JOURNAL OF EDUCATION AND SCIENCE

The economic evaluation of the exploration sulfur well depends mainly on the elemental sulfur content
and its associationother factors, so a sample of sulfur rocks extracted by a special excavator for one of
the exploratory wells was studied and in the form of a bore hole rock. The elemental sulfur ratio
reached 12.8% an important ratio in estimating the explored sulfur reservesand through XRD,the
predominant crystalline composition is calcite mineral with hexagonal crystalline form and with a
lesser percentage in orthorhombic crystal sulfur this supports one of the theories that explained the
formation of sulfur.
Also, the mineMishraqsulfur extracted by the underground melting method (known as the Frasch
process) was studied chemically, and the elemental sulfur ratio reached 98.58% and the bituminous
material 1.157%. Also, the SEM scanning electron microscope showed the presence of nanotubes of
size (20-44 nm) belonging to the carb-sulfur compounds in the SEM, which are observed for the first
timein this form.

Glasses with compositions (100-x) % Na2B4O7–x % MO (X=10,20,30,40) where (M) is Ba,
Mg and Ca, are prepared using conventional melt quenching method. X-rays diffractions are
performed. The result of (XRD) confirm the amorphous nature of the samples. The measured density
increases with increasing content of BaO, MgO & CaO in glass network. The position and shifting rate
of absorption edge, optical band energy (Eopt) and band tails energy (Eo) were investigated. The Eopt
and Eo values of all glasses studied in this work were found to be comparable with the values
corresponding to some semiconductors. The structure of the glasses was investigated by means of IR
spectroscopy. It found from the experimental results of IR spectra that the groups (BO3)
-
and (B2O7)
-
are dominant the structure of these glasses. Also It is found that the shifting in band position is small
with increasing of (Ba, Mg, Ca) oxide in the glass network

Coronavirus outbreak occurred in late 2019 and called (COVID-19), caused by SARS-CoV-2
which firstly emerged in Wuhan city/China. This virus mostly attacks the respiratory system and
therefore is more likely to destroy lung tissue and cause pneumonia; although lung is the target tissue
but many organs of COVID 19 patients affect by virus invasion and showed numerous Physiological
consequences. Angiotensin converting enzyme-2 (ACE2) receptors for the virus attachment are
distributed in human's tissues including “lungs, heart, kidneys, intestines, brain and testes” that are
recognized as a possible targets of COVID-19.The vital functions of these organs may impaired with
different levels as a result of viral infection and replication. Patient with type A especially those
formerly have been identified with cardiovascular diseases in particular increased blood pressure, are
more expected to develop acute COVID-19 symptoms. Clot producing disorders with SARS CoV2 infected patients were observed firstly by researchers in China. Thus untreated patients
revealed large arterial pulmonary clots can put permanent pressure on the heart, leading to
cardiac attack. Anxiety about the coronavirus outbreak is extremely common. Therefore, some
individual may showed a huge concern that can disturb their regular life. Stress and fear from infection
can be devastating and cause powerful excitements in children and adults. Therefore this study aims
to shed light on pathophysiological consequences and stressful conditions of COVID-19 in patients
including many of boby organs and ABO system.

Current study tackled potency of MSG and NaNO2 to induce histopathological changes in eye
structure of Swiss-mice and protective role of grape seed-oil against toxicity of these substances may
cause.
In this study, 36 adult mice divided into six groups with control. One group was dosed with MSG
at 9g/kg; another was injected with NaNO2 at 110mg/kg for two months, groups with interference of
two substances, and two groups with interference of grape seeds-oil with each substance.
Results showed emergence of histopathological lesions. In treatment with MSG, there was wide
destruction and damage to photoreceptor cells and outer, inner nuclear layer, separation corneal stroma
and gliosis in optic nerve. In treatment with NaNO2, damage was extensive in components of eye; it
was noted the appearance of roseat pattern in outer, inner nuclear layer, necrosis of outer plexus layer
and contraction of lens fibres. When treating with an interference of MSG and NaNO2, damage was
observed to the surface epithelial tissue of cornea, stroma fibres, reduction in fibroblasts, necrosis in
some cells of ciliary body, and in retina extensive damage was observed in its layers.
When treating by MSG with oil, increase in the inner plexus vasa, nerve fibres, and the inner
nuclear layer was observed and slight damage to the outer pieces of the photoreceptors. When treating
with NaNO2, oil, infiltration of inflammatory cells appeared in the ganglion cells, increased vasa,
edema and hyperplasia in the epithelium of the lens.

This research was included partially purification of lipoxygenase (LOX) from serum of patients with
epilepsy using ammonium sulfate precipitation, dialysis and ion-exchange chromatography with
specific activity (0.751 U / mg), (0.935 U/mg) and (2.60 U/mg) respectively. Optimum conditions for
enzyme activity were determined. The best enzyme activity was showed at 7 minutes of incubation
time, 3 minutes of reaction time, pH = 7, temperature 40Cº and finally substrate concentration
(linoleic acid) was (1.2 mmol/L). By applying Michaelis-Menten and Lineweaver-Burk Equations,
Michaelis-Menten constant (km) and Vmax values were found 0.3 (mM) and (0.9 U/ml)
respectively. Also this study included the effect of some antiepileptic drugs such as valproic acid,
carbamazepine and acetozolamide. Acetazolamide showed the highest inhibition of lipooxygenase
activity)٪96.2(, valproic acid(95.6) and Carbamazapine)٪95.1( . Inhibition type was studied and the
result showed noncompetitive inhibition by using Lineweaver-Burke plot for all above drugs

This research included a study of some biochemical variables of Wister male rats with Induced liver
cancer and a study of the effect of extracts of three parts of Annona muricata, including seeds, core,
and leaves. The animals were divided into eight groups each group had six rats I: Control
group, II treated with Thioacetamide TAA, III treated with Core extract, IV treated with Seed
extract, V treated with Leave extract, VI treated with TAA with core extract, VII treated with TAA
and Seed extract and, VIII TAA with leave extract. In this study, the measurement kit was used to
measure, also Manual methods used to estimate Glutathione, Malondialdehyde, and Paraoxonase. The
results showed a P≤0.05 increase in the tumor-induced rats of Malondialdehyde, Alkaline phosphatase,
Total bilirubin, Aspartate transaminase, Alanine-transaminase, and Alpha-fetoprotein compared to the
control group, while there was a significant decrease in rats which treated with TAA of Total protein,
Glutathione, and Paraoxonase compared to the control group. The results showed a significant decrease
in the levels in tumor-affected animals and treated with seed extract for each Malondialdehyde,
Alkaline phosphatase, Total bilirubin, Aspartate transaminase, Alanine transaminase, and Alphafetoprotein compared to the group of rats affected and treated with the core extract, and leaves, The
results also showed a significant increase in the affected rats which treated with seeds extract for the
level of Total protein, Glutathione, and Paraoxonase compared to the group treated with Core, leaves,
this has been demonstrated by the histological sections of the liver

One of the techniques to increase the value of the software quality is refactoring - the set of activities
for code enhancement through altering inner structure and not altering outer behavior of code. It is a
technique to clean-up the source code that decreasing the opportunities of code faults. Refactoring can
be defined as one of the most significant practices for maintaining the advanced software systems. It
has been indicated by the empirical studies that refactoring has positive effect on maintainability and
understandability of the software systems. This study introduces a literature review of 22 researches
that study and summarize the influence of refactoring and their effect on the attributes of software
quality specially maintainability. Through the review, the study sums the following points: (1)
applying refactoring activities will increase the values of some attributes of quality like
Understandability and maintainability. (2) There are several factors that affect reconstruction activities,
including cohesion, coupling, hiding of information and encapsulation, (3) Refactoring helps to
improve the source code without changing the behavior of the program, (4) refactoring activates can
be applied many times to the source code

The research included a method for preparing a zeolite by utilizing the components of clay
mineral ores (silica and alumina). The two ores (/Local Silica and Bauxite) were studied through
chemical analysis, X-ray diffraction and fluorescence. The results showed that they contained good
quantities of these two substances, which were converted into sodium silicate and sodium aluminate,
then the zeolite was prepared by hydrothermal method at (pH=11) in the presence of the structural
directing agent (tri ethyl amine) then converted to the formula (H-zeolite) to improve its acidic
properties, And then a number of measurements have been done for the prepared zeolite, which is a
thermo gravimetric analysis (TGA) ,it showed that it contains amounts of moisture and crystallization
water as well as its thermal stability at (700°C). As for the results of X-ray diffraction (XRD), it showed
its good crystallization rate and its possession of a crystalline cube system, and the measurement of Xray fluorescence (XRF) showed that it had a high percentage of silicon and aluminum, this indicates a
balanced and equal interaction between these two materials when preparing of zeolite. The
measurement of the scanning electron microscope (SEM) showed the high pore system and the fine
particles that were around (18.17 nm), Finally the measurement of adsorption by the (BET) technique
that explained the prepared zeolite have a high surface area (244.3766 m2
/g).

A chatbot is a computer program which is designed to interact with users and answer questions.
Nowadays, chatbots are one of the most common systems that are used in many fields and by different
companies to achieve different tasks. Cloud computing is gaining increasing interest. A myriad of
fields and applications have been developed based on cloud computing.
In this paper, a college chatbot was developed and implemented to assist students to interact with their
college and ask questions related to faculty, activities, exams, admission, amongst other tasks. Text
similarity algorithms were adopted to achieve the proposed system. More specifically, cosine
similarity and jaccard similarity algorithms were used to find the closest question in the dataset.
Firebase real-time database, which is one of the Google cloud services, was used as a connector
channel between users and the chatbot server.
Experiments were conducted to evaluate the performance of cosine similarity and jaccard similarity
methods, and to compare the results of both. In addition, real-time database was also evaluated as a
chatbot connecter channel.

The research was aimed to used bauxite ore that has a high aluminum minerals which available in AlHussainiyat near al-Anbar district as a source of alumina which it used as a catalyst support after being
loaded with palladium metal , The components of both bauxite ore and prepared catalyst were studied
by X-ray diffraction and fluorescence as well as thermogravimetric analysis (TGA) of the prepared
catalyst , After this the catalyst was used in the treatment of kerosene which is distilled at (150-260C0
)
under different conditions of the (temperature , reaction time and the ratio of catalyst) to know the
optimal reaction conditions that determid by measuring the (FTIR) and chemical analysis. The optimal
conditions: temperature was (250C0
), reaction time was (2hours) and the catalyst ratio was (2%) .The
catalyst appeard the ability to dehydrogenation reaction and reforming to form olefinic and aromatic
compounds. The research also included the study of n-paraffins separated from kerosene samples that
were treating in different temperatures (150,200,250C0 ) using (1HNMR).The results showed the
ability of the catalyst towards catalytic cracking and converting n-paraffins to iso-paraffins

The study included thirty-six isolates of rhizobia bacteria were isolated from the nodules
located on the roots of nine types of leguminous family plants that were planted in four areas of the
city of Mosul for the winter agricultural season for the year 2020-2019, where they studied the
phenotypic and agricultural characteristics of the isolated bacteria in addition to a study of resistance
and sensitivity to the isolates of rhizobia bacteria. The study included ten antibiotics, and resistance
ratios differed between isolates groups, where the highest resistance rate for residual bacteria isolates
was 100% for Nystatin and Amoxicillin, and the lowest resistance was for Tetracycline and
Streptomycin, as it reached 22.2%. As for the rest of the antibiotics, there is a difference between that .
As for heavy metal salts, all the isolates of rhizobia bacteria under study were resistant to both CdCl2
chloride and CoCl2 cobalt by 100%, while their resistance to nickel chloride NiCl2 was 77.7% and the
lowest resistance to heavy metal was mercury chloride HgCl2, reaching 33.3%. The plasmid DNA
content was described for the studied isolates, as the results showed that there are two types of plasmid
DNA bundles, the first type close to large-scale gel drilling called Mega plasmid represents symbiotic
plasmids that carry the genes of contract formation and nitrogen fixation and the second type moves
far from the gel drilling and they are sizes small equal representing non-symbiotic plasmids.

In this research new compounds containing quinazolin-4(3H)-one nucleus linked to
heterocyclic moieties were synthesized using ethyl (4'-oxoquinazolin-3'-yl) acetate (2) as a synthon.
This compound was synthesized via 4-quinazolinone's (1) reaction with ethyl chloroacetate in the
existence of K2CO3 as a base and acetone as a solvent. The ethyl α-(4'-oxoquinazolin-3'-yl) acetate (2)
was converted to the corresponding hydrazide through its reaction with hydrazine hydrate (85 %).
Compound (3) was reacted with two of acyl chlorides to synthesize the diacyl hydrazine compounds
(4,5). The compound (5) was cyclized to the corresponding 1,3,4-oxadiazole (6) in presence of
phosphorous oxychloride. The formyl derivative (7) of the hydrazide (3) was synthesized via its
reaction with formic acid and consequently cyclized by phosphorous oxychloride to the corresponding
1,3,4-oxadiazole (8). The hydrazide (3) was also converted to the thiosemicarbazide derivative (9) by
its reaction with ammonium thiocyanate under acidic conditions. Whereas other substituted
thiosemicarbazide derivatives (10-12) were synthesized by the reaction of hydrazide (3) with organic
isothiocyanate compounds. The resultant compounds (11, 12) were cyclized under basic conditions
(4% sodium hydroxide solution) to give 1,3,4-triazole-2-thiole derivatives (13,14), whereas the
cyclization of compounds (10-12) was performed under the acidic medium (conc. H2SO4) to give 2-
substituted amino-1,3,4-thiadiazoles (15-17). On the other side, the hydrazide's (3) reaction with
isocyanate compounds affords the semicarbazide compounds (18,19). These compounds were cyclized
under the basic condition to afford 1,3,4-triazol-2-ol compounds (20,21). The structures of the
synthesized compounds were corroborated depending on the physical and spectral data

The face is the most critical component which is clear on first sight for an individual. Soft tissue
of the face alongside the fundamental dentoskeletal tissues portrays the facial attributes of a person.
Social affirmation, mental well-being, and self-esteem of an individual are related to physical
appearance. The impression of a charming face is generally passionate with ethnicity, age, sexual
orientation, culture, and character influencing ordinary facial attributes. Strikingly, facial properties
are regularly packed in profile. Orthodontic assurance and treatment orchestrating are continuously
being established on profiles rather than basically on Angle's concept of molar relationship. It was seen
that particular skeletal exact guidelines, proportion of constitution of the soft tissue, and facial solid
position can affect the assessment of the profile. One of the uncommon challenges in orthodontics is
the treatment orchestrating and the leading body of orthognathic careful cases. These cases require a
mix of both orthodontics and orthognathic medical procedure to accomplish an even impediment,
appropriate function, and agreeable facial feel. It is obvious in the literature that there are three main
types of malocclusions: Class I which includes people who have a normal bite, Class II which includes
people who have an overbite, and Class III which includes people who have an underbite. Early
analysis of malocclusion is exceptionally helpful to get legitimate straight teeth. Thus, in this paper we
built up a straightforward PC supported system using image processing techniques that could help
foreseeing teeth impediment. In other words, we take an image of an individual and order it into one
of the three primary types: Class I, Class II, and Class III and predict the post-treatments of Class II
and Class III. This study gives information which can be used in treatment orchestrating by authorities,
for instance, orthodontists, prosthodontists, plastic specialists, and maxillofacial experts, who have the
ability to change the soft tissue facial characteristics.

In this study 10 local isolates of yeast Saccharomyces were obtained from the local markets of
Mosul. The Isolates were diagnosed by morphological and cultural characters in addition to
biochemical tests. the results of the tests showed that they belong to the Saccharomyces cerevisiae
type. Local isolates were tested for resistance to 8 different types of antibiotics and 5 salts of heavy
metals. all isolates were resistant to each of Chloramphenicol, Ampicillin, Tetracycline and
Streptomycin at 100%. As for the Erythromycin antibiotic most of the local isolates were resistant
except for the isolates (SY4, SY5, SY6) As well as Amoxicillin all isolates were resistant except for
(SY4). While the isolates showed sensitivity to Nystatin at 80% and for Flagyl at 90%. The isolates
also showed resistance to all Zinc chloride (ZnCl2), Nickel chloride (NiCl2) and Cobalt chloride
(CoCl2) at 100%, as for mercury chloride(HgCl2) all isolates were resistant except for (SY2) which
showed sensitivity to it. sensitivity of the isolates was clear to Cadmium chloride CdCl2 except for the
isolates (SY3, SY9, SY10).