Critical process parameters evaluation of modified nanoprecipitation method on lomustine nanoparticles and cytostatic activity study on l132 human cancer cell line

This work was focused on identification and evaluation of process parameters of modified nanoprecipitation method, for fabrication of lomustine nanoparticles, with the aim of reducing cancer cell viability at low concentration of lomustine. The parameters controlling particle size, mostly in nanosize, were solvent/nonsolvent composition and emulsification speed of homogenizer along with aqueous phase volume. This controlled particle size is below 250 nm. The stabilizer concentration controlled particle size is within 68 nm ± 0.89 to 137 ± 0.94 nm with PDI 0.06 ± 0.008 to 0.25 ± 0.001. But, the stabilizer addition mode showed more uniform size distribution with PDI 0.085 ± 0.004. Entrapment efficiency was maintained well above 47 ± 0.23%. The drug release pattern was monophasic with controlled release over 24 hrs. In the method used, drug content was affected by ratio of polymer to drug to organic solvent, as well as homogenization speed and time. Percentage viable cells of L132 human lung cancer cell line remained, were only 5% at 100 μg/ml lomustine equivalent PLA nanoparticles.

Archana Mehrotra Archana mehrotra

Dampak kualitas, persepsi konsumen dan brand image terhadap keputusan pembelian produk endorsement

Penelitian ini bertujuan untuk melihat seberapa besar dampak kualitas produk, persepsi konsumen dan brand image terhadap keputusan pembelian produk endorsement pada masyarakat di Medan dengan menggunakan word of mouth sebagai variabel moderasi. Sampel penelitian ini adalah sebesar 100 orang responden dengan teknik analisis data menggunakan analisis jalur (path analysis). Hasil dari penelitian ini menunjukkan kualitas produk, persepsi konsumen dan brand image berpengaruh terhadap keputusan pembelian produk endorsement pada masyarakat di Medan. Lebih lanjut, word of mouth tidak memoderasi kualitas produk terhadap keputusan pembelian dan juga tidak memoderasi persepsi konsumen terhadap keputusan pembelian namun word of mouth memoderasi brand image terhadap keputusan pembelian produk endorsement bagi masyarakat di Medan.

Lila Maria Kaban Lila maria kaban

Linking ontology, epistemology and research methodology

The purpose of this paper is to offer insights that can help researchers to link ontology, epistemology and research methodology. This paper outlines the links among ontology, epistemology and research methodology by exploring ontological, epistemological and methodological perspectives in the research. It discusses how ontological and epistemological issues influence research methodology by providing a clear understanding of different research methodologies based on ontology and epistemology. Furthermore, attention is given to research aspects such as the elements of the research process, research philosophy, research approach, research strategy, the choice of method, and research design

Mukhles m. al-ababneh

A natural language processing approach to determine the polarity and subjectivity of iphone 12 twitter feeds using textblob

Sentiment analysis and opinion mining is a branch of computer science that has gained considerable growth over the last decade. This branch of computer science deals with determining the emotions, opinions, feelings amongst others of a person on a particular topic. Social media has become an outlet for people to voice out their thoughts and opinions publicly about various topics of discussion making it a great domain to apply sentiment analysis and opinion mining. Sentiment analysis and opinion mining employ Natural Language Processing (NLP) in order to fairly obtain the mood of a person’s opinion about any specific topic or product in the case of an ecommerce domain. It is a process involving automatic feature extractions by mode of notions of a person about service and it functions on a series of different expressions for a given topic based on some predefined features stored in a database of facts. In an ecommerce system, the process of analyzing the opinions of customers about products is vital for business growth and customer satisfaction. This proposed research will attempt to implement a model for sentiment analysis and opinion mining on Twitter feeds. In this paper, we address the issues of combining sentiment classification and the domain constraint analysis techniques for extracting opinions of the public from social media. The dataset that was employed in the paper was gotten from Twitter through the tweepy API. The TextBlob library was used for the analysis of the tweets to determine their sentiments. The result shows that more tweets were having a positive subjectivity and polarity on the subject matter.

Dr. Chandrashekhar Uppin Dr. chandrashekhar uppin

“the person with maximum knowledge will win the race”: conceptualizing knowledge in microbusinesses

The concept of knowledge and the process of knowledge sharing in ethnic minority microbusinesses remain neglected in contemporary debates even if their role for economic development is recognized. Drawing on a culturalist view, we explore how knowledge is defined and shared in a local niche market. Thematic analysis of semistructured qualitative interviews with 32 owner managers and 11 employee-managers reveals that, contrary to studies on larger firms, local knowledge creation and sharing narrowly based on ethnic strengths are valuable sources of competitive advantage. Our study has implications for researchers, policymakers, and practitioners in exploring, supporting, and integrating ethnic minority microbusinesses.

Muhibul haq

Problématique d'accès à l'eau potable dans la sous-préfecture de gboguhé (centre-ouest de la côte d'ivoire)

La problématique de l’accès à l’eau potable soulève de nombreux enjeux de développement au regard des impacts qu’elle génère en milieu rural. C’est pourquoi plusieurs organisations internationales œuvrent aux côtés de l’Etat ivoirien afin de garantir un accès durable et sécurisé à cette ressource pour les populations. Cependant, il existe encore des zones en Côte d’Ivoire où les populations continuent de vivre au quotidien des pénuries d’eau potable. C’est le cas de la Sous-Préfecture de Gboguhé où cette problématique entrave considérablement le développement socioéconomique des villages. Partant de ce contexte, cette contribution tente d’analyser les impacts de la pénurie d’eau potable dans cette zone en s’inscrivant dans une perspective socioanthropologique. Pour ce faire, elle se base sur une approche essentiellement qualitative, mobilisant les techniques de revue de littérature, d’entretiens semi-directifs et d’observations directes pour la production de données. L’étude révèle que la pénurie d’eau potable dans la sous-préfecture de Gboguhé est un facteur de vulnérabilité chez les populations locales au regard des impacts sociaux, économiques, sanitaires et territoriaux qu’elle entraîne.

Dr. Kabran Aristide DJANE Dr. kabran aristide djane

The interplay of emt and stemness driving malignant transformation of oral submucous fibrosis

Background: Oral submucous fibrosis (OSF) is a persistent oral mucosal condition that carries an elevated risk of undergoing malignant transformation. Our objective was to elucidate the involvement of epithelial-tomesenchymal transition (EMT) in OSF and its progression to malignancy by studying a panel of EMT markers, thereby understanding the molecular mechanisms. Methods: An immunohistochemical analysis was done to detect the presence of E-cadherin, N-cadherin, pancytokeratin (PanCK), vimentin, α-SMA (alpha-smooth muscle actin), and CD44 in a total of 100 tissue samples. These samples comprised 40 cases of OSF, 20 cases of oral squamous cell carcinoma associated with OSF (OSFSCC), and 40 cases of oral squamous cell carcinoma (OSCC). A whole transcriptomic analysis was performed on a group of seven matched samples encompassing NOM, OSF, OSFSCC, and OSCC. Results: We observed significantly decreased expression of E-cadherin and PanCK, while N-cadherin, vimentin, α-SMA, and CD44 showed significantly higher expression in OSFSCC and OSCC as compared to OSF, both at protein and RNA levels. CD44 expression was noticeably higher in OSFSCC (p < 0.001) than in OSCC. Conclusion: Downregulation of epithelial markers with concomitant upregulation of mesenchymal and stem cell markers suggests the potential role of EMT and stemness in accelerating the pathogenesis and malignant transformation of OSF. The high levels of CD44 expression seen in OSFSCC indicate a high propensity for aggressiveness and acquisition of stem-like characteristics by the cells undergoing EMT.

Mohit Sharma Mohit sharma

A study on mechanical properties and durability of vermiculite concrete

Concrete is a material which is used in construction. Weight of concrete plays a major role in the construction industry. If the weight of the concrete is increased, it will pose more structural problems on the later date of construction. It also increases the cost of construction, without any specific benefit. So if lightweight concrete is used, it not only reduces cost of construction, but also not poses any structural problems unnecessarily. Light weight concrete also aids workers in smooth handling of materials. In this study, vermiculite in the form of exfoliated form is used to replace partially natural sand. By this action dead weight of the structure is reduced. Once the dead weight of structure is reduced, it in turn reduces cost of construction. In this study three mixes were casted with the cement content of 383 kg/m3 in M20 concrete and the water cement ratio of 0.45 is chosen. Vermiculite at 10%, 20% and 30% are choosing to partially replace the natural sand. The Tests conducted on concrete for evaluating mechanical properties include compressive strength and split tensile strength. For evaluating durability properties, tests like acid resistance, sulphate resistance, chlorine penetration and water absorption.

Kiran kumar narasimhan

Natural products targeting the atr-chk1 signaling pathway in cancer therapy

Cancer is one of the most severe medical conditions in the world, causing millions of deaths each year. Chemotherapy and radiotherapy are critical treatment approaches, but both have numerous adverse health effects. Furthermore, the resistance of cancerous cells to anticancer medication leads to treatment failure. The rising burden of cancer requires novel, efficacious treatment modalities. Natural remedies offer feasible alternative options against malignancy in contrast to available synthetic medication. Selective killing of cancer cells is privileged mainstream in cancer treatment, and targeted therapy represents the new tool with the potential to pursue this aim. The discovery of innovative therapies targeting essential components of DNA damage signalling and repair pathways, such as ataxia telangiectasia mutated and Rad3-related Checkpoint kinase 1 (ATR-CHK1), has offered a possibility of significant therapeutic improvement in oncology. The activation and inhibition of this pathway account for chemopreventive and chemotherapeutic activity, respectively. Targeting this pathway can also aid in overcoming the resistance of conventional chemo- or radiotherapy. This review enlightens the anticancer role of natural products by ATR-CHK1 activation and inhibition. Additionally, these compounds have been shown to have chemotherapeutic synergistic potential when used in combination with other anticancer drugs. Ideally, this review will trigger interest in natural products targeting ATR-CHK1 and their potential efficacy and safety as cancer-lessening agents.

Dr. Salman Ahmed Dr. salman ahmed

भक्तिकालीन बाज़ारवाद और भक्ति

भारतीय मध्यकालीन समाज और संस्कृति की समझ रखने और समझने की कोशिश करने वाले हरेक अध्येता की नज़र इस ओर जाती है कि बाज़ार भक्तिकालीन कवियों के बात करने का एक ख़ास बिन्दु रहा है। जहाँ ये कवि बाज़ार को सबसे अधिक जनतांत्रिक जगह के रूप में प्रस्तुत करते रहे हैं, चाहे वे कबीर रहे हो रैदास हो या फिर तुलसी। ये कवि हमें होशियार भी करते हैं कि बाज़ार में सारी भौतिक चीजें बिक रही हैं आप उन्हें खरीद सकते हैं मगर प्रेम आप नहीं खरीद सकते। ये कवि प्रेम की लगातार वक़ालत करते है। इनके पास दुनिया को खूबसूरत बनाने का एक ही रास्ता है -प्रेम। वे बताते हैं कि कैसे ये भौतिक चीजें मनुष्य के प्रेम को ब्रह्म यानी ज्ञान या मानवता के रास्ते में रोड़ा बन जाती हैं। साथ ही कैसे भौतिक चीज़ें आज अपनी पाँव तेजी से पसारती जा रही हैं।

Manish Patel Manish patel

Study of medicinal herbs and its antibacterial activity: a review

The beneficial medicinal effects of plant materials typically result from the secondary products present in the plant although, it is usually not attributed to a single compound but a combination of the metabolites. The medicinal actions of plants are unique to a particular plant species or group, consistent with the concept that the combination of secondary products in a particular plant is taxonomically distinct.The screening of plants usually involves several approach; ethno botanical approach is one of the common methods that are employed in choosing the plant for pharmacological study. In the present review paper, antimicrobial properties of various medicinal plants were reviewed. The present review deals with the antibacterial activity of various medicinal plants.

Tapan kumar Mahato Tapan kumar mahato

Anti-emetic activity of six aromatic medicinal plants by using chick emetic model

The current study explored the anti-emetic activity of six aromatic medicinal plants viz Carissa carandus L.. Cichorium intybus Cinnamomum tamala L.. Lallemantia royleana Benth. Matricaria chamomilla L., and Piper metysticum G. Forst . Anti-emetic activity was assessed using a chick as an anti-emetic model. The ethanol extracts of these plants were administered at 150 mg/kg BW orally. Lallemantia royleana and Piper metysticum showed a significant (P <0.001 ) decrease in retches induced by copper sulphate pentahydrate given orally at 50 mg/kg BW. Domperidone was given at 100 mg/kg as a reference drug.

Dr. Salman Ahmed Dr. salman ahmed

A secure distributed peer to peer systems

A P2P network can be an ad hoc connection- a couple of computers connected via a Universal Serial Bus to transfer files. And these networks are vulnerable to peers. The traditional security techniques are insufficient for P2P networks as they are insecure by their very nature. There’s no centralized server controlling access to shared resources in a P2P network which have unique challenges including identity management of the peers, secure reputation data management, Sybil attacks, and above all, availability of reputation data. The future actions are predicted where peers are encapsulated in its digital reputation, based on the past behaviour of the peer.Thus a peer’s reputation allows it to cooperate and prevent from malicious activities. The cryptographic protocol is coupled with selfcertification and cryptographic mechanisms for identity management and countering Sybil attack.

Dr H Shaheen Dr h shaheen

Analgesic and anti-inflammatory activities of fixed oil of macrotyloma uniflorum (lam.) verdc. in mice and rats

Macrotyloma uniflorum, commonly known as horse gram or kulthi bean, is grown as a pulse for livestock and human consumption. The beans contain about 1.3% fat, 18% protein, 15% carbohydrate, and vitamins and minerals. Traditional medicine uses it as an antihyperglycemic, antioxidant, antihypertensive and diuretic. Other important medicinal uses include the treatment of renal stones, obesity, piles, oedema and fever. The present study evaluated analgesic (by acetic acid-induced writhing, hot plate and tail flick tests in mice) and anti-inflammatory (carrageenan-induced paw oedema in rats) activities of Macrotyloma uniflorum fixed oil (MUFO). Four groups were included in the study: Group I: Normal Saline Control (2ml/kg), Group II: MUFO (2ml/kg), Group III: MUFO (4ml/kg), and Group IV: Standard Acetyl salicylic acid (ASA 300mg/kg). All results were significant; however, the tail flick and paw oedema tests observed a delayed onset of action. The oil's acute oral toxicity was also checked in mice and was found safe up to a 4ml/kg dose, as no signs of toxicity and mortality were observed. It is concluded that Macrotyloma uniflorum fixed oil may possess analgesic and anti-inflammatory activity, which can be related to a peripheral mechanism of action.

Dr. Salman Ahmed Dr. salman ahmed

India’s trade growth: a comprehensive analysis of import and export

India’s economic system has undergone significant changes in recent years reflecting globalization and changes in national policies. This paper provides a comprehensive analysis of India’s economic growth, focusing on imports and exports. The study explores the key drivers of economic expansion, including trade liberalization, trade agreements, and technological advancement. It also explores the impact of international trade and geopolitical events on business models. It assesses the role of policy measures such as the Goods and Services Tax (GST), the Make in India initiative, and various free trade agreements in generating economic benefits. The paper also assesses the trade balance and its impact on India’s economic stability and growth. The paper concludes with recommendations for improving the market, including diversifying entrepreneurs, investing in infrastructure, and strengthening the domestic economy. The review provides insights to policymakers, businesses, and academics who want to understand and harness India’s economic potential in the global economy.

Dr Gedam Kamalakar Dr gedam kamalakar

A challenging presentation of pyrexia and macroscopic hematuria in a kidney transplant patient

Kidney transplant kidney transplant ( KTx) recipients have increased susceptibility to a spectrum of infections including; bacterial, viral, and fungal pathogens. Many factors contribute to their infection potential risk, in terms of their immunosuppressive state, that result in suppression of their B‑and T‑lymphocyte repertoire, also to consider certain donor and recipient‑related factors, that make them at risk of specific type of infectious complications. In addition kidney transplant patients tolerate poorly infections, which may adversely affect their graft function, by inducing glomerular injury, hence early diagnosis, directed therapy, and careful dosing of antimicrobial agents is of paramount importance in reducing patient’s morbidity and mortality. We report a kidney transplant patient, who received her live related kidney graft 7 years earlier (in 2013), she has been with stable graft function in most of her follow up period, until she presented with pyrexia, dyspnea and fatigue associated with deterioration of her graft function.

HANI Hani

The effect of using dettol, salt and hot tap water in elimination of toothbrush contamination

Regularly used toothbrushes can be heavily contaminated with microorganisms, while inappropriate storage may increase the microbial load on these toothbrushes. Toothbrushes Microbial contamination can help to transmit many diseases, especially for people with mouth and/or Gum problems. This study aims to find the easiest and most available way to sterile toothbrushes at home. 24 adult volunteers were divided into four groups, the first three groups were asked to sterilize their toothbrushes with Dettol, water salt and hot water, while the fourth group toothbrushes were a positive control. Results showed that toothbrushes sterilized with Dettol gave the least contamination rate of 12.5%, toothbrushes sterilized with salt came next with 37.5%, while toothbrushes sterilized with hot tap water were the next with 50%. The toothbrushes of the fourth group which was used as the positive control were totally contaminated with different types of bacteria. Six bacterial agents were isolated; they are Staphylococcus Sp., Streptococcus sp., Bacillus Sp., E.coli, Pseudomonas Sp., and Salmonella sp. It was concluded that the use of Dettol was very effective in reducing the number of contamination of toothbrushes but its unacceptable flavour limiting its use. Other volunteers were comfortable with the use of salt and hot water as it was almost effective. The research suggests a group of recommendations to avoid the transmission of pathogens through toothbrushes and ensure healthy usage.

Kamal Singh Kamal singh

The influence of employee empowerment on employee job satisfaction in five-star hotels in jordan

This paper examines the influence of empowerment on job satisfaction in five-star hotels in Jordan. The influence of empowerment on job satisfaction remains a relatively unexplored area. A 52-item questionnaire, measuring empowerment and job satisfaction, was distributed to 332 employees in 12 five-star hotels in Jordan with a 56% response rate. Principal components analysis determined the factor structure and regression analysis determined the influence of empowerment on job satisfaction. The results revealed both structural and psychological empowerment have significant individual influences on job satisfaction, but more significant when structural and psychological empowerment are combined. Most of previous studies were conducted in western economies and little in the Middle East generally and Jordan in particular. This research contributes to the literature by including both dimensions of empowerment where previous scholars used only one.

Mukhles m. al-ababneh

A study on the cause of stress among employees in private banking sector

Purpose of this study is examining the cause of stress among selected private banking employees. Stratified sampling method was used to carry out the data collection. For this employee of various private banks were chosen. A questionnaire with 12 items with dichotomous (Yes-1, NO-2) were developed and tested for reliability and prior to the distribution of questionnaire. 253 respondents were selected from various private banks in Mysore district, Karnataka state India. The survey questionnaire was sent via email, requesting to complete it. The questionnaire includes 11 demographic information’s and statements to measure. Chi-Square analysis was carried out to examine the cause of stress among employee using SPSS21. We found that designations have significant influence on employee and The other factors of do not have any significant influence on employee. Therefore we concluded that in private banks demographic variable such as designation creates stress in all aspects. Future research should consider a larger sample from leading sectors where job natures are similar. Analysis should be more rigorous, where Amos could be used for analysis.

Dr MANJUNATHA M K Dr manjunatha m k

General meaning relation - definite / indefinite meaning in noun class

The general meaning of a word is the representation of the type from it, in linguistic contexts and certain grammatical forms and this meaning is opposed to the individualized meaning, the separation of a unique item of the type, distinguishable from others. The general meaning seems like a grammatical meaning that is not formally sufficiently marked, but the indefinite articles and the suffixes, in addition to other grammatical meanings, can also express a general meaning in certain contexts. A definite meaning of the noun is generally considered the meaning of the noun in the definite form and indefinite meaning the one of the indefinite noun. But how does the general meaning relate to them? Nouns with general meaning, whether in the indefinite form or in the definite form are meaningfully definite. Both the speaker and the listener know the class that the general noun marks. Despite the formal indefiniteness / definiteness, nouns with a general meaning are semantically definite.

Anglisticum

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