Search results for: Md. Saiful Islam

Items from 1 to 20 out of 170 results

article

New insight into the substituent effects on the hydrolytic deamination of saturated and unsaturated cytosine

Kabir M. Uddin, Md. Saiful Islam, Shahidul M. Islam, Raymond A. Poirier

International Journal of Quantum Chemistry > 123 > 2 > n/a - n/a

Ab initio calculations were carried out to understand the effect of electron donating groups (EDG) and electron withdrawing groups (EWG) at the C5 position of cytosine (Cyt) and saturated cytosine (H₂Cyt) of the deamination reaction. Geometries of the reactants, transition states, intermediates, and products were fully optimized at the B3LYP/6‐31G(d,p) level in the gas phase as this level of theory...

article

Globalization and politico‐administrative factor‐driven energy‐growth nexus: A case of South Asian economies

Md. Monirul Islam, Md. Saiful Islam

Journal of Public Affairs > 22 > S1 > n/a - n/a

In modern days, economic growth is energy‐dependent and vice versa. Earlier studies concentrated a bit to analyze the influence of globalization and politico‐administrative factors on the energy consumption‐economic growth nexus in developing economies. The motivation for the current research is to scrutinize the energy consumption‐economic growth nexus while accounting for the influence of globalization...

article

Do personal remittances influence economic growth in South Asia? A panel analysis

Md. Saiful Islam

Review of Development Economics > 26 > 1 > 242 - 258

This paper investigates the remittance and economic growth relationship using annual panel data for the period 1986–2019 on selected South Asian economies with trade openness (TOP) and foreign direct investment (FDI) inflow as control variables. The cross‐sectional dependency test, second‐generation panel unit root test, panel generalized least square (GLS), panel fully modified ordinary least squares...

article

Multi‐scale ensemble properties of the Escherichia coli RNA degradosome

Tom Dendooven, Giulia Paris, Alexander V. Shkumatov, Md. Saiful Islam, more

Molecular Microbiology > 117 > 1 > 102 - 120

In organisms from all domains of life, multi‐enzyme assemblies play central roles in defining transcript lifetimes and facilitating RNA‐mediated regulation of gene expression. An assembly dedicated to such roles, known as the RNA degradosome, is found amongst bacteria from highly diverse lineages. About a fifth of the assembly mass of the degradosome of Escherichia coli and related species is predicted...

article

A deep learning model for mining and detecting causally related events in tweets

Humayun Kayesh, Md. Saiful Islam, Junhu Wang, A.S.M. Kayes, more

Concurrency and Computation: Practice and Experience > 34 > 2 > n/a - n/a

Nowadays, public gatherings and social events are an integral part of a modern city life. To run such events seamlessly, it requires real time mining and monitoring of causally related events so that the management can make informed decisions and take appropriate actions. The automatic detection of event causality from short text such as tweets could be useful for event management in this context...

article

Human exposures to by‐products from animals suspected to have died of anthrax in Bangladesh: An exploratory study

Md. Saiful Islam, S. M. Murshid Hasan, Johanna S. Salzer, Melissa Kadzik, more

Transboundary and Emerging Diseases > 68 > 4 > 2514 - 2520

Anthrax is a zoonotic disease caused by the bacterium Bacillus anthracis that is considered endemic in Bangladesh, where cases among animals and people have been reported almost annually since 2009. Contaminated by‐products from animals are suspected to play a role in transmission to people, but minimal information is known on the supply chain of these potentially contaminated products. Between April...

article

Energy consumption–economic growth nexus within the purview of exogenous and endogenous dynamics: evidence from Bangladesh

Md. Monirul Islam, Md. Saiful Islam

OPEC Energy Review > 45 > 2 > 191 - 216

This paper investigates the nexus between energy consumption and economic growth in Bangladesh over the period 1971–2018 using the autoregressive distributed lag (ARDL) approach to cointegration. The main contribution of this study is the inclusion of exogenous dynamic (globalisation) and endogenous factor (political risk indicator measured by political terror scale (PTS)) to the energy consumption–economic...

article

Minimum fatigue striation spacing and its stress amplitude dependence in a commercially pure titanium

Mansur Ahmed, Md Saiful Islam, Shuo Yin, Rocco Lupoi

Fatigue & Fracture of Engineering Materials & Structures > 43 > 3 > 628 - 634

We report the fatigue striation spacing of commercially pure titanium with respect to stress amplitude. Rotating bending fatigue tests were performed at 150, 175, 200 and 227 MPa in which samples did not fail at 150 MPa. No fatigue striation up to a certain crack length is observed for the studied conditions. For each condition, a minimum striation spacing value is found that decreases from 0.45 to...

article

Fault detection and severity classification based on adaptive filter and fuzzy logic

Md. Saiful Islam, Uipil Chong

SN Applied Sciences > 2019 > 1 > 12 > 1-9

Rotating machines faults are the most common faults in the industry. Thousands of faults detection techniques are widely used to identify the faults in the rotating machines. However, severity classification of the fault is more important to prevent the breakdown of the system as well as save the properties even human causality. The aim of this paper is to determine the fault signatures to identify...

article

A low latency MAC protocol for underwater sensor networks considering bi-directional communication in multi-hop and multi-flow scenarios

Jenifar Rahman, Md. Zahirul Islam, William Luke Lambert, Md. Saiful Islam, more

SN Applied Sciences > 2019 > 1 > 12 > 1-19

Underwater Acoustic Sensor Network (UW-ASN) is a remote system comprising of spatially disseminated independent gadgets utilizing sensors to screen physical or natural conditions underwater. Regular MAC protocol is not adequate in underwater acoustic sensor systems (UW-ASN) due to high error rate and long propagation delay for the general attributes of the physical media. In this research work, a...

article

Auger electron spectroscopic analysis of corrosion products formed on A3003 aluminum alloy in model fresh water with different Zn²⁺ concentration

Kyohei Otani, Md. Saiful Islam, Masatoshi Sakairi, Akira Kaneko

Surface and Interface Analysis > 51 > 12 > 1207 - 1213

The corrosion morphology and composition of corrosion products of A3003 formed in model fresh water with different Zn²⁺ concentrations were investigated by immersion tests combined with surface observations and analysis using an Auger electron spectroscope (AES). The cross‐sectional AES observations showed that the thickness of the corrosion product layer formed on A3003 decreases with increases in...

article

Autophagy-mediated Nutrient Recycling and Regulation in Plants: A Molecular View

Md. Saiful Islam, Ram Proshad, Tapos Kormoker, Tanmoy Roy Tusher

Journal of Plant Biology > 2019 > 62 > 5 > 307-319

Autophagy is a major catabolic process in eukaryotic cells for delivering unwanted proteins or damaged organelles to the vacuole for degradation and recycling. In plants, it functions as a housekeeping process to maintain cellular homeostasis under normal conditions and is induced by stress and senescence; it thus plays important roles in development, stress tolerance, nutrient recycling, cell survival...

article

An intra-household analysis of farmers’ perceptions of and adaptation to climate change impacts: empirical evidence from drought prone zones of Bangladesh

A. K. M. Abdullah Al-Amin, Tahmina Akhter, Abu Hayat Md. Saiful Islam, Hasneen Jahan, more

Climatic Change > 2019 > 156 > 4 > 545-565

The agricultural sector is highly vulnerable to climate change, particularly in drought-prone environments. An understanding of perceptions, adaptation strategies, and their determinants including a gender analysis can benefit vulnerable farmers and policy makers. Using a survey of 360 farming household heads and their spouses, this study identified the intra-household perceptions and their determinants,...

article

Modular Decomposition-Based Graph Compression for Fast Reachability Detection

Shikha Anirban, Junhu Wang, Md. Saiful Islam

Data Science and Engineering > 2019 > 4 > 3 > 193-207

Fast reachability detection is one of the key problems in graph applications. Most of the existing works focus on creating an index and answering reachability based on that index. For these approaches, the index construction time and index size can become a concern for large graphs. More recently query-preserving graph compression has been proposed, and searching reachability over the compressed graph...

article

Drought adaptation measures and their effectiveness at Barind Tract in northwest Bangladesh: a perception study

Md. Saiful Islam, Md. Zakir Hossain, Md. Bahuddin Sikder

Natural Hazards > 2019 > 97 > 3 > 1253-1276

Drought is a natural calamity frequently occurs at Barind Tract in northwest Bangladesh and affects both the human and natural life. An initiative has been taken to investigate the drought adaptation scenario practicing in Barind Tract as well as their effectiveness according to farmers’ perception. This study is mainly based on primary data collected through a structured questionnaire by surveying...

article

Design and Analysis of a Novel Air Gap–Based Semi-elliptical Nanoplasmonic Coupler

Rakibul Hasan Sagor, Md. Saiful Islam Sumon, Mahir Tazwar

Plasmonics > 2019 > 14 > 6 > 1993-2001

Efficient coupling of light between the dielectric waveguide and plasmonic waveguide has been investigated theoretically in three dimensions. An air gap-based novel nanoplasmonic semi-elliptical structure of silicon (Si) is used as a coupler, which connects these waveguides. Finite integration technique (FIT) has been deployed for the investigation. Theoretical coupling efficiency of ∼85% at optical...

article

Optimal PID tuning for controlling the temperature of electric furnace by genetic algorithm

Md. Manjurul Gani, Md. Saiful Islam, Muhammad Ahsan Ullah

SN Applied Sciences > 2019 > 1 > 8 > 1-8

Temperature is one of the exigent parameters that needs to be controlled in today’s industries. Importantly this temperature control should be precise and fast. As the conventional controllers are not optimally tuned, the controller used for controlling the temperature of the electric furnace does not exhibit better performance. Its rise time and settling time is too large as well as it has a sizable...

article

A fuzzy logic based contrast and edge sensitive digital image watermarking technique

Jitu Prakash Dhar, Md. Saiful Islam, Muhammad Ahsan Ullah

SN Applied Sciences > 2019 > 1 > 7 > 1-9

In this paper, a fuzzy logic based digital image watermarking technique is proposed. The contrast and edge values of the host image are analyzed by the fuzzy inference system (FIS) against fuzzy rules and then the FIS evaluates the output which is proposed as the watermarking strength (α) of the image. By varying the contrast and edge values of the host image, the fuzzy logic adjusts the watermarking...

article

Dopamine receptor antagonists induce differentiation of PC‐3 human prostate cancer cell‐derived cancer stem cell‐like cells

Su In Lee, Md Saiful Islam Roney, Jong Hyeok Park, Ji‐Young Baek, more

The Prostate > 79 > 7 > 720 - 731

Background The objective of this study was to determine whether PC‐3 human prostate cancer cell‐derived cancer stem cells (CSC)‐like cells grown in a regular cell culture plate not coated with a matrix molecule might be useful for finding differentiation‐inducing agents that could alter properties of prostate CSC. Methods Monolayer cells prepared from sphere culture of PC‐3 cells were characterized...

article

IG-Tree: an efficient spatial keyword index for planning best path queries on road networks

Anasthasia Agnes Haryanto, Md. Saiful Islam, David Taniar, Muhammad Aamir Cheema

World Wide Web > 2019 > 22 > 4 > 1359-1399

Due to the popularity of Spatial Databases, many search engine providers have started to expand their text searching capability to include geographical information. Because of this reason, many new queries on spatial objects affiliated with textual information, known as the Spatial Keyword Queries, have taken significant research interest in the past years. Unfortunately, most of existing works on...

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INFONA - science communication portal

Search results for: Md. Saiful Islam

New insight into the substituent effects on the hydrolytic deamination of saturated and unsaturated cytosine

Globalization and politico‐administrative factor‐driven energy‐growth nexus: A case of South Asian economies

Do personal remittances influence economic growth in South Asia? A panel analysis

Multi‐scale ensemble properties of the Escherichia coli RNA degradosome

A deep learning model for mining and detecting causally related events in tweets

Human exposures to by‐products from animals suspected to have died of anthrax in Bangladesh: An exploratory study

Energy consumption–economic growth nexus within the purview of exogenous and endogenous dynamics: evidence from Bangladesh

Minimum fatigue striation spacing and its stress amplitude dependence in a commercially pure titanium

Fault detection and severity classification based on adaptive filter and fuzzy logic

A low latency MAC protocol for underwater sensor networks considering bi-directional communication in multi-hop and multi-flow scenarios

Auger electron spectroscopic analysis of corrosion products formed on A3003 aluminum alloy in model fresh water with different Zn²⁺ concentration

Autophagy-mediated Nutrient Recycling and Regulation in Plants: A Molecular View

An intra-household analysis of farmers’ perceptions of and adaptation to climate change impacts: empirical evidence from drought prone zones of Bangladesh

Modular Decomposition-Based Graph Compression for Fast Reachability Detection

Drought adaptation measures and their effectiveness at Barind Tract in northwest Bangladesh: a perception study

Design and Analysis of a Novel Air Gap–Based Semi-elliptical Nanoplasmonic Coupler

Optimal PID tuning for controlling the temperature of electric furnace by genetic algorithm

A fuzzy logic based contrast and edge sensitive digital image watermarking technique

Dopamine receptor antagonists induce differentiation of PC‐3 human prostate cancer cell‐derived cancer stem cell‐like cells

IG-Tree: an efficient spatial keyword index for planning best path queries on road networks

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