A female inmate at a women’s prison in Colorado has filed a legal complaint against the Department of Corrections (CDOC) arguing that the placement of trans-identified male convicts in the facility vi...

A female inmate at a women’s prison in Colorado has filed a legal complaint against the Department of Corrections (CDOC) arguing that the placement of trans-identified male convicts in the facility vi...

YouTube video by Calibre - Topic

A female inmate at a women’s prison in Colorado has filed a legal complaint against the Department of Corrections (CDOC) arguing that the placement of trans-identified male convicts in the facility vi...

Corrections staff protect Colorado communities. Learn how our union is winning overtime protections, safety standards, and respect for your work.

YouTube video by Night Tapes

It's been four years in the making, but a judge has finally ruled in a class action lawsuit against the CDOC and Gov. Polis, finding they violated the state constitution by forcing prisoners to work.

YouTube video by Felicity Tarot

Read more here.

The stable carbon isotope (δ13CDOC) of dissolved organic carbon (DOC) is one of the most informative tracers for marine carbon cycling studies. Yet its determination is critically constrained by reliance on isotope ratio mass spectrometry (IRMS). Conventional IRMS-based methods require large sample volumes and labor-intensive pretreatment but offer low measurement throughput, significantly limiting their application in field research and high spatiotemporal resolution studies. To resolve these issues, we developed a field-deployable δ13CDOC analysis method and established an IRMS-independent device by coupling a self-developed ultrahigh-sensitivity mid-infrared tunable diode laser absorption spectroscopy (MIR-TDLAS) isotope spectrometer with a high-temperature catalytic oxidation (HTC) module, enabling a continuous “injection-oxidation-analysis” workflow on a single platform. Integrated with hardware enhancements and a physical-model-based spectral processing algorithm, the device achieved an approximately 100-fold improvement in sensitivity for both 12CO2 and 13CO2, yielding detection limits of 3.98 ppbv and 70 pptv, respectively. This performance enabled quantification of isotope signals from ppmv-level CO2 without any CO2 trapping or enrichment. Only 300 μL of seawater was required to determine δ13CDOC within approximately 6 min, providing a δ13C precision of ∼1.0‰. A measurement deviation of less than 0.336‰ was achieved using an empirical correction model developed to correct concentration-dependent isotopic bias. By demonstrating its rapidness, precision, and portability, this laser absorption spectroscopy-based method establishes a novel approach for high-throughput and field-deployable DOC carbon isotope analysis.

The Department of Justice Civil Rights Division has announced a special investigation into conditions inside Colorado Department of Corrections (CDOC) ...