cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17632/9mh4dg4rfn.3
title: Data on departure reasons in US CEO turnover over 1992-2019

description: We present a dataset created from merged secondary sources of ExecuComp and CompuStat and then augmented with manual data collection through searches of news stories related to CEO turnover. 
 
We start dataset construction with the ExecuComp executive-level data for the period from 1992 through 2020. These data are merged with the CompuStat dataset of financial variables. As the dataset is intended for research on CEO turnover, we exclude observations in which the CEO at the start of the fiscal year is not well-defined; these are cases when there were co-CEOs and cases when the CEO was shared across different firms. The data set also excludes firm/year combinations that involve a restructuring of the firm – spinoff, buyout, merger, or bankruptcy.  
 
We identify the CEO at the start of each year for each firm. This also helps identify the last year an individual served as CEO. In order to identify CEO turnover based on changes in the CEO from year to year, we require firm observations to extend over at least six contiguous years for the firm to remain in the sample.  Cases involving the last year the firm is in the sample are excluded. We also exclude from the dataset cases when there was an interim CEO who stayed in the position for less than 2 years. This results in a sample of 3,100 firms reflecting 41,773 firm/year combinations.  
 
For this sample, we examine news articles related to CEO turnover to confirm the reasons for each CEO departure case.  We use the ProQuest full-text news database and search for the company name, the executive name, and the departure year. We identify news articles mentioning the turnover case and then classify the explanation of each CEO departure case into one of five categories of turnover. These categories represent CEOs who resigned, were fired, retired, left due to illness or death, and those who left the position but stayed with the firm in a change of duties, respectively.

The published data file does not include proprietary data from ExecuComp and CompuStat such as executive names and firm financial data. These data fields may be merged with the current data file using the provided ExecuComp and CompuStat identifiers.
 
The dataset consists of a single table containing the following fields:
•	gvkey – unique identifier for the firms retrieved from CompuStat database
•	firmid – unique firm identifier to distinguish distinct contiguous time periods created by breaks in a firm’s presence in the dataset
•	coname – company name as listed in the CompuStat database
•	execid – unique identifier for the executives retrieved from ExecuComp database
•	year – fiscal year
•	reason – reason for the eventual departure of the CEO executive from the firm, this field is blank for executives who did not leave the firm during the sample period
•	ceo_departure – dummy variable that equals 1 if the executive left the firm in the fiscal year, and 0 otherwise
DOI: 10.17632/9mh4dg4rfn.4
title: Data on departure reasons in US CEO turnover over 1992-2019

description: We present a dataset created from merged secondary sources of ExecuComp and CompuStat and then augmented with manual data collection through searches of news stories related to CEO turnover. 
 
We start dataset construction with the ExecuComp executive-level data for the period from 1992 through 2020. These data are merged with the CompuStat dataset of financial variables. As the dataset is intended for research on CEO turnover, we exclude observations in which the CEO at the start of the fiscal year is not well-defined; these are cases when there were co-CEOs and cases when the CEO was shared across different firms. The data set also excludes firm/year combinations that involve a restructuring of the firm – spinoff, buyout, merger, or bankruptcy.  
 
We identify the CEO at the start of each year for each firm. This also helps identify the last year an individual served as CEO. In order to identify CEO turnover based on changes in the CEO from year to year, we require firm observations to extend over at least six contiguous years for the firm to remain in the sample.  Cases involving the last year the firm is in the sample are excluded. We also exclude from the dataset cases when there was an interim CEO who stayed in the position for less than 2 years. This results in a sample of 3,100 firms reflecting 41,773 firm/year combinations.  
 
For this sample, we examine news articles related to CEO turnover to confirm the reasons for each CEO departure case.  We use the ProQuest full-text news database and search for the company name, the executive name, and the departure year. We identify news articles mentioning the turnover case and then classify the explanation of each CEO departure case into one of five categories of turnover. These categories represent CEOs who resigned, were fired, retired, left due to illness or death, and those who left the position but stayed with the firm in a change of duties, respectively.

The published data file does not include proprietary data from ExecuComp and CompuStat such as executive names and firm financial data. These data fields may be merged with the current data file using the provided ExecuComp and CompuStat identifiers.
 
The dataset consists of a single table containing the following fields:
•	gvkey – unique identifier for the firms retrieved from CompuStat database
•	firmid – unique firm identifier to distinguish distinct contiguous time periods created by breaks in a firm’s presence in the dataset
•	coname – company name as listed in the CompuStat database
•	execid – unique identifier for the executives retrieved from ExecuComp database
•	year – fiscal year
•	reason – reason for the eventual departure of the CEO executive from the firm, this field is blank for executives who did not leave the firm during the sample period
•	ceo_departure – dummy variable that equals 1 if the executive left the firm in the fiscal year, and 0 otherwise
DOI: 10.17632/9mh4dg4rfn.1
title: Data on departure reasons in US CEO turnover over 1992-2020

description: We present a dataset created from merged secondary sources of ExecuComp and CompuStat and then augmented with manual data collection through searches of news stories related to CEO turnover. 
 
We start dataset construction with the ExecuComp executive-level data for the period from 1992 through 2020. These data are merged with the CompuStat dataset of financial variables. We clean and process the data to ensure that relevant financial information is available for the firms and executives in the dataset. As the dataset is intended for research on CEO turnover, we exclude observations in which the CEO at the start of the fiscal year is not well-defined; these are cases when there were co-CEOs and cases when the CEO was shared across different firms. The data set also excludes firm/year combinations that involve a restructuring of the firm – spinoff, buyout, merger, or bankruptcy.  
 
We identify the CEO at the start of each year for each firm. This also helps identify the last year an individual served as CEO. In order to identify CEO turnover based on changes in the CEO from year to year, we require firm observations to extend over at least six contiguous years for the firm to remain in the sample.  Cases involving the last year the firm is in the sample are excluded. We also exclude from the dataset cases when there was an interim CEO who stayed in the position for less than 2 years. This results in a sample of 3,100 firms reflecting 41,773 firm/year combinations.  
 
For this sample, we examine news articles related to CEO turnover to confirm the reasons for each CEO departure case.  We use the ProQuest full-text news database and search for the company name, the executive name, and the departure year. We identify news articles mentioning the turnover case and then classify the explanation of each CEO departure case into one of five categories of turnover. These categories represent CEOs who resigned, were fired, retired, left due to illness or death, and those who left the position but stayed with the firm in a change of duties, respectively.
 
The dataset consists of a single table containing the following fields:
•	gvkey – unique identifier for the firms retrieved from CompuStat database
•	firmid – unique firm identifier to distinguish distinct contiguous time periods created by breaks in a firm’s presence in the dataset
•	coname – company name as listed in the CompuStat database
•	execid – unique identifier for the executives retrieved from ExecuComp database
•	exec_fullname – full name of the executive as listed in the ExecuComp database
•	year – fiscal year
•	reason – reason for the eventual departure of the CEO executive from the firm, this field is blank for executives who did not leave the firm during the sample period
•	ceo_departure – dummy variable that equals 1 if the executive left the firm in the fiscal year, and 0 otherwise
DOI: 10.17632/td538k56fz.4
title: Uropygial gland size in 35 North American bird species

description: The uropygial gland and the oils it produces have been shown to serve important functions in many bird species including plumage maintenance and chemical communication. Previous species comparisons of uropygial gland size have only been conducted in South American and European birds and have found little to no phylogenetic signal. Here, we document uropygial gland measurements of 34 different passerines, 1 hybrid chickadee population, and 1 piciform in eastern Pennsylvania, most of which are reported for the first time. Uropygial gland size is positively related to overall body size, controlling for phylogenetic relatedness. We show a significant phylogenetic signal of relative uropygial gland size and many of the species with the largest gland sizes belong to the Paridae. Overall, females show larger relative uropygial gland sizes than males, but this is not true for every species sampled and is also dependent on season in some species. We found no effect of total eggshell surface area or nest location on relative uropygial gland size. Together our results provide the first documentation of uropygial gland sizes in many of these North American species and provide interesting insight into factors influencing relative gland size including sex, season, and species.
DOI: 10.17632/td538k56fz.1
title: Phylogenetic signature of uropygial gland size in a North American bird community

description: The uropygial gland and the oils secreted from it have been shown to serve important functions in many bird species including plumage maintenance and chemical communication. Previous species comparisons of uropygial gland size have only been conducted in South American and European communities and have found little to no phylogenetic signature. Here, we document uropygial gland measurements of 36 different species in eastern Pennsylvania, many of which are reported for the first time. Uropygial gland size is related to overall body size and shows a complex relationship with species, sex, and season. We also found a significant phylogenetic signature of relative uropygial gland size. Clades with larger than expected gland size for their body mass included the Paridae and Passerellidae, members of which have been shown to particularly rely on olfactory cues in a variety of ecological contexts. In contrast, we found that the Turdidae have smaller than expected gland sizes. Our results are consistent with previous species-specific studies of olfactory-based behaviors and we believe that the size of the uropygial gland could be a good indicator of the degree of reliance on olfaction in individual bird species.
DOI: 10.17632/td538k56fz.2
title: Phylogenetic signature of uropygial gland size in a North American bird community

description: The uropygial gland and the oils secreted from it have been shown to serve important functions in many bird species including plumage maintenance and chemical communication. Previous species comparisons of uropygial gland size have only been conducted in South American and European communities and have found little to no phylogenetic signature. Here, we document uropygial gland measurements of 35 different species and 1 hybrid chickadee population in eastern Pennsylvania, most of which are reported for the first time. Uropygial gland size is related to overall body size, controlling for phylogenetic relatedness, but not to sex or season. We demonstrate a significant phylogenetic signature of relative uropygial gland size. Clades with larger than expected gland size for their body mass included the Paridae and select species in the Passerellidae and Parulidae, which have been shown to particularly rely on olfactory cues in a variety of ecological contexts. In contrast, we found that the Turdidae have smaller than expected gland sizes, possibly reflective of other life history traits such as ground foraging and nesting. Our results are consistent with previous species-specific studies of olfactory-based behaviors and additional life history traits and we believe that the size of the uropygial gland could be a good indicator of the differential importance and use of the uropygial gland in bird species.
DOI: 10.17632/td538k56fz.3
title: Phylogenetic signal of uropygial gland size in North American passerines

description: The uropygial gland and the oils it produces have been shown to serve important functions in many bird species including plumage maintenance and chemical communication. Previous species comparisons of uropygial gland size have only been conducted in South American and European birds and have found little to no phylogenetic signal. Here, we document uropygial gland measurements of 34 different passerines, 1 hybrid chickadee population, and 1 piciform in eastern Pennsylvania, most of which are reported for the first time. Uropygial gland size is positively related to overall body size, controlling for phylogenetic relatedness. We show a significant phylogenetic signal of relative uropygial gland size and many of the species with the largest gland sizes belong to the Paridae. Overall, females show larger relative uropygial gland sizes than males, but this is not true for every species sampled and is also dependent on season in some species. We found no evidence of total eggshell surface area or nest location on relative uropygial gland size. Together our results provide the first documentation of uropygial gland sizes in many of these North American species and provide interesting insight into factors influencing relative gland size including sex, season, and species.
DOI: 10.17632/td538k56fz.5
title: Uropygial gland size increases isometrically with body size in 35 North American bird species

description: The uropygial gland and the oils it produces have been shown to serve important functions in many bird species including plumage maintenance and chemical communication. Previous species comparisons of uropygial gland size have only been conducted in South American and European birds and have found little to no phylogenetic signal. Here, we document uropygial gland measurements of 34 different passerines, 1 hybrid chickadee population, and 1 piciform in eastern Pennsylvania, most of which are reported for the first time. Uropygial gland size is positively related to overall body size, controlling for phylogenetic relatedness. We show a significant phylogenetic signal of relative uropygial gland size and many of the species with the largest gland sizes belong to the Paridae. Overall, females show nonsignificant but slight trend of larger relative uropygial gland sizes than males. This effect is stronger in some species than others and can also be seasonally dependent. We found no effect of total eggshell surface area or nest location on relative uropygial gland size. Together our results provide the first documentation of uropygial gland sizes in many of these North American species and provide interesting insight into factors influencing relative gland size including sex, season, and species.
DOI: 10.25549/impa-c123-48797
title: Scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]

description: Photo album of scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]. Appeared to have been taken by a missionary, it has 66 images of the daily life of chiefs, slaves, men, women, children, iron workers, hunters, witch doctors and the missionary himself. Each page including the back of the front cover and the front of the back cover has three photographs, all in black and white. All photographs have captions in ink. It appears from the captions that most of the photographs were taken in Malawi which was then known Nysaland. It can be implied from the presence of a photograph of the grave site of Bishop MacKenzie (1825-1862) in an overgrown jungle that these photographs were not taken before 1862. It also includes a photograph of "Ngombi Sazi, Livingstone's personal friend". Some sections of this album have headings such as "A native industry: exceedingly ancient ironworkers", 'A Lakeshore industry of fishermen", "Native religion: the witch doctor", and "Missionary work". Its red cloth binding is faded and appears to be water damaged and soiled. Its spine is missing except for a small tail. Its cover has the title "Sweet memories".
DOI: 10.25549/impa-c123-48813
title: Scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]

description: Photo album of scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]. Appeared to have been taken by a missionary, it has 66 images of the daily life of chiefs, slaves, men, women, children, iron workers, hunters, witch doctors and the missionary himself. Each page including the back of the front cover and the front of the back cover has three photographs, all in black and white. All photographs have captions in ink. It appears from the captions that most of the photographs were taken in Malawi which was then known Nysaland. It can be implied from the presence of a photograph of the grave site of Bishop MacKenzie (1825-1862) in an overgrown jungle that these photographs were not taken before 1862. It also includes a photograph of "Ngombi Sazi, Livingstone's personal friend". Some sections of this album have headings such as "A native industry: exceedingly ancient ironworkers", 'A Lakeshore industry of fishermen", "Native religion: the witch doctor", and "Missionary work". Its red cloth binding is faded and appears to be water damaged and soiled. Its spine is missing except for a small tail. Its cover has the title "Sweet memories".
DOI: 10.17632/nvb6zm8d7y.1
title: Dataset - Peruvian Scientific Production in Computer Science from 2012 to 2021

description: Dataset of Peruvian Scientific Production in Computer Science from 2012 to 2021
DOI: 10.17632/fgpmncympt.1
title: Aplicações da Internet das Coisas: pesquisa exploratória da produção científica

description: Conjunto de dados levantados como parte da pesquisa intitulada: "Aplicações da Internet das Coisas: pesquisa exploratória da produção científica".
DOI: 10.25549/impa-c123-48804
title: Scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]

description: Photo album of scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]. Appeared to have been taken by a missionary, it has 66 images of the daily life of chiefs, slaves, men, women, children, iron workers, hunters, witch doctors and the missionary himself. Each page including the back of the front cover and the front of the back cover has three photographs, all in black and white. All photographs have captions in ink. It appears from the captions that most of the photographs were taken in Malawi which was then known Nysaland. It can be implied from the presence of a photograph of the grave site of Bishop MacKenzie (1825-1862) in an overgrown jungle that these photographs were not taken before 1862. It also includes a photograph of "Ngombi Sazi, Livingstone's personal friend". Some sections of this album have headings such as "A native industry: exceedingly ancient ironworkers", 'A Lakeshore industry of fishermen", "Native religion: the witch doctor", and "Missionary work". Its red cloth binding is faded and appears to be water damaged and soiled. Its spine is missing except for a small tail. Its cover has the title "Sweet memories".
DOI: 10.25549/impa-c123-48814
title: Scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]

description: Photo album of scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]. Appeared to have been taken by a missionary, it has 66 images of the daily life of chiefs, slaves, men, women, children, iron workers, hunters, witch doctors and the missionary himself. Each page including the back of the front cover and the front of the back cover has three photographs, all in black and white. All photographs have captions in ink. It appears from the captions that most of the photographs were taken in Malawi which was then known Nysaland. It can be implied from the presence of a photograph of the grave site of Bishop MacKenzie (1825-1862) in an overgrown jungle that these photographs were not taken before 1862. It also includes a photograph of "Ngombi Sazi, Livingstone's personal friend". Some sections of this album have headings such as "A native industry: exceedingly ancient ironworkers", 'A Lakeshore industry of fishermen", "Native religion: the witch doctor", and "Missionary work". Its red cloth binding is faded and appears to be water damaged and soiled. Its spine is missing except for a small tail. Its cover has the title "Sweet memories".
DOI: 10.25549/impa-c123-48796
title: Scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]

description: Photo album of scenes of daily life of natives and a foreign missionary in Malawi, [s.d.]. Appeared to have been taken by a missionary, it has 66 images of the daily life of chiefs, slaves, men, women, children, iron workers, hunters, witch doctors and the missionary himself. Each page including the back of the front cover and the front of the back cover has three photographs, all in black and white. All photographs have captions in ink. It appears from the captions that most of the photographs were taken in Malawi which was then known Nysaland. It can be implied from the presence of a photograph of the grave site of Bishop MacKenzie (1825-1862) in an overgrown jungle that these photographs were not taken before 1862. It also includes a photograph of "Ngombi Sazi, Livingstone's personal friend". Some sections of this album have headings such as "A native industry: exceedingly ancient ironworkers", 'A Lakeshore industry of fishermen", "Native religion: the witch doctor", and "Missionary work". Its red cloth binding is faded and appears to be water damaged and soiled. Its spine is missing except for a small tail. Its cover has the title "Sweet memories".