (ICRP) which was (200-300) Bq / m3, also it has been calculated the radiation indicators which represented by the annual effective dose (AED) and potential Alpha Energy Concentration (PAEC) whereas the rate of radiation indicators was higher than the internationally accepted limit.
Ozonation and ozone / UV process for industrial wastewater treatment: comparison between two types of wastewater
Authors: Albakrey Lina M. , Alabdly Hussein A. , Jaafar Mahdi Sh.
Published: November 2020

This study investigated the degradation of organic and inorganic matters of wastewater by conventional ozonation and ozone/UV AOPs. The experiments performed with two types of wastewater (synthetic and industrial) having the same chemical oxygen demand COD, varying solution pH and employing UV clearly showed that oxidation during ozonation process was dominated by OH reactions. Conventional ozonation with 2 g/hr maximum ozone dose led to 56% COD removal efficiency in synthetic wastewater, while 52% was estimated from industrial wastewater, both having the same initial COD value of almost 50 ppm and contact time of 80 min. In meanwhile, using UV improved the utilization efficiency of oxidation by reducing the OH scavenging contribution of oxidants, 62% and 70% were the efficiencies of industrial and synthetic respectively in ozone/UV applications. Therefore, combined ozone/AOPs shows better removal efficiency of toxic contaminants than using ozone alone.
Nuclear structure features in 72-80Se isotopes
Authors: Hady Heiyam Najy , Muttalb Mohsin Kadhim
Published: November 2020

Interacting boson model (IBM – 1 and IBM – 2) have been used to perform a whole studying for

34

72
−
80

S
e

isotopes. The low lying positive party states, dynamic symmetries, mixed symmetry states MSS, reducing electric quadruple transition probabilities B(E2), branching ratio, quadruple momentum

Q

2
1

+

, reducing magnetic dipole transition probability B(M1), mixing ratio δ(E2/M1), reducing electric monopole transition probability B(E0), and X(E0/E2) ratio have been investigated. U(5) features are the dominant in

34

72
−
80

S
e

with addition of a
2 small effect of parameter started from

34

74

S
e

to

34

80

S
e

isotopes, energy ratios show that

34

72

S
e

isotopes as the nearest isotopes to typical vibrational limit while

34

74
−
80

S
e

isotopes tend towards the rotational region that lied on U(5) - SU(3), leg of “Casten’s triangle”. Spin and party for many energy levels and electromagnetic transition probability are confirmed. The mixing symmetry states in

34

72
−
78

S
e

isotopes are slowly increased with ζ2 while there is no clear effected in

34

80

S
e

isotope. The calculated branching ratios B(E2), B(M1) mixing ratios δ(E2/M1), B(E0), and X(E0/E2) depend in comparisons with fewer available experimental data. The results are in acceptable agreement; to completed a perfect comparison, more experimental investigations are still needed to these nuclei.

34

72
−
80

S
e

isotopes have small values of electric quadruple moment of

2
1
+

state.
Effect of Gamma Radiation on the Thermal Conductivity of (SiC-Graphite) Nano Composite Materials
Authors: Aobaid Ali K. , Taha Y. , Al_qaisy Salih
Published: November 2020

In the recent years, modern materials have been needed that will have a lasting impact in modern applications. The need for radiation therapy as an important means of modifying nanoscale structures in the manufacture of high performance polymer compounds has important advantages. The aim of this research is to measure the thermal conductivity for epoxy resin as a base material, Nano ceramic powder (SiC) with particle size (64.85nm), and nano Graphite powder with particle size (87.85 nm) are used as a reinforcement materials in composites preparating in different weight fractures (2%, 4%, 6%), while the Hybrid (SiC-Graphit) model are prepared by another weight fractures of (SiC and Graphite), Hand-casting method was used in preparation the research samples. The thermal conductivity tests were measured for all weight fractures in normal conditions (before irradiation). we find the values of thermal conductivity is increased with the increase of weight fractures because of the presence of the reinforcement material, including high thermal conductivity graphite compared to silicon. Tests of the thermal conductivity are measured after irradiation of Gamma rays emitted from the CO60 with energy rate of 1.33MeV and different irradiation doses (6,8,10)KGy. The results show an increase in the thermal conductivity values after the irradiation compared with the results of thermal conductivity in normal conditions. It is worth noting that an atomic force microscope (AFM) has been used to measure the particle size of nanomaterials.
Univalent Harmonic Functions Starlike of the Complex Order Defined by Using Catas Operator
Authors: Kassar Osamah N. , Juma Abdul Rahman S.
Published: November 2020

In this paper, we obtain known the class

T

U
H
*

(
γ
,

n
,

μ
,

l
,

β
)

by working application of the Catas operator and we provide sufficient and necessary conditions for the functions to be in

T

U
H
*

(
γ
,

n
,

μ
,

l
,

β
)

.
ƁD-algebra
Authors: Mahdi Laith Salah , Nouri Adel Hashem
Published: November 2020

In this paper, we introduced a new type of algebra, namely a ƁD-algebra. and some of them its properties are discussed in this type. Also, we introduced some theorems and examples of ƁD-algebra. Its properties differ from the rest of the other types of algebras. We tried to connect it with other types of algebras. We have also introduced a new type of ideals this type of algebra. and have tried to relate it to other ideals through the properties and theorems. Also, we have define a new type of BF algebra, namely transitive ideal and we have introduced some theorems and properties that relate to other types of algebras. Also, we define a new type of filters, is called BF filter and tried to study it and linked it to other concepts in BF algebra. Finally, we introduced the pseudo BF-algebra and some concepts and properties that belong to him and then we studied some of the theorems linking the ideals that exist between them.
STUDY OF SOME KINDS OF ALMOST UNBIASED ESTIMATOR AND PRINCIPLE COMPONENT ESTIMATOR FOR REGRESSION MODEL
Authors: Lattef Mustafa Nadhim , Naif Mustafa Ismaeel
Published: November 2020

In this research, two types of bias estimator were studied in linear regression model which are; (almost unbiased generalized ridge estimator, almost unbiased two-parameter estimator and Modified ridge-type estimator) and (The (r-k) class estimator and modified (r-k) class ridge regression estimator) as a method of repressing the multicollinearity problem on parameter estimation in multiple linear regression models. Also, a simulation analysis was used to test the relative efficiency of certain types of biased estimators as well as the thirty-nine proposed estimated ridge parameters (k) that have been shown in the literature. Moreover, the mean square error was also assigned to study the quality of those estimators in different circumstances and for different correlations. Finally, a practical example was applied to illustrate the obtained results. All proposed estimators of (k) are, according to the results, superior to ordinary least squared estimator (LSE), but there is no ‘optimal’ estimator guarantee that can come out, and the best estimator option will depend on the study conditions.
The construction for the arcs (8,4)-from the two arcs (7,4)-in PG (2,q), q=5
Authors: Qassim Ban Abdulkareem
Published: November 2020

In the current research, the points and lines of the projective plane of order five were constructed, this was followed by examining the arcs designated (k,n)-in this plane. As a result it is concluded that there arcs do exist having set of arcs (8,4)-where the number 8 represented the number of points of the arc while the number 4 represented the largest number of points lie on one line exactly which we obtain there arcs from arcs (7,4)-by using special method we reached it where we study the general properties of (k,n)-arcs in the projective plane PG(2,q).
Tobit regression with Lasso penalty
Authors: Alhamzawi Ahmed
Published: November 2020

A new Bayesian lasso tobit regression method is proposed. The new method is presented as a scale mixture of truncated normal distribution (SMTND) of Laplace distribution with exponential mixing density. The equalitye|β|=eα|β|e(1−α)|β|, is used to write the familiar laplace density as the product of two different Gibbs samplers. Simulation studies are used to illustrate the new algorithm.
Task Scheduling algorithm in cloud computing: A Dynamic Variable Quantum Round robin
Authors: abdul ridah Ban hamed
Published: November 2020

In recent years a Cloud computing became an attentional topic in IT. In cloud computing a Task allocation is a well-known problem. in the heterogeneous environments like CC task scheduling could be either static or dynamic manner to make the cloud computing more efficient and thus it rallies the users satisfaction. Round-robin fashion is most task scheduling algorithm suitable because it is fair but it had a static time slice problem, so in this paper we proposed dynamic quantum to allocate tasks to appropriate resource which will reduce turnaround time, waiting time, responds time and increase throughput attending to achieve high system performance.
Spectrophotometric Determination of tetracycline hydrochloride Using 2,4 –dinitrophenyl hydrazine as Coupling Reagent
Authors: Khaleel Roaa M. , Mohammed Dawooh H.
Published: November 2020

Simple, highly sensitive and accurate spectrophotometric method has been developed to determination of tetracycline hydrochloride in aqueous solution. The proposed method is based on the coupling of tetracycline hydrochloride with 2,4-dinitrophenylhydrazine (2,4-DNPH) in the presence of potassium periodate to form an intense orange color dye at 360nm. Beer’s law is obeyed in the concentration range 0.1-9 μg/ml with the molar absorptivity of 1.262 ×104liter.mol−1.cm−1, with limit of detection (LOD) of 0.0123μg/ml and limit of quantification (LOQ) of 0.0412μg/ml while the RSD value of 0.184 – 0.467 % depending on the concentration. The proposed method was performed successfully to the determination and analysis of tetracycline hydrochloride in pharmaceutical formulations with average recovery of 100.23 %.
Synthesis and modification of some new prodrug polymer based on carboxymethyl cellulose and study some of their application
Authors: Abbas Rizan-H , Mohammed Faris-H
Published: November 2020

This study includes the preparation of new polymers for carboxymethyl cellulose and chitosan with different drugs carrying carboxylic groups (amoxicillin, cephalexin, ampicillin) after conversion into acid chloride derivatives. Synthesis of a new various drug delivery systems (DDS) and smart polymer (SP) could develop to provide us the modification and remarqable improvement the new therapeutic efficiency and safety of drug polymer, it eliminates the toxic side effects medications and diagnosis of the resulting compounds using the FT-IR and HNMR spectrum.
Optimized Programs and Methods Required for the Computational Study of Beta Blockers
Authors: Adnanhatem Oraas , Suhail Falah Shareef Abed , Juda Amer Mousa
Published: November 2020

This study was designed to estimate the optimized conditions for the computational study of quantum characteristics of beta blockers. Carvedilol was selected as a representative of beta blockers. Optimized energies and bonds lengths were measured using different methods including PM3, HF and DFT. A comparison has been made between Gaussian and GAMESS programs. The difference in optimized energy values, and the a pproaching of the bonds angle to the optimal values were studied. The results showed that Gaussian software showed higher priority than GAMEES software, which can be obbserved from the differences in the optimized energy values and the approaching of the bonds angles to the optimal values. the obtained results will bedepeneded in all subscuent studies. IR spectroscopic data were employed to select the most appropriate method. three different methods (PM3, HF and DFT) have been used to measure IR, then compared with experimental values of carvedilol. DFT method showed an advantage over the other methodsBased on all above, DFT (B3LYP/6-311G) has been recommended in the computational chemistry calculations study for carvedilol and resemble beta blockers.
Quantitative Determination of some heavy metals in Lipsticks available in Iraqi market
Authors: Mhemeed Amal H.
Published: November 2020

The U.S. FDA defines cosmetics as “articles intended to be applied to the human body…for cleansing, beautifying, promoting attractiveness, or altering the appearance.” This includes a large number of preparations that have become an integral part of the modern human daily life, who starts to apply and use routinely from early morning. These products usually consist of mixture of chemical components derived from natural or artificial sources that are not free of toxic element traces resulting of combination of compenents themselves or environmental pollution. This materials such as carcinogens or mutagens or metal components may adversely affect human heals. Because of the lack of adequate studies on this subject, in addition to the fact that heavy metals are toxic substances to the human body so this research was aims to determine the concentrations of some heavy metals in some facial cosmetics (lipstick) that are available in the lraq market, either imported or locally manufactured. We collect 30 samples of lipsticks for 5 trademarks every trademark has 6 colors and applying the method of wet digestion and ashing, we weight 1 g of each sample of lipstick, then prepare the sample with high purity nitric acid 65% then drying and placed in the furnace on heat 550 ° and after cooling has been treated by high purity nitric acid again then determine the concentration of each of lead, cadmium, iron, copper, nickel, cobalt, chromium and zinc using flame atomic absorption spectroscopy. The results showed that the concentrations of lead and cadmium, iron, copper, nickel, chromium and zinc in lipstick were higher than the limit value allowed in drinking water, according to the World Health Organization (WHO) and the iron concentration only surpassed the limit value.
Developed RKM Method for Solving Ninth-Order Ordinary Differential Equations with Applications
Authors: Mechee Mohammed S. , Wali Hazim M. , Mussa Khadiga Ben
Published: November 2020

In this study, the development of direct explicit numerical integrators of RK-type for solving a class of ninth-order ordinary differential equations (ODEs) to develop the computational efficiency of the methods. The objective of this paper is to generalize the numerical integrators of RK type for solving classes of ODEs of orders up to eighth-order ODEs. Using the approach of Taylor-expansion, we have derived the order-conditions (OCs) for RKM integrators. Based on these OCs, developed method of ninth-order with five-stage has been derived. The zero stability of RKM integrator is proven. Stability polynomial of RKM integrator for test problem has been introduced. The advantage and the efficiency of the proposed method have been shown clearly using the numerical results which are agree well with analytical solutions due to the proposed method is more efficient and accurate method.
Study impact the latitude on Covid-19 spread virus by data mining algorithm
Authors: Salman Ali Dawood , Ali Daway AL-farttoosi Hasanain , Jkhayyir Kadhim Abbas
Published: November 2020

Corona virus disease (COVID-19) is an infectious caused by a new virus, the virus causes respiratory disease with symptoms such as coughing and fever, causes pneumonia in more severe cases. problem statement: The new Corona virus, or what has become known as “COVID-19”, has spread to more than 79 countries outside China, where the Wuhan region is the epicenter of the virus. Until now researchers not discovered vaccine COVID-19. For prevalence observation there are countries has spread the virus significantly, others in an average and other less, with countries until now where the virus hasn’t spread. proposed solution: This research based on studying the impact geographical latitude on knowing the spread of the COVID 19 in confirmed cases. result: To help scientists and researchers whom still to work on discovery the vaccine, taking importance of the zones the spread of the Covid-19. Using Dataset from Kaggle by classification algorithms linear regression data mining to extract a knowledge from data beneficial.
Bio-synthesis of silver nanoparticles from bacteria Klebsiella pneumonia: Their characterization and antibacterial studies
Authors: Saleh Mona Nima , Khoman Alwan Syoof
Published: November 2020

Epidemics of infectious acute diseases are caused by bacteria that cause various diseases and the increase of antibiotic resistance, which has encouraged drug companies and researchers to search for new antibacterial agents.. the aim of this study, involved the creation, characterization and antibacterial studies of silver nano-particles by using bacterial culture supernatant of bacteria Klebsiella pneumonia the production. We used an eco-friendly extracellular bio-synthetic method for the production of the silver nanoparticles. The biosynthesis SNPs solution were initially categorized by several techniques, the UV-vi. spectrophotometric record absorbance a powerful peak at 432 nm, analysis (FTIR) Fourier Transformer Infrared and (SEM) Scanning Electron Microscope. The SNPs solution showed anti-microbial activity against different types of pathogenic bacteria that used in the present study: Gram negative (Pseudomonas aeruginosa, Escherichia coli), Gram positive: (Staphylococcus aureus, B. cerius).