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Unlike the presentation format in a typical delay discounting task (e.g., Would you prefer [A] US$4.3 today OR [B] US$7.5 in 22 days?), Magen et al. inserted a zero to each alternative (e.g., Would you prefer [A] US$4.3 today and US$0 in 22 days OR [B] US$0 today and US$7.5 in 22 days?) and found this manipulation effectively reduced delay discounting (d= .84), which was referred to as the hidden-zero effect. Study 1 was a direct replication of this effect. In Study 2, we tested whether the explicit-zero format could buffer against the detrimental effect of exposure to sexy cues on delay discounting. In Study 3, we explored the mechanism underlying the hidden-zero effect. Taken together, the hidden-zero effect was consistently found across all studies (N= 2,440) and our internal meta-analysis yielded a medium to large effect size (d= .52).

The discovery of complete ammonia oxidizers, comammox Nitrospira, represents a breakthrough in the history of nitrification research. Nitrospira inopinata, which was obtained from the aquatic ecosystem, is the only pure comammox bacterial isolate reported so far. Ammonia oxidation kinetics of N. inopinata revealed that they prefer an oligotrophic lifestyle, but such evidence in terrestrial ecosystems is lacking. The niche differentiation between comammox Nitrospira and canonical ammonia oxidizers, and the relative contribution of comammox Nitrospira to soils are largely unknown. Here, the responses of comammox Nitrospira to nitrogen (N) fertilizers and nitrification inhibitors (NIs) in agricultural and forest soils, and metabolic activity and community composition of comammox Nitrospira involved in soil nitrification process, and the biogeographical distribution and ecological preference of comammox Nitrospira in large-scale soil surveys were studied in order to improve our understanding of the potential role of comammox Nitrospira in terrestrial ecosystems. The microcosm incubations treated with different N fertilizers (ammonium sulfate and urea) in agricultural and forest soils demonstrated that nitrogen applications significantly increased the abundance of comammox Nitrospira clade A over time. Besides, six NIs, including acetylene (C2H2), 2-chloro-6-(trichloromethyl) pyridine (nitrapyrin), 3,4-dimethylpyrazole phosphate (DMPP), allylthiourea (ATU), dicyandiamide (DCD) and 1-octyne (C8H14) were applied in two agricultural soils, including arable and pasture soils. The results revealed that the amendment of all the six NIs significantly decreased soil nitrate concentrations, but to varying degrees throughout the incubations. Except for C8H14, the other five NIs effectively inhibited the growth of comammox Nitrospira clade A in the pasture soil. 13CO2-DNA-stable isotope probing (SIP) revealed that comammox Nitrospira clade A incorporated 13CO2 into their genomes in

Unlike the presentation format in a typical delay discounting task (e.g., "Would you prefer [A] US$4.3 today OR [B] US$7.5 in 22 days?"), Magen et al. inserted a zero to each alternative (e.g., "Would you prefer [A] US$4.3 today and US$0 in 22 days OR [B] US$0 today and US$7.5 in 22 days?") and found this manipulation effectively reduced delay discounting (d= .84), which was referred to as the hidden-zero effect. Study 1 was a direct replication of this effect. In Study 2, we tested whether the explicit-zero format could buffer against the detrimental effect of exposure to sexy cues on delay discounting. In Study 3, we explored the mechanism underlying the hidden-zero effect. Taken together, the hidden-zero effect was consistently found across all studies (N= 2,440) and our internal meta-analysis yielded a medium to large effect size (d= .52).

Unlike the presentation format in a typical delay discounting task (e.g., "Would you prefer [A] US$4.3 today OR [B] US$7.5 in 22 days?"), Magen et al. inserted a zero to each alternative (e.g., "Would you prefer [A] US$4.3 today and US$0 in 22 days OR [B] US$0 today and US$7.5 in 22 days?") and found this manipulation effectively reduced delay discounting (d= .84), which was referred to as the hidden-zero effect. Study 1 was a direct replication of this effect. In Study 2, we tested whether the explicit-zero format could buffer against the detrimental effect of exposure to sexy cues on delay discounting. In Study 3, we explored the mechanism underlying the hidden-zero effect. Taken together, the hidden-zero effect was consistently found across all studies (N= 2,440) and our internal meta-analysis yielded a medium to large effect size (d= .52).

Unlike the presentation format in a typical delay discounting task (e.g., "Would you prefer [A] US$4.3 today OR [B] US$7.5 in 22 days?"), Magen et al. inserted a zero to each alternative (e.g., "Would you prefer [A] US$4.3 today and US$0 in 22 days OR [B] US$0 today and US$7.5 in 22 days?") and found this manipulation effectively reduced delay discounting (d= .84), which was referred to as the hidden-zero effect. Study 1 was a direct replication of this effect. In Study 2, we tested whether the explicit-zero format could buffer against the detrimental effect of exposure to sexy cues on delay discounting. In Study 3, we explored the mechanism underlying the hidden-zero effect. Taken together, the hidden-zero effect was consistently found across all studies (N= 2,440) and our internal meta-analysis yielded a medium to large effect size (d= .52).

Unlike the presentation format in a typical delay discounting task (e.g., "Would you prefer [A] US$4.3 today OR [B] US$7.5 in 22 days?"), Magen et al. inserted a zero to each alternative (e.g., "Would you prefer [A] US$4.3 today and US$0 in 22 days OR [B] US$0 today and US$7.5 in 22 days?") and found this manipulation effectively reduced delay discounting (d= .84), which was referred to as the hidden-zero effect. Study 1 was a direct replication of this effect. In Study 2, we tested whether the explicit-zero format could buffer against the detrimental effect of exposure to sexy cues on delay discounting. In Study 3, we explored the mechanism underlying the hidden-zero effect. Taken together, the hidden-zero effect was consistently found across all studies (N= 2,440) and our internal meta-analysis yielded a medium to large effect size (d= .52).

Unlike the presentation format in a typical delay discounting task (e.g., "Would you prefer [A] US$4.3 today OR [B] US$7.5 in 22 days?"), Magen et al. inserted a zero to each alternative (e.g., "Would you prefer [A] US$4.3 today and US$0 in 22 days OR [B] US$0 today and US$7.5 in 22 days?") and found this manipulation effectively reduced delay discounting (d= .84), which was referred to as the hidden-zero effect. Study 1 was a direct replication of this effect. In Study 2, we tested whether the explicit-zero format could buffer against the detrimental effect of exposure to sexy cues on delay discounting. In Study 3, we explored the mechanism underlying the hidden-zero effect. Taken together, the hidden-zero effect was consistently found across all studies (N= 2,440) and our internal meta-analysis yielded a medium to large effect size (d= .52).

Passive mode-locking of a thulium doped Lu3Al5O12 ceramic laser is demonstrated at 2022 nm. By applying different near surface GaSb-based saturable absorber mirrors, stable self-starting mode-locked operation with pulse durations between 2 and 4 picoseconds was achieved at a repetition rate of 92 MHz. The SESAM mode-locked Tm:LuAG ceramic laser exhibits an excellent stability with a fundamental beat note extinction ratio of 80 dB above the noise level. Furthermore, spectroscopic properties of Tm:LuAG ceramics at room temperature are presented. (C) 2017 Optical Society of America

A passively mode-locked Ho:YAG ceramic laser around 2.1 mu m is demonstrated using GaSb-based near-surface SESAM as saturable absorber. Stable and self-starting mode-locked operation is realized in the entire tuning range from 2059 to 2121 nm. The oscillator operated at 82 MHz with a maximum output power of 230 mW at 2121 nm. The shortest pulses with duration of 2.1 ps were achieved at 2064 nm. We also present spectroscopic properties of Ho:YAG ceramics at room temperature. (C) 2016 Optical Society of America