Douala, situated between latitude 4.00 - 4.15 and longitude 9.65 - 9.95, is the economic capital of Cameroon in the Littoral Region and it hosts more than 80% of the industries in the Country. Increased urbanization and agricultural activities have a potential for trace metal contamination as such, the trace metal evaluation of groundwater in Douala begs our attention. This study investigated the trace metal content of groundwater sources; determined estimates of the health hazard and pollution ...

Geology  Hydrology  Environmental Sciences 

In many geographic areas influenced by tropical and temperate climates, natural forest ecosystems have been destroyed in favour of plantations of allochthonous trees which are economically profitable for different aspects of the timber industry. Some of these mature plantations degrade the soils and inhibit natural regeneration of the local flora; others, due to the physical constraints they impose, can contribute to the installation and the development of autochthonous taxa. The plantations of ...

Ecology  Plant Science  Ecosystem Science  Biodiversity 

Objective: To investigate the correlation between the differences between the two adjacent pulse wave velocities and body mass index (BMI). Methods: Body mass index and pulse velocity difference were measured in 60 patients. Results: The difference of pulse wave velocity between adjacent two times in patients with BMI < 24 was less than that in patients with BMI ≥ 24, the difference was statistically significant. Conclusion: Pulse velocity difference is related to body mass index.

Diagnostics 

The original online version of this article (Liu, J.C. (2016) A Cosmological Model and Modifications to Einstein’s Theory of Relativity. Open Access Library Journal, 3: e2394. http://dx.doi.org/10.4236/oalib.1102394) unfortunately contains some mistakes. The author wishes to correct the errors in the following version.

Special Theory of Relativity  Theoretical Physics 

The original online version of this article (Sakuramoto, K. (2021) Reproductive Success in Fish Stocks Can Be Reproduced by Environmental Factors Alone. Open Access Library Journal, 8: e7636. https://doi.org/10.4236/oalib.1107636) unfortunately contains some mistakes. The author wishes to correct the errors in the following version:

Marine Biology 

The development of middle school campus basketball has always been an important issue that experts are studying. There are many scholars in our country who have published different views and articles in this field from different angles. How to improve Zhanjiang middle school campus basketball is the purpose of this paper. This paper investigates several primary and secondary schools in Zhanjiang City by means of literature, field investigation and expert interview. Summarizes the Zhanjiang middl...

Physical Education 

The purpose of this article is to make an objective and comprehensive evaluation of Shang Yang’s reform. Shang Yang’s reform mainly included the supremacy of the monarchy, the rule of law, and the harsh criminal law. By comparing the positive and negative effects of Shangyang Reform, the following conclusions can be drawn: Reform is a good way to solve social problems. Each reform is proposed for the current social problems. They are forward-looking, but they can not accurately predict future ch...

Law  History 

Agriculture is a type of economic activity, livelihood, and provider of environmental services, contributing to the development process. It can participate, in concert with other sectors, in realizing faster growth, poverty reduction, and environmental sustainability. Agriculture has a special ability to reduce poverty. The objectives of the study are to identify agricultural development in Ghana and identify challenges of modern agricultural development in Ghana. Data from the field were collec...

Environmental Economics  Economic System  Business Analysis 

Background: Jatropha curcas belongs to the Euphorbiaceae family and is found in the coastal areas of tropics. The leaves, fruits and seeds of the plant are used for various ailments. Not only there are few reported cases of its poisoning in the paediatric age group but also rarely reported to cause neurological manifestation even in adult population. We present a case of a 5 years old that presented with severe acute neurological manifestation soon after ingestion of the seeds of Jatro...

Neurology  Pediatrics  Internal Medicine 

Linear Programming optimization is used in this paper to find minimum cost and quantity of food items for selection of proper diet containing sufficient nutrition elements over a week for three different age groups. For this purpose, first a linear programming optimization model is selected and then three data files defining the various food items with their corresponding cost and nutrition elements appropriate to three distinct age groups are constructed. Finally, the model files and the data f...

Technology