1,766 research outputs found
Weakly Orthogonal Spherical Harmonics in a Non-Polar Spherical Coordinates and its Application to Functions on Cubed-Sphere
Get PDFIn a recent paper (Nasir, 2007), a set of weakly orthogonal and completely orthogonal spherical harmonics in a non-polar spherical coordinate system based on a cubed-sphere was constructed. In this work, we explore some linear relations between these two sets of spherical harmonics. Moreover, a power representation for the set of weakly orthogonal spherical harmonics corresponding to a mode is presented. We also determine the norm of the orthogonal spherical harmonics and hence the inner products for the weakly orthogonal spherical harmonics. As an immediate application of these properties, we present a Fourier series formulation of spherical functions defined on the cubed-sphere
Bakti Untuk Indonesia H.M. LUKMINTO Pendiri Kelompok Usaha Sritex Perusahaan Sritex Terbesar Se-Asia Tenggara
No full text23 cm ; xx ; 540 Ha
Hearing loss and contributing factors among airport workers in Malaysia
No full textSensorineural hearing loss is a common and important source of disability among the workers and often caused by occupational noise exposure. Aims of the study were to determine the prevalence and contributing factors of hearing loss among airport workers. A cross-sectional study was carried out at an airport in Malaysia. This study used stratified sampling method that involved 358 workers who were working in 3 different units between November 2008 and March 2009. Data for this study were collected by using questionnaires eliciting sociodemographic, occupational exposure history (previous and present), life-style including smoking habits and healthrelated data. Otoscopic and pure-tone audiometric tests were conducted for hearing assessment. Noise exposure status was categorize by using a noise logging dosimeter to obtain 8-hour Time-Weighted Average (TWA). Data was analyzed by using SPSS version 12.0.1 and EpiInfo 6.04.The prevalence of hearing loss was 33.5%. Age >40 years old (aOR 4.3, 95%CI 2.2-8.3) is the main risk factors for hearing loss followed by duration of noise exposure >5years (aOR 2.5, 95%CI 1.4-4.7), smoking (aOR 2.1, 95%CI 1.2-3.4), duration of service >5 years (aOR 2.1, 95%CI 1.1-3.9), exposure to explosion (aOR 6.1, 95%CI 1.3-29.8), exposure to vibration (aOR 2.2, 95%CI 1.1-4.3) and working in engineering unit (aOR 5.9, 95%CI 1.1- 30.9). The prevalence rate ratio of hearing loss for nonsmokers aged 40 years old and younger, smokers aged 40 years old and younger, non-smokers older than 40 years old and smokers older than 40 years old was 1.0, 1.7, 2.8 and 4.6 respectively. This result contributes towards better understanding of risk factors for hearing loss, which is
relatively common among Malaysian workers
Glycoconjugate biochemistry: structure-function relationship
Get PDFGlycoconjugates are ubiquitously distributed in nature and have been
im plicated in distinctly significant biological functions including energy resource, protection, lubrication, structural support, cell adhesion, molecular and cellular recognition, receptors for hormones and viruses. In this thesis studies on the following glycoconjugates are presented: bacterial, Micrococcus
lysodeikticus, cell wall, simian cervical mucin, human pulmonary mucin, bovine
gallbladder mucin, sperm surface glycoproteins and glycoconjugates of malarial parasite, Plasm odium falciparum . The information obtained on the structure of these complex carbohydrates utilising chemical, enzymatic, immunological and
physical methods provided insight into the understanding, in particular, of structure-function relationship, degradation and biosynthesis of these macromolecules. Studies on model com pounds and analytical methods, all of
which are vitally important tools in the study of glycoconjugates, are also
described.The carbohydrate prosthetic group of M icrococcus lysodeikticus cell wall
was shown to consist of a glycan moiety linked to the protein and an antigenic
polysaccharide attached to the glycan m oiety of the peptidoglycan through a
phosphodiester group. A variety of model com pounds were synthesised to
establish the structure of the carbohydrate moiety as well as to study the kinetics of the acid hydrolysis of the phosphodiester group linked to muramic acid and to the reducing terminus of glucose. The study was performed on Micrococcus lysodeikticus cell wall polymer resistant to lysozyme, elaborating the structural requirement for stability to the enzyme. Furthermore, a water soluble polymer from the Micrococcus lysodeikticus cell wall was isolated and characterised, a novel observation. The study on this polymer suggested the possible deficiencies in the biosynthesis or possible autolysis of the cell wall polymer.A large number of model com pounds were chemically synthesised to identify the structural features of the cell wall peptidoglycans and those of the antigenic polysaccharide. In addition, several compounds were chemically synthesised to obtain the model com pounds necessary to conduct kinetic studies to define the type of linkage, i.e., differentiate between the
monophosphate or pyrophosphate, between the cell wall polysaccharide and
peptidoglycan, more precisely the linkage between muramic acid 6-phosphate
of the peptidoglycan and the reducing terminal residue, glucose, of the
polysaccharide.Comprehensive studies on simian cervical mucus glycoproteins were perform ed to relate the morphological and biophysical changes during the ovarian cycle to biochemical changes in the biochemical structure of the mucus. The biophysical and biochemical changes in the mucus are of vital significance in human reproductive physiology. The bonnet monkey produces
larger amounts of mucus and its ovarian / menstrual cycle is similar to that of human. The extensive structural investigations on cervical glycoproteins of different phases of the ovarian cycle led to the elucidation of several interesting and novel structural features, such as the linkage of sialic acid to ultimate Nacetylgalactosoamine residues linked to serine or threonine of the protein core as well as to the galactose residues further away from the protein core. These two differentially linked sialic acid residues have been postulated to contribute to the function of mucus glycoproteins as well as to biophysical properties. Similarly, sulfate groups in the glycoprotein safeguard the integrity of the
m acromolecule. Also, a novel type of a-galactosyl-linkage has been shown by
us in the midcycle cervical mucus. In addition, it was also discovered by us that
a-linked N-acetylgalactosoam ine residues were present in the midcycle cervical glycoproteins. The functional role of these a -linked residues is not clear. It is believed that this type of galactose residues are uncommon in man and old world monkey. The structural studies on luteal phase glycoproteins demonstrated significant differences in the structure of oligosaccharides. Similarities in the oligosaccharides structures were also observed. Polyclonal antibodies to midcycle bonnet monkey glycoproteins clearly demonstrated the functional role of the cervical mucus. It was discovered by us that the glycoproteins that line the cervical mucus channels are responsible for sperm
migration. Our study, first of its nature, distinctly defined the functional role of
the cervical glycoproteins and the significant contributions of the sugar
residues. It was further shown that sperm penetration was inhibited by the
antibody-mucus complex. The antibody against the midcycle glycoprotein
cross-reacted with the midcycle mucus and weakly with the luteal phase mucus. Similarly the antibody against the luteal phase glycoprotein crossreacted
with the luteal phase as well as, though weakly, with the midcycle mucus. These observations clearly suggested some common epitopes amongst glycoproteins of different phases of the ovarian cycle, interalia some common structural features in the glycoproteins of the different phases. The goal of this study, i.e., to relate the structure function relationship of the cervical mucus glycoproteins, was achieved. Initial work on sperm surface glycoproteins and gall bladder glycoprotein have been performed. Currently pursued research indicates that sperm surface glycoproteins may provide useful m eans to
regulate fertility.Over a period of several years, extensive and detailed biosynthetic, biochemical and immunological studies were pursued to elaborate the role of the carbohydrate moiety of the variant glycoprotein antigens of the malarial parasite, Plasmodium falciparum . For many years it was known that sugars,such as N-acetylglucosamine, mannose and galactose w ere incorporated in several antigens including the vaccine candidates, i.e., M SP-1, 195 kDa
glycoprotein, and MSP-2, 43-52 kDa glycoprotein. Labelled sugars were
metabolically incorporated in MSP-1 and MSP-2. The labelled glycoproteins
from the asexual erythrocytic stages of Plasmodium falciparum were purified to
homogeneity by SDS-PAGE and the labelled sugars were identified. It was
further observed that N -acetylglucosamine was incorporated in different glycoproteins in much more significant amounts than mannose, and mannose was in abundance compared to galactose. From these observations it was clear that N -acetylglucosamine was incorporated in glycoproteins in abundance in regions other than anchor as well. Our researches, for the first time, showed that N -acetylglucosamine was the sugar residue that provided the O-glycosyl type linkage to serine or threonine. Thus, the linkage point between the sugar moiety and the protein-core was defined. The studies on the carbohydrate moiety of these glycoproteins have become significantly important as these may provide clues to the immune evasion properties of the variant lycoprotein antigens.Reviews on secretory glycoproteins have been published. A review by us on malarial glycoprotein is in press. More recently a research article on the integration of glycans utilising glycophosphatidylinositol into plasma membranes and their possible role and interaction with the targeted cells has been discussed.Published Work:
| p.4 | Synthesis of the 3- and 4-methyl, 3,4-dimethyl, and 3,4,6-trim ethyl ethers
of methyl 2-acetamido-2-deoxy-a-D -m annopyranoside.Nasir-ud-D in and
Rodger W. Jeanloz. Carbohydr. Res. (1973) 28, 243-251.
| p.13 | Synthesis of the 6-methyl and 3,6-and 4,6-dimethyl ethers of methyl 2-
acetam ido-2-deoxy-a-D -mannopyranoside. Nasir-ud-Din, Dorothy
A. Jeanloz and Roger W. Jeanloz. Carbohydr. Res.( 1974) 38, 205-216.
| p.25 | The chemical structure of a fragment of Micrococcus lysodeikticus cellwall. Nasir-ud-Din and Roger W. Jeanloz. Carbohydr. Res. (1976) 47,
245-260.
| p.41 | Further purification and characterization of a circulating antigen in
schistoso-iasis. T.E. Nash, Nasir-ud-Din and R.W. Jeanloz. J. Immunol.
(1977) 119, 1627-1633.
| p.48 | Amino- sugar phosphates from the cell wall of Micrococcus lysodeikticus.
Nasir-ud- Din, Masashi Tomoda and Roger W. Jeanloz. Carbohydr. Res. (1977) 57, C1-C3.
| p.51 | Studies of a carbohydrate-containing polymer from Cordia myxa. M.K.
Bhatty, D.H. Shah, M.A. Saeed and Nasir-ud-Din. Pak.J. Sci. Res.
(1978) 21, 162-163.
| p.53 | Glycoproteins from Ustilago tritici. Nasir-ud-Din, J.K.W old, I. Matsumato,
M I D. Chughtai and E. Walker-Nasir. Phytochem istry (1978) 17, 2059-
260.
| p.55 | Synthesis of methyl (or propyl) 2-acetamido-2-deoxy D -glucopyran-oside
6-(a-D -glucopyranosyl phosphate) and derivatives for the study of the
phosphoric ester linkage in Micrococcus lysodeikticus cell wall.
Christopher D. Warren, Nasir-ud-Din and Roger W. Jeanloz. Carbohydr.
Res. (1978) 64, 43-56.
| p.69 | The chemical structure of a glycoprotein from the cervical mucus 89
(premenstrual) of Macca radiata. Nasir-ud-Din, R oger W. Jeanloz,
Varnon N. Reinhold, James D. Moore and Janet W. M cArthur.
Glycoconjugate Research (1979); J. Gregory and R.W. Jeanloz (eds),
Academ ic Press, New York, Vol. 1, 241- 244.
| p.73 | Role of synthetic phosphate diesters in study of bacterial cell wall. 73
Christopher D. Warren. Nasir-ud-Din, Vernon N. Reinhold and Roger W.
Jeanloz. Glycoconjugate Research (1979) J. Gregory and R.W. Jeanloz
(eds), Academic Press, New York, Vol. II, 839-841.
| p.76 | Immunologically induced alteration in the morphology of the cervical 76
mucus of Macaca radiata. N a sir-ud-Din, Theodore E. Nash , Roger W.
Jeanloz, Janet W. M cArthur and Dianne M. Gminski. Fertil. Steril. (1979)
32, 230-232.
| p.79 | Cervical mucus glycoproteins in reproduction: Study of cervical mucus 79
from Macaca radiata. Nasir-ud-Din, Roger W. Jeanloz, Theodore E. Nash and Janet W. McArthur. Glycoconjugate. (1979), R. S chauer et al.,(eds.) George Theime, Stuttgart, 548-549.
| p.81 | Changes in the cervical mucus of the bonnet monkey (Macaca radiata) during the menstrual cycle. Nasir-ud-Din, Janet W. McArthur and Roger W. Jeanloz. Animal Models for Research on Contraception and Fertility.
(1979). Nancy J. Alexander (ed.) Harper and Row, Hargerstown, 396-403.
| p.89 | Changes in the glycoprotein structure of the cervical mucus of the bonnet monkey during the menstrual cycle: Study of the premenstrual-phase mucus. Nasir-ud-Din, Roger W. Jeanloz, Vernon N. Reinhold and Janet W. McArthur. Carbohydr. Res. (1979) 75, 349-356.
| p.98 | Isolation and purification of sperm atozoon-surface glcoprotein from Macaca radiatata. Nasir-ud-Din, Evelyne Walker-Nasir, Roger W. Jeanloz and Moshe Shalev. Carbohydr. Res. (1980) 85, C7-C9.
| p.101 | Studies on bonnet monkey cervical mucus: The effect of proteases on
mucus glcoproteins of Macaca radiata. Nasir-ud-Din, Roger W. Jeanloz, John R. Vercelotti and Janet W. McArthur. Biochim. Biophys. Acta (1981) 678, 483-496.
| p.115 | Bonnet monkey cervical mucus glycoproteins: Study of the minor
glycoprotein components of the periovulatory phase mucus.
Nasir-ud-Din, Roger W. Jealoz and Janet W. M cArthur. Gtycoconjugates (1981) T. Yamakawa, T. Osawa and S. Handa (eds),
Japan Scientific Societies Press, Tokyo, 328-329.
| p.117 | Immunologically induced changes in macaque cervical mucus function:
Inhibition of sperm penetration. Nasir-ud-Din Evelyne Walker-Nasir, Janet W. M cArthur, Theodore E. Nash, Moshe Shalev and Roger W. Jeanloz . Fertil. Steril. (1982) 37, 4 3 1 -4 3 5 .
| p.122 | Isolation and characterization of bonnet monkey sperm surface
qlycoproteins. Moshe Shalev, Nasir-ud-Din and Anwar Johar. Fed. Proc.
(1 9 8 2 )4 1 .
| p.123 | Fractionation of oligosaccharides containing sialic acid by liquid
chromato-graphy on amino silica gel. G eneveive Lamblin, Andre Klein,
A rnold Boersma, Nasir-ud-Din and Philppe Roussel. Carbohydr. Res.
(1983) 118, C1-C4.
| p.127 | Bonnet monkey cervical mucus glycoproteins: Study of the minor
glcoprotein components of periovulatory phase mucus. Nasir-ud-Din, Roger W. Jeanloz, Philippe Roussel and Janet W. M cArthur. Biol. Reprod. (1983) 28, 1189-1199.
| p.138 | Bonnet monkey cervical mucus: Isolation and charaterization of
oligosacchaides from the Pronase-treated periovulatory phase glycoprotein. Nasir-ud-Din, E. W alker-N asir and M.A.K. Malghani. G lycoconjugates (1983) M .A.Chester et. al., (eds) Rahms, Lund, 603-
604.
| p.140 | Role of epithelial secretions: G lycoproteins structure-function
relationship. Nasir-ud-Din, M.A.K. M alghani and M.S. Ajaz. Proc. Poly.
Sci. Sym. (1983) 2, 75-80.
| p.146 | Modern trends: Glycoproteins. Nasir-ud-Din and E. Walker-Nasir. J. Univ. Bal. (1984) III, 1-11.
| p.157 | The chemical structure of a high molecular weight fragment of
Micrcoccus lysodeikticus cell wall. Nasir-ud-Din, E. W alker-N asir, S.AItaf
Hussain, M.A.K. M alghani, T. Zamir and S.M. Ajaz. J. Univ. Bal. (1984) III, 55-72.
| p.175 | Study of aspargine-linked glycopeptide derivatives by field-desorption
mass spectrometry. Evelyne W alker-Nasir and Nasir-ud-Din. J. Univ. Bal. (1984) III, 47-54.
| p.183 | The phosphate diester linkage of peptidoglycan polysaccharide moieties
of Micrococcus lysodeikticus cell wall. Nasir-ud-Din, Michel Lhermitte,
Geneviene Lamblin and Roger W. Jeanloz. J. Biol. Chem. (1985) 260, 9981-9987.
| p.190 | Isolation, purification and partial characterization of a glycoprotein from
plasma secretion. Nasir-ud-Din, M.A.K. Malghani and M.S. Ajaz. J. Chem. Soc. Pak. (1985) 7, 179-183.
| p.195 | Glycoproteins in reprodution: Sperm surface and seminal plasma
glycoproteins. Nasir-ud-Din. J. Univ. Bal. (1885) IV, 89-105.
| p.212 | Glycoprotein structure-function relationship: Study of epithelial cell
secretion. Nasir-ud-Din, M. Saleh Ajaz, and Irfanullah Khan. Natural Product Chemistry (1986) Atta-ur-Rahm an (ed.) Springer-Verlag, Berlin, 281-306.
| p.238 | Isolation and partial characterization of human gallbladder mucin glycoprotein. Nasir-ud-Din, M.A.K. M alghani, M. Saleh Ajaz, S. Altaf Hussain and Abdullah Jan. G lycoconjugates (1985) E.A. Davidson et.al., (eds.) Praeger, New York, 82-83.
| p.240 | Structure of sialyloligosaccharides isolated from bonnet monkey (Macaca radiata) cervical mucus exhibiting multiple blood group activities. Nasir-ud-Din, Roger W. Jeanloz, Genevieve Lamblin, Philippe Roussel, Herman van Hallbeek, Johanna H.G.M. Mutsaers and Johannes F.G. Vliegenthart. J. Biol.Chem. (1986 ) 261, 1992-1997.
| p.247 | Epithelial secretions: Mucus glycoproteins. Nasir-ud-Din, Essays on Science (1986) H.M. Saeed (ed.) Hamdard Foundation Press, Karachi, Pakistan. 247-263.
| p.264 | Localization of sulphate groups in a glycoprotein from hum an bronchial
mucus of patients suffering from chronic bronchitis. Nasir-ud-Din, M.A.K.
Malghani, M.Kasi, M. Lhermitte, P. Roussel and Evelyne Walker- Nasir. J. Chem. Soc. Pak. (1986) 8, 201 -2 08.
| p.272 | Structure of acidic oligosaccharides isolated from Pronase-treated glycoprotein of bonnet-monkey (Macaca radiata) cervical mucus. Nasir-ud-Din. Carbohydr. Res. (1987) 159, 95-107.
| p.285 | Glycoproteins: Biologically active macromolecules. Nasir-ud-Din,
Evelyne W alker-N asir, M.A.K. Malghani anf S. A ltaf Hussain. J. Chem. Soc. Pak. (1988) 10, 471-481.
| p.296 | Isolation, purification and partial characterization of neutral
oligosaccharides from bovine gallbladder mucin glucoprotein. Nasir-ud-Din, M .Saleh Ajaz, S.Altaf Hussain, Bernard F. Smith and J. Thom asam ont. J. Chem. Soc. Pak. (1988) 10, 11-18.
| p.304 | Partial charaterization of neutral oligosaccharides from normal human
brochial secretion. Nasir-ud-Din, Evelyne Walker-Nasir, Mahmood Raza and Abdul M alik Kasi. J. Chem. Soc. Pak. (1988) 10, 33-41.
| p.313 | Chemical structure of shark cartialge chondrointin sulfate. Anund Hallen. Nasir-ud-Din and Roger W. Jeanloz. J. Chem. Soc. Pak.(1989) 11, 168-177.
| p.323 | Carbohydrtae moiety of Plasmodium falciparum . Nasir-ud-Din,
R. Drager-Dayal, C. Decrind, D C. Hoessli, M.H. Qazi, G. Del Guidice and P H. Lambert. J. Chem. Soc. Pak. (1990) 12, 344-350.
| p.330 | Studies of cervical glycoproteins: Isolation and characterization of neutral oligosaccharides from Pronase-treated glycoproteins of bonnet monkey (Macca radiata). Nasir-ud-Din, S. A ltaf Hussain, Roger W. Jeanloz and Evelyne Walker-Nasir. Carbohydr. Res. (1990) 205, 444-
452.
| p.339 | Presence of O-glycosylated glycoproteins in the Plasmodium falciparum parasite. R. Dayal-Drager, Daniel C.Hoessli, C hristine Decrind,
G uiseppe Del Guidice, Paul-Henri Lambert and Nasir-ud-Din. Carbohydr. Res. (1991) 209, C5-C8.
| p.343 | Plasmodium falciparum synthesizes O-glycosylated glycoproteins
containing O-linked N-acetylglucosam ine. Nasir-ur-Din, Renu Drager-Dayal, C hristine Decrind, Bei-Hong Hu, Giuseppe Del Guidice and Daniel Hoessli. Biochem. Int. (1992) 27, 55-64.
A water soluble peptidoglycan-containing polymer from the Micrococcus
lysodeikticus cell wall. Nasir-ud-Din, Fayyaz-ud-D in and Evelyne
Walker-Nasir. Biochem. Soc. Trans. (1992) 20, 388S.
| p.343 | Plasmodium falciparum synthesises O -glycosylated glycoproteins
containing O -linked N-acetylglucosam ine. Nasir-ur-Din, Renu Drager-
Dayal, C hristine Decrind, Bei-Hong Hu, G iuseppe Del G uidice and
Daniel Hoessli. Biochem. Int. (1992) 27, 55-64.
| p.353 | A water soluble peptidoglycan-containing polym er from the M icrococcus
lysodeikticus cell wall. Nasir-ud-Din, Fayyaz-ud-D in and Evelyne
Walker-Nasir. Biochem. Soc. Trans. (1992) 20, 388S.
| p.354 | Plasmodium falciparum synthesises 43000 daltons protein containing O-linked glucosam ine. Nasir-ud-Din, M. Hassan, M.H. Qazi, Fayyaz-ud-Din, G. Sinaldi, D. Hoessli and E. Walker-N asir. Biochem. Soc. Trans.
(1992) 20, 388S.
| p.355 | Structure of a Micrococcus lysodeikticus cell wall fragment containing
phosphorylated sugars. M. Siddiqui, M.H. Qureshi, M.A.K. M alghani, . Walker-Nasir, ayyaz-ud-D in and Nasir-ud-Din. iochem. Int. (1992) 26, 509-519
| p.366 | Further studies on cervical glycoproteins: Isolation and characterization of oligosaccharides from follicular phase cervical glycopproteins of
bonnet monkey. Nasir-ud-Din, Fayyaz-ud-D in and E. W alker-Nasir. Biochem. Soc. Trans. (1993) 21, 186S.
| p.367 | The chemical structure of a high molecular weight fragment of Micrococcus lysodeikticuss cell wall. Nasir-ud-Din, E. Walker-Nasir, Zahid Mahmood and Fayyaz-ud-Din. J. Chem. Soc. Pak. (1993) 15, 71-
77.
| p.374 | Further studies on Plasmodium falciparum glycoproteins: Charact-rition
of 195 kDa glycoprotein. M.H. Qureshi, M.H. Qazi, G. Senaldi, D.C. Hoessli and Nasir-ud-Din. Biochem. Soc. Trans. (1993) 21, 185S.
| p.375 | A water-soluble fragment of Micrococcus lysodeiticus cell wall,
Nasir-ud-Din, R.W. Jealnloz, E. Walker-Nasir, Fayyaz-ud-Din, Zahid
Mahmood, K. Mahmood, A.H. Khan and F.S. Rahmani. Biochem. Mol. Biol. Int. (1994) 32, 1129-37.
| p.384 | Galactose residues in Plasmodium falciparum glycoprotein: Incorporation
and elimination. M.A. Qazi, G. Senaldi F. Tacchini-Cottier, M.H. Qazi,
Fayyaz-ud-D in, D C. Hoessli, E. W alker-Nasir and Nasir-ud-Din.
Biochem. Soc. Trans. (1994) 22, 362S.
| p.385 | Sialytransferases of the bonnet monkey cervical epithelium : Isolation and
characterization. Nasir-ud-Din, E. Walker-Nasir, Fayyaz-ud-D in, Z. Mahmood and A.H. Khan. Biochem. Soc. Trans. (1994) 22, 363S.
| p.386 | Role of Cell surface carbohydrates in malaria. Nasir-ud-Din, M.A. Qazi,
G. Senaldi, A.H. Khan, K. Mahmood, Z. Mahmood, M.H. Qazi, D.C.
Hoessli and E. Walker-Nasir. Pure & Appl. Chem. (1994) 66, 2259-2262.
| p.390 | Integration of mycobacterial lipoarabinom annans into glycosyphosphatidylinositol-
rich domains of lymphomonocytic cell plasma membranes.
Subburaj llangum aran, Stephan Am i, Monique Poincelat, Jean-Marc
Theler, Patrik J. Brennan, Nasir-ud-Din and Daniel C. Hoessli. J. Immunol. (1995) 155, 1334-1342.Unpublished Work:
| p.399 | Structural strudies on sialylated oligosaccharides of bonnet monkey
(Macaca radiata) luteal phase cervical mucus. Z. Mahm ood, K. Mahmood, Abbas H. Khan, Javed Gondal, Evelyne Walker-Nasir, Daniel
C. Hoessli, Elisabeth Rungger-Braendle, Roger W. Jeanloz and Nasirud-Din.
| p.428 | Carbohydrate moiety of Plasmodium falciparum glycoproteins: the nature of the carbohydrate-peptide linkage in the 42-48 kDa glycoprotein. A.H. Qazi, M.H. Qazi, D.C. Hoessli, G. Senaldi, A.H. Khan, J. Gondal, E.
Walker-Nasir and Nasir-ud-Din.
| p.458 | Glycobiology of Plasmodium falciparum', an emerging area of research.
D.C. Hoessli, E.A. Davidson, R.T. Schwarz and Nasir-ud-Din
Photograph of a bust of the author Tasma
No full textPhotograph of a bust of the author Tasma (Jessie Catherine Couvreur). Pencilled on verso of photo 'Tasma - enlargement of an original lent to H.M. Green? by Mrs Erdos, a neice of Tasma
Isogeometric analysis for multi-patch structured Kirchhoff–Love shells
No full textWe present an isogeometric method for Kirchhoff–Love shell analysis of shell structures with geometries composed of multiple patches and which possibly possess extraordinary vertices, i.e. vertices with a valency different to four. The proposed isogeometric shell discretisation is based on the one hand on the approximation of the mid-surface by a particular class of multi-patch surfaces, called analysis-suitable G1 (Collin et al., 2016), and on the other hand on the use of the globally C1-smooth isogeometric multi-patch spline space (Farahat et al., 2023). We use our developed technique within an isogeometric Kirchhoff–Love shell formulation (Kiendl et al., 2009) to study linear and non-linear shell problems on multi-patch structures. Thereby, the numerical results show the great potential of our method for efficient shell analysis of geometrically complex multi-patch structures which cannot be modelled without the use of extraordinary vertices.Funding Information: The authors wish to thank the anonymous reviewers for their comments that helped to improve the paper. A. Farahat and M. Kapl have been supported by the Austrian Science Fund (FWF) through the project P 33023-N. H.M. Verhelst is grateful for the funding from Delft University of Technology. J. Kiendl has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation program (grant agreement No 864482). Additionally, the authors are grateful for the support from the developers of the Geometry + Simulation Modules, in particular from A. Mantzaflaris (Inria Sophia Antipolis-Méditerranée). Funding Information: The authors wish to thank the anonymous reviewers for their comments that helped to improve the paper. A. Farahat and M. Kapl have been supported by the Austrian Science Fund (FWF) through the project P 33023-N . H.M. Verhelst is grateful for the funding from Delft University of Technology . J. Kiendl has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement No 864482 ). Additionally, the authors are grateful for the support from the developers of the Geometry + Simulation Modules, in particular from A. Mantzaflaris (Inria Sophia Antipolis-Méditerranée).Numerical AnalysisShip Hydromechanics and Structure
Samuel H.M. Byers; Poet; Author; Diplomat; Oskaloosa; Iowa; Mahaska County; Iowa
No full textThis is a photograph taken of Samuel H.M. Byers at the onset of the Civil War in 1861. Byers served in the Union Army during the Civil War and gained a great deal of inspiration for his poetic writing during the war. Byers's most famous work is a poem entitled "Sherman's March to the Sea" recapping events that took place during this famous piece of American history. Byers is also credited with writing the state song of Iowa, played to the melody of "O, Christmas Tree". After gaining fame and fortune from his writing, Byers pursued a career in diplomacy, serving in the U.S. Consulate in Switzerland and Italy. Byers then came back to the U.S., living out the remainder of his days in Los Angeles, California. Byers died in 1933, at the age 95
Fourier Series in a Non-polar Coordinate System
Get PDFNumerical computations of functions in a grid on the surface of a sphere and the integration of corresponding partial differential equation are very important tasks among the researchers in the field of computational mathematics. Although the spherical polar coordinate system is the most elegant tool in this respect, the problems due to polar concentration near the North and South poles brings much difficulties to the computational scientists. Cubed sphere concept is one of the techniques used recently in the processing of searching remedies for such problems. In earlier works, the second author of this article has constructed weakly and fully orthogonal spherical harmonics in a non-polar coordinate system developed based on the 'cubed-sphere' concept Then, we established relational properties between the two sets of spherical harmonics and between the functions defined in the six faces of the cubed sphere. Fourier series techniques could be applied to a wide array of mathematical and physical problems. In mis work, we express the Fourier series of a spherical function in terms of the weakly orthogonal spherical harmonics of the non-polar coordinate system. Also, we discuss the method of finding the Fourier series coefficients efficiently using the relational properties established
L'Image Du Buddha Dans L'Art Lao
Get PDFText and photos of Buddha images in LaosL'Image Du Buddha Dans L'Art Lao. Vientiane: H.M. Demain, 197
Analysis of New Type of Second-order Fractional Linear Multi-step Method with Improved Stability
Get PDFWe present and investigate a new type of implicit fractional linear multi-step method of order two for fractional initial value problems. The method is obtained from the second-order superconvergence of the Grünwald-Letnikov approximation of the fractional derivative at a non-integer shift point. The method coincides with the backward difference method of order two for the classical initial value problem when the order of the derivative is one. The weight coefficients of the proposed method are obtained from the Grünwald weights and are hence computationally efficient compared with that of the fractional backward difference formula of order two. The stability properties are analyzed and it is shown that the stability region of the method is larger than that of the fractional Adams-Moulton method of order two and the fractional trapezoidal method. Numerical results and illustrations are presented to justify the analytical theories
- …
