scholarly journals Characterization of the density and body size of a Gammarus pulex (Crustacea: Amphipoda) population in subsurface sediments reflects the sampling technique used

Hydrobiologia ◽  
2016 ◽  
Vol 788 (1) ◽  
pp. 293-303 ◽  
Author(s):  
Rachel Stubbington ◽  
John-Paul Hogan ◽  
Paul J. Wood
Keyword(s):  
Body Size ◽  
Sampling Technique ◽  
Gammarus Pulex ◽  
Subsurface Sediments

scholarly journals MANAGERIAL CHALLENGES IN USING LEAN TECHNIQUES IN DESIGNING A COMPREHENSIVE CHARACTERIZATION OF ORGANIZATION LOGISTICS AND PHYSICAL DISTRIBUTION SYSTEM: A CASE OF DEPARTMENT OF FIELD SUPPORT (DFS), UNITED NATIONS

2017 ◽  
Vol 1 (2) ◽  
pp. 28
Author(s):  
Michael Boima Kemokai
Keyword(s):  
Supply Chain ◽  
United Nations ◽  
Performance Management ◽  
Distribution System ◽  
Sampling Technique ◽  
Primary Data ◽  
Large Field ◽  
Physical Distribution ◽  
Comprehensive Characterization

Purpose: The purpose of this study was to identify the managerial challenges in using lean techniques in designing a comprehensive characterization of the organization logistics and physical distribution system. The study further sought to determine the extent to which these challenges impact the logistics and physical distribution of goods and informed managerial practices.Methodology: The study employed a qualitative research design. The study targeted all the senior managers at Director Levels at the GSC and the RSC and all the senior operational staff from supply chain and service delivery pillars in three (03) large Field Missions. These field missions are namely United Nations Stabilization Mission in Congo (MONUSCO); United Nations Mission in South Sudan (UNMISS); and the United Nations Support Office for AMISOM (UNSOA). This study used purposive sampling technique. The researcher purposively sampled fifteen (15) personnel; with three (03) participants each from the GSC, RSC, and three (03) participants each from the three (03)  Field Mission. Primary data was obtained from the original sources using questionnaires and interview.Findings: The results revealed that DFS did face various challenges in the implementation of lean strategies and that the operational difficulties experienced within its operations across field missions resulted in reduced customer satisfaction, increased supplier lead time and increased operational costs. The respondents indicated that they experienced a lack of understanding of the complexity of supply chain at the senior leadership level whereby most initiatives are tainted with personal agenda as a consequent the biggest hurdle to overcome is gaining enthusiasm and trust of the staff. They also indicated that there is a high risk of asset waste and loss due to assets remaining in stock for over one year without use. Further, they indicated that there are weaknesses in the management of construction or “self-constructed” projects; and weaknesses in the restructuring of the department of peacekeeping operations.Unique contribution to theory, practice and policy: The study recommends that     DFS should foster a continuous performance improvement mindset among staffs through planning, doing, checking and taking corrective actions on a balanced scorecard that integrates and aligns staff motivation and interest to the objectives of the organization. Also, objective and fair work plan and performance management are an ingredient to foster continuous improvement

Investigation of Fiber Optic Sensor for Monitoring of Ammonia

2008 ◽  
Author(s):  
Sistla S. Shastry ◽  
Abdeq M. Abdi ◽  
A. G. Agwu Nnanna
Keyword(s):  
Fiber Optics ◽  
Fiber Optic ◽  
Current Trend ◽  
Water Security ◽  
Sampling Technique ◽  
Porous Polymer ◽  
Fiber Optic Sensor ◽  
Chemical Contaminants ◽  
Optic Sensor

Detection and characterization of chemical contaminants in water network is paramount for water quality and water security. The current trend of monitoring the presence of contaminants is the batch sampling technique, where sample of water is collected and analyzed in the laboratory. While this technique is accurate, it fails to provide immediate information. In this work, the authors investigate the effectiveness of utilizing a fiber optics based sensor for detecting ammonia in water. In order for the system to sense ammonia, a small portion of the cladding of the fiber optic cable is stripped and replaced by a porous polymer material. A novel procedure of etching the glass cladding is reported. The modified cladding when interacts with ammonia causes a change in intensity of the electromagnetic wave flowing through the cable. The change in intensity caused by the modified cladding is studied parametrically which will help in forming a correlation between concentration of ammonia and absorbance.

scholarly journals First Isolation and Genetic Characterization of Bovine Herpesvirus 1 From Cattle in Pakistan

2021 ◽  
Vol 41 (01) ◽  
pp. 163-165
Author(s):  
Hammad Ur Rehman
Keyword(s):  
Nasal Swab ◽  
Genetic Characterization ◽  
Sampling Technique ◽  
Clear Understanding ◽  
Nested Polymerase Chain Reaction ◽  
Bovine Herpesvirus 1 ◽  
Blood Samples ◽  
Herpesvirus 1 ◽  
Subtype 1.1

The study was aimed to isolate BoHV-1 circulating in Lahore, Pakistan and its genetic characterization. For this purpose, blood samples were collected from different areas of district Lahore through convenient sampling technique. Out of 100 blood samples, 69 (69%, 95% CI: 58.86-77.66) samples have shown seropositivity against BoHV-1 through ELISA. For the isolation of BoHV-1, nasal swab samples were collected from 69 seropositive cattle and buffalo. Out of 69 nasal swab samples, only 6 samples have shown the visible cytopathic effect and confirmed through nested polymerase chain reaction by targeting glycoprotein B (gB). The phylogenetic analysis showed that local isolates showed similarity to subtype 1.1 of BoHV-1 and had 99-100% homology with Cooper strain. It was concluded that BoHV-1.1 is being circulating in Pakistan and further studies are needed which will help for clear understanding of virus characterization and development of effective local vaccine

scholarly journals Characterization of anaerobic chloroethene-dehalogenating activity in several subsurface sediments

1996 ◽  
Author(s):  
R.S. Skeen ◽  
J. Gao ◽  
B.S. Hooker ◽  
R.D. Quesenberry
Keyword(s):  
Subsurface Sediments

scholarly journals Microscopic Characterization of Fusarium sp. Associated with Yellow Disease of Pepper (Piper nigrum L.) in South Bangka Regency

2021 ◽  
Vol 9 (1) ◽  
pp. 1-9
Author(s):  
Ayu Lestari ◽  
Henri Henri ◽  
Eka Sari ◽  
Tri Wahyuni
Keyword(s):  
Microscopic Observation ◽  
Sampling Technique ◽  
Piper Nigrum ◽  
Pepper Plant ◽  
Colony Diameter ◽  
Colony Color ◽  
Macroscopic Observation ◽  
Fusarium Sp ◽  
Orange Color

Pepper production has decreased recently, especially due to yellow diseases of Fusarium sp. Thus, this research aimed to isolate and characterize Fusarium sp. from soil and root of healthy and diseased pepper plants. The sampling technique used was purposive sampling. Soil and root pepper samples were taken from lands in Payung and Ranggung Village, Payung District, South Bangka Regency. There were 3 varieties of pepper plant used, including Petaling 1, Nyelungkup, and Merapin Daun Kecil. The characterization of Fusarium sp. isolate included macroscopic and microscopic observation. Macroscopic observation included colony color, colony base color, and growth rate/colony diameter size (cm), while microscopic observation included hyphae structure, and the shape and size of microconidia, macroconidia, chlamydospore, and conidiophore. The research found 66 isolates of Fusarium genus based on the colony color. Most of the isolates were white or purple and red. Colony color of Fusarium sp. showed white color, which then turned to orange color. All isolates showed septate hyphae. Isolates with macroconidia 3-4 septate and micronidia 0-1 septate showed the character of Fusarium oxysporum, while isolates with macroconidia 3-5 septate and microconidia 0-2 septate showed the character of Fusarium solani.

scholarly journals Pemanfaatan Deleterious rhizobacteria Untuk Mengendalikan Gulma Utama Tanaman Padi di Kabupaten Jember

2019 ◽  
Vol 2 (2) ◽  
pp. 40
Author(s):  
Yogi Ardhi Cahyadi ◽  
Saifuddin Hasjim
Keyword(s):  
Biological Control ◽  
Plant Pathogens ◽  
Plant Protection ◽  
Sampling Technique ◽  
Spherical Shape ◽  
Edge Type ◽  
Randomized Sampling ◽  
Rice Plants ◽  
Deleterious Rhizobacteria

The purpose of the study was to determine the characteristics of plant pathogens from Deleterious rhizobacteria (DRB) that have the potential as biological control agents in the main weeds of rice plants. This research was conducted in April-August 2019 at the Plant Protection Laboratory, Faculty of Agriculture, University of Jember. Rhizobacteria sampling was taken from rice fields in Mayang District. Weed sampling technique is done by purposive randomized sampling. The collections of pathogen-infected weeds are then isolated using laminar airflow and identified through several test stages. DRB exploration results obtained by two microorganisms that can be used as biological control to control the main weeds of rice plants from the Pseudomonas group, they are P. syringae pv. glycinea (M1) and P. syringae pv. syringae (M2). Based on the identification of the two isolates morphologically that (M1) has a greenish-white color with a flat edge type. Whereas the isolate code (M2) has a yellowish murky white color with a rather irregular jagged edge type. However, the two isolates have similarities in spherical shape. The physiological observations of both M1 and M2 isolate from the Catalase test, fluorescent pigments produce gram-positive (+) while gram tests produce gram-negative (-). The conclusion of this research is the characterization of P. syringae pv. glycinea (M1) and P. syringae pv. syringae (M2) both morphologically and physiologically.

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