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Research Guides

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FAQ

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Are Government Documents peer-reviewed or scholarly sources?
The government produces a large amount of publications including congressional, agency and administrative reports from hundreds of departments and agencies. Most of these publications are considered to be authoritative and credible. However, while some government reports may undergo internal review processes, not all of these documents are considered peer-reviewed or scholarly. For more information on how to find peer-reviewed articles, explore the librarys Searching for Peer-Reviewed Articles Research Guide (https://guides.lib.lsu.edu/c.php?g=1282644&p=9413843) . Answered by: Kendall Caple
What are the fines for lost library books?
LSU Library books are considered lost if they are not returned or renewed within 40 days after the due date. Lost book charges consist of a $70 item replacement fee, a non-refundable service charge of $30.00, and any accrued overdue fines (usually $20 max). If you would like to report a book lost, please do so using the Lost Materials Form below. If you report a book lost before the due date, no overdue fines will accrue, and the service charge will be reduced to $25. You will still be responsible for the cost of item replacement. Please click to the Lost or Damaged Items link below for more information. LSU Libraries | Lost or Damaged Items
LSU Libraries | Lost Materials Form Answered by: Access Services Staff
I'm unable to create an account or log in to Scholarly Repository
In order to create an account in the LSU Scholarly Repository, users can create an account by visiting this link (https://repository.lsu.edu/cgi/useradd.cgi?context=https://repository.l…) . If users have forgotten their password, users can reset their password by visiting this link (https://repository.lsu.edu/cgi/reset_password.cgi?email=&context=https%…) . Once students have graduated, we recommend that they update their LSU Scholarly Repository account with a non-LSU e-mail address as their LSU e-mail address will eventually be deactivated. In order to update an e-mail address, users should login to their account at LSU Scholarly Repository Login (https://repository.lsu.edu/cgi/login.cgi?return_to=https%3A%2F%2Freposi…) and click Edit Profile under Account Settings . Once here, users should be able to update their e-mail addresses. If, by chance, former students no longer have access to their e-mail and have forgotten their password, they'll need to contact bepress support at support@bepress.com (mailto:support@bepress.com) . ***Questions regarding the submission of theses or dissertations should be directed to the Graduate School via e-mail at gradsvcs@lsu.edu (mailto:gradsvcs@lsu.edu ) or telephone at (225) 578-2311. Answered by: S. Trent Dunkin
Can members of the public, visiting scholars, independent researchers, and other non-LSU affiliates borrow materials from LSU Library?
Some individuals not affiliated with LSU may receive limited borrowing privileges. These individuals include:
- Louisiana residents (age 18 or older) with valid photo ID
- Out-of-state residents who teach in Louisiana K-12 schools (must be requested by principal or superintendent)
- Out-of-state residents who attend LALINC institutions (must have LALINC Card)
- Out-of-state residents working for Louisiana state agencies
- OCLC Reciprocal Faculty Borrowing Program participants
- Visiting scholars from out-of-state institutions (must be requested by an LSU dean or department head)
- Graduate students from institutions located in other states or countries (must be requested by thesis advisor, department head, or a librarian at their home institution)
- Adjunct LSU Faculty with gratis appointments These privileges do not include offsite access to databases. Public Patrons may borrow up to 10 books for a period of 28 days. Audio-Visual items circulate for 7 days. All Special Borrowers are subject to all rules and regulations including all library fees. Please apply for a public patron account at the checkout desk in room 241 of LSU Library. Please direct any additional questions or concerns to libcirc@lsu.edu (mailto:libcirc@lsu.edu) . LSU Libraries | Borrowing Policies Answered by: Access Services Staff
How do I find U.S. Census data?
Visit census.gov (http://census.gov/) to browse quality information current and historical facts and figures about Americas people, places, and economy. An additional tool offered by the U.S. Census Bureau, the data.census.gov (https://data.census.gov/) is a platform designed to help users access demographic and economic data digitally. The Census Academy (https://www.census.gov/data/academy.html) has many short tutorials for searching this website. For more information, consult the Census Bureau's FAQ (https://ask.census.gov/) , or schedule an appointment with an LSU Libraries Librarian here (https://lsu.libcal.com/appointments/caple) . The census on microfilm LSU owns is limited. The only states in this collection include: Alabama, Arkansas, District of Columbia, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, Missouri, Pennsylvania, South Carolina, Tennessee, Texas, Virginia (and scattered census material for West Virginia). Information on other states may be located at the National Archives (http://www.archives.gov/research/start/index.html) in Washington D.C., the regional branches (http://www.archives.gov/locations/index.html) of the National Archives, as well as the Bluebonnet Regional Branch of the East Baton Rouge Parish Library (https://www.ebrpl.com/) . The collection of census material at LSU Libraries includes population schedules, agricultural census data, lists of manufactures, slave schedules, passenger lists for the port of New Orleans covering 1853-1899, social statistics, and scattered information concerning Defective, Dependent and Delinquent Classes. Other material that may be helpful for researching archives for genealogy information include Records of the Diocese of Louisiana and the "Floridas", New Orleans City Directories for years 1805-1945, New Orleans Christian Advocate concerning Marriage and Death Notices, Military Academy Letters, and Indian Affairs, just to name a few. If you would like to access any of these materials, contact libgovdocs@lsu.edu . Answered by: Kendall Caple
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Database Listing

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Confidential Print: Latin America, 1833-1969
The Confidential Print series, issued by the British Government between c. 1820 and 1970, is a fundamental building block for political, social and economic research. This collection consists of the Confidential Print for Central and South America and the French- and Spanish-speaking Caribbean. Topics covered include slavery and the slave trade, immigration, relations with indigenous peoples, wars and territorial disputes, the fall of the Brazilian monarchy, British business and financial interests, industrial development, the building of the Panama Canal, and the rise to power of populist rulers such as Perón in Argentina and Vargas in Brazil.
Confidential Print: Middle East, 1839-1969
The Confidential Print series, issued by the British Government between c. 1820 and 1970, is a fundamental building block for political, social and economic research.This collection consists of the Confidential Print for the countries of the Levant and the Arabian peninsula, Iran, Turkey, Egypt and Sudan. Beginning with the Egyptian reforms of Muhammad Ali Pasha in the 1830s, the documents trace the events of the following 150 years, including the Middle East Conference of 1921, the mandates for Palestine and Mesopotamia, the partition of Palestine, the 1956 Suez Crisis and post-Suez Western foreign policy, and the Arab-Israeli conflict.
Confidential Print: North America, 1824-1961
The Confidential Print series, issued by the British Government between c. 1820 and 1970, is a fundamental building block for political, social and economic research. This collection consists of the Confidential Print for the United States, Canada and the English-speaking Caribbean, with some coverage of Central and South America, and covers such topics as slavery, Prohibition, the First and Second World Wars, racial segregation, territorial disputes, the League of Nations, McCarthyism and the nuclear bomb. The bulk of the material covers the late nineteenth century and the first half of the twentieth century.
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Staff

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Discovery

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Does soak time influence the effect of artificial light on catch efficiency in snow crab (Chionoecetes opilio) pot fishery?
In the Barents Sea commercial snow crab (Chionoecetes opilio) fishery, an increase in catch efficiency of the conical pots is important for the profitability of the industry. Light emitting diodes (LEDs) have previously been tested for increasing catch efficiency of the snow crab pots. These earlier experiments have shown varying results ranging from large increase in snow crab catches to no significant effect. These experiments have used different pot soaking times; however, the soaking time might affect the impact of LEDs on catch efficiency. In commercial snow crab fishery, the pot soak time is varying which has not been considered in earlier experiments testing the effect of LEDs. Therefore, this study examined whether pot soaking time can explain the observed differences in relative catch efficiency of snow crab pots with and without LEDs with soak times ranging from 2 to 14 days in the Barents Sea snow crab fishery. For target sizes of snow crab (≥95 mm carapace width), results indicated an increase in catch efficiency between 10 and 30% for pots with LEDs with exception of one experiment using six days soak time. However, experimental results were subjected to large uncertainties and, except from one experiment with five days soak time, the estimated increases were nonsignificant. Furthermore, the pot soak time was not found to impact the effect of white LEDs on capture efficiency.
Gillnet colour affects catch efficiency in pearlspot (Etroplus suratensis) tropical estuary fishery
Gillnets are one of the most commonly used fishing gears in both marine and inland waters. Different colour filament nettings are often used in gillnets. However, the effect of gillnet colour on catch efficiency is unclear for most fisheries. Therefore, in this study we investigated the effect of gillnet colour on the catch efficiency in pearlspot (Etroplus suratensis) fishery in Vembanad lake, India. Gillnet colours tested were transparent, green and blue. Results showed that in this fishery, the catch efficiency of gillnets of the three colours tested differed significantly. The highest catch efficiency of pearlspot was shown by green gillnets compared to transparent or blue netting. Specifically, green gillnets on average were estimated to be 74% more efficient compared to transparent gillnets. For the green compared to the blue gillnets, the catch efficiency was estimated to be higher by 81%. These results demonstrate that gillnet colour can be an important factor significantly affecting the catch efficiency of this fishing gear.
Regulatory element in fibrin triggers tension-activated transition from catch to slip bonds
Fibrin formation and mechanical stability are essential in thrombosis and hemostasis. To reveal how mechanical load impacts fibrin, we carried out optical trap-based single-molecule forced unbinding experiments. The strength of noncovalent A:a knob-hole bond stabilizing fibrin polymers first increases with tensile force (catch bonds) and then decreases with force when the force exceeds a critical value (slip bonds). To provide the structural basis of catch–slip-bond behavior, we analyzed crystal structures and performed molecular modeling of A:a knob-hole complex. The movable flap (residues γ 295 to γ 305) containing the weak calcium-binding site γ 2 serves as a tension sensor. Flap dissociation from the B domain in the γ -nodule and translocation to knob ‘A’ triggers hole ‘a’ closure, resulting in the increase of binding affinity and prolonged bond lifetimes. The discovery of biphasic kinetics of knob-hole bond rupture is quantitatively explained by using a theory, formulated in terms of structural transitions in the binding pocket between the low-affinity (slip) and high-affinity (catch) states. We provide a general framework to understand the mechanical response of protein pairs capable of tension-induced remodeling of their association interface. Strengthening of the A:a knob-hole bonds at 30- to 40-pN forces might favor formation of nascent fibrin clots subject to hydrodynamic shear in vivo.
On Some Subclasses of Oriented Catch Digraphs
As an analog of intersection graphs among digraphs, catch digraphs were introduced by Hiroshi Maehara in 1984. Later on, Prisner focused his research on interval catch digraphs, which he identified as diasteroidal triple free digraphs. It has been used to solve a variety of real-world challenges, such as networking, telecommunication operations, traffic control, and location problems. Oriented catch digraphs are those catch digraphs that have exactly one edge direction attached to each edge of the corresponding underlying graph. In this article, we consider two important subclasses of oriented catch digraphs, namely, oriented interval catch digraphs and oriented circular-arc catch digraphs. First, we characterize those oriented interval catch digraphs whose underlying graphs are trees in terms of forbidden subdigraphs. Next, we provide a characterization of connected proper oriented interval catch digraphs whose underlying graphs are chordal, by determining the complete list of forbidden induced subdigraphs. Another interesting result is characterizing oriented circular-arc catch digraphs, which are tournaments.
A new method for predicting wind-driven rain catch ratios on building facades in urban residential areas using machine learning models
The distribution of wind-driven rain on building facades significantly affects their thermal performance and durability. Accurately and efficiently predicting the wind-driven rain catch ratio on wall surfaces is crucial for building performance evaluation. This study proposes a novel computational approach to rapidly predict the wind-driven rain catch ratio on urban building facades. A predictive model was developed using extensive numerical simulations combined with machine learning algorithms. Specifically, the model replaces traditional numerical simulations by learning the influence of wind field characteristics and building geometry on raindrop catch ratios across different sizes. The research results indicate that the machine learning models can effectively substitute conventional simulation methods for wind-driven rain predictions. Notably, the Artificial Neural Network model achieved a prediction accuracy comparable to numerical simulations (RMSE: 0.009, MAE: 0.006) while being over 300 times faster. The inlet wind speed at roof height emerged as the most influential feature, and the model exhibited strong generalization performance across varying wind directions. This method is simple, efficient, and well-suited to support wind-driven rain analysis, experimental measurements, and urban energy consumption studies in residential building contexts.
Effect of studying abroad on catch-up vaccination in young adults: A study using the Japan Pretravel Consultation Registry
Purpose To investigate the effect of studying abroad on catch-up vaccination coverage for measles, rubella, mumps, varicella, and tetanus during the pretravel consultation among young adult travelers.Methods This retrospective cohort study analyzed data from the Japan Pretravel Consultation Registry (J-PRECOR) on individuals aged 18–21 years with childhood vaccination records. Propensity score weighting was used to estimate the average treatment effect on the proportion of participants receiving catch-up vaccination.Results Among 1091 eligible participants, the catch-up vaccination need was highest for mumps (65.7 %) and varicella (49.0 %) and lowest for measles (9.9 %) and rubella (14.0 %). In the unadjusted analysis, the catch-up vaccination rate was 70.6 % for tetanus, 50.9 % for measles, 47.7 % for rubella, 40.0 % for mumps, and 23.9 % for varicella. In the weighted analysis, the study-abroad group had significantly higher catch-up vaccination rates for measles (54.6 % vs. 29.8 %, P = 0.039), rubella (53.0 % vs. 22.1 %, P 
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