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Ptolemy Scientific Research Press (PSR Press)is a highly regarded publisher of scientific literature dedicated to bringing the latest research and findings to a broader audience. With a focus on cutting-edge research and technology, Ptolemy Scientific Research Press offers a range of publications catering to professionals, researchers, and student’s needs. Whether looking for information on the latest breakthroughs in physics, biology, engineering, or computer science, you can trust Ptolemy Scientific Research Press to deliver insightful, accurate, and engaging content. With its commitment to quality, accessibility, and innovation, Ptolemy Scientific Research Press is an essential resource for anyone interested in science and technology.

Latest Published Articles

Filters and compactness on small categories and locales

OMS-Vol. 6 (2022), Issue 1, pp. 1 – 13 Open Access Full-Text PDF

Joaquín Luna-Torres

Abstract: In analogy with the classical theory of filters, for finitely complete or small categories, we provide the concepts of filter, $\mathfrak{G}$-neighborhood (short for “Grothendieck-neighborhood”) and cover-neighborhood of points of such categories, to study convergence, cluster point, closure of sieves and compactness on objects of that kind of categories. Finally, we study all these concepts in the category $\mathbf{Loc}$ of locales.

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A prospective study for assessment of cases of dengue fever in pediatric patients

TCMS-Vol. 1 (2021), Issue 4, pp. 10 – 14 Open Access Full-Text PDF

Abhay Bhatnagar, Alok Kumar Deodia, Amit Maheshwari, Sandeep Ahlawat

Abstract:Aim: To assess cases of dengue fever in Pediatric patients.
Methodology: Sixty-eight pediatric cases of dengue of both genders were included in the study. Clinical features and laboratory findings were recorded. Statistical analysis was performed using appropriate tests.
Results: Out of 68 patients, boys were 38, and girls were 30. Common symptoms were fever in 95%, vomiting in 68%, loose stools in 22%, periorbital puffiness in 10% and respiratory distress in 26, pain abdomen in 47% cases. The mean hemoglobin level at admission was 12.6 gm% and at discharge was 12.7gm%. The mean TLC was 56210 cumm of blood at admission, and at discharge was 122452 cumm of blood.
Conclusion: Common symptoms were fever, vomiting, respiratory distress and pain abdomen. Hence careful evaluation of dengue in children is required.

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Correlation between diabetes mellitus and thyroid dysfunction

TCMS-Vol. 1 (2021), Issue 4, pp. 6 – 9 Open Access Full-Text PDF

S. Srinivas

Abstract:Aim: To assess relation between diabetes mellitus and thyroid dysfunction.
Methodology: 105 type II diabetes mellitus patients of both genders were included. Serum TSH (Thyroid Stimulating Hormone), free $T_3$ (Triiodothyronine) and free $T_4$(Thyroxine) were determined in all enrolled patients.
Results: There were 50 males and 55 females in the present study. Age group 21-30 years had 15 patients, 31-40 years had 26, and 41-50 years had 64 patients. Duration of diabetes was 8.4 years, and the level of glycosylated hemoglobin (HbA1C) was 9.2 years. A significant difference was observed (P< 0.05). Serum T3 was increased by 15% and decreased by 4%. Free T3 was increased in 5% and decreased in 13%, and free T4 was increased in 7% and decreased in 5%. There were 20 hypothyroidism and 29 hyperthyroidism patients. Maximum hypothyroidism patients (12) and hyperthyroidism patients (14) were seen with >7 HbA1C levels.
Conclusion: Most of the type II DM patients had hypothyroidism than hyperthyroidism.

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Assessment of cases of pregnancy induced hypertension- A clinical study

TCMS-Vol. 1 (2021), Issue 4, pp. 1 – 5 Open Access Full-Text PDF

Mozafar Khazaei, Ataur Kamal Rashid

Abstract:Aim: To assess cases of pregnancy induced hypertension.
Materials & Methods: Our study included 74 cases of pregnancy-induced hypertension. Parameters such as age, marital status, education, parity, etc., were recorded.
Results: Age group (years) <20 had 30%, 20-24 had 45%, 25-29 had 16%, 30-34 had 5% and >35 had 4% cases. Education level was illiterate in 40% and literate in 60%, and marital status was married in 58%, single in 26% and divorced in 16$, parity was 0 in 24%, 1-2 in 46% and >2 in 30%, gravida was primi in 40% and multi in 60%, previous PIH was seen in 24% patients. Family history of DM was observed in 25%, family history of PIH in 18%, family history of hypertension was seen in 10%, history of asthma was seen among in 8\% and history of kidney disease 30% patients. The difference was significant (P< 0.05).
Conclusion: Common risk factors of pregnancy induced hypertension was family history history of asthma, hypertension, family history of PIH, family history of DM, history of kidney disease.

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Predicting COVID-19 cases, deaths and recoveries using machine learning methods

EASL-Vol. 4 (2021), Issue 4, pp. 43 – 49 Open Access Full-Text PDF

Mohamed Lounis, Farhan Mohammad Khan

Abstract:In the presented work we applied three machine learning techniques to forecast and predict COVID-19 cases, deaths ad recoveries numbers in Algeria for the next six months using data from February 25th, 2020 to April 26th , 2021. These models are represented by the Gaussian process regression (GPR), the support vector machine (SVM) and the decision tree (DT). The plotting results and parameters evaluation pointed out that the Gaussian Process Regression (GPR) has the best performance. Prediction with this model showed that the number of cases, deaths and recoveries will increase in the next months Algeria recording a peak in the month of August and the curve will tend to decrease later.

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Dependence of reflectance on angular deposition and film thickness of ZnS/Ag nanolayers

EASL-Vol. 4 (2021), Issue 4, pp. 26 – 42 Open Access Full-Text PDF

Edward Bwayo, Willy Okullo, Daniel Mukiibi, Denis Okello, Robert Lugolole, Tumps Winston Ireeta

Abstract:This paper presents the spectral reflectance of thermally evaporated ZnS/Ag nanostructures. The coating of ZnS/Ag nanostructures was performed in two steps while varying the film thickness and deposition angle. Silver metal wire (99.99% purity) was heated under vacuum at a pressure of $2.5 \times 10^{-5}$ mBars and deposited on glass slide substrates in the diffusion pump microprocessor vacuum coater (Edwards AUTO 306). Pieces of zinc sulphide (99.99% purity) were heated and deposited to the glass slides previously coated with silver to form the ZnS/Ag/glass composite. The optical reflectance of the samples was studied by the UV/Vis/NIR spectrometer (Perkin Elmer Lambda 19) with UV-WinLab software. The reflectance was measured at angles of incidence between $15^o$ and $75^o$. Spectrophotometric studies showed that reflectance decreased with decrease in film thickness and decreased with increase in deposition angle of silver nanoparticles. The reflectance of ZnS/Ag nanostructures decreased with increase in deposition angle of zinc sulphide.

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BOOK-foundations-of-mathematical-analysis-and-semigroups-theory

BOOK - NULL CONTROLLABILITY OF DEGENERATE AND NON-DEGENERATE SINGULAR PARABOLIC