Strong Reaction Research Articles

Observation on the Gross and Histology of the Exocrine and Endocrine Pancreas in Large White Yorkshire Pig

Background: Islet transplantation is a potential treatment option for selected patients with type 1 diabetes. The limited supply of human islet from cadavers and poor islet yield remains a significant barrier to progress in the field. So, the use of porcine islets holds great promise for large scale application for the transplantation of the islet. The primary aim of this study was to describe the gross and morphological studies of the porcine pancreas to rule out its similarity to human pancreas. Methods: Pancreas was collected from eight apparently healthy Large White Yorkshire pig (6-7 months of age). The gross and morphological studies were analyzed by using different staining techniques. Result: The pancreas appeared as pale pink triangular lobulated gland located along the dorsal aspect of the abdominal cavity behind the stomach having exocrine and endocrine part. Histologically, two types of acinar cell were identified i.e. active and resting acinar cells. The islets were richly vascularized and were separated from the exocrine acini by a thin layer of collagen, elastic and reticular fibers which were seen extending into the interior of the islets. Mainly three types of cells were observed in islets i.e. alpha (A), beta (B) and delta (D) cells. Epithelial duct and secretory cells showed strong positive reaction for both Periodic acid Schiff (PAS) and Alcian Blue (pH-2.5) whereas islets of Langerhans showed moderate activity for both.

Identification and characterization of tissue-specific genes in response to handling stress in topmouth culter (Culter alburnus) kidney, liver and muscle tissues

Topmouth culter (Culter alburnus) is an important freshwater economic fish in China. However, external stress often triggers strong reactions, resulting in low survival rates and reduced productivity. The absence of stress-related genes has significantly limited our understanding of stress response in this fish. Therefore, 85,846,206 high-quality reads were acquired from kidney, liver and muscle cDNA libraries of topmouth culter using illumina sequencing technology in this study. Comparative analysis revealed that 3,158; 409 and 1,952 unigenes were specifically expressed in the kidney, liver and muscle transcriptome, respectively. Additionally, 83 crucial tissue-specific genes were identified within three stress-related GO terms: response to stimulus (GO:0050896), response to stress (GO:0006950) and response to hypoxia (GO:0001666). From these, 18 tissue-specific genes were further isolated. During the short-term stress experiment (two repeated handling stress, including chasing 2 min and netting out of water for 30s), significant changes were observed in the cortisol levels of both the treatment and recovery groups. Furthermore, notable changes were noted in the expression of LCP2, PTK2b and P-selectin genes in the kidney; FABP1, IGFBP1 and CYP4V2 genes in the liver; and MYH10, Myogenin 2 and Toponin C genes in the muscle of topmouth culter in the treatment and recovery groups (P < 0.05). The tissue-specific transcriptome profiles generated in this study offer valuable insights into the molecular and functional mechanisms associated with stress response in topmouth culter. We characterizated genes related to stress response in tissues such as the kidney, liver and muscle, these findings offer novel insights into stress research in fish. We can further explore the breeding of strains with enhanced stress resistance and promote the healthy development of topmouth culter industry.

Design of a LiF-rich solid electrolyte interphase layer through a fluorinated carbon (CFX) complex separator for stable lithium metal batteries

The formation of a stable solid electrolyte interphase (SEI) layer is very important for improving the cycling stability and safety of lithium metal batteries (LMBs). However, since the reactivity of lithium metal anodes (LMAs) is very high, controlling the movement of Li+ at the anode/electrolyte interface remains challenging. In this study, an approach involving coating a fluorine functional-controlled fluorinated carbon (CFX) layer onto a commercial PE separator to form a stable SEI layer was proposed. The strong reaction between the fluorine functional groups constituting CFX and Li+ facilitated the rapid formation of a LiF-rich SEI layer in the resting and initial cycling stages. This initial stable SEI layer promoted a subsequent homogeneous Li+ flux, thus improving the LMA stability. In addition, the mechanism by which the total amount of fluorine and the fluorine functional groups control the Li+ dynamics through the CFX-coated PE separator with controlled fluorine functional groups was used to identify the mechanism by which the total amount of fluorine and the fluorine functional groups provide the advantage of the creation of a stable SEI layer. Therefore, this study contributes to the energy storage field by solving the cycling stability problem related to LMAs and emphasizes that a stable SEI layer can be formed based on the important interface control according to the type of fluorine functional group.

Data Mining and Analysis for Iodinated Contrast Media Adverse Event Signals Based on the Food and Drug Administration Adverse Event Reporting System Database

BackgroundThe purpose of this study was to employ the US Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) database to mine and analyze adverse events related to iodinated contrast media (ICM), explore the characteristics of adverse events (AEs) including their occurrence and correlation strength between AEs and drugs, and to provide valuable insights for clinical use. MethodsThe FAERS database was queried, data from Q1 of 2004 to Q2 of 2023 were extracted, and AE reports targeting 5 ICMs as the primary suspects were collected. Data mining and analysis were carried out on relevant reports using the reporting odds ratio (ROR), proportional reporting ratio (PRR), Bayesian confidence propagation neural network (BCPNN), and empirical Bayes geometric mean (EBGM), while the standardized medical dictionary for regulatory activities (MedDRA) queries (SMQ) was used for systematic classification. ResultsA total of 11,155,106 AE reports were retrieved from FAERS, with 2,412 for ioversol, 2,001 for iohexol, 987 for iodixanol, 1,154 for iopamidol, and 3,835 for iopromide. ICM-induced AE occurrence targeted 21 system organ classes (SOCs). A total of 329 significant disproportionality Preferred terms (PTs) conforming to the 4 algorithms were simultaneously retained. The results revealed that the medium and strong adverse drug reaction (ADR) signals of the 5 ICMs largely focused on “respiratory, thoracic and mediastinal disorders,” “general disorders and administration site conditions,” “immune system disorders,” and “skin and subcutaneous tissue disorders.” Ioversol (log2ROR = 1.21, Padj = 0.034) and iopromide (log2ROR = 1.32, Padj = 0.004) were both correlated with a higher incidence of a significant ADR signal, namely throat irritation, particularly in females. In addition, ioversol and iopromide also suggested that toxic nephropathy (log2ROR = −2.47, Padj < 0.001) and hyperhidrosis (log2ROR = −1.22, Padj = 0.001) were significant ADR signals, especially in males, respectively. ConclusionsWhile the AE distribution of the 5 ICMs was consistent, there were variations in specific ADR signal characteristics, warranting further consideration and exploration.

THE ROLE OF FASHION INNOVATIVENESS, INVOLVEMENT, AND SELF-EXPRESSION IN ENHANCING MUSLIM FASHION BEHAVIOR INTENTION: A CONCEPTUAL PAPER

Muslim fashion contributes to global economic growth by encouraging innovation, entrepreneurship, and investment. Muslim fashion is considered as an industry and a societal phenomenon that has triggered strong reactions from various stakeholders in various fields (socio-cultural, business, law, politics). The literature has reported the role of identity, religion, digital platforms, influencers, and social norms on consumer behavior in the Muslim Fashion industry. Muslim Fashion fosters a homogenous image of the ideal pious, beautiful, and modest Muslim woman that serves to flatten the global differences of the world's Muslims. The increasing number of social media users can shape new marketing trends and strategies, and marketers are starting to consider social media platforms as a primary channel to communicate and interact with customers. Social media platforms have revolutionized the mindset of modern business engagement, producing innovative content to create customer loyalty and expand brand reach. Customers to repurchase a brand because their strong attitude and commitment to innovative products have an impact on brand loyalty. In addition, the level of brand innovation can increase the likelihood of customers making additional purchases. With the presence of products that can express themselves, brands will be loved more and found to increase emotional responses, provide more potential to increase consumer love and encourage post-consumption loyalty behavior.

The thermodynamics of multicomponent high-entropy materials

AbstractHuman development has been based for millennia on manufacturing materials using a conventional alloying strategy of selecting a principal component for the primary property requirement of the material and then adding one or two minor alloying components at relatively low concentrations, either to enhance the primary property or to provide additional secondary properties. We have discovered relatively recently that, with sufficiently large numbers of alloying elements added in sufficiently large concentrations, the configurational entropy of mixing can often become large enough to suppress the formation of brittle compound phases, leading instead to the formation of multicomponent high-entropy solid solutions. In fact, there are literally billions of multicomponent high-entropy single-phase solid-solution materials, with a wide range of exciting new properties, in most cases relatively straightforward to manufacture by conventional processing methods. There seems, however, to be an upper limit to these effects, so that, beyond about ten or twelve alloying components, the inevitable increase in chemical diversity prevents the configurational entropy of mixing from suppressing the increasingly strong chemical reactions between them. This paper discusses in more detail the thermodynamic balance between: (1) increasing configurational entropy and promoting high-entropy solid solutions; and (2) increasing chemical diversity and promoting the formation of brittle compound phases. This is discussed on the basis of regular solution thermodynamics, without the need for more complex, semi-empirical Calphad calculations that can sometimes obscure the underlying key physical and chemical principles. The results show: (1) why large single-phase solid-solution regions are relatively common in multicomponent phase space; (2) why single-phase solid solutions are often favoured over stoichiometric compounds for large numbers of chemically similar components, in concentrated rather than dilute proportions, at high temperatures, and after quenching to room temperature; and (3) the difficulty of detailed thermodynamic analysis in multicomponent materials because of the large numbers of thermodynamic parameters that need to be known and the corresponding lack of underlying thermodynamic measurements.

Research on mass transfer mechanisms due to short-term water-rock interactions between granite cuttings and alkaline NaCl solution and their patterns

Water-rock interactions induced by working fluids in hot dry rock (HDR) reservoirs lead to reservoir damages through mass transfer. Therefore, investigating the mass transfer mechanisms due to the interactions between working fluids and reservoir rocks contributes to minimizing HDR reservoir damages. Drilling fluid is an important working fluid, yet the interactions between drilling fluids and HDR reservoir rocks lack understandings. Here, interaction experiments were conducted using a high-temperature and high-pressure flow reactor under temperatures of 180 °C and 240 °C, a pressure of 24 MPa, and a flow rate of 0.05 mL/min for 7 days. Pure water and an alkaline NaCl solution, which is referred to a HDR reservoir drilling fluid, were prepared to interact with granite cuttings from the HDR reservoir at Qiabuqia site in Gonghe Basin, Qinghai Province, China. Mineral characteristics, mass and chemical changes in the cuttings, solution element content concentrations, micro-morphology and element contents on the cuttings surface, as well as the size of suspending fines in the solutions were determined to reveal the mass transfer mechanisms. The results indicate that the mass transfer mechanisms include mineral reactions and fines migration, and fines migration is the dominating mechanism. The mineral reactions, including feldspar dissolution, quartz dissolution and feldspar alteration, are strong at the front section, while are weak at the end section. At the middle section, the released element contents by mineral reactions form various precipitates, mainly including aluminosilicate, silicate and silica. Strong mineral reactions at the front section lead to fines migration, while the precipitation of Na-bearing minerals at the middle section inhibits fines migration through a coating effect. Suspending fines are identified in the solutions, with a diameter of 100–300 nm, and settled fines are observed at the end section, with a diameter of hundreds of nanometers to a few microns. Simulations of reaction equilibrium show that the precipitation of quartz and biotite increases with a higher NaCl concentration and a lower temperature, while albite changes from dissolution to precipitation as NaCl concentration rises from 6 wt% to 12 wt%. The formation of halite by simulations supports the coating effect. This study provides theoretical basis to minimize HDR reservoir damage induced by working fluids.

The Role of Language in the Effectiveness of Social Advertising

The study aims to analyse and evaluate language's role in shaping social advertising's effectiveness from a linguistic perspective. Methods. The survey method, the method of linguistic analysis and classification of linguistic strategies and techniques, and the Weissman-Ricks Emotional State Inventory (WRESI) were used in the study. The statistical analysis was carried out using the Pearson criterion. The validity of the methods was tested using Cronbach's coefficient. Results. 52% of advertising materials contain emotional words. This result indicates a strong reaction from the audience, which is confirmed by the high Pearson's coefficient (0.83). Words describing the problem were also prevalent in 47% of the advertising materials. They had a high Pearson's coefficient (0.75), which underscores their importance in clearly addressing the problem and strengthening the effectiveness of advertising. The highlighted language means helped to increase the emotional involvement of respondents. Thus, it contributed to the effectiveness of the advertising message. Conclusions. Language plays a crucial role in the effectiveness of social advertising. It conveys information and creates emotional connections with the audience, helping to form and maintain social beliefs and cause changes. This approach increases the effectiveness of social advertising and its impact on society. Prospects. Future research perspectives may include analysing the effect of different language strategies on various audience groups, considering their age categories, social status, cultural characteristics, etc.

Grafts of hydrogel-embedded electrically stimulated subventricular stem cells into the stroke cavity improves functional recovery of mice

The major aim of stroke therapy is to stimulate brain repair and improve behavioral recovery after cerebral ischemia. One option is to stimulate endogenous neurogenesis in the subventricular zone and direct the newly formed neurons to the damaged area. However, only a small percentage of these neurons survive, and many do not reach the damaged area, possibly because the corpus callosum impedes the migration of subventricular zone-derived stem cells into the lesioned cortex. A second major obstacle to stem cell therapy is the strong inflammatory reaction induced by cerebral ischemia, whereby the associated phagocytic activity of brain macrophages removes both therapeutic cells and/ or cell-based drug carriers. To address these issues, neurogenesis was electrically stimulated in the subventricular zone, followed by isolation of proliferating cells, including newly formed neurons, which were subsequently mixed with a nutritional hydrogel. This mixture was then transferred to the stroke cavity of day 14 post-stroke mice. We found that the performance of the treated animals improved in behavioral tests, including novel object, open field, hole board, grooming, and “time-to-feel” adhesive tape tests. Furthermore, immunostaining revealed that the stem cell marker nestin, the neuroepithelial marker Mash1, and the immature neuronal marker doublecortin-positive cells survived in the transplanted area for 2 weeks, possibly due to reduced phagocytic activity and supportive angiogenesis. These results clearly indicate that the transplantation of committed subventricular zone stem cells combined with a protective nutritional gel directly into the infarct cavity after the peak of stroke-induced neuroinflammation represents a feasible approach to improve neurorestoration after cerebral ischemia.

Positive Attributable Visual Sources Attenuate the Impact of Trigger Sounds in Misophonia

Abstract Misophonia is characterized by strong negative reactions to everyday sounds, such as chewing, slurping or breathing, that can have negative consequences for daily life. Here, we investigated the role of visual stimuli in modulating misophonic reactions. We recruited 26 misophonics and 31 healthy controls and presented them with 26 sound-swapped videos: 13 trigger sounds paired with the 13 Original Video Sources (OVS) and with 13 Positive Attributable Visual Sources (PAVS). Our results show that PAVS stimuli significantly increase the pleasantness and reduce the intensity of bodily sensations associated with trigger sounds in both the misophonia and control groups. Importantly, people with misophonia experienced a larger reduction of bodily sensations compared to the control participants. An analysis of self-reported bodily sensation descriptions revealed that PAVS-paired sounds led participants to use significantly fewer words pertaining to body parts compared to the OVS-paired sounds. We also found that participants who scored higher on the Duke Misophonia Questionnaire (DMQ) symptom severity scale had higher auditory imagery scores, yet visual imagery was not associated with the DMQ. Overall, our results show that the negative impact of misophonic trigger sounds can be attenuated by presenting them alongside PAVSs.

Exploration of the reactivities of homemade binary pyrotechnics

Understanding the properties of explosives is the basis for investigating and analyzing explosion cases. To date, due to the strict legal control of standard explosives and initiators, homemade pyrotechnics composed of oxidizers and fuels have become popular explosive sources of improvised explosive devices (IEDs) threatening greatly social stability and personal safety. The reactivity of pyrotechnics strongly depends on their intrinsic characteristics and operating conditions, which determine the efficiencies of heat and mass transfer between the reaction zone and the unreacted zone. Herein, the tests of thermodynamics, pressurization characteristics, and combustion propagation behaviors are conducted to explore the effects of oxidizer species, particle size, and loading density on the reactivity of homemade binary aluminum-based pyrotechnics. The results show that the pyrotechnics with potassium chlorate (KClO3) have the strongest reactivity with the highest pressurization rate (dp/dt) and the shortest combustion duration. Compared with their counterparts based on aluminum microparticles(mAl), pyrotechnics consisting of Al nanoparticles (nAl) possess superior reactivity as expected, which results from the relatively short heat and mass transfer distances. The nAl-based pyrotechnics have a low reaction exothermic peak temperature, great heat release, great aluminothermic reaction completeness, and high produced peak pressure with several orders of magnitude higher pressurization rate. Increasing the loading density of the pyrotechnics over a certain value can change the dominant mode of heat transfer from convective to conduction, sharply decreasing the pressurization characteristics and combustion front propagation velocities (vp). The results of theoretical calculations using the NASA-CEA codes show that loading density can alter the reaction process of the pyrotechnics, leading to a decrease in the predicted pressure per unit mass for Al/KNO3 or Al/AP, and an increase for Al/KClO3. For nAl/potassium nitrate (KNO3), the density is between 1.0 and 1.25 g cm−3, across which dp/dt decreases by one order of magnitude from 0.148 to 0.014 MPa ms−1. In addition, vp decreases by three orders of magnitude from 0.040 to 0.078 m s−1. Distinct pressurization behaviors of nAl/AP are observed at a density of 1.5 g cm−3, while the variation in nAl/KClO3 reactivity fluctuates. These results are beneficial for the damage assessment of scenes caused by an explosion and for inversely calculating charge parameters.

Finland: Political Developments and Data in 2023

AbstractParliamentary elections in 2023 brought in a discourse on debt. Power was passed from the Marin I to the Orpo I government. This was historically the most right‐wing government to date in Finland, whose formation also took historically long but finally united both the populist‐nativist right with the liberal right in the same coalition. The ministerial appointments raised questions among the opposition, and the issue of racism was discussed in connection to the coalition partners. The government's austerity policies sought to limit the power of trade unions, which in turn generated strong reactions. Proposals to limit strike action were faced with opposition. As the three largest parties shifted around, the political centre chose to remain in the opposition and also took issue with the underfunding of social services. The parliamentary polarisation formed a stark contrast to the consensual way in which Finland had approached North Atlantic Treaty Organisation membership, for which a compatible institutional setting was built.

Assessment of Equilibrium between Yttrium and Oxygen in Liquid Iron

Rare earth elements (REEs) are crucial additives in the iron and steel industry. The accurate determination of thermodynamic data is fundamental for applying REEs in steel production; however, this has proven challenging due to their strong reactivity with refractory materials. This study assessed the thermodynamic data for the yttrium–oxygen equilibrium in liquid iron, using high‐temperature experiments with high‐purity Y2O3 crucibles as the smelting container. More reliable equilibrium constants and first‐order interaction coefficients are obtained by minimizing the reactions between yttrium and the crucible while ensuring favorable kinetic conditions. The results confirm that the deoxidation product of yttrium in liquid iron is Y2O3, and the equilibrium constant for the reaction Y2O3(s) = 2[Y] + 3[O] can be expressed as follows: . can be expressed as: . The first‐order interaction coefficient can be presented as: .

Association Between Stress, Neuroinflammation, and Irritable Bowel Syndrome: The Positive Effects of Probiotic Therapy.

Stress refers to an organism's response to environmental threats in normal condition to maintain homeostasis in the body. In addition, strong inflammatory reactions induced by the hypothalamic-pituitary-adrenal (HPA) axis under stress condition during a long time. Reciprocally, chronic stress can induce the irritable bowel syndrome (IBS) which is a well-known gut disorder thereby play an important role in the promotion and pathophysiology of neuropsychiatric diseases. It has been demonstrated that leaky gut is a hallmark of IBS, leads to the entrance the microbiota into the bloodstream and consequent low-grade systemic inflammation. In the current review, we will discuss the mechanisms by which stress can influence the risk and severity of IBS and its relationship with neuroinflammation. Also, the role of probiotics in IBS co-existing with chronic stress conditions is highlighted.

Lichen Scrofulosorum: A Case Report

Lichen Scrofulosorum (LS) is an uncommon tuberculid that was initially described by Hebra in 1868 and typically affects children and young adults. Tuberculids are hypersensitivity reactions in the skin caused by internal Mycobacterium tuberculosis infection. These eruptive lesions result from bacilli spreading through the bloodstream in a host with high resistance to Mycobacterium tuberculosis. Although uncommon, this condition can be a valuable indicator of tuberculosis. Patients with LS typically exhibit a strong tuberculin reaction, concomitant tuberculous involvement of lymph nodes, bone, or other organs, and they show a good response to Antitubercular Therapy (ATT). Hereby, the authors present a case report of a 35-year-old female who presented with multiple papules on her face for five years. A detailed examination revealed no tuberculin reaction, no lymph node involvement, and a good response to ATT. Therefore, LS is a tuberculid that may resemble several other dermatological disorders, necessitating a thorough effort to verify the diagnosis.

Advancements in π-Magnetism and Precision Engineering of Carbon-Based Nanostructures.

The emergence of π-magnetism in low-dimensional carbon-based nanostructures, such as nanographenes (NGs), has captured significant attention due to their unique properties and potential applications in spintronics and quantum technologies. Recent advancements in on-surface synthesis under ultra-high vacuum conditions have enabled the atomically precise engineering of these nanostructures, effectively overcoming the challenges posed by their inherent strong chemical reactivity. This review highlights the essential concepts and synthesis methods used in studying NGs. It also outlines the remarkable progress made in understanding and controlling their magnetic properties. Advanced characterization techniques, such as scanning tunneling microscopy (STM) and non-contact atomic force microscopy (nc-AFM), have been instrumental in visualizing and manipulating these nanostructures, which highlighting their critical role in the field. The review underscores the versatility of carbon-based π-magnetic materials and their potential for integration into next-generation electronic devices. It also outlines future research directions aimed at optimizing their synthesis and exploring applications in cutting-edge technologies.

A Multimodal Metaphorical Representation of Selected Political Cartoons in Nigeria

Complementing studies on the representation of political cartoons which apply metaphorical representation in the portrayal of societal ills, this study explores a multimodal metaphorical representation of selected political cartoons in Nigeria to investigate how cartoonists employed metaphors to represent the current political situation in the country. In the face of the ongoing election petitions and handover of office to the President, among other activities within the political domain in Nigeria, a number of political cartoonists have flooded the online platform with cartoons depicting visual metaphorical representations of happenings within the nation. Such metaphorical representations are semiotically showcased via such cartoons as Go to Court, the Scape Goat, Buhari’s Pet, Corruption, and Original Wahala Received by Me in the portrayal of reality that Nigeria faces today. Given the foregoing, this study combines linguistic and visual modes to form a multimodal representation of the metaphors used in the selected political cartoons. The study adopts a qualitative analysis of 10 political cartoons in Nigeria. It uses Kress and van Leeuwen’s (2006, 2020) approach to multimodality and Forceville’s (1996, 2016) view of visual realisations of conceptual metaphor in constructing meaning to investigate how visual images are constructed to cue conceptual metaphors. The results of the study suggest that Nigerian political cartoons rely mainly on visual metaphors as a means of communicating their messages. In addition, the metaphors used often rely on comic, exaggerated and simplistic depictions to convey their meaning effectively and to stir a strong emotional reaction from the readers. Furthermore, the findings of the study emphasise the importance of metaphorical representation in political cartoons and its implications for public discourse. The results reveal ways to improve the power of the metaphorical messages and the impact of the cartoons on public opinion. The study contributes to the multimodal metaphor research field and reveals the Nigerian public’s underlying beliefs and ideologies.

MARKET REACTIONS TO BOYCOTT ANNOUNCEMENTS: ANALYZING THE IMPACT ON TARGETED COMPANIES IN INDONESIA

This research aims to examine the changes in abnormal returns (AR) and trading volume activity (TVA) before and after the announcement of MUI Fatwa Number 83 of 2023, which targets companies for boycott due to their alleged affiliation with Israel. This study employed an event study approach, using a 5-day event window, 10-day event window, 20-day event window and 30-day event window before and after the Fatwa's announcement to measure abnormal returns and trading volume activity. The analysis began by examining the normality of the data to determine whether it was normally distributed. For normally distributed data, a Paired Sample T-test was used, while the Wilcoxon Signed Rank test was applied to non-normally distributed data. The analysis reveals a significant difference in AR during the initial 5-day window, indicating a strong short-term market reaction driven by investor sentiment and uncertainty. However, for longer windows (10, 20, and 30 days), no significant differences in AR were found, suggesting that the market stabilized as new information was absorbed, consistent with the Efficient Market Hypothesis (EMH) by Eugene Fama (1970). Conversely, TVA showed significant increases across all event windows, indicating sustained investor interest and heightened trading activity. This suggests that while the impact on stock prices was short-lived, the boycott had a lasting influence on trading volume, reflecting continued portfolio adjustments.

The 1991 Gulf War and the role of the Allied Air Force in destroying Iraq

When the Iraqi army invaded Kuwait, it quickly followed by a strong international reaction, each one of the United States and its allies in the West and the Gulf countries expressed their opposition and disapproval to this act of Iraq. Not only the aforementioned countries but also some of those countries that considered themselves friends of Iraq like the former Soviet Union condemned this aggressive act of Iraq. Hence, to prevent Iraq from taking further actions to attack some other Gulf countries, the United States began to send troops to Saudi Arabia. Along with the military preparations, Iraq was repeatedly warned to withdraw its forces from Kuwait, but it ignored these demands and did not withdraw from it. Consequently, an international military operation involving 34 countries could expel Iraqi forces from Kuwait from December 17 th to February 24 th 1991. Again, the Kuwaiti ruling family could return to power. In this study, we want to elucidate that although the air force strikes played a role in defeating the Iraqi army, but it was not the main factor in defeating it. In addition, it is true that during the six weeks of the International Allies’ air strikes, they dropped dozens of tons of bombs and missiles on the Iraqi army, and the Iraqi army was not capable of fighting the Allies ground forces. We have also briefly discussed the Gulf War and the reasons that led the Iraqi army to invade Kuwait, then we have discussed the role of the Allied countries’ air forces in this war, whether the air force played a major role in the Gulf War or not. Finally, the effects of the Gulf War on the Iraqi government have been explicated.

Comparative Morphological and Histochemical Study of Esophagus, in Eurasian Collared Dove (Streptoplia decaocto) and Buzzard (Beuteo beuteo vulpinus)

The study carried out on 28 esophagus specimens of healthy, 14 Eurasian Collared Dove (Streptoplia decaocto) and 14 Buzzard (Beuteo beuteo vulpinus). The aimed, to study the esophagus's morphological also histological. The lumen of esophagus in dove appear narrower and shorter in length than Buzzard as well as the crop as well-developed sac , while the crop in buzzard as longitudinal narrow spindle dilation ,and the present research work was done on the histology and histochemistry of the esophagus in dove and buzzard and found that the esophagus was composed of three segment cervical, crop and thoracic ,histologically, the mucosa of cervical, thoracic part was lined by non-keratinized layer of stratified squamous cells. As well as The esophageal glands were absent in cervical part and crop in dove, whereas in the thoracic part these glands were present and their duct open toward the lumen of the esophagus. The mucosal folds well developed in the cervical portion. Histochemically, the epithelium gland of esophagus showed PAS positive reaction that indicated presence of neutral mucopolysaccharides, the esophageal glands showed strong moderate reaction by (PAS)in cervical and thoracic esophagus as well as in thoracic part in dove. Conclusion the results showed that esophagus was significantly different Morphological and histological between two birds.