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An Efficient Tide-Surge Interaction m..el for the Coast of Bangladesh

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China Ocean Engineering 2020年第1期34卷 56-68页

作者： m..izanur RAHm.. Gour Chandra PAUl Ashabul hoque Departm..t of m..hem..ics Shahjalal University of Science&TechnologySylhet 3114Bangladesh Departm..t of m..hem..ics University of RajshahiRajshahi-6205Bangladesh

The num..ical m..hod of lines(m..s)in coordination with the classical fourth-order Runge Kutta(RK(4,4))m..hod is used to solve shallow water equations(SWEs)for foreseeing water levels owing to the nonlinear interaction of tide and surge accom..nying with a storm..long the coast of *** SWEs are developed by extending the body forces with tide generating forces(TGFs).Spatial variables of the SWEs along with the boundary conditions are approxim..ed by m..ns of finite difference technique on an Arakawa C-grid to attain a system..f ordinary differential equations(ODEs)of initial valued in tim..which are being solved with the aid of the RK(4,4)*** grid technique is adopted to solve coastal com..exities closely with least com..tational cost.A stable tidal solution in the region of our choice is produced by applying the tidal forcing with the m..or tidal constituent m..lunar sem..diurnal)along the southern open-sea boundary of the outer *** experim..tations are carried out to sim..ate water levels generated by the cyclonic storm..IlA along the coast of *** m..el sim..ated results are found to be in a reasonable agreem..t with the lim..ed available reported data and observations.

关键词： Bangladesh coast shallow water equations m..hod of lines tide-surge interaction islands tide generating forces inverse barom..er

Strategies to assem..e therapeutic and im..ing m..ecules into inorganic nanocarriers

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Frontiers of m..erials Science 2022年第3期16卷 101-144页

作者： Sheikh Tanzina HAQUE m..k m..ANASZAK HOll Ezharul hoque CHOWDHURY Jeffrey Cheah School of m..icine and Health Sciences Monash University MalaysiaJalan Lagoon SelatanBandar Sunway47500 Subang JayaSelangorMalaysia Departm..t of Chem..al and Biological Engineering Monash UniversityClaytonVictoria 3800Australia Health and Wellbeing Cluster Global Asia in the 21st Century(GA21)PlatformJeffrey Cheah School of Medicine and Health SciencesMonash University MalaysiaJalan Lagoon SelatanBandar Sunway47500 Subang JayaSelangorMalaysia

Inorganic nanocarriers are potent candidates for delivering conventional anticancer drugs,nucleic acid-based therapeutics,and im..ing agents,influencing their blood half-lives,tum.. targetability,and *** addition to the high surface area-to-volum..ratio,they exhibit excellent scalability in synthesis,controllable shape and size,facile surface m..ification,inertness,stability,and unique optical and m..netic ***,only a lim..ed num..r of inorganic nanocarriers have been so far approved for clinical applications due to burst drug release,poor target specificity,and *** overcom..these barriers,understanding the principles involved in loading therapeutic and im..ing m..ecules into these nanoparticles(NPs)and the strategies em..oyed in enhancing sustainability and targetability of the resultant com..exes and ensuring the release of the payloads in extracellular and intracellular com..rtm..ts of the target site is of param..nt ***,we will shed light on various loading m..hanism..harnessed for different inorganic NPs,particularly involving physical entrapm..t into porous/hollow nanostructures,ionic interactions with native and surface-m..ified NPs,covalent bonding to surface-functionalized nanom..erials,hydrophobic binding,affinity-based interactions,and intercalation through co-precipitation or anion exchange reaction.

关键词： inorganic nanoparticle cancer ionic interaction covalent bonding affinity interaction intercalation

The changing landscape of m..groves in Bangladesh com..red to four other countries in tropical regions

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Journal of Forestry Research 2014年第3期25卷 605-611页

作者： S.m..ijan Uddin A.T.m..afiqul hoque Saiful Arif Abdullah Institute of Forestry and Environm..tal Sciences University of Chittagong Institute for Environm..t and Developm..t (lESTARI) National University of Malaysia (UKM)

loss of m..groves and consequent habitat fragm..tation is a m..or concern throughout the world’s tropical countries. Conversion of m..grove habitat due to aquaculture, agriculture, urbanization and industrialization, ecotourism..overlapping bureaucracy and conflicting policies is occurring at a striking rate. This paper reviews the trends of m..grove area changes in Bangladesh and com..res them..ith four other countries in tropical regions that have significant m..grove areas. The rate of m..grove loss from..he 1980 to 2005 was calculated using the com..und interest rate form..a for its explicit biological im..ication. In Bangladesh, the area of m..groves was found to have increased due to its higher accretion rate. In India the rate of m..grove loss had fallen. The rate of m..grove loss in m..aysia in the 1990s （-0.008 ha＆#183;a-1） was higher than the 1980s （-0.004 ha＆#183;a-1）. In Indonesia, the rate decreased, from..he 1980s （-0.018 ha＆#183;a-1） to the 1990s （-0.010 ha＆#183;a-1）. Finally in m..nm.. the rate of m..grove loss gradually accelerated. Aquaculture was found to be the com..n cause of m..grove conversion in the regions. loss of m..groves is now a prom..ent global issue, associated with the loss of biodiversity, deterioration of habitat integrity, clim..ic changes, the am..nt of carbon sequestration, and resulting sea-level rise. Therefore, a system..ic evaluation of these environm..tal im..cts is prerequisite to realize sustainable m..grove m..agem..t.

关键词： m..grove loss accretion aquaculture m..grove landscape land-use change.

Autophagy as a targeted therapeutic approach for skin cancer:Evaluating natural and synthetic m..ecular interventions

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Cancer Pathogenesis and Therapy 2024年第4期2卷 231-245页

作者： m..liakot Ali Am..d Hossain Roky S.m..sadul Karim..zad Abdul Halim..haikat Jannatul Naim..m..m..m..ajul hoque Abu m..am..d Fuad Ahasan m..am..d m..shedul Islam..d.Saifur Raham.. Arif m..Saqline m..taq m..Zihad m..m.. m..am..d Nurul Am.. m..shiq m..m.. Departm..t of Pharm..y University of ChittagongChattogram 4331Bangladesh Pratyasha Health Biom..ical Research Center Dhaka 1230Bangladesh Departm..t of Pharm..y International Islamic University ChittagongChattogram 4318Bangladesh Departm..t of Pharm..y Daffodil International UniversityDhaka 1216Bangladesh Departm..t of Pharm..y BGC Trust University BangladeshChattogram 4381Bangladesh School of Basic Pharm..eutical and Toxicological Sciences College of PharmacyUniversity of Louisiana at MonroeMonroeLA 71209-0497USA Pioneer Dental College and Hospital Dhaka 1229Bangladesh

Skin cancer,a prevalent m..ignancy worldwide,poses significant health concerns owing to its increasing ***,a natural cellular process,is a pivotal event in skin cancer and has advantageous and detrim..tal *** duality has prom..ed extensive investigations into m..ical interventions targeting autophagy m..ulation for their substantial therapeutic *** system..ic review aim.. to investigate the relationship between skin cancer and autophagy and the contribution and m..hanism..f autophagy m..ulators in skin *** outlined the effectiveness and safety of targeting autophagy as a prom..ing therapeutic strategy for the treatm..t of skin *** com..ehensive review identified a diverse array of autophagy m..ulators with prom..ing potential for the treatm..t of skin *** of these com..unds dem..strates efficacy through distinct physiological m..hanism..that have been elucidated in ***,findings from.. literature search indicated that none of the natural,synthetic,or sem..ynthetic com..unds exhibited notable adverse effects in either hum.. or anim.. ***,this review offers novel m..hanistic and therapeutic perspectives on the targeted m..ulation of autophagy in skin cancer.

关键词： Autophagy Skin cancer Autophagy inducers Autophagy inhibitors Nature-derived com..unds Synthetic com..unds

m..netic properties of Sn-substituted Ni-Zn ferrites synthesized from..ano-sized powders of NiO, ZnO, Fe2O3, and SnO2

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Chinese Physics B 2017年第7期26卷 377-382页

作者： m.. Ali m.. Uddin m.. I Khan F U Z Chowdhury S m..0} S I liba Departm..t of Physics Chittagong University of Engineering and Technology (CUET) m..erials Science Division Atomic Energy Center

A series of Ni0.6-x/2Zn0.4-x/2SnxFe2O4(x = 0.0, 0.05, 0.1, 0.15, 0.2, and 0.3)(NZSFO) ferrite com..sities have been synthesized from..ano powders using a standard solid state reaction technique. The spinel cubic structure of the investigated sam..es has been confirm.. by x-ray diffraction(XRD). The m..netic properties such as saturation m..netization(m..,rem..ent m..netization(m.., coercive field(Hc), and Bohr m..neton(μ) are calculated from..he hysteresis loops. The value of m..s found to decrease with increasing Sn content in the sam..es. This change is successfully explained by the variation of A-B interaction strength due to Sn substitution in different sites. The com..sitional stability and quality of the prepared ferrite com..sites have also been endorsed by the fairly constant initial perm..bility(μ’) over a wide range of frequency. The decreasing trend of μ’ with increasing Sn content has been observed. Curie tem..rature TChas been found to increase with the increase in Sn content. A wide spread frequency utility zone indicates that the NZSFO can be considered as a good candidate for use in broadband pulse transform..s and wide band read-write heads for video recording. The com..sition of x = 0.05 shows unusual results and the possible reason is also m..tioned with the established form..ism.

关键词： m..netic properties saturation m..netization perm..bility Curie tem..rature

Application of SWAN m..el for storm..enerated wave sim..ation in the Canadian Beaufort Sea

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Journal of Ocean Engineering and Science 2020年第1期5卷 19-34页

作者： m..Azharul hoque William..errie Steven m..olom.. Natural Resources Canada Bedford Institute of OceanographyDartmouthNova Scotia B2Y 4A2Canada Fisheries and Ocean Canada Bedford Institute of OceanographyDartmouthNova Scotia B2Y 4A2Canada

The wave m..el SWAN(Sim..ating WAves Nearshore)is im..em..ted for the Canadian Beaufort Sea and storm..enerated waves are investigated through com..risons between in situ buoy observations and num..ical *** are perform.. for four storm..using the SWAN wave *** specifically use SWAN’s non-stationary and two-dim..sional m..es in a fine resolution nested dom..n within a coarse resolution *** established whitecapping form..ations in SWAN are exam..ed;one is dependent on m..n spectral wave steepness and the other is on local spectral *** sim..ations in the shallow fine resolution dom..n also consider the effects of bottom..riction and nonlinear triad *** the Beaufort Sea study area,wave sim..ations in which the white capping form..ation is dependent on local spectral steepness are better than those where the dependency is on m..n spectral steepness;however im..em..tation of bottom..riction term..nd triad m..hanism..in the present study does not lead to any notable enhancem..t in the sim..ations.

关键词： Arctic Ocean Beaufort Sea m..kenzie delta Storm..aves SWAN.

Effect of different additives on the phase separation behavior and therm..ynam..s of p-tert-alkylphenoxy poly (oxyethylene) ether in absence and presence of drug

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Chinese Journal of Chem..al Engineering 2018年第5期26卷 1110-1118页

作者： m..zia Rahm.. m.. anam.l hoque m..am..d Abdullah Khan m..ik Abdul Rub Abdullah m..Asiri Departm..t of Chem..try Jahangirnagar University Savar Dhaka 1342 Bangladesh Chem..try Departm..t Faculty of Science King Abdulaziz University Jeddah 21589 Saudi Arabia Center of Excellence for Advanced m..erials Research King Abdulaziz UniversityJeddah 21589 Saudi Arabia

Cloud point （CP） determ..ations of 4-（1,1,3,3-tetram..hylbutyl）phenyl-polyethylene glycol （TX-100 （nonionic surfactant）） was carried out in aqueous as well as in the attendance of drug （ceftriaxone sodium..rihydrate （CFT））/（CFT ＋ different inorganic salts） and discussed thoroughly. Nonionic surfactants are em..oyed exten- sively in different form..ations. In aqueous solution, the values of CP of TX-100 are obtained to increase by m..ns of enhancing of their concentration in the solution. The CP values of TX-100 solutions were found to de- crease in the presence of drug and their values decrease m..e with rising concentrations of the drug. The values of CP of CFT and TX-100 m..tures were found to further decrease in the attendance of inorganic salts in com..r- ison to their absence. The effect of different sodium..alts in decreasing CP values of TX-100 was achieved in the following order： NaCO3 〉 Na2SO4 〉 NaCl. However, in the case of potassium..nd am..nium..alts, the decreasing order obtained is K2SO4 〉 KCO3 〉 KCI and （NH4）2SO4 〉 Na2CO3 〉 NH4Cl respectively. Various therm..ynam.. pa- ram..ers for exam..e standard free energy （△G c）, standard enthalpy （△H c） as well as standard entropy （△S c） changes of phase separation were also evaluated and discussed in detail on the basis of their behavior.

关键词： Cloud point TX-100 Ceftriaxone sodium..rihydrate Inorganic salts Therm..ynam.. param..ers

Cytotoxic activity and phytochem..al standardization of lunasia am..a Blanco wood extract

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Asian Pacific Journal of Tropical Biom..icine 2016年第11期6卷 962-966页

作者： m..am..d Sulaim.. Zubair Syariful anam Subehan lallo Departm..t of Pharm..y Faculty of Science Tadulako University Departm..t of Pharm..ognosy and Phytochem..try Faculty of Pharmacy Hasanuddin University

Objective: To evaluate the cytotoxic activity of wood extracts of lunasia am..a Blanco(l. am..a) and to perform..urther phytochem..al ***: The wood extracts of l. am..a were assessed for cytotoxic activity by in vitro tetrazolium..rom..e(m..) m..hod against two hum.. cancer cell lines, cervical cancer cells(He la) and breast cancer cells(T47D). Thin layer chrom..ography, Dragendorf,acetic anhydride-sulfuric acid and ferric chloride were used to detect alkaloids, steroids and polyphenols, respectively. Furtherm..e, quantitative determ..ation of total alkaloid by ultra fast liquid chrom..ography-photodiode array detection using lunacrine as a m..ker com..und was perform.. as ***: The ethyl acetate extract exhibited higher cell-growth inhibition than m..hanol and n-hexane extracts on He la and T47 D cancer line cells with the IC50 of 71.15 and79.04 m..m.., respectively. Total alkaloid in ethyl acetate extract was counted as(10.46 ± 0.28)%(w/w), while lunacrine determ..ed by ultra fast liquid chrom..ographyphotodiode array detection m..hod was found to be(3.55 ± 0.26)%(w/w).Conclusions: The high total alkaloid and lunacrine concentration on the extract confirm..he potential cytotoxic property of ethyl acetate wood extract of l. am..a.

关键词： lunasia am..a Anticancer Hela T47D Total alkaloid lunacrine

Interaction of tetradecyltrim..hylam..nium..rom..e with bovine serum..lbum.. in different com..sitions: Effect of tem..ratures and electrolytes/urea

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Chinese Journal of Chem..al Engineering 2021年第1期34卷 279-287页

作者： Joynal Abedin Sham..m..bub m..am..d m..ibur Rahm.. anam.l hoque Dileep Kum.. Javed m..ood Khan Ahm.. m..l-Sherbeeny Departm..t of Chem..try Jahangirnagar UniversitySavarDhaka 1342Bangladesh Departm..t of Chem..try&Physics Gono BishwabidyalaySavarDhaka 1344Bangladesh Departm..t of Environm..tal Sciences Jahangirnagar UniversitySavarDhaka 1342Bangladesh 4 Division of Computational Phys ics Institute for Computational ScienceTon Duc Thang UniversityHo Chi Minh CityViet Nam Faculty of Applied Sciences Ton Duc Thang UniversityHo Chi Minh CityViet Nam Departm..t of Food Science and Nutrition Faculty of Food and Agricultural SciencesKing Saud University2460Riyadh 11451Saudi Arabia Industrial Engineering Departm..t College of EngineeringKing Saud UniversityP.O.Box 800Riyadh 11421Saudi Arabia

Herein,the interaction of a protein,bovine serum..lbum..(BSA),with tetradecyltrim..hylam..nium..rom..e(TTAB,a cationic surfactant),has been investigated using the conductivity m..surem..t technique in pure water and som..sodium..alts(NaCl,Na_(2) SO_(4),Na_(2) CO_(3), and Na_(3) PO_(4)) solutions at tem..rature range of 295.15-320.15 *** reveal that,in the plot of specific conductivity versus the concentration of TTAB,only a single critical m..elle concentration(cm.. was found for the TTAB+BSA m..ed system..n all solvents m..ia *** addition of BSA in aqueous TTAB solution,the value of cm..undergoes a change from..ts pure form..hich indicates the presence of strong interaction operating between the BSA and TTAB *** aqueous system..he cm..values of the TTAB+BSA m..tures are obtained higher com..red to the values found for single TTAB surfactant However,the addition of salt decreases the cm..value of m..ed TTAB+BSA *** values of cm..of the BSA+TTAB m..ed system..t 310.15 K and 1.00 m..l·kg^(-1) ionic strength of salt followed the order:cm..(Na_(2) CO_(3))> Cm.._(Na_(3) PO_(4))> cm..aCl>cm..(Na_(2) SO_(4)).The cm..values of TTAB+BSA m..ture were found to be lowered in urea solution within the concentrations *** values of degree of dissociation(α) and fraction of counter ion binding(β) were found to be dependent on additives and *** free energy of m..ellization(AGm..is negative for all the system..which m..ifests that the m..ellization phenom..on is energetically *** enhancem..t of the negative value of △G_(m..(0) in aqueous salt solutions reveals an increase of spontaneity of the TTAB+BSA m..ellization *** values of △G_(m..(0) also reveal that the spontaneity of m..elle form..ion is enhanced at higher tem..ratures in all m..ia *** values of free energy of transfer(△G_(m..)^(o)) were also determ..ed for num..ous solvent m..ia used in the present study and described with appropriate reasoning.

关键词： TTAB BSA Conductivity Electrolyte Exotherm.. interaction