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Tilapia (0):
Recent article
Tilapia
Abstract
This study reports on intersex in Oreochromis mossambicus, an indigenous fish species inhabiting most aquatic systems throughout South Africa (SA). Male fish were collected from three sites in the Luvuvhu River, Limpopo Province, SA: Albasini Dam (AD), Nandoni Dam (ND), and Xikundu Weir (XW). The la...
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PMID: 20701972
PDF is available here.
PDF is available here.
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Abstract
Factors affecting prevalence and site preferences of heterophyid metacercariae (MC) were investigated in this study. A total of 173 specimens of a freshwater fish, Tilapia zilli were collected during autumn 2008, winter 2009 and summer 2009, from Ismailia fresh water canal, Egypt. Results showed tha...
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PMID: 21073146
PDF is available here.
PDF is available here.
Abstract
Outbreaks of Vibrio vulnificus wound infections in Israel were previously attributed to tilapia aquaculture. In this study, V. vulnificus was frequently isolated from coastal but not freshwater aquaculture in Bangladesh. Phylogenetic analyses showed that strains from Bangladesh differed remarkably f...
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PMID: 20495047
PDF is available here.
PDF is available here.
Abstract
In order to investigate the effects of montmorillonite (MMT) on reducing dietary lead (Pb) toxicity to tilapia (Oreochromis niloticus), 240 fish were randomly divided into four treatments denominated as follows: control treatment (fed with a basal diet), MMT treatment (fed with a basal diet added wi...
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PMID: 19789846
PDF is available here.
PDF is available here.
Abstract
The responses of Mozambique and Nile tilapia acclimated to fresh water (FW) and brackish water (BW; 17 per thousand) were compared following acute salinity challenges. In both species, plasma osmolality increased to above 450 mOsm by 2h after transfer from FW to seawater (SW); these increases in osm...
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PMID: 20138183
PDF is available here.
PDF is available here.
Abstract
We have developed a highly sensitive and specific assay that can be used for the specific identification and quantification of F. noatunensis subsp. orientalis....
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PMID: 20481087
PDF is available here.
PDF is available here.
Abstract
To develop antibiotic-free and chemical-free aquaculture, it is necessary to have natural substances to control diseases of aquatic animals. The aim of this study was to find an herb having therapeutic effect against columnaris, a fish disease caused by the bacterium Flavobacterium columnare. Of all...
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PMID: 20575361
PDF is available here.
PDF is available here.
Abstract
Exposure of aquatic organisms to 17beta-estradiol (E(2)) induces a variety of estrogen-responsive genes, including vitellogenin (vtg)-the precursor protein of egg yolk in oviparous animals and to date the single most used gene product in screening for estrogenic endocrine disruption. Transcription r...
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PMID: 20025969
PDF is available here.
PDF is available here.
Abstract
The use of some biota as bioindicators of heavy metal pollution has been demonstrated as particularly adequate due to their capacity of bioconcentration. This study evaluated the levels of platinum group metals (PGMs) in some selected species along the coastal belt of Ghana, using the neutron activa...
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PMID: 20953547
PDF is available here.
PDF is available here.
BMC Genomics (11)1 2010
Abstract
The ESTs were assembled into 20,190 contigs and 36,028 singletons for a total of 56,218 unique sequences and a total assembled length of 35,168,415 bp. Over the whole project, a unique sequence was discovered for every 2.079 sequence reads. 17,722 (31.5%) of these unique sequences had significant BL...
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PMID: 20433739
PDF is available here.
PDF is available here.
Abstract
The aim of this study was to measure antioxidant enzyme activities as biological indicators of pollution in tissues of two species of fish. Five Clarius gariepinus and three Oreochromis mossambicus were collected from Umguza Dam (polluted dam) whilst seven C. gariepinus and eight O. mossambicus were...
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PMID: 19768358
PDF is available here.
PDF is available here.
Abstract
We investigated the concentrations of eight metal elements in tilapia tissues (muscle and scale) at two fisheries. We compared the difference in metal content in tilapia at these two fisheries with that in non-contaminated fish at the Fisheries Research Institute. Probabilistic risk analysis was car...
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PMID: 19636480
PDF is available here.
PDF is available here.
Abstract
As part of a continuing search for potential anticancer drug candidates from antimicrobial peptides of marine organisms, tilapia (Oreochromis mossambicus) hepcidin TH2-3 was evaluated in several tumor cell lines. The results indicated that TH2-3, a synthetic 20-mer antimicrobial peptide, specificall...
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PMID: 19539000
PDF is available here.
PDF is available here.
Abstract
A total of 410 Tilapia zillii, 70 Clarias gariepinus, 30 Bagrus bajad and 15 Chlrysichthys auratus fishes were collected from different water bodies in Qualyobia Governorate. Microscopic examination of samples showed infection in muscles and head region (gills & branchial cavity) with encysted metac...
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PMID: 19795754
PDF is available here.
PDF is available here.
Abstract
Encysted metacercariae (EMC) from seven trematod-zoonotic parasites were exposed to different temperature mechanisms. Boiling of the infected fishes was sufficient to kill the EMC, frying of fishes for five minutes was quite sufficient to inhibit the viability of EMC, but frying for 10 minutes kille...
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PMID: 19795748
PDF is available here.
PDF is available here.
Abstract
The parasitic ciliate Ichthyophthirius multifiliis (Ich) is one of the most important protozoan pathogens of freshwater fish worldwide. Examination of 4 species of Tilapia from the River Nile recorded highest rate infection in Oreochromis niloticus, followed by Oreochromis aureus, Sarotherodon galil...
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PMID: 19795773
PDF is available here.
PDF is available here.
Abstract
To study the toxic effect of a heavy metal on the occurrence of melano macrophage centres (MMC) of liver, spleen and kidney. Tilapia mossambica were exposed to median lethal concentration of cadmium chloride for 120 hours. Routine histological method was adopted to prepare the tissue sections and to...
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PMID: 20120487
PDF is available here.
PDF is available here.
Transgenic Research (18)3 2009
Abstract
We conducted in vitro transcription activities of the three zebrafish U6 putative promoters across species in cell extracts prepared from Nile tilapia (Oreochromis niloticus) and shrimps. The transcription efficiency of these putative U6 promoters in Nile tilapia cell extracts was similar to that of...
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PMID: 19225901
PDF is available here.
PDF is available here.
Abstract
We examined the potential of using native fish species in regulating mosquitoes in the floodplain of the Gambia River, the major source of mosquitoes in rural parts of The Gambia. Fishes and mosquito larvae were sampled along two 2.3-km-long transects, from the landward edge of the floodplain to the...
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PMID: 19496426
PDF is available here.
PDF is available here.
Abstract
Tilapia (Oreochromis niloticus) were exposed to 0, 100, 400, and 800 microg/g concentrations of Pb in diet for 60 days, and changes in growth performance, metabolic enzyme activities, and essential trace elements (Fe, Cu, and Zn) content in liver and kidney were investigated. Daily weight gain, feed...
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PMID: 18953496
PDF is available here.
PDF is available here.
Abstract
Organochlorine pesticides (OCPs) contamination was assessed in marketable species, two fishes (tilapia and catfish) and a prawn from the Lake Taabo (Côte d'Ivoire). Lindane and endosulfan were the main contaminants, suggesting their current use. DDT, endrin, heptachlor plus traces of chlordane, ald...
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PMID: 18936865
PDF is available here.
PDF is available here.
Abstract
Samples of the muscle and liver of the Nile tilapia (Oreochromis niloticus) were obtained from a single reservoir in each of three Sri Lankan catchments (Kaudulla, Rajanganaya, and Udawalawe reservoirs in the Mahaweli, Kala Oya, and Walawe Ganga river basins, respectively) in 2002. The concentration...
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PMID: 18949439
PDF is available here.
PDF is available here.
Abstract
Aquatic organisms are considered excellent biomarkers of mercury (Hg) occurrence in the environment. Selenium (Se) acts in antagonism to this metal, stimulating its elimination, and reducing its toxicity. In this paper, tilapia (Oreochromis niloticus) were chronically acclimated in sub-lethal Hg(2+)...
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PMID: 19034371
PDF is available here.
PDF is available here.
Journal of Fish Diseases (32)3 2009
Abstract
A commercial red tilapia farm was diagnosed with Streptococcus agalactiae infection using histopathology, microbiology and immunohistochemistry. One hundred fish were randomly taken from different weight/age groups including broodstock, market fish (larger than 150 g), on-growing fish between 20 and...
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PMID: 19236558
PDF is available here.
PDF is available here.
Abstract
The enormous expansion of world-wide aquaculture has led to increasing interest in the regulation of fish immune system. Estrogen has recently been shown to inhibit the endocrine (liver-derived) and autocrine/paracrine local insulin-like growth factor-I system in fish. In order to address the potent...
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PMID: 19340956
PDF is available here.
PDF is available here.
Abstract
With the increasing occurrence of dietary lead (Pb) contamination in aquatic environment, threat of the dietary Pb toxicity to aquatic organisms attracted more attention. In this study, after being exposed to dietary Pb at concentrations of 0, 100, 400, and 800-microg/g dry weight for 60 days, the g...
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PMID: 18825319
PDF is available here.
PDF is available here.
Tsitologiia (51)4 2009
Abstract
Using 3H-uridine dynamics of RNA synthesis in oocytes of tilapia which grow at different temperatures was studied. Intact fishes were cultivated at the temperature 25-26 degrees C, experimental ones -- 19-21 degrees C. Before 3H-uridine injection, experimental fishes were cultivated at low temperatu...
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PMID: 19505050
PDF is available here.
PDF is available here.
In vivo biological responses and bioresorption of tilapia scale collagen as a potential biomaterial.
Abstract
These results suggest that tilapia collagen is a potential alternative to conventional mammalian collagens in biomedical uses....
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PMID: 19622276
PDF is available here.
PDF is available here.
Abstract
I collagen fibrils. The calcium L(2,3)-edge and oxygen K-edge peak positions were detected at 347/350 eV and 137 eV, respectively, and these positions were identical to those of hydroxyapatite. Calcium, phosphorus, and oxygen were present in the hole zones as the amorphous phase, while carbon was pr...
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PMID: 19419879
PDF is available here.
PDF is available here.
Abstract
We aimed to confirm the photic and circadian responsiveness of its close relative-the Mozambique tilapia O. mossambicus. Melatonin production in cannulated or ophthalmectomized fish and its secretion from cultured pineal glands were examined under several light regimes. Melatonin production in the c...
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PMID: 18817887
PDF is available here.
PDF is available here.
Abstract
The effects of phenanthrene (Phe) on hepatosomatic index (HSI) and hepatic enzymatic activities in hybrid tilapia (Oreochromis niloticus female x O. aureus male) were investigated via the static freshwater exposure at dosage of 50, 100, and 400 microg/L for 4-14 d. Compared with the control group, H...
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PMID: 19803094
PDF is available here.
PDF is available here.
Biological Bulletin (215)3 2008
Abstract
We used a microthermistor flow probe to determine the speed of intra-oral flow during suspension feeding in this species before and after surgical removal of gill rakers. Synchronization with high-speed external videotapes of the fish and high-speed video endoscopy inside the oropharyngeal cavity al...
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PMID: 19098151
PDF is available here.
PDF is available here.
Emerging Infectious Diseases (14)12 2008
Abstract
Science of the Total Environment (406)1-2 2008
Abstract
We estimate that as much as 3400 Mg year(-1) or approximately 26% of sulfide that diffused into the water column from the deepest sediments may have been volatilized to the atmosphere....
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PMID: 18760446
PDF is available here.
PDF is available here.
Abstract
We have investigated alkali-solubilized tilapia ( Oreochromis niloticus) protein hydrolysates for their ability to scavenge reactive oxygen species (ROS) and for their reducing power. Tilapia protein isolate was prepared by an alkaline solubilization technique and used as a substrate for enzyme hydr...
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PMID: 18828605
PDF is available here.
PDF is available here.
Journal of Food Protection (71)11 2008
Abstract
With the popularity of catfish and tilapia in the healthy diet, the consumption and harvesting of farm-raised finfish have increased. Since 1987 the pathogenic bacterium Listeria monocytogenes has been isolated from seafood, particularly farm-raised catfish in the United States. Seafood isolates of...
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PMID: 19044273
PDF is available here.
PDF is available here.
Toxicological Sciences (106)1 2008
Abstract
I (IGF-I) system. To this end, developing male and female monosex populations of tilapia were exposed to 17alpha-ethinylestradiol (EE2) at 5 and 25 ng EE2/l water from 10-day postfertilization (DPF) until 100 DPF. Under exposure to both EE2 concentrations, sex ratio shifted toward more females and b...
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PMID: 18660547
PDF is available here.
PDF is available here.
Harvard Heart Letter (19)3 2008
Abstract
Transgenic Research (17)5 2008
Abstract
Abstract
We explored molecular and morphological alteration in gill mitochondria-rich (MR) cells of Mozambique tilapia, Oreochromis mossambicus, acclimated to deionized freshwater (DFW), freshwater (FW), 1/3-diluted seawater (1/3 SW) and seawater (SW). Scanning electron microscopic observations revealed that...
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PMID: 18619551
PDF is available here.
PDF is available here.
Parasitology Research (103)4 2008
Abstract
These results indicate that heterophyid infections occur in brackish and fresh water fishes in northern Egypt, where the parasites are indigenous....
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PMID: 18537032
PDF is available here.
PDF is available here.
Abstract
Antioxidative activity of hydrolyzed protein prepared from alkali-solubilized catfish protein isolates was studied. The isolates were hydrolyzed to 5, 15, and 30% degree of hydrolysis using the protease enzyme, Protamex. Hydrolyzed protein was separated into hydrolysates and soluble supernatants, an...
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PMID: 18662014
PDF is available here.
PDF is available here.
Abstract
The toxic effects of industrial chemicals on three early life stages of an economically important fish, Tilapia guineensis were investigated using the Organisation for Economic Cooperation and Development (OECD) # 203 recommended semi-static renewal bioassay. The assessment was necessary for the unc...
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PMID: 18262353
PDF is available here.
PDF is available here.
Abstract
The microbial quality of raw fillets of aquacultured catfish, salmon, tilapia, and trout was evaluated. A total of 272 fillets from nine local and nine Internet retail markets were tested. Mean values were 5.7 log CFU/g for total aerobic mesophiles, 6.3 log CFU/g for psychrotrophs, and 1.9 log most...
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PMID: 18724746
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 16 2008
Abstract
We cloned four full-length cDNAs homologous to human cation-chloride cotransporters and designated them as tilapia NKCC1a, NKCC1b, NKCC2 and NCC. Out of the four candidates, the mRNA encoding NKCC1a was highly expressed in the yolk-sac membrane and gills (sites of the MRC localization) of seawater-a...
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PMID: 18689412
PDF is available here.
PDF is available here.
Zoological Science (25)8 2008
Abstract
These results indicate that ghrelin is not acting as a hunger signal in short-term fasted tilapia and is not responsible for the elevated levels of plasma GH....
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PMID: 18795816
PDF is available here.
PDF is available here.
Hormones and Behavior (54)3 2008
Abstract
We found that MSP is secreted in urine and seminal fluids, and is present in the skin mucus of socially dominant males. Moreover, we discovered a positive correlation between MSP levels in the serum and the dominance and aggressive behavior displayed by socially dominant males. Based on these data,...
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PMID: 18534590
PDF is available here.
PDF is available here.
Abstract
Abstract
Our objective in this research was to characterize some of the relevant fatty acid chemistry of commonly consumed fish, with a particular focus on the four most commonly consumed farmed fish. To do this, 30 commonly consumed farmed and wild fish were collected from supermarkets and wholesalers throu...
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PMID: 18589026
PDF is available here.
PDF is available here.
Abstract
Age and growth of Nile tilapia (Oreochromis niloticus) were determined using 1039 specimens collected in a tropical shallow lake of Mexico, from January to December 1993. Standard length of females ranged from 9.0 to 16.5 cm and males from 8.9 to 14.8 cm. The standard length-weight relationships for...
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PMID: 19256450
PDF is available here.
PDF is available here.
Journal of Food Science (73)5 2008
Abstract
We compared the postmortem treatment of tilapia fillets with 100% CO and euthanasia of live tilapia with CO for their ability to stabilize the color of white and red muscle of tilapia fillets. Both postmortem CO treatment and CO euthanasia were effective in increasing the redness (a* value) and ligh...
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PMID: 18576984
PDF is available here.
PDF is available here.
Journal of Experimental Biology (211)Pt 12 2008
Abstract
These results suggest that otolith growth, at least during the juvenile stage, is regulated by the thyroid hormones and the process may be mediated by TRalpha....
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PMID: 18515722
PDF is available here.
PDF is available here.
Aquatic Toxicology (87)4 2008
Abstract
We suggest that the higher Cd resistance of larvae from the egg stage was a result of the Cd contamination of the parent female, as evidenced by an increase in MT expression induced in tilapia embryos and larvae....
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PMID: 18406477
PDF is available here.
PDF is available here.
Abstract
We showed that the truncated growth hormone produced in the P. pastoris culture supernatant has growth promoting effects and stimulates innate immune parameters (lysozyme and lectins) in tilapia larvae. These results suggest that the C-terminal portion of growth hormone is not required for its growt...
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PMID: 18471813
PDF is available here.
PDF is available here.
Abstract
The bone marrow may be an attractive alternative site for pancreatic islet transplantation. The acceptance of allografts and isografts but rejection of xenografts suggests a selective phenomenon for the inflammatory process....
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PMID: 18424287
PDF is available here.
PDF is available here.
Abstract
Microcystins (MCs) are potent hepatotoxins produced by cyanobacteria in water systems that induce oxidative stress in fish. The present study investigated the effect of vitamin E pretreatment on MC-induced oxidative damage in the liver, kidneys, and gills of tilapia fish (Oreochromis niloticus). Gro...
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PMID: 18419199
PDF is available here.
PDF is available here.
Abstract
We propose a bioaccumulation and the Weibull model-based epidemiological framework to accurately estimate the reference arsenic intake guideline for tilapia consumption and tilapia-cultured water arsenic concentration based on bioaccumulations of tilapia and gender/age/cancer-specific epidemiologica...
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PMID: 18068227
PDF is available here.
PDF is available here.
Biotechnology Letters (30)5 2008
Abstract
Electroporation of Litopenaeus schmitti embryos was used to transfer the pE300tiGH15 plasmid that contains the tilapia growth hormone gene (tiGH) complexed with a nuclear localization signal peptide into the zygotes. The gene construct was detected in 35 (36%) of the 98 larvae screened by PCR and So...
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PMID: 18204820
PDF is available here.
PDF is available here.
Abstract
Histopathological alterations in Nile tilapia, Oreochromis niloticus, aged 3 months and subjected to acute and subchronic alachlor exposure were studied by light microscopy LC50 values of alachlor for 24 hr 48 hr, 72 hr and 96 hr were 963.6, 563, 448, and 381.9 microg l(-1), respectively and the max...
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PMID: 18972686
PDF is available here.
PDF is available here.
Abstract
Gender-specific expression of estrogen receptors (ER alpha and ER beta), growth hormone receptors (GHR1 and GHR2), insulin-like growth factors (IGF-I and IGF-II) and three vitellogenins (Vgs A-C) was examined in the liver, gonad, pituitary, and brain of sexually mature male, female, and 17 beta-estr...
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PMID: 18395204
PDF is available here.
PDF is available here.