The impact of improved land administration in Nicaragua

2021 ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 199
Author(s):  
Dieudonné Bahati Shamamba ◽  
Espoir Bisimwa Basengere ◽  
Philippe Lebailly

In Africa, there is still observed a land related legal plurality despite innovations undertaken since colonial times. In DR Congo, while by law land remains the property of the State, it remains difficult to manage rural lands, ignoring customary practices. In fact, alongside the “modern” land administration, the majority of rural lands are covered by customary contracts. Meanwhile, these contracts have evolved due to different socio-political issues in the DRC and particularly in its eastern part. This study aimed at understanding these changes and thus the impact resulted in agricultural activities, especially the small farmers’ technology choice. The study is based on households’ surveys in the Mbinga Sud zone as well as from other stakeholders on land in the Kalehe territory, South Kivu province, eastern DRC. Through this study, it is noted that customary land contracts have sufficiently evolved due to the population growth, innovations taken in land administration in the country, the wars that occurred in the eastern DR Congo, the attractiveness of rural land by elites and rich businessmen leading to land concentration etc. Given this situation, some practices such as purchase and lease of land were thus developed to cope with weak customary land acquisition mechanisms, the land scarcity and / or land depletion and the fear of land grabbing by the strongest. These changes also have an impact on some agricultural practices, including the fertilization of farms, the choice of crops and varieties to grow as well as many other cultivation techniques.   Received: 3 June 2021 / Accepted: 4 September 2021 / Published: 5 November 2021


2021 ◽  
Vol 18 (1) ◽  
pp. 64
Author(s):  
JOSEPH OYEWALE OYEDEJI

Previous studies on impact of land administration on housing delivery had only examined impact of some of the functions of land administration on housing delivery and not impact of the four functions of land administration on housing delivery. This study filed this gap by examining the impact of the four functions of land administration on private housing delivery in Lagos, Nigeria. The study population is members of Real Estate Developers Association of Nigeria (REDAN). The population size is 1400 and systematic random sampling technique was employed to have a sample size of 140. 120 questionnaires were retrieved and reliable for analysis. Data gathered were analyzed through descriptive statistics, tables, mean and multiple regressions. Findings from the study revealed that reduction in quantity produced is the most prominent impact of land tenure, delay in time of housing delivery is the impact of land use and land development and change in location of property is the most prominent impact of land taxation. Also, the most prominent problem of land administration is lack of computerized land administration system. The study established that land administration has significant impact on private housing delivery. It was recommended that bureaucracy that surrounds land administration should be reduced in order to reduce associated time and cost. Also, the land administration system should be computerized for easy land administration services.Keywords: Land, Land administration, Housing, Housing Delivery, Lagos


1962 ◽  
Vol 14 ◽  
pp. 415-418
Author(s):  
K. P. Stanyukovich ◽  
V. A. Bronshten

The phenomena accompanying the impact of large meteorites on the surface of the Moon or of the Earth can be examined on the basis of the theory of explosive phenomena if we assume that, instead of an exploding meteorite moving inside the rock, we have an explosive charge (equivalent in energy), situated at a certain distance under the surface.


1962 ◽  
Vol 14 ◽  
pp. 169-257 ◽  
Author(s):  
J. Green

The term geo-sciences has been used here to include the disciplines geology, geophysics and geochemistry. However, in order to apply geophysics and geochemistry effectively one must begin with a geological model. Therefore, the science of geology should be used as the basis for lunar exploration. From an astronomical point of view, a lunar terrain heavily impacted with meteors appears the more reasonable; although from a geological standpoint, volcanism seems the more probable mechanism. A surface liberally marked with volcanic features has been advocated by such geologists as Bülow, Dana, Suess, von Wolff, Shaler, Spurr, and Kuno. In this paper, both the impact and volcanic hypotheses are considered in the application of the geo-sciences to manned lunar exploration. However, more emphasis is placed on the volcanic, or more correctly the defluidization, hypothesis to account for lunar surface features.


1997 ◽  
Vol 161 ◽  
pp. 197-201 ◽  
Author(s):  
Duncan Steel

AbstractWhilst lithopanspermia depends upon massive impacts occurring at a speed above some limit, the intact delivery of organic chemicals or other volatiles to a planet requires the impact speed to be below some other limit such that a significant fraction of that material escapes destruction. Thus the two opposite ends of the impact speed distributions are the regions of interest in the bioastronomical context, whereas much modelling work on impacts delivers, or makes use of, only the mean speed. Here the probability distributions of impact speeds upon Mars are calculated for (i) the orbital distribution of known asteroids; and (ii) the expected distribution of near-parabolic cometary orbits. It is found that cometary impacts are far more likely to eject rocks from Mars (over 99 percent of the cometary impacts are at speeds above 20 km/sec, but at most 5 percent of the asteroidal impacts); paradoxically, the objects impacting at speeds low enough to make organic/volatile survival possible (the asteroids) are those which are depleted in such species.


1997 ◽  
Vol 161 ◽  
pp. 189-195
Author(s):  
Cesare Guaita ◽  
Roberto Crippa ◽  
Federico Manzini

AbstractA large amount of CO has been detected above many SL9/Jupiter impacts. This gas was never detected before the collision. So, in our opinion, CO was released from a parent compound during the collision. We identify this compound as POM (polyoxymethylene), a formaldehyde (HCHO) polymer that, when suddenly heated, reformes monomeric HCHO. At temperatures higher than 1200°K HCHO cannot exist in molecular form and the most probable result of its decomposition is the formation of CO. At lower temperatures, HCHO can react with NH3 and/or HCN to form high UV-absorbing polymeric material. In our opinion, this kind of material has also to be taken in to account to explain the complex evolution of some SL9 impacts that we observed in CCD images taken with a blue filter.


1997 ◽  
Vol 161 ◽  
pp. 179-187
Author(s):  
Clifford N. Matthews ◽  
Rose A. Pesce-Rodriguez ◽  
Shirley A. Liebman

AbstractHydrogen cyanide polymers – heterogeneous solids ranging in color from yellow to orange to brown to black – may be among the organic macromolecules most readily formed within the Solar System. The non-volatile black crust of comet Halley, for example, as well as the extensive orangebrown streaks in the atmosphere of Jupiter, might consist largely of such polymers synthesized from HCN formed by photolysis of methane and ammonia, the color observed depending on the concentration of HCN involved. Laboratory studies of these ubiquitous compounds point to the presence of polyamidine structures synthesized directly from hydrogen cyanide. These would be converted by water to polypeptides which can be further hydrolyzed to α-amino acids. Black polymers and multimers with conjugated ladder structures derived from HCN could also be formed and might well be the source of the many nitrogen heterocycles, adenine included, observed after pyrolysis. The dark brown color arising from the impacts of comet P/Shoemaker-Levy 9 on Jupiter might therefore be mainly caused by the presence of HCN polymers, whether originally present, deposited by the impactor or synthesized directly from HCN. Spectroscopic detection of these predicted macromolecules and their hydrolytic and pyrolytic by-products would strengthen significantly the hypothesis that cyanide polymerization is a preferred pathway for prebiotic and extraterrestrial chemistry.


Author(s):  
Lucien F. Trueb

Crushed and statically compressed Madagascar graphite that was explosively shocked at 425 kb by means of a planar flyer-plate is characterized by a black zone extending for 2 to 3 nun below the impact plane of the driver. Beyond this point, the material assumes the normal gray color of graphite. The thickness of the black zone is identical with the distance taken by the relaxation wave to overtake the compression wave.The main mechanical characteristic of the black material is its great hardness; steel scalpels and razor blades are readily blunted during attempts to cut it. An average microhardness value of 95-3 DPHN was obtained with a 10 kg load. This figure is a minimum because the indentations were usually cracked; 14.8 DPHN was measured in the gray zone.


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