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article

Synthesis and spectral analysis of 2-alkyl/aryl amino derivatives of pyrimidine-5-carbonitrile

Bhavana Godhaniya, Jalpa Vadgama, Pragna Thanki, J. J. Modha

World Scientific News > 2022 > 168 > 30-44

A new series of 2-aryl/alkyl amino pyrimidines derivatives has been undertaken by the condensation of 1-ethyl-2-(ethylthio)-1,6-dihydro-6-oxo-4-phenylpyrimidine-5-carbonitrile with different alkyl/aryl amines. The electrophilic substitution reaction taking place between main moiety 1,2,3,4-tetrahydro-4-oxo-6-phenyl-2-thioxopyrimidine-5-carbonitrile and ethyl iodide to give dialkylated compound which...

article

Open and closed support of some star related graphs under addition and multiplication

N. Meena, P. Pavithra, R. Poornima

World Scientific News > 2022 > 168 > 132-146

Let G be a simple graph. supp(v) is defined by ∑_(u∈N(v))▒deg⁡u . supp(G) is defined by ∑_(v∈V(G))▒supp(v) . supp[v] is defined by ∑_(u∈N[v])▒deg⁡u . Supp[G] is defined by ∑_(v∈V[G])▒supp⁡[v] . mult(v) is defined by ∏_(u∈N(v))▒deg⁡u . and mult(G) is defined by ∏_(v∈V(G))▒mult⁡(v) .mult [v] is defined by ∏_(u∈N[v])▒deg⁡u . mult [G] is defined by. ∏_(v∈V[G])▒mult⁡[v] In this paper, open and closed support...

article

NWA 14360 – Nowy meteoryt z Nigru

Łukasz Karwowski, Krzysztof Szopa

Acta Societatis Metheoriticae Polonorum > 2022 > 13 > 47-59

The new meteorite was bought as one single stone in 2019 from a dealer in Niger by Tomasz Jakubowski. The meteorite has fusion crust. It contains chondrules of different types with dominance of barred olivine chondrules, with diameter to 1.5 mm. Px and Ol are 78.1 vol%. of the meteorite mass. Pl is up 11.8 vol%. Average fayalite content is 24.93. Metallic phases are 3.0 vol%. Troilite is up to 5.9...

article

Lessons learned from the examinations of Allende meteorite

Paweł Jujeczko

Acta Societatis Metheoriticae Polonorum > 2022 > 13 > 37-46

Allende is a CV3 carbonaceous chondrite that fell in Mexico on February 8th, 1969. Its Calcium-Aluminium-rich Inclusions (CAIs) revealed to be 4567.72±0.93 Myr old and helped to approximate the age of the solar system. CAIs’ isotopic composition indicate high level of 26Al at the moment of their birth. This led to the hypothesis of a supernova being the triggering event for the formation of the solar...

article

Tektyty i szkliwo impaktowe w świetle badań i odkryć archeologicznych na świecie

Andrzej Kotowiecki

Acta Societatis Metheoriticae Polonorum > 2022 > 13 > 60-66

It should be emphasized that the tektites have been permanently linked in many regions of the Earth with the history of mankind. One of the oldest finds is the Vltavite amulet, which was found in a Cro-Magnon settlement, that is 29,000 years ago. Prehistoric tools made of tektites are found at various archaeological sites around the world. Wherever there are tektites, man has used them in various...

article

Skład chondrytów węglistych jako wyznacznik zasobności planetoid typu C w surowce metaliczne

Konrad Blutstein, Tadeusz A. Przylibski, Katarzyna Łuszczek, Joanna Gruchot

Acta Societatis Metheoriticae Polonorum > 2022 > 13 > 7-26

The chemical composition of carbonaceous chondrites was analysed in terms of the content of selected 24 metals, including noble metals and rare-earth metals. Based on the obtained results, the abundance of C-type asteroids in metallic raw materials was estimated and compared to the concentration of terrestrial deposits and the average content in the Earth’s crust. All the analysed elements, except...

article

Zastosowanie spektroskopii EPR w badaniach jakościowych i ilościowych centrów paramagnetycznych melanin

Ewa Chodurek, Barbara Barbara

Annales Academiae Medicae Silesiensis > 2022 > 76 > 21-30

Spektroskopia elektronowego rezonansu paramagnetycznego (electron paramagnetic resonance – EPR) jest metodą przydatną w biologii i medycynie do badania substancji paramagnetycznych, ich roli w procesach chorobowych oraz terapii. Celem pracy jest przedstawienie podstaw fizycznych spektroskopii EPR oraz dokonanie przeglądu zastosowań metody EPR do badań jakościowych i ilościowych centrów paramagnetycznych...

article

Odróżnianie próbek prawdziwych meteorytów od kamiennych próbek meteorytopodobnych – ważna rola spektroskopii mössbauerowskiej

Patrycja Bogusz, Jolanta Gałązka-Friedman, Katarzyna Brzózka, Martyna Jakubowska, more

Acta Societatis Metheoriticae Polonorum > 2022 > 13 > 27-36

Four stony pieces were delivered to our laboratory for checking if they are fragments of meteorites: first sample (sample No. 1) was a fragment of a rock that fell near Leoncin in Poland, second sample (sample No. 2) was a fragment of a rock found also in Poland in the vicinity of Pultusk, third sample (sample No. 3) was a meteorite specimen bought on the meteorite exchange and fourth sample (sample...

article

A note on some invariants of bistar

K. Murugan, S. Rajeswari, S. Rathnamari

World Scientific News > 2022 > 168 > 117-131

Let G = (V,E) be a graph. An open support of a graph G under addition is defined by ∑_(v∈V(G))▒〖supp(v)〗 and it is denoted by supp(G). Similarly an open support of a graph G under multiplication is defined by ∏_(v∈V(G))▒mult⁡〖(v)〗 and it is denoted by mult(G). A closed support G of a graph under addition is defined by 𝑣∈(𝐺) 𝑠𝑢𝑝𝑝[𝑣] and it is denoted by 𝑠𝑢𝑝𝑝[𝐺]. A closed support of a graph...

article

Spadki meteorytów w latach 2020–2021. Okoliczności i obserwacje

Jarosław Morys, Mateusz Żmija

Acta Societatis Metheoriticae Polonorum > 2022 > 13 > 67-106

The paper presents the circumstances and data accompanying meteorite falls in recent years. The study contains descriptions of 21 falls observed in 2020 and 15 falls in 2021. These phenomena took place on all continents, except the polar regions. In conclusion, this work is a collection of several dozen stories about freshly fallen meteorites. They show many aspects connected with the observations...

article

Wybrane właściwości regolitu i ich istotny wpływ na realizację misji eksploracyjnych

Łukasz Wiśniewski, Gordon Wasilewski, Bartosz Kędziora, Jerzy Grygorczuk

Acta Societatis Metheoriticae Polonorum > 2022 > 13 > 107-119

Interaction with regolith is an essential and unpredictable factor in implementing space exploration missions, affecting their risks and costs. Those apply not only to scientific missions (such as Rosetta, InSight, European Large Logistic Lander, Artemis program missions, and Commercial Lunar Payload Services) but also those oriented towards industrial and large-scale utilization of celestial body...

article

Media Ownership Structure and Content in Nigeria: It’s Threat to National Development

Gbosien Chris Sokoh

World Scientific News > 2022 > 169 > 14-24

The role of media in a democratic system has been widely debated. In recent times, media has been subject to a lot of criticism for the manner in which they have disregarded their obligation to social responsibility. The social responsibilities expected from media in the public sphere were deeply grounded with the acceptance of media as the fourth estate. Today, the media enmeshed in activities that...

article

Columnar liquid crystals based on the lower rim functionalization on resorcin[4]arene core

Suryajit L. Rathod, Vinay S. Sharma, Hitendra A. Mali, Hitesh M. Parekh

World Scientific News > 2022 > 169 > 43-54

Lower rim functionalized resorcin[4]arene derivatives were synthesized by four different n-alkyl chain spacers. All four derivatives have been characterized by using Fourier transform infrared (FT-IR) and Nuclear magnetic resonance (NMR) spectroscopic technique. The liquid crystalline properties of these synthesized compounds were studied by POM investigation. All derivatives exhibited columnar hexagonal...

article

Stability of sorghum (Sorghum bicolor (L.) Moench) landrace collections in Metekel Zone, Western parts of Ethiopia

Netsanet Abera Muluneh, Birkineh Kuru

World Scientific News > 2022 > 169 > 25-42

Agricultural research has repeatedly failed to achieve the required effect for dapter low-income farmers especially in Africa like Ethiopia. Some of the reasons for the failure are due to lack of varieties which can suit to growing environment. As a result, there is a persistent need to look high yielding disease resistant variety to increase production and productivity in sustainable ways. Due to...

article

A short-term survey on menopausal transition in selected urban and rural areas in West Bengal, India

Srinjana Ghosh

World Scientific News > 2022 > 169 > 1-13

Menopause denotes the permanent cessation of menstruation due to loss of ovarian follicular activity resulting in permanent amenorrhoea. It represents transitional reproductive ageing. Dropping of female hormones like Oestrogen and Progesterone levels is noticed during this phase. It may occur either naturally (usually at the age of 45-55 years universally) or by the influence of inducing factors...

article

Haemoptysis as symptom of SARS-CoV-2 infection – case study

Dagmara Galle, Martyna Górka, Gałeczka-Turkiewicz Gałeczka-Turkiewicz, Justyna Kulpa, more

Annales Academiae Medicae Silesiensis > 2022 > 76 > 31-35

Od ponad dwóch lat lekarze i naukowcy zajmują się zagadnieniem COVID-19, czyli choroby wywołanej zakażeniem nowym koronawirusem SARS-CoV-2. Różnorodne objawy i powikłania COVID-19 nadal nie zostały poznane. W arty-kule przedstawiono przypadek 61-letniej kobiety z przewlekłym zapaleniem oskrzeli w wywiadzie, która po przebytym COVID-19 została przyjęta na Oddział Pulmonologiczny Samodzielnego Publicznego...

article

Geochemistry and paleocurrent studies of sandstone facies of the Albian Bima Formation in Kaltungo Inlier, Gongola Sub-Basin, Nigeria: implications for provenance, tectonic setting and paleoweathering condition

Adamu Lukman Musa, Ayuba Rufai, Umaru Ohiene Aliyu, Abdulmalik Nana Fatima, more

World Scientific News > 2022 > 169 > 97-120

This research article presents the resulting appraisal of the paleocurrent analysis and geochemical aspects of the Bima Group aimed at puzzling out the provenance of the sediment, paleotectonic, prevailing paleoclimatic, and paleoweathering conditions that existed during the Albian time in the less studied Kaltungo Inlier section of the Gongola Sub-Basin, Nigeria. A total of twenty-two (22) samples...

article

Spider Faunal Diversity of Adjoining Areas of Tadoba-Andheri Tiger Reserve and Nagzira-Navegaon National Park, Maharashtra, India

Sumana Saha, Dinendra Raychaudhuri

World Scientific News > 2022 > 169 > 55-96

The present study is on the spider fauna of adjoining areas of Tadoba Tiger Reserve, Nagzira Wildlife Sanctuary and Navegaon National Park situated in the state of Maharashtra, India. A total of 39 species and 318 individuals belonging to 30 genera and 14 families are sampled during the months of February & May, 2018 and again in February, 2019. These include 4 species namely Araneus panchganiensis...

article

Students satisfaction with academic services delivery in Nigerian universities

Donald O. Ewanlen

World Scientific News > 2022 > 167 > 108-122

The objective of this study is to investigate undergraduate students’ satisfaction with the quality of academic services in Nigerian universities. This study employs a survey research design. The study was carried out in two states in Nigeria’s South- South geo-political region from which one public and one private university each in Edo and Bayelsa states were conveniently selected. The population...

article

A study on the spatiotemporal distribution of earthworm populations in the academic institution campus of Bethune College, Kolkata, West Bengal

Srinjana Ghosh, Farhana Sultana, Sultana Begum, Shreyoshi Mitra, more

World Scientific News > 2022 > 167 > 123-144

The present article documents the seasonal and site-specific abundance and distribution of earthworms in relation to the physico-chemical properties of soil and associated soil faunal assemblage within the green campus of heritage Bethune College, Kolkata, representing a mosaic of habitat patches characterised with contrasting landusage, vegetation and faunal components. Three (3) species of earthworms...

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Synthesis and spectral analysis of 2-alkyl/aryl amino derivatives of pyrimidine-5-carbonitrile

Open and closed support of some star related graphs under addition and multiplication

NWA 14360 – Nowy meteoryt z Nigru

Lessons learned from the examinations of Allende meteorite

Tektyty i szkliwo impaktowe w świetle badań i odkryć archeologicznych na świecie

Skład chondrytów węglistych jako wyznacznik zasobności planetoid typu C w surowce metaliczne

Zastosowanie spektroskopii EPR w badaniach jakościowych i ilościowych centrów paramagnetycznych melanin

Odróżnianie próbek prawdziwych meteorytów od kamiennych próbek meteorytopodobnych – ważna rola spektroskopii mössbauerowskiej

A note on some invariants of bistar

Spadki meteorytów w latach 2020–2021. Okoliczności i obserwacje

Wybrane właściwości regolitu i ich istotny wpływ na realizację misji eksploracyjnych

Media Ownership Structure and Content in Nigeria: It’s Threat to National Development

Columnar liquid crystals based on the lower rim functionalization on resorcin[4]arene core

Stability of sorghum (Sorghum bicolor (L.) Moench) landrace collections in Metekel Zone, Western parts of Ethiopia

A short-term survey on menopausal transition in selected urban and rural areas in West Bengal, India

Haemoptysis as symptom of SARS-CoV-2 infection – case study

Geochemistry and paleocurrent studies of sandstone facies of the Albian Bima Formation in Kaltungo Inlier, Gongola Sub-Basin, Nigeria: implications for provenance, tectonic setting and paleoweathering condition

Spider Faunal Diversity of Adjoining Areas of Tadoba-Andheri Tiger Reserve and Nagzira-Navegaon National Park, Maharashtra, India

Students satisfaction with academic services delivery in Nigerian universities

A study on the spatiotemporal distribution of earthworm populations in the academic institution campus of Bethune College, Kolkata, West Bengal

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