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Africa is one of the continent’s most vulnerable to the effects of climate change despite contributing the least to global greenhouse gas emissions. The continent has faced many environmental challenges recently, including rising temperatures, altered precipitation patterns, frequent droughts, and extreme weather events. These changes exacerbate existing vulnerabilities in agriculture, water resources, human health, and infrastructure, which are vital for the livelihoods of millions of people. Africa’s population is 60% occupied by agriculture and is threatened by shifting rainfall patterns and extended droughts. Crop yields are increasingly variable, leading to food insecurity and exacerbating poverty. Water scarcity is another pressing concern, as reduced rainfall and more frequent droughts strain already limited water resources, affecting agriculture and access to clean drinking water. Coastal regions are also at risk, with rising sea levels threatening millions living in low-lying areas. In effect, the impacts of climate change extremely affect Africa’s low-level income populations, deepening social and economic inequalities. Africa’s limited financial resources and infrastructure hinder its ability to adapt to these challenges. Nonetheless, Africa also has the potential for resilience through nature-based solutions, renewable energy investments, and regional cooperation. Efforts to enhance climate adaptation, such as sustainable farming practices, improved water management, and climate-smart policies, are critical in building the resilience of communities in combating climate change.

A 21 year-old woman presented with cervical lymphadenopathy and night sweats. Initially, lymphoma was suspected and one of the enlarged lymph nodes was excised in order to make a diagnosis. Histopathological examination revealed Kikuchi’s disease, which is usually a benign syndrome with spontaneous resolution. The disease is very rare, particularly in Caucasian populations. A higher incidence is seen in patients of Asian descent. The patient had persistent swelling of cervical lymph nodes over several months and further lymph nodes were removed as malignant transformation was suspected. However examinations showed only Kikuchi’s disease. There was given no specific treatment. Follow-up appointments were performed biannually and the patient is currently awaiting removal of yet another swollen lymph node on suspicion of relapse of her Kikuchi’s disease.

Obesity is a chronic and metabolic disease with a high increasing prevalence worldwide. It has multifactorial pathogenesis including genetic and behavioral factors [1-5]. Overweight and obesity have been defined and classified by the World Health Organization (WHO) and the National Institutes of Health (NIH) [2,3]. A person with a normal weight has Body Mass Index (BMI) of 18.5-24.9. A person with a BMI under 18.5 is called underweight. An adult having a BMI of 25-29.9 is overweight and pre-obese. Class 1 obesity is defined as a BMI between 30.00-34.99. Class 2 (Severe) Obesity is to have a BMI between 35.00-39.99. Morbid (Extreme, Class 3) obesity is to have a BMI over 40 [1-5]. Obesity is significantly associated with enhanced morbidity and mortality rates. It has also various economic, medical and psychological effects and causes health problems including many systemic diseases, economic costs and burdens, social and occupational stigmatization and discrimination and productivity loss [4-6]. Obesity carries the increased risk of development of many systemic and chronic diseases, including sleep apnea, depression, insulin resistance, Type 2 (adult-onset) diabetes, Gout and related arthritis, degenerative arthritis, hypertension, dyslipidemia, heart disease such as myocardial infarction, congestive heart failure, or coronary artery disease, polycystic ovary syndrome and reproductive disorders, Pickwickian syndrome (obesity, red face and hypoventilation), metabolic syndrome, non-alcoholic fatty liver disease, cholecystitis, cerebrovascular accident, colonic and renal cancer, rectal and prostatic cancer in males, and gallbladder, uterus and breast cancer in females [6-12]. In recent years, some publications reported that obesity has been strongly associated with some ocular diseases including age-related cataract and maculopathy, glaucoma, and diabetic retinopathy [13-16]. The recent reports demonstrated that the central corneal thickness and intraocular pressure were increased while as mean thickness of RNFL and retinal ganglion cell and choroidal thickness (CT) were decreased in the morbidly obese subjects [17-19]. However, another study has reported that CT increased in obese children [20]. On the other hand, a recent study reported that all values of the specific tests used to evaluate the ocular surface were within the normal range [21]. In some experimental studies, it has been demonstrated that obesity may cause retinal degeneration [22,23]. Additionally, in a past meeting presentation, it has been speculated that keratoconus is associated with severe obesity [24]. Teorically, idiopathic intracranial hypertension, and papilledema may also be associated with obesity [25]. Obesity may be also a cause of mechanical eyelid abnormalities such as entropion [26]. However, further investigations are needed to detect the significant relationship between these diseases and obesity. On the other hand, the ocular surgeries of obese patients are difficult compared to normal weight-subjects. The posterior capsule rupture and vitreous loss may easily develop during cataract surgery of these patients because obese patients have an elevated vitreous pressure and operating table cannot often be lowered or surgeon’s chair cannot be elevated sufficiently to provide the clear viewing of the operating area and tissues. So, some different surgical manipulations such as standing phacoemulsification technique and reverse Trendelenburg position have been developed. Additionally, the standing vitrectomy technique has been used for vitreoretinal interventions in morbidly obese patients [27,28]. In conclusion, all obese subjects should be subjected to a completed ophthalmological examination and to relevant clinics for the detection of possible comorbidities and diseases

Photocatalysis has attracted a lot of attention in recent years due to its potential in solving energy and environmental issues. Efficient light absorption and charge separation are two of the key factors for the exploration of high-performance photocatalytic systems, which are generally difficult to obtain from a single photocatalyst. The combination of various materials to form heterojunctions provides an effective way to better harvest solar energy and facilitate charge separation and transfer, thus enhancing photocatalytic activity and stability. This review concisely summarizes the recent development of visible light responsive heterojunctions, including the preparation and performance of semiconductor/semiconductor junctions and semiconductor/metal junctions and their mechanism for enhancing light harvesting and charge separation/transfer. In this regard, this review presents some unitary, binary and ternary CeO2 photocatalysts used for the degradation of organic pollutants. We expect this review to provide the type of guidelines for readers to gain a clear picture of nanotechnology and the fabrication and application of different types of heterostructured photocatalysts.

COVID-19 is a mucoso-respiratory highly contagious disease that has leaded to a tremendous global pandemic wide spreading throughout nations of all continents with successive waves of high morbidities and mortalities. However, several independent vaccine production projects are working ahead for combatting the pandemic, but it is obvious they cannot create a sufficient umbrella that could protect billions of humans in a short term. Indeed, the current approved protocols including frequent cleaning of hands, social distancing and covering face mask are disappointing for their claimed capabilities to efficiently control of the pandemic. As they failed to highlight the critical determining role of air refreshing into indoors that 90 percent of infected people at least involved in enclosed spaces. Instead, Outdoor Access Approach (OAA) can be promising according veterinary medical successful experiences in control of air-borne contagious diseases as control of highly pathogenic avian influenza to become a global pandemic (One Health integration). Along with the above-mentioned protocols. Adaptation of all aspects of ordinary life activities in human societies to guarantee an efficient fresh air flow into enclosed spaces and prevention of the most dangerous air stagnation in them is the core stone of the OAA. This article discusses practical suggestions to attain such situation which can provide a kind of symbiosis with COVID-19` infection major threatening.

Cardiac arrhythmias are frequent complications of the consumption of toxic substances, including cannabis, which can be fatal.We report in this case a patient who developed a cardiac arrhythmia-type focal atrial tachycardia a few moments after the consumption of an important dose of cannabis but which reduced spontaneously and without having administered any medication or an external electric shock.All the rest of the etiological assessment of this arrhythmia was negative and the arrhythmia was linked to the consumption of cannabis which is known to cause these complications.

Urinary bladder distension is traditionally regarded as a sign of intoxication at autopsy, however, to date there is very little literature available to support this hypothesis. The purposes of our study were to correlate alcohol and/or toxicological analysis with calculated urinary bladder volumes and its sensitivity as well as to test the validity by using the radiologically calculated urinary bladder volumes (UBVs) from CT images. The study population was all the postmortem cases involving with blood and/or urine samples sent for alcohol and/or toxicology analysis in 2016 at the Kuala Lumpur Hospital. Out of that 485 cases, there were 127 postmortem cases retrieved with positive alcohol and/or toxicology results Positive toxicology results in this study was referring to drug of abuse (DoA) including amphetamine type stimulants, opiates, cannabis and ketamine. Urinary bladder volume (UBV) was calculated based on the equation used in ultrasonographic volumetry, V=axbxcx 0.5. These 3 parameters correlated well with the UBV and having a strong positive relationship. There was a significant positive correlation at low strength between alcohol concentrations with calculated UBV. There was statistical significant correlation between urinary bladder distension on postmortem CT and cases of intoxication especially more corresponding for positive alcohol detection. The average sensitivity was 35.65% whereby it was slightly lower than those reported in Rohner C, et al. In this study we have deduced that diuretics effect of alcohol was the main reason causing bigger urinary bladder or UBV and was more prominent than the influence of drug of abuse on the urinary bladder sphincter. The distension of urinary bladder should raise suspicion of intoxication, but would not provide information on the quantity of the intoxicating agent due to its significant but poor correlation. It was important to note that intoxication may also be present in cases with low urinary bladder volume. In conclusion, it is vital to consider circumstantial evidence, as well as the presence of additional findings on imaging before suggesting the diagnosis of intoxication based on urinary bladder distension on imaging. Currently, the use of CT bladder imaging should serve as a strong indication that the individual may be intoxicated but should be confirmed by a complete autopsy and a detailed toxicological analysis.

Statement of the problem: Anterior tooth fracture, as a result of traumatic injuries, frequently occurs in dentistry. This leads to necrosis of pulp and periapical pathology. The goal of endodontic and restorative dentistry is to retain natural teeth with maximum function and pleasing esthetics. Purpose of the study: This study aimed at proper reconstruction of extensively damaged teeth through the procedure known as “Biological Restoration.” Materials and methods: Biological post obtained through natural, extracted teeth from another individual represents a low-cost option and alternative technique for the morphofunctional recovery of damaged anterior teeth that provides highly functional and esthetic outcomes. Conclusions: This case report refers to the esthetics and functional recovery of mandibular left lateral incisor after non-surgical healing of periradicular lesion.

Chemical submission is a crime where criminals use substances to impose their will on victims. A 44-year-old woman comes to the Health Center disoriented in the temporal sphere, stating that “she does not remember what happened.” Her brother, the companion who brings her to the health center, says that he has found her in a place he does not usually frequent. The patient missed a bag she was carrying and could not locate her mobile phone. The patient and companion suspect that she may have been “drugged” in order to rob them. Given the suspicion that the patient may have been a victim of chemical submission, the Emergency Service is called to inform that the victim is going to be referred. The detection of biological samples of the substances used for submission is of vital importance.

Rhabdomyosarcoma is a soft tissue pediatric sarcoma composed of cells which show morphological, immunohistochemical and ultrastructural evidence of skeletal muscle differentiation. To date four major subtypes have been recognized: embryonal, alveolar, spindle cell/sclerosing and pleomorphic. All these subtypes are defined, at least in part, by the presence of rhabdomyoblasts, i.e. cells with variable shape, densely eosinophilic cytoplasm with occasional cytoplasmic cross-striations and eccentric round nuclei. It must be remembered, however, that several benign and malignant pediatric tumours other than rhabdomyosarcoma may exhibit rhabdomyoblaststic and skeletal muscle differentiation. This review focuses on the most common malignant pediatric neoplasm that may exhibit rhabdomyoblastic differentiation, with an emphasis on the most important clinicopathological and differential diagnostic considerations.