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The Effects Of Two Twelve-Week Training Programs On Sequential Measurements Of Blood Lipids, Hormones, Cardiovascular Function, Body Composition, And Strength In Sedentary Middle-Aged Males., Daniel Lee Blessing
LSU Historical Dissertations and Theses
A twelve-week study was conducted to determine the effects of weight training and jogging on serum lipids and hormones, cardiovascular function, body composition, and strength. Thirty-three subjects (mean age 45 + 6 years) comprised a weight training group (N = 9), running group (N = 11), and a control group (N = 13). All subjects exercised 3 days per week for 12 weeks. Statistical comparisons were completed by using a 3 x 3 ANOVA with repeated measures on time. Single Degree of Freedom Comparisons were used to examine the specific hypotheses about the differential effects across time among groups. The …
Relationship Between Gene Frequencies And Indices Of Physiological Stress In The Estuarine Gastropod, Thais Haemastoma., David Wendell Garton
Relationship Between Gene Frequencies And Indices Of Physiological Stress In The Estuarine Gastropod, Thais Haemastoma., David Wendell Garton
LSU Historical Dissertations and Theses
The relationship between individual energy budgets and genetic variability was examined in Thais haemastoma acclimated to 7.5, 20 and 35('o)/oo S at 21(DEGREES)C. Energy budgets, after the equations of Crisp (1971), were determined by measuring rates of caloric ingestion, absorption efficiencies, oxygen consumption and ammonia and primary amine excretion. Genotypes at six polymorphic loci coding for soluble enzymes, of 25 total loci assayed, were determined using starch gel electrophoresis. The polymorphic loci examined were those encoding for (alpha)-L-amino peptidase (LAP), phosphoglucomutase (PGM), glucose-6-phosophate dehydrogenase (G6PDH), a non-specific esterase (Est) and two dipeptidases (L-leucyl-L-proline and L-phenylalanyl-L-proline dipeptidases). The genetic variability observed …
Itchgrass (Rottboellia Exaltata) Response To Herbicides And Cultivation, And Subsequent Effect On Soybean (Glycine Max) Yield (Louisiana)., Paul Ruel Nester
Itchgrass (Rottboellia Exaltata) Response To Herbicides And Cultivation, And Subsequent Effect On Soybean (Glycine Max) Yield (Louisiana)., Paul Ruel Nester
LSU Historical Dissertations and Theses
Research was conducted during the growing seasons of 1981 and 1982 in Baton Rouge, Louisiana, to evaluate the response of itchgrass and soybean yield to weed control practices used in conventional soybean culture. Trifluralin ((alpha),(alpha),(alpha)-triflouro-2,6-dinitro-N,N = -dipropyl-p-toluidine) (preplant incorporated) at 1.8 kg/ha, alachlor {2-chloro-2',6'-diethyl-N-(methoxymethyl)acetanilide} (preemergence) at 2.4 kg/ha, or no soil applied herbicide, followed by zero, one or two overtop applications of diclofop as the methyl ester at 1.2 kg/ha {2-{4-(2,4-dichlorophenoxy)phenoxy}propanoic acid} were applied in cultivated and noncultivated areas to determine effects on seedling emergence, density, height, standing biomass and seed production of itchgrass {Rottboellia exaltata (L.) L.f.} at soybean …
Regulation Of Macromolecular Synthesis In The Fungus Mucor Racemosus., Joseph Frederick Ross
Regulation Of Macromolecular Synthesis In The Fungus Mucor Racemosus., Joseph Frederick Ross
LSU Historical Dissertations and Theses
Cells of the dimorphic Zygomycetous fungus Mucor racemosus were grown in both batch and continuous culture in order to study the regulation of RNA and protein synthesis as a function of (i) growth rate, (ii) morphogenesis and (iii) nutritional shift-up. In all three cases cells were analyzed for parameters used to calculate (i) cellular ribosome concentration, (ii) percentage of ribosomes active in protein synthesis and (iii) polypeptide chain elongation rate. Cultures subjected to atmospheric or nutritional shifts were additionally pulse labelled or pulse labelled and steady-state labelled with radioactive amino acids and phosphate to measure the rates of synthesis and …
The Mechanism Of Aldosterone Secretion In Dairy Cattle And The Circadian Rhythm Of Aldosterone, Cortisol And Progesterone In Dairy Cattle During Summer In Louisiana., Teodora Javier Aranas
The Mechanism Of Aldosterone Secretion In Dairy Cattle And The Circadian Rhythm Of Aldosterone, Cortisol And Progesterone In Dairy Cattle During Summer In Louisiana., Teodora Javier Aranas
LSU Historical Dissertations and Theses
A study of the basic mechanism of aldosterone secretion was performed on 15 month old Holstein heifers. Animals were fitted with indwelling jugular catheters and estrous cycle was synchronized with PGF(,2(alpha)). Effects of adrenocorticotrophic hormone (ACTH) and angiotensin II (AII) on the secretion of aldosterone, cortisol, progesterone and other parameters such as sodium and potassium that influenced aldosterone secretion were analyzed by Latin Square design, replicated twice. Treatments consisted of intravenous injections of 200 I.U. ACTH/animal, 18 mg AII/animal, or physiological saline. Blood samples were collected before treatment (0 min), at fifteen and thirty minutes after treatment, and at hourly …
Biological, Ecological, And Morphological Investigations Of The Rice Water Weevil, Lissorhoptrus Oryzophilus Kuschel, On Two Rice Genotypes., Gary Leonard Cave
Biological, Ecological, And Morphological Investigations Of The Rice Water Weevil, Lissorhoptrus Oryzophilus Kuschel, On Two Rice Genotypes., Gary Leonard Cave
LSU Historical Dissertations and Theses
The rice water weevil, Lissorhoptrus oryzophilus Kuschel, is the most important insect pest of rice, Oryza sativa (L.), in the United States. Although this insect has been associated with O. sativa since the introduction of this plant species into the United States in 1685, some aspects of its biology remain obscure. Larvae of L. oryzophilus have four instars, based on measurements of head-capsule widths of field-collected larvae in 1981 and 1982. The head-capsule widths of each instar were: I, 0.14 to 0.18 mm; II, 0.20 to 0.26 mm; III, 0.28 to 0.38 mm; IV, 0.40 to 0.60 mm. Further studies …
Inflammation And Leukocyte Responses Induced By Subcutaneous Turpentine Inoculation Of Young Alligator Mississippiensis., Margarita Rosa Mateo
Inflammation And Leukocyte Responses Induced By Subcutaneous Turpentine Inoculation Of Young Alligator Mississippiensis., Margarita Rosa Mateo
LSU Historical Dissertations and Theses
Turpentine-induced skin reactions in young Alligator mississippiensis kept at 25(DEGREES)C were employed to study reptile inflammatory response. Skin lesions, harvested at intervals from 4 hours to 30 days post-inoculation exhibited no gross changes until day 24-26, when superficial skin necrosis and sloughing occurred. Early responses of congestion and dermal edema (4-8 hours) were seen by light microscopy, followed by necrosis and granulocyte migration (1-3 days). There was later predominance of monocytic cells, including vacuolated macrophages (7 days - 30 days). At 30 days post-inoculation, central dermal zones of necrotic debris were surrounded by palisades of vacuolated multinucleated giant cells and …
Equine Infectious Anemia Virus: (1) The Generation Of Virus Variant Candidates. (2) Attempts To Titrate The Virus By Three Different Methods., Alberto Orrego Uribe
Equine Infectious Anemia Virus: (1) The Generation Of Virus Variant Candidates. (2) Attempts To Titrate The Virus By Three Different Methods., Alberto Orrego Uribe
LSU Historical Dissertations and Theses
Six serial passages of a cell-adapted strain of EIAV were conducted in Shetland ponies. The 16 recipient ponies became agar-gel immunodiffusion test positive by 25 days after inoculation, and it was observed that the virulence of this cell-adapted strain increased through the successive passages. Clinical signs were closely monitored and recorded, and macroscopic as well as microscopic lesions of EIA were also recorded and evaluated. The effect of EIAV upon blood components was determined after several of the febrile episodes, and the effect of the immunosuppressant dexamethasone on infected ponies were also studied. EIAV was isolated in fetal equine kidney …
Growth And Metabolic Responses Of Saccharum Species In Relation To Flooding., A. B. M. Mafizur Rahman
Growth And Metabolic Responses Of Saccharum Species In Relation To Flooding., A. B. M. Mafizur Rahman
LSU Historical Dissertations and Theses
Some growth and metabolic responses of different clones of Saccharum in relation to their flood-tolerance were examined. Clones grown in soil subjected to flooding demonstrated their ability to produce water roots as a means of morphological adaptation to flooding. Significant differences were observed among the clones with respect to the quantities of water roots produced, but all the clones were visually tolerant to flooding. Clones representing Saccharum spontaneum followed by the commercial hybrid produced the maximum quantities of water root under the flooded condition. The clones of Saccharum barberi and Saccharum robustum produced the least quantities of water root. Artificially …
Analysis Of Forest Tent Caterpillar, Malacosoma Disstria Hbn. (Lepidoptera: Lasiocampidae), Populations In Louisiana., James David Smith
Analysis Of Forest Tent Caterpillar, Malacosoma Disstria Hbn. (Lepidoptera: Lasiocampidae), Populations In Louisiana., James David Smith
LSU Historical Dissertations and Theses
The forest tent caterpillar (FTC), Malacosoma disstria Hbn. (Lepidoptera: Lasiocampidae), has caused noticeable defoliation to tupelo gum, Nyssa aquatica L., in southern Louisiana since 1948. This species has a tremendous population growth potential and in epidemic years can totally exceed its host foliage resource. FTC egg hatch in Louisiana occurred after an average of 1,284 degree days using a beginning overwintering period of December 1 and a threshold temperature of 4.4(DEGREES)C 40(DEGREES)F). Larval development proceeded through five instars in Louisiana. Adult emergence and egg oviposition was completed by the second week in June. Two species of egg parasitoids, Ooencyrtus clisiocampae …
Circadian Systems In Development And Photoperiodism In Japanese Quail., Albert C. Russo Jr
Circadian Systems In Development And Photoperiodism In Japanese Quail., Albert C. Russo Jr
LSU Historical Dissertations and Theses
Section I: The daily rhythm of plasma levels of adrenal corticol hormones (ACH) differed in phase and amplitude in Japanese quail of different ages and reproductive condition. Treatment with thiouracil accelerated and thyroxine delayed maturation of the ACH rhythm and development of the reproductive system. In contrast to the ACH rhythm, the rhythm of plasma thyroxine concentrations was similar at all ages tested. Section II: The roles of circadian rhythms in photoperiodism as they relate to adrenal cortical hormone (ACH) were examined in male Japanese quail, Coturnix coturnix japonica. Plasma ACH concentration was found to undergo circadian variations, which varied …
The Regulation Of Gene Expression During The Aerobic Germination Of Mucor Racemosus Sporangiospores., John Edgar Linz
The Regulation Of Gene Expression During The Aerobic Germination Of Mucor Racemosus Sporangiospores., John Edgar Linz
LSU Historical Dissertations and Theses
This study was undertaken to investigate the regulation of gene expression during the aerobic germination of Mucor racemosus sporangiospores. Sucrose density gradient analysis of spore extracts revealed that the percentage of ribosomes associated with mRNA increased from 23% in dormant spores to 85% after 10 min of germination. L-{('14)C}leucine was immediately incorporated at a rapid rate into protein of a leucine auxotroph, whereas {('3)H}uracil or {('32)P}-phosphate were not incorporated into RNA at a significant rate until 20 min after the addition of medium. Newly synthesized RNA did not appear in polysomes until at least 30 min. Polyadenylated RNA, comprising 3.3% …
Evidence For An Outer Membrane - Association Precursor Of The Extracellular Protease Produced By Serratia Marcescens., Laura Robin Liss
Evidence For An Outer Membrane - Association Precursor Of The Extracellular Protease Produced By Serratia Marcescens., Laura Robin Liss
LSU Historical Dissertations and Theses
Serratia marcescens LRL781, a gram-negative bacterium, produces an extracellular protease. Evidence is provided for an outer membrane-associated, larger molecular weight, enzymatically inactive precursor of the protease. Antiserum was prepared against the extracellular protease, which was purified from the supernatant fraction of S. marcescens LRL781 cultures. Column adsorption of the antiprotease serum was performed using a slurry of live cells and cellulose. The resulting effluent was serologically inactive against protease preparations and chromium chloride-coupled protease-rabbit erythrocytes. Whole washed cells agglutinated in the presence of the antiserum. Cells were uniformly labeled with ferritin conjugated goat anti-rabbit IgG, indicating that the protease precursor …
Water Budget, Benthological Characterization, And Simulation Of Aquatic Material Flows In A Louisiana Freshwater Swamp., Fred Hal Sklar
Water Budget, Benthological Characterization, And Simulation Of Aquatic Material Flows In A Louisiana Freshwater Swamp., Fred Hal Sklar
LSU Historical Dissertations and Theses
A two-year survey of the aquatic plants and invertebrates in the Des Allemands Swamp was designed to determine the ecological effects of altered hydrologic regimes. The aquatic invertebrate community in an impoundment was compared with a control site subject to "normal" overflow flooding and a crawfish farm where high rates of water exchange are maintained by a system of pumps and artificial levees. Swamp hydrology for the years 1914-1980 was modeled using Thornthwaite and Mather components. Time-series analysis found no evidence of any long-term cyclical behavior. High evapotranspiration and drainage during summer decrease water levels to zero in natural swamp …
Population Dynamics, Taxonomy, And Control Of Euonymus Scale, Unaspis Euonymi (Comstock)., Beverly Sparks Brewer
Population Dynamics, Taxonomy, And Control Of Euonymus Scale, Unaspis Euonymi (Comstock)., Beverly Sparks Brewer
LSU Historical Dissertations and Theses
No abstract provided.
The Beta-Fructofuranosidase Of Kluyveromyces Fragilis And Its Use In Inulin Hydrolysis., Wesley Earl Workman
The Beta-Fructofuranosidase Of Kluyveromyces Fragilis And Its Use In Inulin Hydrolysis., Wesley Earl Workman
LSU Historical Dissertations and Theses
Inulin, a polyfructan, is found as the reserve carbohydrate in the roots and tubers of various plants. The (beta)-fructofuranosidase (inulase) from the yeast Kluyveromyces fragilis is of interest because of its industrial potential in fructose syrup and alcohol production from inulin containing plants. The enzyme was purified and characterized with respect to its physical and kinetic parameters. The relationship between the enzyme and the yeast cell wall was also investigated. It was found that the inulase of Kluyveromyces fragilis could be immobilized in the yeast cells by glutaraldehyde treatment. Although the exact nature of the immobilization is not fully understood …
Systematics, Redescription, And Geographic Variation Of The Blackside Darter, Percina Maculata (Pisces; Percidae)., Eugene Clifton Beckham Iii
Systematics, Redescription, And Geographic Variation Of The Blackside Darter, Percina Maculata (Pisces; Percidae)., Eugene Clifton Beckham Iii
LSU Historical Dissertations and Theses
A systematic study of the North American percid fish Percina (Alvordius) maculata (Girard) was undertaken to determine the extent and pattern of geographic variation, subspeciation, and sexual dimorphism. A brief nomenclatorial history is presented, the species is redescribed, and variation, distribution, habitat, and subgeneric relationships are discussed. Other than dorsal fin pigmentation, absence of modified midventral scales in females, and limited intrapopulational sexual dimorphism in a few morphometric characters, no variation in most of the thirty-nine characters examined is present between males and females. Morphometrics exhibited no pattern of geographic variation; however, meristic characters revealed a major trend in geographic …
Some Relationships Between Crop Damage Inflicted By The Sugarcane Borer, Diatraea Saccharalis (F.), And Selected Plant Diseases (Louisiana)., Emmanuel Oludele Ogunwolu
Some Relationships Between Crop Damage Inflicted By The Sugarcane Borer, Diatraea Saccharalis (F.), And Selected Plant Diseases (Louisiana)., Emmanuel Oludele Ogunwolu
LSU Historical Dissertations and Theses
A 3-fold difference (P < 0.05) was found in a 5-replication split plot comparison of % yield loss due to ratoon stunting disease (RSD) alone in contrast to that due to the disease in combination with sugarcane borer (SCB), Diatraea saccharalis (F.), damage in 1st stubble sugarcane. The research plan utilized differential levels of SCB damage as whole plots and a factorial combination of 2 levels of RSD (0 vs 63%) and 2 types of seed cane ( 35% SCB bored internodes) as subplots. Based on the plant cane data, a highly significant negative correlation r = -0.82, was found between SCB damage and cane weight. Loss in sugar production due to 55% SCB bored internodes was 24.4%. The association of simulated or actual SCB injury with stalk rots, particularly Colletotrichum falcatum Went, caused from 9.2-34.1% reduction in germination, and as much as 2.5 metric tons/ha loss in sugar production. Excepting SCB control, a survey spanning 2 years of sugarcane management practices among producers in 3 geographic areas of Louisiana showed substantial variability in the efficacy of control tactics applied against weeds and RSD, with effective suppression of weeds in sugarcane being the most inconsistent and difficult to achieve. These results indicate the need for an integrated approach to managing several components of pest complexes, disease, weeds, and insects in Louisiana sugarcane.
Bacteriological And Toxigenic Studies On Vibrio Species Isolated From The Blue Crab (Callinectes Sapidus) And The Purification Of Toxic Factors Produced By Vibrio Fluvialis (Louisiana)., Susan Lynne Payne
LSU Historical Dissertations and Theses
Eleven cases of cholera occurred in Louisiana in 1978 and except for an isolated case in Texas in 1973, this was the first cholera outbreak in the United States since 1911. The source of the infectious agent was traced to the consumption of crabs, a finding which had adverse effects on the crab industry in Louisiana. During 1979 and 1980 blue crabs were examined bacteriologically for the presence of Vibrio cholerae, the etiological agent of Asiatic cholera, and other pathogenic Vibrio species. Four hundred-eighteen V. cholerae isolates were recovered from crab feces and 144 V. cholerae were recovered from hemolymph …
An Analysis Of The Trematode Fauna Of Two Intercontinental Migrants: Tringa Solitaria And Calidris Melanotos (Aves: Charadriiformes) (Ecuador, Louisiana, South Dakota, Canada)., Erika Jansic Tallman
An Analysis Of The Trematode Fauna Of Two Intercontinental Migrants: Tringa Solitaria And Calidris Melanotos (Aves: Charadriiformes) (Ecuador, Louisiana, South Dakota, Canada)., Erika Jansic Tallman
LSU Historical Dissertations and Theses
One hundred ninety-seven Solitary Sandpipers, Tringa solitaria, and 213 Pectoral Sandpipers, Calidris melanotos, were examined for trematodes. Specimens were taken from the hosts' winter range in Ecuador, South America, during the fall and spring migrations from Louisiana and South Dakota in the United States, and from the breeding grounds of the Solitary Sandpiper in Ontario, Canada. The 13 species of trematodes recorded from the shorebirds included 5 that were common to both species of shorebirds: Tanaisia fedtschnkoi, Cyclocoelum obscurum, Paramonostomum sp., Leucochloridium variae, and Zonorchis microrochis. Of the remaining 8 species, Cyclocoelum brasilianum, Plagiorchis maculosus, Stephanoprora denticulata, and Eurytrema lubens …
The Effects Of Acute Dehydration On The Anaerobic Threshold During Incremental Cycle Ergometer Exercise., Penelope England
The Effects Of Acute Dehydration On The Anaerobic Threshold During Incremental Cycle Ergometer Exercise., Penelope England
LSU Historical Dissertations and Theses
Much of the previous research concerning dehydration and performance has centered around prolonged submaximal work while seemingly little attention has been focused upon short term incremental exercise. Numerous investigators have suggested that dehydration may alter carbohydrate metabolism in muscle. Theoretically, altered glycolytic flux in exercising muscle could result in a change in the rate of blood lactate (La) accumulation, and thus shift the anaerobic threshold. Anaerobic threshold (AT(,La)) has been formally defined as the oxygen uptake (V(,O(,2))) at which there is a systematic increase in blood La. Additionally, the AT(,La) has been estimated from a nonlinear increase in expired ventilation …
The Relationship Between Fibrinolytic Capacity And Metabolic Control In Insulin-Dependent Diabetes Mellitus., William Guyton Hornsby Jr
The Relationship Between Fibrinolytic Capacity And Metabolic Control In Insulin-Dependent Diabetes Mellitus., William Guyton Hornsby Jr
LSU Historical Dissertations and Theses
The purpose of this study was to investigate the relationship between fibrinolytic capacity and metabolic control in insulin-dependent diabetes mellitus. Testing protocol was explained and informed consent was obtained from 26 insulin-dependent diabetics and 20 healthy controls who agreed to serve as subjects. Fibrinolytic capacity (FC) was measured as the change in euglobulin lysis time produced by 10 min of venous occlusion with a sphygmomanometer cuff inflated around the upper arm at a pressure midway between systolic and diastolic blood pressure. Metabolic control was evaluated by measurement of hemoglobin A1 (HbA1) using a minicolumn chromatographic technique. Fasting glucose (GLU), cholesterol …
Survival Of Vibrio Cholerae, Biotype E1 Tor, Serotype Inaba In Seafoods., Arthur Hinton Jr
Survival Of Vibrio Cholerae, Biotype E1 Tor, Serotype Inaba In Seafoods., Arthur Hinton Jr
LSU Historical Dissertations and Theses
The D values of Vibrio cholerae in oyster and shrimp meat homogenate were determined at 49(DEGREES), 54(DEGREES), 60(DEGREES), 66(DEGREES), 71(DEGREES), 77(DEGREES), and 82(DEGREES)C. In oyster homogenates, the D values in minutes were 4.7 at 49(DEGREES)C, < 0.35 at 54(DEGREES)C, < 0.35 at 60(DEGREES)C, < 0.33 at 66(DEGREES)C, < 0.30 at 71(DEGREES)C, < 0.29 at 77(DEGREES)C, and < 0.24 at 82(DEGREES)C. In shrimp homogenates, the D values in minutes were 9.17 at 49(DEGREES)C, < 0.43 at 54(DEGREES)C, < 0.39 at 60(DEGREES)C, < 0.32 at 66(DEGREES)C, < 0.31 at 71(DEGREES)C, < 0.30 at 77(DEGREES), and < 0.28 at 82(DEGREES)C. Whole oysters, inoculated with 10('6) V. cholerae/gram, were cooked in boiling water (100(DEGREES)C) or in hot oil (191(DEGREES)C) for one minute. Whole shrimp, inoculated with 10('6) V. cholerae were cooked in boiling water (100(DEGREES)C) or in steam (100(DEGREES)C) for 10 minutes. Vibrio cholerae was not isolated from the cooked oysters or shrimp. Sterile and unsterile shrimp, oyster, crab, and crayfish meat homogenates were inoculated with 10('7) V. cholerae/g. The homogenates were treated with 0, 25, 50, or 100 krad and stored at 4(DEGREES), 0(DEGREES), or -8(DEGREES)C for 21 days. No V. cholerae were isolated from any of the homogenates treated with 100 krad. Vibrio cholerae was able to survive longer in the sterile oyster, crab and crayfish homogenates stored at 4(DEGREES) and 0(DEGREES)C than in the unsterile homogenates stored at the same temperatures. The organism was able to survive longer in the unsterile shrimp homogenates stored at 4(DEGREES) and 0(DEGREES)C than in the sterile homogenates stored at the same temperature. At -8(DEGREES)C, survival time was usually longer in the unsterile seafood homogenates than in the sterile seafood homogenates stored at -8(DEGREES)C. Due to the retardation of competitive inhibition the organism was usually able to survive longer in the unsterile homogenates stored at -8(DEGREES)C than in the unsterile homogenates stored at 4(DEGREES) or 0(DEGREES)C.
Sodium Ion Transport Regulation By A Serotonin Stimulated Adenylate Cyclase System In Freshwater Mussels., John Iver Scheide
Sodium Ion Transport Regulation By A Serotonin Stimulated Adenylate Cyclase System In Freshwater Mussels., John Iver Scheide
LSU Historical Dissertations and Theses
Freshwater bivalves increase Na influx when the mussels were injected with dibutyryl cAMP, serotonin (5-HT), or 5-HT (10('-4) M/l) was added to the bath; a response similar to a sodium depleted mussel. Serotonin stimulated Na influx kinetics (K(,m) = 0.09 mM/l and J(,max) = 4.33 (mu)eq (g dry tissue (.) hr)('-1) were similar to Na depleted mussels. Stimulated Na influx (by dibutyryl cAMP or 5-HT) was inhibited by amiloride (5 x 10('-4) M/l) and the amiloride inhibition was reversible. Serotonin also changes water balance; the 5-HT stimulated mussels gain 0.36 ml H(,2)O (g dry tissue (.) hr)('-1) above controls. Serotonin …