Academic literature on the topic 'Victoria River Region (N.T.)'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Contents
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Victoria River Region (N.T.).'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Victoria River Region (N.T.)"
1
Ntinyari, Winnie, Joseph Gweyi-Onyango, Mekonnen Giweta, Benson Mochoge, James Mutegi, Generose Nziguheba, and Cargele Masso. "Nitrogen use efficiency trends for sustainable crop productivity in Lake Victoria basin: smallholder farmers’ perspectives on nitrogen cycling." Environmental Research Communications 4, no. 1 (January 1, 2022): 015004. http://dx.doi.org/10.1088/2515-7620/ac40f2.
Full textAbstract:
Abstract Nitrogen Use Efficiency (NUE) is one of the established metrics for benchmarking management of Nitrogen (N) in various systems. Numerous approaches to calculate NUE exist, making it difficult to compare the performances of systems depending on the methodology used. This study adopted the conceptualized framework by European Union Nitrogen Expert Panel (EUNEP) to calculate NUE values for cereal crops to determine future trends for the first time in the Lake Victoria region. Data were collected through in-person interviews among maize and rice smallholder farmers within the Lake Victoria region. A total of 293 observations were recorded. Collected data on yield and N fertilizer were used to make projections on the changes of NUE based on scientific and policy recommendations for Sub-Saharan Africa for 2020 (base year), 2025, 2030, and 2050. Significant differences in maize grain yield for both fertilized and unfertilized farms were observed with very low yields of 2.4 t ha−1 (fertilized) and 1.4 t ha−1 (unfertilized). The graphical representation of NUE of both maize and rice showed that most farmers were in the zone of soil N mining. Projected results showed that most maize farmers within Lake Victoria region will continue to experience NUE values >90%, low N inputs <50 kg N ha−1) and less than 5 t ha−1 maize crop yield over the years. For rice farmers, Nyando and Nzoia catchments had surpassed the set target of both yield (6 t ha−1) and N input (50 kg N ha−1). However, NUE values remain higher than the optimal ranges of 50%–90% (127.14%−267.57%), indicating risks of depleting soil N status. The unbalanced N fertilization also showed a trend below the linear neutrality option and the average N output for good N management for both crops. Therefore, farmers need to explore various crop management options that could increase N use efficiencies. This should be coupled with policies that promote farmers to access more N input and advocate for optimal management of N and improved quality of the cereals.
2
BELOUSOV, IGOR A., and ILYA I. KABAK. "New species of the genus Trechus Clairville, 1806 from the Chinese Tien Shan (Coleoptera: Carabidae)." Zootaxa 4679, no. 1 (October 1, 2019): 47–68. http://dx.doi.org/10.11646/zootaxa.4679.1.3.
Full textAbstract:
Five new species of the genus Trechus Clairville, 1806 are described from the eastern part of the Tien Shan mountains (China, Xinjiang-Uygur Autonomous Region): T. tsanmensis sp. n. from the Narat Mountain Range, left bank of the Zanma River; T. torgaut sp. n. from the upper course of the Kunges River and Narat Mountain Range (both species belong to the uygur species group, which is defined here); T. aghiazicus sp. n. from the Aghiaz River and Koeksu Basin, T. cratocephalus sp. n. from the Narat Mountain Range (both belong to the micrangulus species group); and T. saluki sp. n. from the mountains S of the Kunges River (belonging to the kashensis species group, also defined in the present paper). Some new data on the distribution of T.uygur Deuve, 1993 and T. kashensis Belousov & Kabak, 2001 are given. The distribution of all known species of the uygur and kashensis groups is mapped. An identification key is provided to known species of the uygur group.
3
Fairey, N. A. "Herbage productivity and nutritive value of nine grasses in the Peace River region of northwestern Canada." Canadian Journal of Plant Science 84, no. 1 (January 1, 2004): 163–71. http://dx.doi.org/10.4141/p02-094.
Full textAbstract:
Seasonal production profiles are fundamental to the effective utilisation of herbage crops. In the Peace River region of north-western Canada, the seasonal productivity and nutritive value of the primary growth of nine grasses was assessed under conditions of potentially non-limiting N fertiliser (150 kg N ha-1). Yield, digestibility and N concentration of dry matter (DM) were determined for herbage harvested at six dates during primary growth (late-May to mid-August at 2-wk intervals), and regressed on time in the growing season. Herbage DM yield increased exponentially throughout primary growth for each grass although the nature of the relationship differed among the grasses, both with respect to the maximum yield and the amount of early-season production; maximum yields ranged from 3.61 t ha-1 for reed canary to 6.31 t ha-1 for intermediate wheat. The early-season productivity of meadow foxtail and crested wheat was particularly evident, with DM yields in excess of 1 t ha-1 by 24 May compared to less than 0.32 t ha-1 for the other seven grasses. Reed canary and meadow foxtail had high N concentrations, meadow brome and three wheatgrasses had low N concentrations, and smooth brome, timothy and creeping red fescue had intermediate N concentrations. Herbage digestibility during the primary growth could be characterised by a single response curve for the nine grasses; digestibility decreased exponentially during the vegetative to head-emergence stage of growth at an average rate of 4.1 g kg-1 DM d-1, from 830 g kg-1 DM in late-May to 616 g kg-1 DM in mid-July. Herbage N concentration and digestibility were related linearly for each of the nine grasses. Key words: Grasses, herbage, yield, nutritive value, primary growth
4
O'Leary, G. J., and D. J. Connor. "A simulation study of wheat crop response to water supply, nitrogen nutrition, stubble retention, and tillage." Australian Journal of Agricultural Research 49, no. 1 (1998): 11. http://dx.doi.org/10.1071/a97020.
Full textAbstract:
A series of simulations was made with a fallow{wheat crop simulation model to examine the effects of stubble retention and tillage on yield for 2 semi-arid environments in north-western Victoria over a 100-200-year period. The fallow treatments comprised 4 combinations of stubble management and tillage in 18-month-long fallows of a fallow{wheat rotation. The 2 sites are representative of the major soil types of the region: a chromic vertisol at Dooen and a calcic xerosol at Walpeup. Stubble retention had the greatest effect on yield, providing a median increase of 0·8 and 0·6 t/ha at Dooen and Walpeup, respectively. Zero tillage had an importantbut small advantage in the presence of stubble at Dooen (0·2 t/ha) and no significant advantage under any system at Walpeup. Yield response was primarily caused through increased fallow-stored water of approximately 89 and 25 mm at Dooen and Walpeup, respectively. The accumulation of soil mineral nitrogen (SMN) at sowing in fallows did not show the same treatment differences as with water or yield. There was a significant interaction between soil type and fallow method. At Dooen, stubble depressed SMN by about 24 kg N/ha (163{185 kg N/ha) below those without stubble (188-207 kg N/ha). Tillage reduced SMN with or without stubble by about 20 kg N/ha. At Walpeup, on the other hand, the highest SMN was associated with tillage and was enhanced by stubble, but the differences were small (<10 kg N/ha). Nitrogen fertiliser produced a small increase in yield (median 0·2 t/ha) at Dooen, increasing to about 0·4 t/ha in wetter years when stubble was retained and fallows were maintained with zero tillage. Over a 100-year period, nitrogen fertiliser reduced the rate of yield decline. The use of nitrogen fertiliser with stubble retention and zero tillage offers an opportunity for arresting declining yield and quality in intensive cropping systems in the Wimmera region of Victoria.
5
SHEIKH, ABID HAMEED, EHSAN UL HAQ, MUHAMMAD ZULFIQAR ANJUM, and Gulzar Ahmad. "PAROTID SWELLING IN CHILDREN." Professional Medical Journal 16, no. 01 (March 10, 2009): 38–43. http://dx.doi.org/10.29309/tpmj/2009.16.01.2970.
Full textAbstract:
Objective: To describe the clinical and pathological presentation as well as treatment options of parotid swelling inchildren. D e s i g n : Descriptive case series study. S e t t i n g : Department of Paediatric Surgery Bahawal Victoria Hospital Bahawalpur. Period:From Nov2005 to Jul2007. Material a n d m e t h o d : All patients of either sex below the age of 13 years presenting with parotid swelling wereincluded in the study. Clinical presentations, preoperative investigations, operative procedures, histopathology reports, postoperativecomplications and further management (radiotherapy &chemotherapy) were recorded. Results: Twelve patients presented with parotidswelling. Commonest presentation was a lump over the parotid region (100%) & pain (25%). Majority of tumours were benign (50%).Vascular lesions outnumbered solid tumours. 4 patients (33.33%) had haemangioma 1 patient (8.33%) had cystic hygroma, one patienteach of pleomorphic adenoma, mucoepidermoid carcinoma and Adenocarcinoma. C o n c l u s i o n : Salivary gland lesions are most likelyinflammatory in origin. Vascular tumours are common benign tumours than epithelial tumours in children. Superficial parotidectomy is theoperation for benign tumours and total conservative parotidectomy for malignant tumours.
6
Oz, Nurtac, Bayram Topal, and Halil Ibrahim Uzun. "Prediction of Water Quality in Riva River Watershed." Ecological Chemistry and Engineering S 26, no. 4 (December 1, 2019): 727–42. http://dx.doi.org/10.1515/eces-2019-0051.
Full textAbstract:
Abstract The Riva River is a water basin located within the borders of Istanbul in the Marmara Region (Turkey) in the south-north direction. Water samples were taken for the 35 km drainage area of the Riva River Basin before the river flows into the Black Sea at 4 stations on the Riva River every month and analyses were carried out. Changes were observed in the quality of water from upstream to downstream. For this purpose, the spatial and temporal variations of water quality were investigated using 13 water quality variables with the ANOVA test. It was observed that COD, DO, S and BOD were important in determining the spatial variation. On the other hand, it was found out that all the variables were effective in determining the temporal variation. Moreover, the correlation analysis which was carried out in order to assess the relations between water quality variables showed that the variables of BOD-COD, BOD-EC, COD-EC, BOD-T and COD-T were correlated and the regression analysis showed that COD, TKN and NH4-N explained BOD and BOD, NH4-N, T and TSS explained COD by approximately 80 %. Consequently, the Artificial Neural Network (ANN), Decision Tree and Logistic Regression models were developed using the data of training set in order to predict the water quality classes of the variables of COD, BOD and NH4-N. Quality classes were predicted for the variables by inputting the data of testing set into the developed models. According to these results, it was seen that the ANN was the best prediction model for COD, the Decision Tree for BOD and the ANN and Decision Tree for NH4-N.
7
JOHNSON, DANIEL P. "The subgenus Ortmannicus (Decapoda: Cambaridae) in Texas, with descriptions of new species." Zootaxa 4468, no. 1 (September 3, 2018): 1. http://dx.doi.org/10.11646/zootaxa.4468.1.1.
Full textAbstract:
Three crayfishes of the genus Procambarus, subgenus Ortmannicus, are described from Texas, including (1) Procambarus (Ortmannicus) parvus n. sp. from the Victoria-El Campo region of the Coastal Plain; (2) P. (O.) albaughi n. sp. from the Coastal Plain in the vicinity of Houston; and (3) P. (O.) fayettei n. sp. from the eastern versant of the Colorado River drainage south of Giddings. The three new species, P. (O.) acutus, P. (O.) texanus, and P. (O.) zonangulus form a closely allied group. They are distinguished from each other primarily by characters of the first pleopod. The subspecies P. (O.) acutus acutus and P. (O.) a. cuevachicae are elevated to full species. Species accounts are provided for all Texas subgenus members and may include diagnoses, color notes, size data, locality data, life history notes, listings of associates, and information on variation and relationships. A key to the species of Ortmannicus in Texas is also presented.
8
Felicetti, Denise, Chrystian A. G. Haerter, Lucas Baumgärtner, Leonardo M. Paiz, Fábio H. Takagui, Vladimir P. Margarido, Daniel R. Blanco, Eliana Feldberg, Maelin da Silva, and Roberto L. Lui. "A New Variant B Chromosome in Auchenipteridae: The Role of (GATA)n and (TTAGGG)n Sequences in Understanding the Evolution of Supernumeraries in Trachelyopterus." Cytogenetic and Genome Research 161, no. 1-2 (2021): 70–81. http://dx.doi.org/10.1159/000513107.
Full textAbstract:
Basic and molecular cytogenetic techniques were carried out in 3 Neotropical region populations of catfishes, two of <i>Trachelyopterus galeatus</i> (one from the marshlands of Paraguay River basin and another from Lago Catalão, Amazon River basin) and one of <i>Trachelyopterus porosus</i>, a sympatric population to <i>T. galeatus</i> from the Amazon River basin. This study aimed to describe and understand the structure and evolution of <i>Trachelyopterus</i> B chromosomes, mainly through physical mapping of repetitive elements. A diploid number of 58 chromosomes was found for all individuals, as well as the presence of B chromosomes. For <i>T. porosus</i> this is the first report of a supernumerary. The sympatric species of <i>T. galeatus</i> and <i>T. porosus</i> from Amazon River had 1–3 B chromosomes and <i>T. galeatus</i> from Paraguay River had 1–2 B chromosomes, all of them showed intra- and interindividual numerical variation. Two females of <i>T. porosus</i> exhibited a new variant B chromosome (B2), previously not seen in Auchenipteridae, which might have originated from B1 chromosomes. All B chromosomes were entirely heterochromatic. In contrast to all complement A and B2 chromosomes, in which the telomeric sequences were found in the telomeric regions, B1 chromosomes of all populations were totally marked by (TTAGGG)<sub>n</sub> probes. (GATA)<sub>n</sub> sequence sites were found through all complement A chromosomes, but B1 and B2 chromosomes exhibited only a clustered block in one of the chromosome arms. The most frequent B chromosomes (B1) in all populations/species, including those previously studied in Auchenipteridae catfishes, share the following characteristics: totally heterochromatic, small, metacentric, with accumulation of repetitive (TTAGGG)<sub>n</sub> sequences, and a low number of (GATA)<sub>n</sub> copies, which might suggest a common ancient origin in <i>Trachelyopterus</i> species/populations.
9
Antonovskaya, Galina, Yana Konechnaya, Natalya Vaganova, and Alexey Morozov. "ARKHANGELSK REGION." Zemletriaseniia Severnoi Evrazii [Earthquakes in Northern Eurasia], no. 22 (November 12, 2019): 247–55. http://dx.doi.org/10.35540/1818-6254.2019.22.22.
Full textAbstract:
An overview of regional seismicity registered by the Arkhangelsk seismic network is presented. In 2013 the Arkhangelsk seismic network included 9 digital seismic stations (ARH, KRR, PRG, TMC, PRO, LASH, SLV, AMD, and ZFI/ZFI2). A large number of technogenic events were recorded by the Arkhangelsk network in the north of the East European Platform (Arkhangelsk Region). Only 2 earthquakes were registered during the entire observation period: on October 22, 2005, at 17h46m with ML=2.9, and on March 28, 2013, at 07h02m with ML=3.4. The parameters of the hypocenter of the March 28, 2013 earthquake were evaluated using all currently available source data and bulletins of Russian and foreign seismic stations. The evaluation was done using the method of Generalized beamforming, in an improved form, implemented in the program NAS (New Association System). This earthquake is reprocessed using the same initial data (26 arrivals of seismic P- and S-phases from 13 seismic stations) by the NAS program. The epicentral distances ranged from 85 to 1800 km. The final parameters of the epicenter are as follows: 28.03.2013, t0=07:02:16.2, φ=63.95°N, λ=41.57°E. The epicenter is located 80 km south of Arkhangelsk in a sparsely populated area slightly west of the Severnaya Dvina River. The probable source depths lie in the interval from 2 to 33 km and the depth with the maximal value of the rating function is 19 km. A map of earthquakes in the Arctic region is provided. Earthquakes were registered by stations of the Arkhangelsk seismic network and processed together with the waveforms from other networks. The distribution of earthquakes correlates with the seismic zones of the Arctic – the Knipovich and Gakkel ridges, Spitsbergen. There are weak earthquakes on the shelf of the Barents Sea near the Frantz Josef land archipelago, as in 2012. They relate to the trench of Franz Victoria, the border of the continental slope, and the island of Bely. The coordinates of the epicenters of 290 earthquakes were determined in 2013. The representative level of the Euro-Arctic region's magnitude for 2013 according to the Arkhangelsk network was 2.9.
10
Pongpetch, Netnapa, Pongthep Suwanwaree, Chatpet Yossapol, Songkot Dasananda, and Thongplew Kongjun. "Sediment and Nutrient Load Environmental Factors of Lam Takong River Basin, Thailand." Advanced Materials Research 1030-1032 (September 2014): 594–97. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.594.
Full textAbstract:
This study evaluated environmental factors affecting on sediment and nutrient loads in Lam Takong River basin, Northeastern region of Thailand, using the results of SWAT (Soil and Water Assessment Tool) model. The simulation from 2007-2009 showed that mean annual sediment, NO3-N and TP at the outlet were 8.134 t/ha, 0.879 kg/ha and 1.213 kg/ha, respectively. Seven factors were significantly related to soil erosion including slope, elevation, agriculture, wetland, deciduous forest, evergreen forest and orchard. In addition, two factors were significantly related to NO3-N including surface runoff and urban area. Finally, four factors were significantly related to TP including surface runoff, elevation, deciduous forest and orchard. Modification of these factors can reduce sediment and nutrient loads in this basin.
Books on the topic "Victoria River Region (N.T.)"
1
Kerr, Philip. Les Enfants de la Lampe Magique: N? 5 - l'Oeil de la For?t. Scholastic, 2011.
Find full text
2
Kerr, Philip. Les Enfants de la Lampe Magique: N? 5 - l'Oeil de la For?t. Scholastic, 2011.
Find full text
3
Les Enfants de la Lampe Magique: N? 5 - l'Oeil de la For?t. Scholastic, 2011.
Find full textBook chapters on the topic "Victoria River Region (N.T.)"
1
Craddock, John P., David H. Malone, Alex Konstantinou, John Spruell, and Ryan Porter. "Calcite twinning strains associated with Laramide uplifts, Wyoming Province." In Tectonic Evolution of the Sevier-Laramide Hinterland, Thrust Belt, and Foreland, and Postorogenic Slab Rollback (180–20 Ma). Geological Society of America, 2022. http://dx.doi.org/10.1130/2021.2555(06).
Full textAbstract:
ABSTRACT We report the results of 167 calcite twinning strain analyses (131 limestones and 36 calcite veins, n = 7368 twin measurements)t from the Teton–Gros Ventre (west; n = 21), Wind River (n = 43), Beartooth (n = 32), Bighorn (n = 32), and Black Hills (east; n = 11) Laramide uplifts. Country rock limestones record only a layer-parallel shortening (LPS) strain fabric in many orientations across the region. Synorogenic veins record both vein-parallel shortening (VPS) and vein-normal shortening (VNS) fabrics in many orientations. Twinning strain overprints were not observed in the limestone or vein samples in the supracrustal sedimentary veneer (i.e., drape folds), thereby suggesting that the deformation and uplift of Archean crystalline rocks that form Laramide structures were dominated by offset on faults in the Archean crystalline basement and associated shortening in the midcrust. The twinning strains in the pre-Sevier Jurassic Sundance Formation, in the frontal Prospect thrust of the Sevier belt, and in the distal (eastern) foreland preserve an LPS oriented approximately E-W. This LPS fabric is rotated in unique orientations in Laramide uplifts, suggesting that all but the Bighorn Mountains were uplifted by oblique-slip faults. Detailed field and twinning strain studies of drape folds identified second-order complexities, including: layer-parallel slip through the fold axis (Clarks Fork anticline), attenuation of the sedimentary section and fold axis rotation (Rattlesnake Mountain), rotation of the fold axis and LPS fabric (Derby Dome), and vertical rotations of the LPS fabric about a horizontal axis with 35% attenuation of the sedimentary section (eastern Bighorns). Regional cross sections (E-W) across the Laramide province have an excess of sedimentary veneer rocks that balance with displacement on a detachment at 30 km depth and perhaps along the Moho discontinuity at 40 km depth. Crustal volumes in the Wyoming Province balance when deformation in the western hinterland is included.