scholarly journals Host Suitability of Weeds to the Root Lesions Nematoid in Soybean Areas in the North of Goias, Brazil

2019 ◽  
Vol 11 (4) ◽  
pp. 485
Author(s):  
Rafael M. da Silva ◽  
Anderli D. F. Rios ◽  
Denise R. Conceição ◽  
Wilian H. D. Buso ◽  
Alan S. Machado ◽  
...  
Keyword(s):  
Northern Region ◽  
Host Suitability ◽  
Weed Species ◽  
Population Densities ◽  
Commelina Benghalensis ◽  
The North ◽  
As Species ◽  
Hyptis Suaveolens ◽  
History Of ◽  
Natural Infestation

Several studies have done more on weed and nematode hosts. It is important to know a host of weeds and P. brachyurus in areas cultivated with soy. This nematode can stay in weed roots even in the absence of plants grown in the off-season, making it difficult to control them. The objective was to evaluate the host suitability of emerged weed species in cultivated areas with a soybean crop to the P. brachyurus nematode under natural infestation conditions. The surveys were conducted in commercial properties located in the municipalities of Campinorte and Rialma, both in the northern region of the state of Goias, Brazil under the no-tillage and conventional system, respectively, with a history of high nematode population densities. We evaluated 19 weed species with the highest expressivity in the properties. The population densities of the nematode ranged RFom 23 to 17,113 and 55 to 4,221 specimens per 10 grams of roots respectively. All as weed species evaluated as hosts of P. brachyurus. As species, Hyptis suaveolens, Sida cardifolia, Senna occidentalis, Coneyza canadensis and Commelina benghalensis had low population densities.

“Opting Out”: An Experiment with Jurisdiction in Northern Nigeria

1964 ◽  
Vol 8 (1) ◽  
pp. 20-28
Author(s):  
S. S. Richardson
Keyword(s):  
African State ◽  
Northern Region ◽  
Regional Government ◽  
Northern Nigeria ◽  
Legal Systems ◽  
Opting Out ◽  
Strong Case ◽  
The North ◽  
History Of ◽  
The Government

With the commencement of the Native Courts (Amendment) Law, 1961, the Government of the Northern Region of Nigeria abolished “opting out”, an experiment with jurisdiction which must surely be unique within the history of modern legal systems and therefore worthy of recording before the facts are obscured and lest any other African state, faced with similar difficulties, is tempted to adopt this expedient as a temporary palliative to meet a similar situation. It is all the more desirable to publish the facts since the strong case for abolition presented by the Northern Regional Government is in danger of being lost by default. On 14th October, 1961, the Daily Service in Nigeria published a bitter attack on the Native Courts (Amendment) Law, 1961, under the title “The light goes out in the North”.

scholarly journals Evaluación de la energía mareomotriz en el norte del Golfo de California con fines de generación de energía eléctrica

2019 ◽  
pp. 33-39
Author(s):  
José Ramón Quiñonez-Osuna ◽  
Silvio Guido Marinone-Moschetto ◽  
María Dolores Flores-Aguilar ◽  
Domingo Carmona-Duarte
Keyword(s):  
Gulf Of California ◽  
Northern Region ◽  
Tidal Currents ◽  
The North ◽  
Generation Plant ◽  
Continuous Generation ◽  
Tidal Changes ◽  
History Of ◽  
Data History

The tidal currents constitute a clean and inexhaustible source of energy. The determination of its magnitude in the north of the Gulf of California with a view to its use, represented the central objective of this work. The methodology included an exhaustive search of measurements of tidal currents, the generation of a text file of ordered time-speed data (history of speeds as a tabulation) from the found graphs of speeds, and finally its processing, which consisted of the histories of the current power density and power generated by a standard turbine, as well as the corresponding graphs of frequency and equivalence with respect to a continuous generation plant. The results show that the energy available in the tidal currents of the northern region of the Gulf of California is lower than that of other areas of the world with radical tidal changes; however, it is considered that the installation of several farms instead of one, located in the places where the currents reach higher speeds, together with the use of other renewable sources available in the region, constitute altogether an important option that must be considered.

Phylogeography and species delimitation in the New Zealand endemic, genetically hypervariable harvestman species, Aoraki denticulata (Arachnida, Opiliones, Cyphophthalmi)

2014 ◽  
Vol 28 (4) ◽  
pp. 401 ◽  
Author(s):  
Rosa Fernández ◽  
Gonzalo Giribet
Keyword(s):  
New Zealand ◽  
Species Delimitation ◽  
Northern Region ◽  
Genetic Connectivity ◽  
The North ◽  
Geographic Structure ◽  
Large Numbers ◽  
North Eastern ◽  
History Of ◽  
Complex Scenario

Aoraki denticulata, a widespread mite harvestman endemic to the NW South Island of New Zealand, was postulated to constitute an old lineage with deep genetic history. Expanding on previous studies, we explored its genetic diversity and population structure, phylogeography and diversification patterns. We also examined the systematic implications of such a complex scenario through species delimitation analyses under coalescent-based and barcoding gap discovery methodologies. Our results depict the deep evolutionary history of the A. denticulata lineage, which shows high geographic structure and low genetic connectivity among modern populations. Aoraki denticulata is further subdivided into three lineages: a lineage presently inhabiting the northern region of the Southern Alps (and including the subspecies A. d. major), a second lineage in the north-eastern part of the sampled land, and a third one occupying the south-eastern localities. When using species delimitation methods based on coalescence approaches, large numbers of cryptic species were estimated. Based on morphological and biological evidence, we thus argue that these methods may overestimate species in cases in which genetic divergence is unusually large and discuss the systematic implications of our findings.

Scutellonema bradys and Pratylenchus spp. associated with weeds in yam fields

Nematology ◽  
2019 ◽  
Vol 21 (8) ◽  
pp. 805-811
Author(s):  
Alison V.D.L. De Almeida ◽  
Maria de Fatima S. Muniz ◽  
Marissônia De A. Noronha ◽  
Renan C. De Souza ◽  
Gilson M. Filho ◽  
...  
Keyword(s):  
High Frequency ◽  
Plant Disease ◽  
Nematode Species ◽  
Frequency Of Occurrence ◽  
Weed Species ◽  
Ageratum Conyzoides ◽  
Dry Rot ◽  
Commelina Benghalensis ◽  
History Of ◽  
Rot Disease

Summary Dry root disease of yam (Dioscorea spp.), caused by Scutellonema bradys, Pratylenchus coffeae and P. brachyurus, is prominent among the plant disease problems of yam in Brazil. In order to evaluate the association of these nematode species with weeds, field sampling was performed during 2016 and 2017 in yam-growing areas with a history of the disease within the major counties in the state of Alagoas, Brazil. The frequency of occurrence of both weeds and nematodes was determined, in addition to the estimated population of nematodes in roots. Forty-three weed species were found, of which 23 were infected with at least one of the causal agents of the dry rot disease, Pratylenchus spp. being the most prevalent in the fields. Ageratum conyzoides, Commelina benghalensis and Emilia coccinea (in Zona da Mata) and C. benghalensis (Agreste region) were especially important due to their high frequency of occurrence and also for supporting populations of S. bradys and Pratylenchus spp. Cyperus flavus, E. coccinea and Spermacoce verticillata are now recorded as new weed species associated with S. bradys.

Ras al Khaimah: further archaeological discoveries

Antiquity ◽  
1976 ◽  
Vol 50 (200) ◽  
pp. 216-222
Author(s):  
Beatrice De Cardi
Keyword(s):  
United Arab Emirates ◽  
The State ◽  
Focused Attention ◽  
North East ◽  
The North ◽  
History Of ◽  
The City

Ras a1 Khaimah is the most northerly of the seven states comprising the United Arab Emirates and its Ruler, H. H. Sheikh Saqr bin Mohammad al-Qasimi, is keenly interested in the history of the state and its people. Survey carried out there jointly with Dr D. B. Doe in 1968 had focused attention on the site of JuIfar which lies just north of the present town of Ras a1 Khaimah (de Cardi, 1971, 230-2). Julfar was in existence in Abbasid times and its importance as an entrep6t during the sixteenth and seventeenth centuries-the Portuguese Period-is reflected by the quantity and variety of imported wares to be found among the ruins of the city. Most of the sites discovered during the survey dated from that period but a group of cairns near Ghalilah and some long gabled graves in the Shimal area to the north-east of the date-groves behind Ras a1 Khaimah (map, FIG. I) clearly represented a more distant past.

Sequencing Analysis and Phylogenetic Tree of HPV Isolated from Breast Cancer Patients at Thi-Qar Province/Iraq

2020 ◽  
pp. 37-40
Keyword(s):  
Nucleotide Sequence ◽  
Phylogenetic Tree ◽  
Evolutionary Relationship ◽  
Nucleotide Sequencing ◽  
Sequencing Analysis ◽  
Breast Cancer Patients ◽  
The North ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
History Of

Genetic variety examination has demonstrated fundamental to the understanding of the epidemiological and developmental history of Papillomavirus (HPV), for the development of accurate diagnostic tests and for efficient vaccine design. The HPV nucleotide diversity has been investigated widely among high-risk HPV types. To make the nucleotide sequence of HPV and do the virus database in Thi-Qar province, and compare sequences of our isolates with previously described isolates from around the world and then draw its phylogenetic tree, this study done. A total of 6 breast formalin-fixed paraffin-embedded (FFPE) of the female patients were included in the study, divided as 4 FFPE malignant tumor and 2 FFPE of benign tumor. The PCR technique was implemented to detect the presence of HPV in breast tissue, and the real-time PCR used to determinant HPV genotypes, then determined a complete nucleotide sequence of HPV of L1 capsid gene, and draw its phylogenetic tree. The nucleotide sequencing finding detects a number of substitution mutation (SNPs) in (L1) gene, which have not been designated before, were identified once in this study population, and revealed that the HPV16 strains have the evolutionary relationship with the South African race, while, the HPV33 and HPV6 showing the evolutionary association with the North American and East Asian race, respectively.

North American Association for the Study of Religion (NAASR)

2015 ◽  
Vol 44 (2) ◽  
pp. 29-30
Author(s):  
Matt Sheedy
Keyword(s):  
North American ◽  
American Association ◽  
The North ◽  
History Of

I interviewed Russell McCutcheon back in March 2015, about his new role as president of the North American Association for the Study of Religion (NAASR), asking him about the history of the organization, goals for his tenure, and developments for NAASR’s upcoming conference in Atlanta in November 2015.

Assessment of the state of the heat economy of the Republic of Sakha (Yakutia)

2020 ◽  
Vol 93 (4) ◽  
pp. 88-100
Author(s):  
V. R. Darbasov ◽  
◽  
M. Р. Solomonov ◽  
Keyword(s):  
Supply And Demand ◽  
Northern Region ◽  
Heat Energy ◽  
The State ◽  
Resource Saving ◽  
The North ◽  
Production And Consumption ◽  
Fixed Assets ◽  
The Republic ◽  
Heat Energy Market

The article assesses the state of the heat economy of the Northern region. The purpose of the article is to reveal the reasons for chronic backwardness of the region's industry from the average Russian indicators. To achieve the goal, solved the following problems: the features of heat economy in the North, analyzes the housing development, production and consumption of heat energy, as the sources of heat energy and heat networks, and also reforms in the heat economy of the region, based on which conclusions on assessment of the heat economy of the region. In recent years, there has been a twofold decrease in the rate of renewal of fixed assets of the heat economy against the norm, low rates of introduction of the resource-saving technologies in the heat economy, and in general, in the housing and communal services of the region. The level of marginal balance of supply and demand in the heat energy market is determined. The article is written to correct the decisions of the Federal and regional Executive authorities in terms of ensuring the reliability of heat economy of the Northern region.

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