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Nov 14, 2017Open    Access

The Economics of a College Education

Allan Ornstein
Given the cost of obtaining a college education in the US, resulting in the average debt for undergraduate students ($26,000) and for masters’ students ($50,000), the question arises whether college (tuition and room and board) is worth the cost. Not all college students find jobs. There’s a growing number who are under employed or unemployed. Those that do find jobs often do so at reduced salaries in the m
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1103812


Nov 14, 2017Open    Access

Correcting Some Misinterpreted Concepts and Phenomena in Classical and Relativistic Mechanics (Foundational Concepts and Related Phenomena, Generally)

Sheima’a Thiyab Attiyah Al-Uboodi
The topic undertaken in this paper (and probably in some other papers if required for possible future debates) is multi-branched and with various interrelations. It is concerned with the identification and correction of miscellaneous misinterpreted concepts, and with what may appear as some embezzling phenomena, in classical and relativistic mechanics. These include revising the concepts of the indepen
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1103234


Nov 14, 2017Open    Access

The Development of Lesson Plan of Inquiry Contextual Learning to Improve the Higher Order Thinking Skill Students at Microbiology

Hasruddin, Fauziyah Harahap, Mahmud
This research aims to know the effectiveness of the implementation lesson plan inquiry contextual learning to improve higher order thinking skill of students in the lecture for microbiology. The lesson plan that was developed in the form of inquiry contextual learning model. Research and development includes three stages of research: study of the introduction, development of microbiology lesso
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1103943


Nov 13, 2017Open    Access

Escherichia coli Resistance to Ciprofloxacin in Acute Uncomplicated Pyelonephritis

Emad Abu Sitta, Nour Aljariri Alhesan, Babikir Kheiri, Sunil Badami, Farah Elounais, Omar Assassa, Maneesh Gaddam, Carlos Rios-Bedoya
Background: Severe acute uncomplicated pyelonephritis is an infection of the kidneys that usually have an ascending route and occur in presumably healthy urinary tract. The most common pathogen involved is E. coli. The Infectious Diseases Society of America (IDSA) has issued an updated guideline in 2010 suggesting IV quinolones to be considered in the initial em
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1104043


Nov 13, 2017Open    Access

The Characterization of Steel Slag by Alkali Activation

Ikmal Hakem Aziz, Khairunnisa Zulkifly, Konstantinos Sakkas, Dimitrios Panias, Georgia Maria Tsaousi, Mohd Mustafa Abdullah Al Bakri, Heah Cheng Yong
This paper presents a characterization analysis of alkali-activated steel slag. The effect ratio of steel slag and ferronickel slag which are the precursor materials on the compressive strength of the alkali-activated materials was investigated. The combination of sodium hydroxide solution of 15 moles concentration and sodium silicate was used as an alkaline activator. The ratio between steel slag and alkaline liquid was fixed at
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1103816


Nov 10, 2017Open    Access

Impact of Different Methods of Soil Sampling and DNA Extraction on the Identification of Soil Bacterial Abundance under Elevated CO2

Fengxia Li, Saman Bowatte, Paul C. D. Newton, Dongwen Luo
Elevated atmospheric CO2 (eCO2) is anticipated to have marked effects on soil microbial populations. While there is experimental evidence to support this view there are also studies where changes in microbial populations, such as the abundance of bacteria, are suggested but cannot be statistically established. We conducted this study
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1103527


Nov 10, 2017Open    Access

Audio Noise Reduction Using Low Pass Filters

Ali Osman Mohammed Salih
The study aimed to filter and remove noise from audio, and in this study researcher followed the descriptive analytical method. The study sample consisted of an audio file and has been save Audio of on a formula (WAV), and the study used matlab 7.10.0 to read sound and design low pass filter, then insert the audio signal with the noise signal into the filter and output a signal audio without noise. The research
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1103709


Nov 09, 2017Open    Access

Effectiveness of Facebook in English Language Learning: A Case Study

Qais Faryadi
The prime objective of this research was to investigate whether Facebook helped undergraduate students of Universiti Sains Islam Malaysia (USIM) improve their English language proficiency, critical thinking, comprehension skills, and motivation. A triangulation method (quantitative, qualitative, and descriptive) was employed in the investigation. A total of 900 undergraduate students participated. The 900 participants were first y
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1104017


Nov 09, 2017Open    Access

Investigation of Contributing Factors to Scombroid Fish Poisoning among Dar es Salaam City Residents in Tanzania

Ngwengwe Bulula, Veronica Mugoyela, Eliangiringa Kaale
Scombroid fish poisoning is a mild to moderate form of food poisoning caused by eating spoiled or bacterial contaminated fish after capture or during subsequent handling and storage. Its symptoms are similar to those of fish allergy though it gives negative results to allergy tests. Because of that, most clinicians misdiagnose scombroid or histamine fish poisoning, and erroneously advise their
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1103992


Nov 02, 2017Open    Access

Flora Endemic Rare and Bioclimate of Palestine

Jehad M. H. Ighbareyeh, A. Cano-Ortiz, E. Cano Carmona, Asma A. A. Suliemieh, Mohammed M. H. Ighbareyeh
Palestine was subject to classification study through the period from February to May 2017. This area has a characteristic of flora and biodiversity and belongs to dry, arid, semi-arid, sub-humid and humid climates, and locates in Mediterranean region. We took 400 samples of different plant species from Hebron (Idna, Althahreiyeh, Yatta villages and Hebron city); Jenin (Jenin city, Al-Yamon, Maysalon and Yabod); Jericho
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Open Access Library J.   Vol.4, 2017
Doi:10.4236/oalib.1103977


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