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Articles 121 - 150 of 11217
Full-Text Articles in Life Sciences
Tomicus Piniperda (Coleoptera: Scolytidae) Reproduction And Behavior On Scotch Pine Christmas Trees Taken Indoors, Robert A. Haack, Robert K. Lawrence
Tomicus Piniperda (Coleoptera: Scolytidae) Reproduction And Behavior On Scotch Pine Christmas Trees Taken Indoors, Robert A. Haack, Robert K. Lawrence
The Great Lakes Entomologist
Tomicus piniperda, the pine shoot beetle, is an exotic insect that was first found in North America in 1992. A federal quarantine currently restricts movement of pine products, including Christmas trees, from infested to uninfested counties. We conducted a study to determine if T. piniperda would re- produce in Christmas trees that were cut and taken indoors during the Christmas season. Twelve Scotch pine, Pinus sylvestris, Christmas trees infested with overwintering T. piniperda beetles were cut in Indiana in early December 1993 and taken to Michigan. Four trees were dissected immediately, while the other 8 trees were taken …
Habitat Associations Of Sympatric Violet-Feeding Fritillaries (Euptoieta, Speyeria, Boloria) (Lepidoptera: Nymphalidae) In Tallgrass Prairie, Ann B. Swengel
Habitat Associations Of Sympatric Violet-Feeding Fritillaries (Euptoieta, Speyeria, Boloria) (Lepidoptera: Nymphalidae) In Tallgrass Prairie, Ann B. Swengel
The Great Lakes Entomologist
At 106 tallgrass prairies in the midwestern USA, 18,055 individuals of six fritillary species (Lepidoptera: Nymphalidae) were counted in 552.9 hr and 987.1 kill of transect survey effort from 14 June to 13 September during 1988-96. The relative abundance of Euptoieta claudia, Speyena cybele, S. aphrodite, S. idalia, Boloria selene, and B. bellona was analyzed for significant patterns relative to five habitat factors. Topographic diversity (i.e., whether the site was uniform or contained both uplands and lowlands) produced the most significant effects. Prairie patch size and vegetation type (wet, mesic, dry) also produced numerous significant patterns. When management type was …
Clearwing Moths Captured By Ultraviolet Light Traps In Southern Ohio (Lepidoptera: Sesiidae), Foster Forbes Purrington, David J. Horn
Clearwing Moths Captured By Ultraviolet Light Traps In Southern Ohio (Lepidoptera: Sesiidae), Foster Forbes Purrington, David J. Horn
The Great Lakes Entomologist
Trapping with ultraviolet light in mixed-oak forests of Lawrence and Vinton Counties, Ohio in 1995 and 1996 yielded 46 Synanthedon acerni and four Synanthedon arkansasensis, a clearwing moth record new for the state.
Resistance Of Scotch Pine Varieties To Zimmerman Pine Moth (Lepidoptera: Pyralidae) And Its Impact On Sales In A Choose And Cut Christmas Tree Plantation, Clifford S. Sadof
Resistance Of Scotch Pine Varieties To Zimmerman Pine Moth (Lepidoptera: Pyralidae) And Its Impact On Sales In A Choose And Cut Christmas Tree Plantation, Clifford S. Sadof
The Great Lakes Entomologist
Nine varieties of Scotch pine, Pinus sylvestris, were assessed for their susceptibility to Zimmerman pine moth, Dioryctria zimmermani, in a choose and cut Christmas tree plantation. Trees were examined for wounds to estimate their susceptibility to this pest 7 years after planting in the field. Numbers of trees remaining after seasonal sales in years 7 and 8 were used to estimate marketability of each variety. Infestation rates varied significantly among varieties (11-75%). After sales, proportions of trees remaining also varied significantly among varieties (7-52%). Although Belgian trees were the most moth resistant, they were the least purchased by the …
The Mayflies (Ephemeroptera) Of Tennessee, With A Review Of The Possibly Threatened Species Occurring Within The State, L. S. Long, B. C. Kondratieff
The Mayflies (Ephemeroptera) Of Tennessee, With A Review Of The Possibly Threatened Species Occurring Within The State, L. S. Long, B. C. Kondratieff
The Great Lakes Entomologist
One hundred and forty-three species of mayflies are reported from the state of Tennessee. Sixteen species (Ameletus cryptostimulus, Choroterpes basalis, Baetis virile, Ephemera blanda, E. simulans, Ephemerella berneri, Heterocloeon curiosum, H. petersi, Labiobaetis ephippiatus, Leptophlebia bradleyi, Macdunnoa brunnea, Paraleptophlebia assimilis, P. debilis, P. mollis, Rhithrogenia pellucida and Siphlonurus mirus) are reported for the first time. Rare and vulnerable species occurring in the state are also discussed. This represents the first comprehensive statewide list of mayflies for Tennessee.
New Records Of Michigan Cicadidae (Homoptera), With Notes On The Use Of Songs To Monitor Range Changes, David Ciszek Marshall, John R. Cooley, Richard D. Alexander, Thomas E. Moore
New Records Of Michigan Cicadidae (Homoptera), With Notes On The Use Of Songs To Monitor Range Changes, David Ciszek Marshall, John R. Cooley, Richard D. Alexander, Thomas E. Moore
The Great Lakes Entomologist
We present records of Diceroprocta vitripennis, Tibicen chloromera, and Tibicen pruinosa (new state record) in Michigan. Monitoring geographic range changes and population size differences by song suggests several population situations for cicadas: (1) sizable populations in most areas of apparently good habitat; (2) widely separated single individuals or small populations on the edges of populated regions, representing range extensions that may be of limited duration; (3) one or a few individuals present only once, probably transferred in soil on roots, and ultimately unsuccessful. Species- specific calling songs allow sensitive measurement of species' range changes.
Discovery Of An Isolated Population Of Anax Longipes In Michigan (Odonata: Aeshnidae), Michael A. Kielb, Mark F. O'Brien
Discovery Of An Isolated Population Of Anax Longipes In Michigan (Odonata: Aeshnidae), Michael A. Kielb, Mark F. O'Brien
The Great Lakes Entomologist
Anax longipes is a large aeshnid dragonfly previously unknown from Michigan. Adults and larvae were found in abundance at a series of experimental ponds within the E.S. George Reserve in Livingston County, Michigan.
Moths Of The Douglas Lake Region (Emmet And Cheboygan Counties), Michigan: V. Crambidae And Pyralidae (Lepidoptera), Brian Scholtens
Moths Of The Douglas Lake Region (Emmet And Cheboygan Counties), Michigan: V. Crambidae And Pyralidae (Lepidoptera), Brian Scholtens
The Great Lakes Entomologist
187 species of Pyraloidea from Emmet and Cheboygan Counties in Michigan are documented, providing the first extensive list of any microlepidopteran group for any part of the state. This list complements those of the well studied macrolepidoptera of the region, and provides a starting point for examining the remainder of the microlepidopteran fauna.
Epizootiology Of The Fungal Pathogen, Zoophthora Phytonomi (Zygomycetes: Entomophthorales) In Field Populations Of Alfalfa Weevil (Coleoptera: Curculionidae) Larvae In Illinois, Marilyn J. Morris, Stephen J. Roberts, Joseph V. Maddox, Edward J. Armbrust
Epizootiology Of The Fungal Pathogen, Zoophthora Phytonomi (Zygomycetes: Entomophthorales) In Field Populations Of Alfalfa Weevil (Coleoptera: Curculionidae) Larvae In Illinois, Marilyn J. Morris, Stephen J. Roberts, Joseph V. Maddox, Edward J. Armbrust
The Great Lakes Entomologist
The influence of the fungal pathogen, Zoophthora phytonomi, on larvae of the alfalfa weevil, Hypera postica, was studied in three alfalfa fields in Illinois. Disease epizootics occurred in all three fields and disease onset was ob- served within a fairly narrow range of degree day accumulations. At the height of each epizootic, percentages of infected larvae were between 80 and 100%, and the fungus contributed to the collapse of the weevil population in each field. Percent parasitism by the larval parasitoids, Bathyplectes curculionis and B. anurus, was lower in our fields than is common in mid-season alfalfa …
Effects Of Hybrid Poplar (Salicaceae) Clone And Phenology On Gypsy Moth (Lepidoptera: Lymantriidae) Performance In Wisconsin, James J. Kruse, Kenneth F. Raffa
Effects Of Hybrid Poplar (Salicaceae) Clone And Phenology On Gypsy Moth (Lepidoptera: Lymantriidae) Performance In Wisconsin, James J. Kruse, Kenneth F. Raffa
The Great Lakes Entomologist
Gypsy moth (Lymantria dispar) developmental interactions with two hybrid Populus species clones were studied in laboratory trials. Significant differences in larval performance were found between clones and within the same clone at different phenological states. No larvae were able to complete development on clone NM6. All gypsy moth larvae feeding on clone NC5271 survived when leafflush was synchronized with gypsy moth eclosion in early May. However, neonates feeding on NC5271 foliage in July experienced in- creased mortality. Weights of surviving gypsy moth larvae feeding on NC5271 foliage in May versus July were not significantly different.
New Records Of Stoneflies (Plecoptera) With An Annotated Checklist Of The Species For Pennsylvania, E. C. Masteller
New Records Of Stoneflies (Plecoptera) With An Annotated Checklist Of The Species For Pennsylvania, E. C. Masteller
The Great Lakes Entomologist
Original collections now record 134 species in nine families and 42 gen- era. Seventeen new state records include, Allocapnia wrayi, Alloperla caudata, Leuctra maria, Soyedina carolinensis, Tallaperla elisa, Perlesta decipiens, P. placida, Neoperla catharae, N. occipitalis, N. stewarti, Cultus decisus decisus, Isoperla francesca, I. frisoni, I. lata, I. nana, 1. slossonae, Malirekus hastatus. Five species are removed from the list of species for Pennsylvania.
Factors Affecting Abundance Of Adult Karner Blues (Lycaeides Melissa Samuelis) (Lepidoptera: Lycaenidae) In Wisconsin Surveys 1987-95, Ann B. Swengel, Scott R. Swengel
Factors Affecting Abundance Of Adult Karner Blues (Lycaeides Melissa Samuelis) (Lepidoptera: Lycaenidae) In Wisconsin Surveys 1987-95, Ann B. Swengel, Scott R. Swengel
The Great Lakes Entomologist
At 141 pine-oak barrens in central and northwestern Wisconsin, 3,702 Karner blues (Lycaeides melissa samuelis Nabokov) were found in 81.1 hr of transect surveys during spring and 6,094 individuals in 116.6 hr during summer. Adults offive other closely related lycaenids occurred with Karner blues. The percentage of Karner blue males (of sexed individuals) correlated nega- tively with advancing date within brood, exceeded 50% on peak date within brood, but showed wide variability on a given date. Karner blues occasionally occurred up to 800 m from the nearest larval host, or in tiny, isolated host stands. However, all individuals were …
New State Record For The Riffle Beetle Microcylloepus Pusillus (Coleoptera: Elmidae), J. L. Snitgen
New State Record For The Riffle Beetle Microcylloepus Pusillus (Coleoptera: Elmidae), J. L. Snitgen
The Great Lakes Entomologist
The rime beetle Microcylloepus pusillus is reported from the Upper Peninsula of Michigan, representing a new state record.
Range Extension Of Stylogomphus Albistylus (Odonata: Gomphidae) For The Upper Peninsula Of Michigan, Michael A. Kielb, Ethan Bright, Mark F. O'Brien
Range Extension Of Stylogomphus Albistylus (Odonata: Gomphidae) For The Upper Peninsula Of Michigan, Michael A. Kielb, Ethan Bright, Mark F. O'Brien
The Great Lakes Entomologist
Larvae, exuviae, and teneral adults of Stylogomphus albistylus (Hagen) were collected from Mountain Stream, within the boundaries of the Huron Mountain Club, in the Upper Peninsula of Michigan (Marquette County). This represents the first published report of this species from the Upper Peninsula of Michigan, and only the second recorded site for the state of Michigan.
Natural Enemies Of Cranberry Fruitworm, Acrobasis Vaccinii, (Lepidoptera: Pyraudae) In Michigan Highbush Blueberries, Dogulas A. Murray, Robert D. Kriegel, James W. Johnson, Angus J. Howitt
Natural Enemies Of Cranberry Fruitworm, Acrobasis Vaccinii, (Lepidoptera: Pyraudae) In Michigan Highbush Blueberries, Dogulas A. Murray, Robert D. Kriegel, James W. Johnson, Angus J. Howitt
The Great Lakes Entomologist
A two-year study was conducted in Michigan highbush blueberries to determine the complex of parasitoids attacking cranberry fruitworm, Acrobasis vaccinii. Eight parasitoid species and one fungal pathogen were collected. Parasitism of collected hosts ranged from 6.6% to 28.1%. The more common larval parasitoid encountered was Campoletis patsuiketorum (Hymenoptera: Ichneumonidae). The more common parasitoid recovered from fruitworm hibernacula was Villa lateralis (Diptera: Bombyliidae). This study documented six unreported natural enemies of cranberry fruitworm, including C. patsuiketorum; V. lateralis; Diadegma compressum (Hymenoptera: Ichneumonidae); Compsilura concinnata (Diptera: Tachinidae); Memorilla pyste (Diptera: Tachinidae); an undescribed Microtypus species (Hymenoptera: Braconidae); and a fungal pathogen, …
Oviposition By The Banded Sunflower Moth, Cochylis Hospes (Lepidoptera: Cochylidae) In Response To Helianthus Annuus Pollen, John F. Barker, Sharon Grugel
Oviposition By The Banded Sunflower Moth, Cochylis Hospes (Lepidoptera: Cochylidae) In Response To Helianthus Annuus Pollen, John F. Barker, Sharon Grugel
The Great Lakes Entomologist
Oviposition on an artificial substrate by the banded sunflower moth Cochylis hospes Walsingham was examined in response to sunflower pollen (Helianthus annuus) and sunflower pollen extract. Sunflower pollen in quantities as small as 0.2 mg significantly reduced oviposition on an artificial substrate relative to a control without pollen. Aqueous pollen extract applied to the artificial substrate significantly reduced oviposition with respect to the control substrate that was treated with solvent. Banded sunflower moths have gained some reproductive or competitive advantage by ovipositing on the bracts of sunflower and a deterrent effect of pollen could, at least in part, have had …
Laboratory Rearing Of Lycaeides Melissa Samuelis (Lepidoptera: Lycaenidae), An Endangered Butterfly In Michigan, Catherine Papp Herms, Deborah G. Mccullough, Deborah L. Miller, Leah S. Bauer, Robert A. Haack
Laboratory Rearing Of Lycaeides Melissa Samuelis (Lepidoptera: Lycaenidae), An Endangered Butterfly In Michigan, Catherine Papp Herms, Deborah G. Mccullough, Deborah L. Miller, Leah S. Bauer, Robert A. Haack
The Great Lakes Entomologist
The Karner blue butterfly (Lycaeides melissa samuelis) is listed as a federally endangered species in the United States. It occurs in oak savanna and pine barren habitats from eastern Minnesota to New Hampshire. In 1994, we successfully reared Karner blue larvae under controlled laboratory conditions for experimental purposes, and report on those rearing methods here. We collected 20 female Karner blue adults of the spring generation from two areas in Michigan, and housed them in cages in an environmental chamber at 240 -26°C for 5 days. The female butterflies produced 154 eggs, of which 72 hatched in an average of …
Observations Of Incisalia Irus (Lepidoptera: Lycaenidael In Central Wisconsin 1988-95, Ann B. Swengel
Observations Of Incisalia Irus (Lepidoptera: Lycaenidael In Central Wisconsin 1988-95, Ann B. Swengel
The Great Lakes Entomologist
In surveys conducted during 1988-95, 164 individuals of the frosted elfin (Incisalia irus) were found, 139 of them during formal transects that totaled 92.9 hr and 179.4 km of survey effort during the frosted elfin flight period. Individuals were observed between 10 May and 14 June, with maximum . t spans in a single year of 27-31 days. Peak flight occurred just before or e beginning of peak flowering of the larval host, wild lupine (Lupinus perennis), and the first spring adults of Karner blue (Lycaeides melissa samuelis), also monophagous as larvae on wild lupine. Fourteen individuals exhibited …
Emma Lucy Braun's Forest Plots In Eastern North America, Robert Ricklefs
Emma Lucy Braun's Forest Plots In Eastern North America, Robert Ricklefs
Biology Department Faculty Works
No abstract provided.
Chemical Desulphurisation Of Sub-Bituminous High Sulphur Indonesian Coal Via Peroxyacetic Acid Treatment, Ishak M.A.M., Ismail K., Nawi M.A.M., Ismail A.F.
Chemical Desulphurisation Of Sub-Bituminous High Sulphur Indonesian Coal Via Peroxyacetic Acid Treatment, Ishak M.A.M., Ismail K., Nawi M.A.M., Ismail A.F.
ASEAN Journal on Science and Technology for Development
The chemical desulphurisation from an Indonesian high sulphur sub-bituminous Banjarmasin Haji Ali-Aliansar coal was investigated using the peroxyacetic acid (PAA), a mild oxidising agent. A mixture of hydrogen peroxide:acetic acid (i.e. 30:70 by volume ratio with 6% of hydrogen peroxide concentration) at 50°C of reaction temperature is capable of reducing the total sulphur content in the coal from 3.46% to 1.29% by weight, corresponding to the removal of up to ca. 72% of the total sulphur; both the inorganic (mainly pyrite) and organic sulphur forms, and approximately 10 to 44% of ashes in the coal. The simultaneous removal of both …
Removal Of Sulfur Dioxide From Flue Gas Using Absorbent Prepared By Water And Steam Hydration, Teong Lee Keat, Mohamed Abdul Rahman, Bhatia Subhash
Removal Of Sulfur Dioxide From Flue Gas Using Absorbent Prepared By Water And Steam Hydration, Teong Lee Keat, Mohamed Abdul Rahman, Bhatia Subhash
ASEAN Journal on Science and Technology for Development
Active absorbent for flue gas desulfurization was prepared from coal fly ash, calcium oxide (CaO) and calcium sulfate (CaSO4 ) by hydro-thermal process; steam and water hydration. The absorbents were examined and compared for its micro-structural properties. The experiments were conducted based on Design of Experiments (DOE) according to 24 factorial design. The effect of various absorbent preparation variables such as hydration period (Factor A), ratio of CaO to fly ash (Factor B), amount of calcium sulfate used (Factor C) and drying temperature (Factor D) towards the BET surface area of the absorbent were studied. The BET surface area of …
Acute Resistance Exercise Induces Sestrin2 Phosphorylation And P62 Dephosphorylation In Human Skeletal Muscle, Nina Zeng, Randall F. D'Souza, Vandre C. Figueiredo, James F. Markworth, Llion A. Roberts, Jonathan M. Peake, Cameron J. Mitchell, David Cameron-Smith
Acute Resistance Exercise Induces Sestrin2 Phosphorylation And P62 Dephosphorylation In Human Skeletal Muscle, Nina Zeng, Randall F. D'Souza, Vandre C. Figueiredo, James F. Markworth, Llion A. Roberts, Jonathan M. Peake, Cameron J. Mitchell, David Cameron-Smith
Center for Muscle Biology Faculty Publications
Sestrins (1, 2, 3) are a family of stress-inducible proteins capable of attenuating oxidative stress, regulating metabolism, and stimulating autophagy. Sequestosome1 (p62) is also a stress-inducible multifunctional protein acting as a signaling hub for oxidative stress and selective autophagy. It is unclear whether Sestrin and p62Ser403 are regulated acutely or chronically by resistance exercise (RE) or training (RT) in human skeletal muscle. Therefore, the acute and chronic effects of RE on Sestrin and p62 in human skeletal muscle were examined through two studies. In Study 1, nine active men (22.1 ± 2.2 years) performed a bout of single-leg strength …
Classifying Cancer Genome Aberrations By Their Mutually Exclusive Effects On Transcription, Jonathan B. Dayton, Stephen R. Piccolo
Classifying Cancer Genome Aberrations By Their Mutually Exclusive Effects On Transcription, Jonathan B. Dayton, Stephen R. Piccolo
Faculty Publications
Background
Malignant tumors are typically caused by a conglomeration of genomic aberrations—including point mutations, small insertions, small deletions, and large copy-number variations. In some cases, specific chemotherapies and targeted drug treatments are effective against tumors that harbor certain genomic aberrations. However, predictive aberrations (biomarkers) have not been identified for many tumor types and treatments. One way to address this problem is to examine the downstream, transcriptional effects of genomic aberrations and to identify characteristic patterns. Even though two tumors harbor different genomic aberrations, the transcriptional effects of those aberrations may be similar. These patterns could be used to inform treatment …
Application Of Back Propagation Neural Network In Predicting Palm Oil Mill Emission, Azid I.A., Yusoff A.R., Seetharamu K.N., Ahmad A.L.
Application Of Back Propagation Neural Network In Predicting Palm Oil Mill Emission, Azid I.A., Yusoff A.R., Seetharamu K.N., Ahmad A.L.
ASEAN Journal on Science and Technology for Development
The paper presents an approach to investigate and monitor the air pollution caused by the palm oil mill. A concept of dealing with the problem from its causes is used where the sources of pollution from the stack gases were examined. The main causes were from the combustion of shell fibre and of the palm oil. However, in the boiler itself, several parameters like steam load and pressure, fuel capacity and temperature also contribute to the pollution. The study uses Neural Network (NN) to simulate the process of combustion and stack gases. This neural network was trained by using the …
Use Of An Alternative Natural Weed Suppressant: Effects Of Parboiled Rice Hull Mulch On The Growth Of Container Weeds, Amy R. Fields-Taylor, Vanessa Slinger-Friedman
Use Of An Alternative Natural Weed Suppressant: Effects Of Parboiled Rice Hull Mulch On The Growth Of Container Weeds, Amy R. Fields-Taylor, Vanessa Slinger-Friedman
The Kennesaw Journal of Undergraduate Research
The Chattahoochee Nature Center (CNC) is one of the leading educational centers in Georgia about the ecology of the Chattahoochee River. Due to lack of man power, keeping down the weeds in the CNC plant nursery is one of those tasks that often gets left undone. The nursery becomes overgrown with invasive weed species. Understandably, they must sometimes resort to the use of herbicides, such as Roundup®, to keep the hundreds of native and endangered species of plants housed at CNC from being choked out by invasive weeds. This study tests the ability to suppress weed growth by use of …
Prevalence And Incidence Of Health Risk Factors Among Adolescent Girls, Kylah Pollard, Mohammed Chowdhury, Sarai Bauguess
Prevalence And Incidence Of Health Risk Factors Among Adolescent Girls, Kylah Pollard, Mohammed Chowdhury, Sarai Bauguess
The Kennesaw Journal of Undergraduate Research
Heart Disease has many different risk factors, including hypertension (high blood pressure) and high cholesterol. Research has shown that hypertension can be identified as early as adolescence, and preventative measures can be instilled in this age. However, the relationship between hypertension, high cholesterol, race, and income have not been studied in detail among adolescents. The present study analyzed the effects of different health factors on blood pressure and cholesterol levels in Caucasian and African-American girls ages 9-21 years old, the prime of adolescence. The dataset was part of a larger study completed by the National Heart, Blood, and Lung Institute …
Electrochemical Behavior Of Polycrystalline Copper During The Adsorption Of Co Abstract, Salimon J., Kalaji M.
Electrochemical Behavior Of Polycrystalline Copper During The Adsorption Of Co Abstract, Salimon J., Kalaji M.
ASEAN Journal on Science and Technology for Development
The electrochemical properties of electrode copper in carbon monoxide-saturated phosphate buffered solution were investigated. The electrochemistry of copper surface was sufficiently changed after the supporting electrolyte solution was saturated with CO. The hydrogen evolution region was depressed and shifted cathodically due to the adsorption process of CO on the copper surface in a linear or terminally bonded manner, Cu-CO . The oxidation and the reduction peaks of copper were significantly changed with two couple of redox peaks. This is due to the subsequent formation and the corresponding reduction of copper(I) and the copper carbon monoxides species. Further changed in electrochemical …
Macrophage Migration Inhibitory Factor Mediates Protease-Activated Receptor 4-Induced Bladder Pain Through Urothelial High Mobility Group Box 1, Fei Ma, Dimitrios E. Kouzoukas, Katherine L. Meyer-Siegler, David E. Hunt, Lin Leng, Richard Bucala, Pedro L. Vera
Macrophage Migration Inhibitory Factor Mediates Protease-Activated Receptor 4-Induced Bladder Pain Through Urothelial High Mobility Group Box 1, Fei Ma, Dimitrios E. Kouzoukas, Katherine L. Meyer-Siegler, David E. Hunt, Lin Leng, Richard Bucala, Pedro L. Vera
Physiology Faculty Publications
Macrophage migration inhibitory factor (MIF) mediates pain although the mechanisms are not well understood. Urothelial activation of protease activated receptor 4 (PAR4) results in urothelial MIF release, urothelial high mobility group box 1 (HMGB1) release and bladder pain in mice without bladder inflammation. All three effects are prevented by MIF inhibition while intravesical disulfide HMGB1 alone can induce bladder pain. This study utilizes genetic MIF deletion to determine whether MIF mediates PAR4-induced bladder pain and is upstream of HMGB1-induced bladder pain. Wild type (C57/BL6) and MIF knockout (KO) mice were treated with intravesical PAR4 activating peptide or disulfide HMGB1 and …
Direct Synthesis Of Ladder Wave Digital Filters With Tunable Parameters, Samad S.A.
Direct Synthesis Of Ladder Wave Digital Filters With Tunable Parameters, Samad S.A.
ASEAN Journal on Science and Technology for Development
This paper proposes a method for the synthesis of ladder wave digital filters (WDFs) directly from the digital domain. This method avoids the need for the synthesis of analog reference filters conventionally required in WDF design. This direct method allows for the determination of the WDF coefficients from the digital domain transfer function. This is similar to conventional infinite impulse response (IIR) filter coefficient determination but the WDF will give a more efficient realization. Due to the WDFs power complementary properties, a first-order ladder WDF can simultaneously realize both lowpass and highpass responses using the same structure, while a second-order …
Immobilization Of Invertase On Carboxymethylcellulose Prepared From Nata De Coco For The Inversion Of Sucrose, Fundador E.O.V., Fundador V.C. Sabularse, Revilleza M.A.J.R.
Immobilization Of Invertase On Carboxymethylcellulose Prepared From Nata De Coco For The Inversion Of Sucrose, Fundador E.O.V., Fundador V.C. Sabularse, Revilleza M.A.J.R.
ASEAN Journal on Science and Technology for Development
Nata de coco, the cellulose produced by Acetobacter aceti with coconut water as substrate, was used as starting material in the synthesis of carboxymethylcellulose after treatment with NaOH and monochloroacetic acid. The product, referred to as carboxymethyl-“nata” (CMN), had a degree of substitution of 0.76, a higher value than those previously reported. This was used in the immobilization of invertase via ionic interaction and adsorptive forces, which produced a viscous colloidal suspension. Agar was incorporated to facilitate pellet formation. Interactions between the agar and the CMN-invertase may have resulted from ionic interactions as well as H-bonding. The immobilized enzyme retained …