Isolation and characterization of engine oil degrading indigenous microrganisms in Kwazulu-Natal, South Africa

As the usage of petroleum hydrocarbon products increases, soil contamination with diesel and engine oils is becoming one of the major environmental problems. To investigate the countermeasure toremediate soils contaminated with oils, bioremediation provide an effective and efficient strategy to speed up the clean-up processes. Three bacterial isolates capable of utilizing used engine-oil as acarbon source were isolated from contaminated soils using the enrichment technique. Three isolates were identified as Flavobacterium sp., Acinetobacterium calcoaceticum and Pseudomonas aeruginosabased on biochemical tests and 16S rRNA sequencing. The gavimetric analysis revealed that A. calcoaceticum and a consortium of the isolates were capable of utilizing 80 and 90% of used engine oil,respectively, under laboratory conditions at 30°C and 160 rpm with Bushnell-Haas media in a 4 week period. An increase in oil degradation is correlated to an increase in cell number indicating that thebacterial isolates were responsible for the oil degradation. All isolates were capable of degrading the nparaffin up to 80% in a 2 week period. The optimal temperatures at which biodegradation occurred at30–37°C. The preference of nitrogen sources and minimal salts were different for different bacterial isolates. The results obtained demonstrate the potential for oil bioremediation of these isolates in situand/or ex situ

Ilukirjandusliku proosastiili käsitlemise võimalusi gümnaasiumi kirjandusõpetuses

http://www.ester.ee/record=b4503113*es

Üleminekut lasteaiast kooli toetav projekt "Sõber kutsub kooli uudistama" tegevusuuring

https://www.ester.ee/record=b5252654*es

Kooliuusikute matemaatikateadmised ja nende seos edenemisega 1. klassis

http://tartu.ester.ee/record=b2655049~S10*es

ANALISIS PERMINTAAN DAGING SAPI DI KOTA BANDA ACEH

Mandri Risanti dengan judul skripsi "Analisis Permintaan Daging Sapi Di Kota Banda Aceh", di bawah bimbingan Bapak Dr. lr. Sofyan, M. Agric. Sc sebagai pembimbing utama dan Bapak Ir. Edy Marsudi, M.Si sebagai pembimbing kedua.Permasalahan dalam penelitian ini untuk mengetahui Apakah harga daging sapi lokal, harga daging sapi impor, harga ikan, harga daging ayam, jumlah tanggungan dan pendapatan keluarga berpengaruh terhadap permintaan daging sapi di Kota Banda Aceh dan Apakah harga daging sapi lokal, harga daging sapi impor, harga ikan, harga daging ayam, jumlah tanggungan dan pendapatan keluarga responsif terhadap permint aan daging sapi di Kota Banda Aceh.Tujuan dalam penelitian ini adalah untuk mengetahui pengaruh dan responsif harga daging sapi lokal, harga daging sapi impor, harga ikan, harga daging ayam, jumlah tanggungan dan pendapatan keluarga terhadap permintaan daging sapi di Kota Banda Aceh dan responsif harga daging sapi lokal, harga daging sapi impor,harga ikan, harga daging ayam, jumlah tanggungan, dan pendapatan keluarga terhadap permintaan daging sapi di Kota Banda Aceh. Adapun metode penelitian yang digunakan adalah survei dan metode penetuan lokasi peoelitian dilakukan secara phurposive sampling clan teknik pengambilan sampel penelitian ini adalab Simple Random Sampling. Pada penelitian ini menggunakan metode analisis fungi Cobb-Douglas yang tranfo rmasikan ke dalam bentuk linear sehingga diselasaikan dengan bentuk regresi berganda, sehingga dalam penyelesaiannya digunakan software SPSS.Hasil Penelitian menunjukkan bahwa harga daging sapi lokal, jumlah tanggungan dan pendapatan kepala keluarga berpengarub nyata terhadap permintaan daging sapi di Kota Banda Aceh. Sedangkan harga daging sapi impor, harga ikan dan harga daging ayam tidak mempunyai pengaruh terhadap permintaan daging sapi di Kota Banda Aceh. Hasil penelitian juga menunjukkan bahwa harga daging lokal, harga daging ayam clan pendapatan kepala keluarga responsif terhadap permintaan daging sapi di Kota Banda Aceh. Sedangkan harga daging sapi impor, harga ikan dan jumlah tanggungan tidak responsif terhadap permintaan daging sapi di Kota Banda Aceh.Saran yang dapat penulis berikan pada penelitian ini adalah dibutuh.kan peningkatan produksi daging sapi, sehingga harga daging sapi lebih terjangkau dan dapat meningkatkan permintaan daging sapi di Kota Banda Aceh dan peranan pemerintah Kota Banda Aceh dalam menanggulangj tingginya harga daging sapi di Kota Banda Aceh

A prospective study on functional outcome of uncemented total hip arthroplasty in patients with inflammatory arthropathies

Background: Although medical management has improved the outcome and may have reduced the need for surgery, total hip arthroplasty (THA) is often required to manage pain and restore function and mobility. The successful functional outcome of THA in patients with inflammatory arthropathies is essential in understanding the need for THA, and its benefits in those undergoing it. Objective of the study is to evaluate the functional outcome of total hip arthroplasty in patients suffering from inflammatory arthritis using Harris hip score (HHS) and to assess the post operative complication in these patients.Methods: In a prospective study conducted on patients with inflammatory arthritis treated with THA between a study period of January 2018 to January 2020. All the patients after assessing them clinically and radiologically were operated with uncemented THA through posterolateral approach. Functional outcomes of hip were evaluated using HHS at various intervals.Results: In this study, patients were followed up to 24 months. About 46.7% of patients were diagnosed with rheumatoid arthritis, 33.3% of patients were diagnosed with ankylosing spondylitis, 20% of patients were diagnosed with sero negative arthritis. 90% of patients had no limb length discrepancy, no other post-operative complications were noted. The final functional outcome of hip according to HHS were 13.3% of excellent, 56.7% good results and 30% of fair results.Conclusions: This study concludes that THA in patients with inflammatory arthritis with restricted activities of life had improved in short term follow up and ease of rehabilitation and return to function