Phyllachora maydis (black spot of maize).

2021 ◽  
Author(s):  
Keyword(s):  
Black Spot ◽  
The West ◽  
Climatic Zones ◽  
Initial Inoculum ◽  
Minor Problem ◽  
Significant Damage ◽  
Tar Spot ◽  
Maize Leaves ◽  
Rain Splash ◽  
A Minor

Abstract P. maydis, a perithecial ascomycete, causes a tar spot disease of maize that is usually a minor problem. More significant damage to leaves and yield is caused by the fungus Monographella maydis whose infection follows that of the tar-spot fungus, at least where studied in Mexico (Hock et al., 1992; 1995). The source of initial inoculum for both fungi is not determined. The disease they cause occurs in the cooler and higher elevations of Mexico, and Central and South America, and the West Indies, so their ability to spread over land through other climatic zones may be limited. Not known to be seedborne or to infect other species, P. maydis could be transported on fresh or dry maize leaves or husks, or products made from them, from which ascospores would have to be produced and carried by wind or rain splash to maize [Zea mays].

Cattle keeping, fertilization and water quality - a pilot study

1994 ◽  
Vol 30 (9) ◽  
pp. 249-253
Author(s):  
Pascal Maret
Keyword(s):  
Water Management ◽  
Water Quality ◽  
Surface Water ◽  
Pilot Study ◽  
Global Approach ◽  
The West ◽  
Breeding Management ◽  
Significant Damage ◽  
Cultivation Methods ◽  
Cattle Husbandry

Significant damage to surface water is caused by cattle husbandry. Only one global approach of water management and farming techniques (breeding management and cultivation methods) will ensure significant results. A pilot study run in the west of France proved that water quality can easily be improved by renovating the cattle buildings. It also showed that manure used as a fertilizer covers cultivation needs, which allows substantial savings for the farmers.

Features of the course of birth in northern domestic deer in the conditions of the North-East of Russia (Yakutia)

2021 ◽  
pp. 23-28
Author(s):  
V. Fedorov ◽  
T. Ippolitova ◽  
E. Sleptsov ◽  
K. Plemyashov
Keyword(s):  
Living Environment ◽  
Behavioral Reactions ◽  
Climatic Zones ◽  
North East ◽  
The North ◽  
The Republic ◽  
A Minor ◽  
Harsh Conditions ◽  
Generic Process

Purpose: Determination of the peculiarities of the behavior and the flow of childbirth in females (wrenches) of the northern home deer of the Even Breed of the Republic of Sakha (Yakutia), depending on the natural climatic zone of breeding.Material and research methods. Research of the reservation of the hotel's reservoir of the northern home deer was held from April to June in the reindeer herds of the mountain-taiga (FSUE «Yuchjuyuskoye») and the Tundrov zones (SHPZK «Taba-Yana») of the Republic of Sakha (Yakutia) in the conditions of nomadic home reindeer herding since 2013 2018 In the study, the method of observation is used with the registration of motor activity of animals and the activities of individual bodies in a certain living environment.Results. To fix some patterns and species features of the generic process, 8 main elementary behavioral reactions spent venizables of northern domestic deer per day before childbirth: walking, feeding feed, chewing, leisure standing, rest lying, sleep, urination (how many times / total time), defecation (how many times / total time). Also marked 4 behavioral reactions on the hotel day: the exploitation time of the fetus, the licking of the calf, the time of the calf on his feet after delivery, the first reception of the mosper calf after birth. For each parameter, data reflected in tabular format is obtained.Conclusion. It has been established that the degree of adaptation of the northern domestic deer to the harsh conditions of existence in various natural-climatic zones of the Republic of Sakha (Yakutia) is very high, which is manifested in a minor difference in the duration of the generic process and behavioral reactions at the vainer of the mountain and tundra and tundra dilution zones.

Ethnicity and Anthropology in the Soviet Union

1977 ◽  
Vol 18 (2) ◽  
pp. 201-220 ◽  
Author(s):  
Ernest Gellner
Keyword(s):  
Soviet Union ◽  
Social Anthropology ◽  
The West ◽  
Academic World ◽  
Soviet Academy ◽  
The Soviet Union ◽  
A Minor ◽  
Interaction History ◽  
Academy Of Sciences ◽  
The Revolution

InThePastDecade, a minor revolution has taken place within Soviet Anthropology. ‘Ethnography’ is one of the recognised disciplines in the Soviet academic world, and corresponds roughly to what in the West is called social anthropology. This revolution has as yet been barely noticed by outside observers (1). Its leader is Yulian Bromley, a very Russian scholar with a very English surname, Director of the Institute of Ethnography of the Soviet Academy of Sciences. The revolution consists of making ethnography into the studies of ethnos-es, or, in current Western academic jargon, into the study of ethnicity—in other words the study of the phenomena of national feeling, identity, and interaction. History is about chaps, geography is about maps, and ethnography is about ethnoses. What else ? The revolution is supported by arguments weightier than mere verbal suggestiveness; but by way of persuasive consideration, etymology is also invoked.

scholarly journals Kinetic studies on two isoforms of acetyl-CoA carboxylase from maize leaves

1996 ◽  
Vol 318 (3) ◽  
pp. 997-1006 ◽  
Author(s):  
Derek HERBERT ◽  
Lindsey J PRICE ◽  
Claude ALBAN ◽  
Laure DEHAYE ◽  
Dominique JOB ◽  
...  
Keyword(s):  
Kinetic Studies ◽  
Product Inhibition ◽  
Hill Equation ◽  
Acetyl Coa Carboxylase ◽  
Acetyl Coa ◽  
Maize Leaves ◽  
Ic50 Values ◽  
A Minor ◽  
The Hill

The steady-state kinetics of two multifunctional isoforms of acetyl-CoA carboxylase (ACCase) from maize leaves (a major isoform, ACCase1 and a minor isoform, ACCase2) have been investigated with respect to reaction mechanism, inhibition by two graminicides of the aryloxyphenoxypropionate class (quizalofop and fluazifop) and some cellular metabolites. Substrate interaction and product inhibition patterns indicated that ADP and Pi products from the first partial reaction were not released before acetyl-CoA bound to the enzymes. Product inhibition patterns did not match exactly those predicted for an ordered Ter Ter or a random Ter Ter mechanism, but were close to those postulated for an ordered mechanism. ACCase2 was about 1/2000 as sensitive as ACCase1 to quizalofop but only about 1/150 as sensitive to fluazifop. Fitting inhibition data to the Hill equation indicated that binding of quizalofop or fluazifop to ACCase1 was non-cooperative, as shown by the Hill constant (napp) values of 0.86 and 1.16 for quizalofop and fluazifop respectively. Apparent inhibition constant values (K´ from the Hill equation) for ACCase1 were 0.054 µM for quizalofop and 21.8 µM for fluazifop. On the other hand, binding of quizalofop or fluazifop to ACCase2 exhibited positive co-operativity, as shown by the napp values of 1.85 and 1.59 for quizalofop and fluazifop respectively. K´ values for ACCase2 were 1.7 mM for quizalofop and 140 mM for fluazifop. Kinetic parameters for the co-operative binding of quizalofop to maize ACCase2 were close to those of another multifunctional ACCase of limited sensitivity to graminicide, ACC220 from pea. Inhibition of ACCase1 by quizalofop was mixed-type with respect to acetyl-CoA or ATP, but the concentration of acetyl-CoA had the greater effect on the level of inhibition. Neither ACCase1 nor ACCase2 was appreciably sensitive to CoA esters of palmitic acid (16:0) or oleic acid (18:1). Approximate IC50 values were 10 µM (ACCase2) and 50 µM (ACCase1) for both CoA esters. Citrate concentrations up to 1 mM had no effect on ACCase1 activity. Above this concentration, citrate was inhibitory. ACCase2 activity was slightly stimulated by citrate over a broad concentration range (0.25–10 mM). The significance of possible effects of acyl-CoAs or citrate in vivo is discussed.

scholarly journals Monitoring changes of the Antarctic Ice sheet by GRACE, ICESat and GNSS

2019 ◽  
Vol 49 (4) ◽  
pp. 403-424
Author(s):  
Fang Zou ◽  
Robert Tenzer ◽  
Samurdhika Rathnayake
Keyword(s):  
Mass Loss ◽  
Ice Sheet ◽  
The West ◽  
Antarctic Ice Sheet ◽  
West Antarctic Ice Sheet ◽  
Ice Volume ◽  
West Antarctic ◽  
Elevation Changes ◽  
A Minor ◽  
The Antarctic

Abstract In this study, we estimate the ice mass changes, the ice elevation changes and the vertical displacements in Antarctica based on analysis of multi-geodetic datasets that involve the satellite gravimetry (GRACE), the satellite altimetry (ICESat) and the global navigation satellite systems (GNSS). According to our estimates, the total mass change of the Antarctic ice sheet from GRACE data is −162.91 Gt/yr over the investigated period between April 2002 and June 2017. This value was obtained after applying the GIA correction of −98.12 Gt/yr derived from the ICE-5G model of the glacial iso-static adjustment. A more detailed analysis of mass balance changes for three individual drainage regions in Antarctica reveal that the mass loss of the West Antarctic ice sheet was at a rate of −143.11 Gt/yr. The mass loss of the Antarctic Peninsula ice sheet was at a rate of −24.31 Gt/yr. The mass of the East Antarctic ice sheet increased at a rate of 5.29 Gt/yr during the investigated period. When integrated over the entire Antarctic ice sheet, average rates of ice elevation changes over the period from March 2003 to October 2009 derived from ICESat data represent the loss of total ice volume of −155.6 km3.The most prominent features in ice volume changes in Antarctica are characterized by a strong dynamic thinning and ice mass loss in the Amundsen Sea Embayment that is part of the West Antarctic ice sheet. In contrast, coastal regions between Dronning Maud Land and Enderby Land exhibit a minor ice increase, while a minor ice mass loss is observed in Wilkes Land. The vertical load displacement rates estimated from GRACE and GPS data relatively closely agree with the GIA model derived based on the ice-load history and the viscosity profile. For most sites, the GRACE signal appears to be in phase and has the same amplitude as that obtained from the GPS vertical motions while other sites exhibit some substantial differences possibly attributed to thermo-elastic deformations associated with surface temperature.

Gauging (Perceived) Corruption

2021 ◽  
pp. 45-70
Author(s):  
Daron R. Shaw ◽  
Brian E. Roberts ◽  
Mijeong Baek
Keyword(s):  
Public Opinion ◽  
Campaign Finance ◽  
Campaign Spending ◽  
Central Issue ◽  
Elected Officials ◽  
Limited Evidence ◽  
Descriptive Data ◽  
Citizens United ◽  
Minor Problem ◽  
A Minor

Chapter 3 aims to gauge both the reality of, as well as public opinion on, the central issue of corruption. It investigates public opinion on corruption among elected officials, source of corruption, effectiveness of laws and regulations in mitigating corruption, support for campaign finance reforms, etc. The data strongly suggest that people think corruption is rampant despite limited evidence that quid pro quo corruption is anything more than a minor problem. This fundamental attitude has not changed much in the wake of the Citizens United decision. Furthermore, they believe the problem is mostly intractable and that most of the commonly proposed reforms of the campaign finance system will not work. Nevertheless, they still support these reforms. Moving from simple descriptive data to more associational analyses, this chapter also explores the effect of campaign finance laws on campaign spending and then the effect of both on corruption attitudes. The results are not what the Court would have expected.

E. H. Gombrich's Adoption of the Formula form Follows Function: A Case of Mistaken Identity?

Human Affairs ◽  
2009 ◽  
Vol 19 (3) ◽  
Author(s):  
Jan Michl
Keyword(s):  
Design Theory ◽  
Historical Context ◽  
Design History ◽  
Mistaken Identity ◽  
Minor Problem ◽  
A Minor

E. H. Gombrich's Adoption of the Formula form Follows Function: A Case of Mistaken Identity?This article is a longer note on what is a minor problem in the oeuvre of a great art historian. Its theme is E. H. Gombrich's use of the formula form follows function as the summary of his commonsense approach to the problem of style change. Although I am not sure how interesting this inquiry is in an art historical context, from the perspective of my own field of design history and of modernist design theory, Gombrich's adoption of the formula constitutes an intriguing problem.

Identification of Canned Salmon Species by Scale Characteristics

1979 ◽  
Vol 62 (4) ◽  
pp. 722-727
Author(s):  
Richard T Newton
Keyword(s):  
Chinook Salmon ◽  
Collaborative Study ◽  
Modified Method ◽  
Minor Problem ◽  
Scale Characteristics ◽  
A Minor

Abstract A modified method and key for the identification of canned salmon species have been subjected to an additional collaborative study. Of 54 samples examined, 11 collaborators accurately identified 10 of 10 samples (100%) of sockeye, 11 of 11 samples (100%) of chum, 11 of 11 samples (100%) of pink, 11 of 11 samples (100%) of coho, and 11 of 11 samples (100%) of chinook. Nine of 11 collaborators were able to find in all samples usable scales with intact clear areas for mounting and identification. Two of the 11 had a minor problem. The improved, modified method and key have been adopted as official first action for the identification of the sockeye, chum, pink, coho, and chinook salmon species to replace method 18.089.

scholarly journals Quality of Drinking Water from Springs in Palestine: West Bank as a Case Study

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Azza Daghara ◽  
Issam A. Al-Khatib ◽  
Maher Al-Jabari
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
West Bank ◽  
Field Work ◽  
Quality Parameters ◽  
Total Hardness ◽  
Residual Chlorine ◽  
The West ◽  
A Minor ◽  
Physical And Chemical

The shortage of fresh water creates acute challenges in the West Bank of Palestine. Springs provide a main water resource in the West Bank. Investigating springs’ water quality is essential step for promoting their public use. The aim of this research is to assess the microbiological and physiochemical quality parameters of drinking water from springs. The study methodology included sampling through field work and laboratory testing for water quality parameters using standard procedures. The study area covered all locations containing licensed springs by the Palestinian Water Authority in the West Bank of Palestine. The number of collected samples was 127 covering 300 springs. The chemical, physical, and biological parameters for each sample were measured. Then, the obtained characteristics were evaluated based on national and international quality standards (PSI and WHO). The investigated parameters included temperature, pH, EC, total hardness, concentrations of nitrate, sodium ions, total chlorine, residual chlorine, turbidity, and total and faecal coliforms. Most of investigated physical and chemical parameters were within the acceptable standard limits. However, the turbidity and chloride and nitrate concentrations exceeded standard limits. The findings indicate that only a minor fraction of the samples (2%) requires chlorination treatment, while most of the springs (97% of samples) are classified as possessing no risk.

scholarly journals Ocellus-bearing Neobythites species (Teleostei: Ophidiidae) from the West Atlantic with description of a new species

Zootaxa ◽  
2009 ◽  
Vol 2228 (1) ◽  
pp. 57-68 ◽  
Author(s):  
JØRGEN G. NIELSEN ◽  
FRANZ UIBLEIN ◽  
MICHAEL M. MINCARONE
Keyword(s):  
New Species ◽  
Black Spot ◽  
Caribbean Sea ◽  
The West ◽  
Dorsal Fin ◽  
Eastern Brazil ◽  
The Caribbean ◽  
Small Black Spot ◽  
Year 2000 ◽  
A New Species

Three species of the ophidiid genus Neobythites containing ocelli in the dorsal fin are known from the West Atlantic: Neobythites gilli Goode and Bean 1885, N. ocellatus Günther 1887 and N. monocellatus Nielsen 1999. In the year 2000, 18 specimens of Neobythites were caught on the upper continental slope off eastern Brazil. This is the first documented record of a Neobythites specimen off Brazil since the holotype of N. ocellatus was caught in 1873. Seventeen of the specimens are referable to N. ocellatus and one to N. monocellatus. Until now the distribution of N. ocellatus was considered to be from off Atlantic Florida, the Caribbean Sea and then a gap of 4500 km to the type locality off Brazil. However, the holotype and the 17 specimens differ from the more northerly recorded specimens in pattern and number of spots and ocelli on the dorsal fin. The 18 Brazilian specimens have two distinct ocelli, one near the origin of the dorsal fin and one above the midpoint of the fish, and further back occasionally a small, black spot, while the northern specimens occasionally have a small, black spot near the origin of the fin, a distinct ocellus above the midpoint and up to three ocelli further posteriorly. Consequently a new species, N. multiocellatus, is described based on 59 specimens from the Caribbean Sea to off Atlantic Florida. The record of the N. monocellatus specimen extends its distribution about 3000 km southwards. A comparison of the four ocellus-bearing species from the West Atlantic is made.

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