Results 161 to 170 of about 2,802,047 (309)

Measuring Efficiency of German Bus Public Transport [PDF]

This paper quantifies the technical efficiency of German bus companies and elaborates on the main factors influencing their performance. Efficiency is measured with a stochastic production frontier.
Karl-Hans Hartwig, Raimund Scheffler, Robert Malina   +2 more
core  

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

FEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer, Angelique Kragl, Katrin Ziems, Juliane Glaubitz, Sophie Grammbauer, Susanne Hildebrandt, Mladen V. Tzvetkov, Gabriele Jedlitschky   +7 more
wiley   +1 more source

Technical Efficiency of Small-Holder Cocoyam Farmers in Anambra State, Nigeria: Implications for Agricultural Extension Policy [PDF]

This study employed the Cobb-Douglas stochastic frontier production function to measure the level of technical efficiency in small-holder cocoyam production in Anambra state, Nigeria. A multi-stage random sampling technique was used to select 120 cocoyam
Agwu, A.E, Okoye, B.C, Onyenweaku, C.E
core   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

FEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner, Hainan Zhu, Carol Christine Bosholm, Heuy‐Ching Wang, Tracy Criswell, Anthony Atala, Jian‐Xing Ma, Yuanyuan Zhang   +7 more
wiley   +1 more source

Evaluation of determinants affecting technical efficiency of dairy farms. [PDF]

Sci Rep
Dubey A, Santra AK, Singh M, Bhonsle D, Khune VN, Dinani OP, Pathak R, Singh N, Yadav A.   +8 more
europepmc   +1 more source

The technical efficiency of large-scale agricultural investment in Northwest Ethiopia: A stochastic frontier approach. [PDF]

Heliyon, 2023
Motbaynor Workneh W, Kumar R.
europepmc   +1 more source

The Distribution and Heterogeneity of Technical Efficiency within Industries: An Empirical Assessment [PDF]

This paper analyzes the distribution of technical efficiency within manufacturing industries. Using a representative sample of 35,000 firms in 255 industries of the German cost structure census, technical efficiencies are estimated by applying a ...
Andreas Stephan, Michael Fritsch
core  

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Effects of biosecurity strategies on technical efficiency of egg production in Bono Region of Ghana. [PDF]

Poult Sci
Ayertey D, Asem FE, Okyere CY, Enahoro D.   +3 more
europepmc   +1 more source

MARKET-BASED LAND REFORM AND FARM EFFICIENCY IN COLOMBIA: A DEA APPROACH [PDF]

This paper uses Data Envelopment Analysis to measure scale and technical efficiencies of 925 farms in rural Colombia and a Tobit model to identify the effects of land market characteristics on efficiency.
Gonzalez, Maria A., Lopez, Rigoberto A.
core   +1 more source