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Articles 121 - 134 of 134

Full-Text Articles in Architecture

Agglomeration, Enterprise Size, And Productivity, Edward J. Feser Jan 2001

Agglomeration, Enterprise Size, And Productivity, Edward J. Feser

Edward J Feser

Much research on agglomeration economies, and particularly recent work that builds on Marshall's concept of the industrial district, postulates that benefits derived from proximity between businesses are strongest for small enterprises. This paper investigates this hypothesis, examining the degree to which local business externalities differ in magnitude and type among large and small enterprises in two U.S. manufacturing sectors. A four factor micro-level production function with oft-cited sources of agglomeration economies (local input supply, labor pools, knowledge spillovers) modeled as technology parameters and dummy variables representing varying definitions of plant size (and type, i.e., single or multi establishment unit) are …


Effect Of Carbopol And Polyvinylpyrrolidone On The Mechanical, Rheological, And Release Properties Of Bioadhesive Polyethylene Glycol Gels, Philadelphia University May 2000

Effect Of Carbopol And Polyvinylpyrrolidone On The Mechanical, Rheological, And Release Properties Of Bioadhesive Polyethylene Glycol Gels, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


On The Ellison–Glaeser Geographic Concentration Index, Edward J. Feser Jan 2000

On The Ellison–Glaeser Geographic Concentration Index, Edward J. Feser

Edward J Feser

I use confidential employment data to investigate the empirical properties of a recent industry geographic concentration index (and related index of industry co-agglomeration) proposed by Ellison and Glaeser (1997). The results show that Ellison and Glaeser’s theoretical finding that their concentration measures are robust to differences in the level of spatial aggregation in the underlying employment data does not generally hold in practice. This implies that sensitivity testing for alternative spatial units should accompany any analysis with the concentration measures.


Unified Matrix Processor Design For Fct-Iv And Fst-Iv Hartley Based Transforms, Philadelphia University Jan 2000

Unified Matrix Processor Design For Fct-Iv And Fst-Iv Hartley Based Transforms, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


Revegetating Desert Plant Communities, David A. Bainbridge Jan 1999

Revegetating Desert Plant Communities, David A. Bainbridge

David A Bainbridge

Desert revegetation is possible but not easy. Careful attention to plant production (root:shoot), site prep, planting, irrigation and aftercare can lead to good survival even under extreme desert conditions. Cost per survivor is a critical consideration.


Soil Pitting For Revegetation, David A. Bainbridge Jan 1999

Soil Pitting For Revegetation, David A. Bainbridge

David A Bainbridge

Soil pitting provides many benefits in ecological restoration of degraded lands. The pits capture rainwater, trap seeds and soil symbionts and protect seedlings from windblast.


Old And New Theories Of Industry Clusters, Edward J. Feser Jan 1998

Old And New Theories Of Industry Clusters, Edward J. Feser

Edward J Feser

The paper reviews the broad range of theories and ideas that constitute, often implicitly, the logic behind strategic cluster policies. The title of the paper notwithstanding, there is no theory of industry clusters, per se. Even Porter’s (1990) seminal contribution is more a theory of firm competitiveness than clusters. There is, instead, a variety of older and newer theories of 1) the interrelationships between economic actors that clusters describe, and 2) the implications of such interrelationships for economic growth and development. Industry clusters have proven a useful way of characterizing webs of relationships between and among firms and other institutions. …


Archiv Der Pharmazie, Philadelphia University Jan 1998

Archiv Der Pharmazie, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


Simulation And Fpga Implementation Of A Simple Computer, Philadelphia University Jan 1998

Simulation And Fpga Implementation Of A Simple Computer, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


Some Syntactic, Semantic And Prosodic Characteristics In British English Conversation, Philadelphia University Jan 1996

Some Syntactic, Semantic And Prosodic Characteristics In British English Conversation, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


Characterization Of Sh Groups In Porin Of Bovine Heart Mitochondria. Porin Cysteines Are Localized In The Channel Walls., Philadelphia University Jan 1991

Characterization Of Sh Groups In Porin Of Bovine Heart Mitochondria. Porin Cysteines Are Localized In The Channel Walls., Philadelphia University

Philadelphia University, Jordan

No abstract provided.


Positive Residues Involved In The Voltage-Gating Of The Mitochondrial Porin-Channel Are Localized In The External Moiety Of The Pore, Philadelphia University Jan 1990

Positive Residues Involved In The Voltage-Gating Of The Mitochondrial Porin-Channel Are Localized In The External Moiety Of The Pore, Philadelphia University

Philadelphia University, Jordan

No abstract provided.


Breadbox Water Heater Designs, David A. Bainbridge Jan 1978

Breadbox Water Heater Designs, David A. Bainbridge

David A Bainbridge

Integral solar water heaters (batch, breadbox, ICS) provide the most economical and reliable means of heating water. Simple designs can perform well and provide service for decades. Basic design principles include box insulation, orientation and control of heat loss.


Planning For Energy Conservation, David A. Bainbridge Jan 1976

Planning For Energy Conservation, David A. Bainbridge

David A Bainbridge

City planning can provide multiple benefits by considering energy conservation, solar orientation and local resource harvesting. Narrower streets reduce construction costs, reduce urban heat island impacts and are safer. Above ground drainage reduces costs and returns rainwater to groundwater.